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NIFI-12070 Removed nifi-easyrules-bundle 

This closes #7738

Signed-off-by: David Handermann <exceptionfactory@apache.org>
This commit is contained in:
Joseph Witt 2023-09-15 11:16:06 -07:00 committed by exceptionfactory
parent bd2276260e
commit c042a48c86
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12
nifi-assembly/pom.xml
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@ -1120,12 +1120,6 @@ language governing permissions and limitations under the License. -->
</property>
</activation>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-easyrules-nar</artifactId>
<version>2.0.0-SNAPSHOT</version>
<type>nar</type>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-rules-action-handler-nar</artifactId>
@ -1150,12 +1144,6 @@ language governing permissions and limitations under the License. -->
<version>2.0.0-SNAPSHOT</version>
<type>nar</type>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-easyrules-nar</artifactId>
<version>2.0.0-SNAPSHOT</version>
<type>nar</type>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-rules-action-handler-nar</artifactId>

43
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-nar/pom.xml
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@ -1,43 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<parent>
<artifactId>nifi-easyrules-bundle</artifactId>
<groupId>org.apache.nifi</groupId>
<version>2.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>nifi-easyrules-nar</artifactId>
<packaging>nar</packaging>
<properties>
<maven.javadoc.skip>true</maven.javadoc.skip>
<source.skip>true</source.skip>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-easyrules-service</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-standard-services-api-nar</artifactId>
<version>2.0.0-SNAPSHOT</version>
<type>nar</type>
</dependency>
</dependencies>
</project>

258
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-nar/src/main/resources/META-INF/LICENSE
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@ -1,258 +0,0 @@
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46
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-nar/src/main/resources/META-INF/NOTICE
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@ -1,46 +0,0 @@
nifi-easyrules-nar
Copyright 2014-2023 The Apache Software Foundation
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).
******************
Apache Software License v2
******************
The following binary components are provided under the Apache Software License v2
(ASLv2) MVEL (MVFLEX Expression Language)
(ASLv2) SnakeYAML
(ASLv2) Jackson JSON processor
The following NOTICE information applies:
# Jackson JSON processor
Jackson is a high-performance, Free/Open Source JSON processing library.
It was originally written by Tatu Saloranta (tatu.saloranta@iki.fi), and has
been in development since 2007.
It is currently developed by a community of developers, as well as supported
commercially by FasterXML.com.
## Licensing
Jackson core and extension components may licensed under different licenses.
To find the details that apply to this artifact see the accompanying LICENSE file.
For more information, including possible other licensing options, contact
FasterXML.com (http://fasterxml.com).
## Credits
A list of contributors may be found from CREDITS file, which is included
in some artifacts (usually source distributions); but is always available
from the source code management (SCM) system project uses.
************************
The MIT License
************************
The following binary components are provided under the MIT License.
(MIT License) Easy Rules

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nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/pom.xml
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@ -1,106 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<parent>
<artifactId>nifi-easyrules-bundle</artifactId>
<groupId>org.apache.nifi</groupId>
<version>2.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>nifi-easyrules-service</artifactId>
<packaging>jar</packaging>
<properties>
<easy.rules.version>4.1.0</easy.rules.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-rules-engine-service-api</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.yaml</groupId>
<artifactId>snakeyaml</artifactId>
</dependency>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-utils</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.jeasy</groupId>
<artifactId>easy-rules-core</artifactId>
<version>${easy.rules.version}</version>
</dependency>
<dependency>
<groupId>org.jeasy</groupId>
<artifactId>easy-rules-mvel</artifactId>
<version>${easy.rules.version}</version>
</dependency>
<dependency>
<groupId>org.jeasy</groupId>
<artifactId>easy-rules-spel</artifactId>
<version>${easy.rules.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-jexl3</artifactId>
<version>3.3</version>
<exclusions>
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- test -->
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-mock</artifactId>
<version>2.0.0-SNAPSHOT</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.rat</groupId>
<artifactId>apache-rat-plugin</artifactId>
<configuration>
<excludes combine.children="append">
<exclude>src/test/resources/test_nifi_rules.json</exclude>
<exclude>src/test/resources/test_nifi_rules.yml</exclude>
<exclude>src/test/resources/test_nifi_rules_filter.json</exclude>
<exclude>src/test/resources/test_mvel_rules.json</exclude>
<exclude>src/test/resources/test_mvel_rules.yml</exclude>
<exclude>src/test/resources/test_spel_rules.json</exclude>
<exclude>src/test/resources/test_bad_spel_rules.json</exclude>
<exclude>src/test/resources/test_spel_rules.yml</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>

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nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/main/java/org/apache/nifi/rules/RulesFactory.java
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@ -1,137 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.jeasy.rules.support.reader.JsonRuleDefinitionReader;
import org.jeasy.rules.support.RuleDefinition;
import org.jeasy.rules.support.reader.RuleDefinitionReader;
import org.jeasy.rules.support.reader.YamlRuleDefinitionReader;
import org.yaml.snakeyaml.LoaderOptions;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* Factory which transform file based rules into NiFi Rules API. Rules formats supported are NiFi Rules format and
* Easy Rules MVEL and SPEL formats. JSON and YaML file types are support for both formats
*/
public class RulesFactory {
enum FileType {
YAML, JSON;
}
enum FileFormat {
NIFI, MVEL, SPEL;
}
public static List<Rule> createRulesFromFile(String ruleFile, String ruleFileType, String rulesFileFormat) throws Exception {
try (final InputStream rulesInputStream = new FileInputStream(ruleFile)) {
return createRules(rulesInputStream, ruleFileType, rulesFileFormat);
}
}
public static List<Rule> createRulesFromString(String rulesBody, String ruleFileType, String rulesFileFormat) throws Exception {
try (final InputStream rulesInputStream = new ByteArrayInputStream(rulesBody.getBytes())) {
return createRules(rulesInputStream, ruleFileType, rulesFileFormat);
}
}
private static List<Rule> createRules(InputStream rulesInputStream, String ruleFileType, String rulesFileFormat) throws Exception {
FileFormat fileFormat = FileFormat.valueOf(rulesFileFormat);
switch (fileFormat) {
case NIFI:
return createRulesFromNiFiFormat(rulesInputStream, ruleFileType);
case MVEL:
case SPEL:
return createRulesFromEasyRulesFormat(rulesInputStream, ruleFileType, rulesFileFormat);
default:
return null;
}
}
private static List<Rule> createRulesFromEasyRulesFormat(InputStream rulesInputStream, String ruleFileType, String ruleFileFormat) throws Exception {
RuleDefinitionReader reader = FileType.valueOf(ruleFileType).equals(FileType.YAML)
? new YamlRuleDefinitionReader() : new JsonRuleDefinitionReader();
List<RuleDefinition> ruleDefinitions = reader.read(new InputStreamReader(rulesInputStream));
return ruleDefinitions.stream().map(ruleDefinition -> {
Rule rule = new Rule();
rule.setName(ruleDefinition.getName());
rule.setDescription(ruleDefinition.getDescription());
rule.setPriority(ruleDefinition.getPriority());
rule.setCondition(ruleDefinition.getCondition());
List<Action> actions = ruleDefinition.getActions().stream().map(ruleAction -> {
Action action = new Action();
action.setType("EXPRESSION");
Map<String, String> attributes = new HashMap<>();
attributes.put("command", ruleAction);
attributes.put("type", ruleFileFormat);
action.setAttributes(attributes);
return action;
}).collect(Collectors.toList());
rule.setActions(actions);
return rule;
}).collect(Collectors.toList());
}
private static List<Rule> createRulesFromNiFiFormat(InputStream rulesInputStream, String ruleFileType) throws Exception {
FileType type = FileType.valueOf(ruleFileType.toUpperCase());
if (type.equals(FileType.YAML)) {
return yamlToRules(rulesInputStream);
} else if (type.equals(FileType.JSON)) {
return jsonToRules(rulesInputStream);
} else {
return null;
}
}
private static List<Rule> yamlToRules(InputStream rulesInputStream) throws FileNotFoundException {
List<Rule> rules = new ArrayList<>();
Yaml yaml = new Yaml(new Constructor(Rule.class, new LoaderOptions()));
for (Object object : yaml.loadAll(rulesInputStream)) {
if (object instanceof Rule) {
rules.add((Rule) object);
}
}
return rules;
}
private static List<Rule> jsonToRules(InputStream rulesInputStream) throws Exception {
List<Rule> rules;
InputStreamReader isr = new InputStreamReader(rulesInputStream);
final ObjectMapper objectMapper = new ObjectMapper();
rules = objectMapper.readValue(isr, new TypeReference<List<Rule>>() {
});
return rules;
}
}

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nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/main/java/org/apache/nifi/rules/RulesMVELCondition.java
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@ -1,53 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules;
import org.jeasy.rules.api.Condition;
import org.jeasy.rules.api.Facts;
import org.mvel2.MVEL;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Serializable;
public class RulesMVELCondition implements Condition {
private static final Logger LOGGER = LoggerFactory.getLogger(RulesMVELCondition.class);
private String expression;
private Serializable compiledExpression;
private boolean ignoreConditionErrors;
public RulesMVELCondition(String expression, boolean ignoreConditionErrors) {
this.expression = expression;
this.compiledExpression = MVEL.compileExpression(expression);
this.ignoreConditionErrors = ignoreConditionErrors;
}
public boolean evaluate(Facts facts) {
try {
return (Boolean)MVEL.executeExpression(this.compiledExpression, facts.asMap());
} catch (Exception ex) {
if(ignoreConditionErrors) {
LOGGER.debug("Unable to evaluate expression: '" + this.expression + "' on facts: " + facts, ex);
return false;
} else{
throw ex;
}
}
}
}

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nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/main/java/org/apache/nifi/rules/RulesSPELCondition.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules;
import org.jeasy.rules.api.Condition;
import org.jeasy.rules.api.Facts;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.expression.Expression;
import org.springframework.expression.ExpressionParser;
import org.springframework.expression.ParserContext;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.expression.spel.support.StandardEvaluationContext;
public class RulesSPELCondition implements Condition {
private static final Logger LOGGER = LoggerFactory.getLogger(RulesSPELCondition.class);
private final ExpressionParser parser = new SpelExpressionParser();
private String expression;
private Expression compiledExpression;
private boolean ignoreConditionErrors;
public RulesSPELCondition(String expression) {
this.expression = expression;
this.compiledExpression = this.parser.parseExpression(expression);
}
public RulesSPELCondition(String expression, ParserContext parserContext) {
this.expression = expression;
this.compiledExpression = this.parser.parseExpression(expression, parserContext);
}
public RulesSPELCondition(String expression, boolean ignoreConditionErrors) {
this.expression = expression;
this.compiledExpression = this.parser.parseExpression(expression);
this.ignoreConditionErrors = ignoreConditionErrors;
}
public RulesSPELCondition(String expression, ParserContext parserContext, boolean ignoreConditionErrors) {
this.expression = expression;
this.compiledExpression = this.parser.parseExpression(expression, parserContext);
this.ignoreConditionErrors = ignoreConditionErrors;
}
public boolean evaluate(Facts facts) {
try {
StandardEvaluationContext context = new StandardEvaluationContext();
context.setRootObject(facts.asMap());
context.setVariables(facts.asMap());
return this.compiledExpression.getValue(context, Boolean.class);
} catch (Exception ex) {
if(ignoreConditionErrors) {
LOGGER.debug("Unable to evaluate expression: '" + this.expression + "' on facts: " + facts, ex);
return false;
} else{
throw ex;
}
}
}
}

185
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@ -1,185 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.annotation.lifecycle.OnEnabled;
import org.apache.nifi.components.AllowableValue;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.components.ValidationContext;
import org.apache.nifi.components.ValidationResult;
import org.apache.nifi.components.Validator;
import org.apache.nifi.components.resource.ResourceCardinality;
import org.apache.nifi.components.resource.ResourceType;
import org.apache.nifi.controller.AbstractControllerService;
import org.apache.nifi.controller.ConfigurationContext;
import org.apache.nifi.controller.ControllerServiceInitializationContext;
import org.apache.nifi.expression.ExpressionLanguageScope;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.rules.Rule;
import org.apache.nifi.rules.RulesFactory;
import org.apache.nifi.util.StringUtils;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
public abstract class AbstractEasyRulesEngineController extends AbstractControllerService {
static final AllowableValue YAML = new AllowableValue("YAML", "YAML", "YAML file configuration type.");
static final AllowableValue JSON = new AllowableValue("JSON", "JSON", "JSON file configuration type.");
static final AllowableValue NIFI = new AllowableValue("NIFI", "NIFI", "NiFi rules formatted file.");
static final AllowableValue MVEL = new AllowableValue("MVEL", "Easy Rules MVEL", "Easy Rules File format using MVFLEX Expression Language");
static final AllowableValue SPEL = new AllowableValue("SPEL", "Easy Rules SpEL", "Easy Rules File format using Spring Expression Language");
static final PropertyDescriptor RULES_FILE_PATH = new PropertyDescriptor.Builder()
.name("rules-file-path")
.displayName("Rules File Path")
.description("Path to location of rules file. Only one of Rules File or Rules Body may be used")
.required(false)
.identifiesExternalResource(ResourceCardinality.SINGLE, ResourceType.FILE)
.expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY)
.build();
static final PropertyDescriptor RULES_BODY = new PropertyDescriptor.Builder()
.name("rules-body")
.displayName("Rules Body")
.description("Body of rules file to execute. Only one of Rules File or Rules Body may be used")
.required(false)
.addValidator(Validator.VALID)
.expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY)
.build();
static final PropertyDescriptor RULES_FILE_TYPE = new PropertyDescriptor.Builder()
.name("rules-file-type")
.displayName("Rules File Type")
.description("File or Body type for rules definition. Supported types are YAML and JSON")
.required(true)
.allowableValues(JSON,YAML)
.defaultValue(JSON.getValue())
.build();
static final PropertyDescriptor RULES_FILE_FORMAT = new PropertyDescriptor.Builder()
.name("rules-file-format")
.displayName("Rules File Format")
.description("Format for rules. Supported formats are NiFi Rules, Easy Rules files with MVEL Expression Language" +
" and Easy Rules files with Spring Expression Language.")
.required(true)
.allowableValues(NIFI,MVEL,SPEL)
.defaultValue(NIFI.getValue())
.build();
static final PropertyDescriptor IGNORE_CONDITION_ERRORS = new PropertyDescriptor.Builder()
.name("rules-ignore-condition-errors")
.displayName("Ignore Condition Errors")
.description("When set to true, rules engine will ignore errors for any rule that encounters issues " +
"when compiling rule conditions (including syntax errors and/or missing facts). Rule will simply return as false " +
"and engine will continue with execution.")
.required(true)
.defaultValue("false")
.allowableValues("true", "false")
.build();
static final PropertyDescriptor FILTER_RULES_MISSING_FACTS = new PropertyDescriptor.Builder()
.name("rules-filter-missing-facts")
.displayName("Filter Rules With Missing Facts")
.description("When set to true, the rules engine will first filter out any rule where fact are not available before " +
"executing a check or firing that rule. When running a check rules this will return only rules " +
"that were evaluated after filtering. NOTE: This is only applicable for the NIFI Rules Format (which allows" +
" specification of fact variables) and will be ignored for other formats.")
.required(true)
.defaultValue("false")
.allowableValues("true", "false")
.build();
protected List<PropertyDescriptor> properties;
protected List<Rule> rules;
protected volatile String rulesFileFormat;
protected boolean ignoreConditionErrors;
protected boolean filterRules;
@Override
protected void init(ControllerServiceInitializationContext config) throws InitializationException {
super.init(config);
final List<PropertyDescriptor> properties = new ArrayList<>();
properties.add(RULES_FILE_TYPE);
properties.add(RULES_FILE_PATH);
properties.add(RULES_BODY);
properties.add(RULES_FILE_FORMAT);
properties.add(IGNORE_CONDITION_ERRORS);
properties.add(FILTER_RULES_MISSING_FACTS);
this.properties = Collections.unmodifiableList(properties);
}
@Override
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
return properties;
}
@OnEnabled
public void onEnabled(final ConfigurationContext context) throws InitializationException {
final String rulesFile = context.getProperty(RULES_FILE_PATH).getValue();
final String rulesBody = context.getProperty(RULES_BODY).getValue();
final String rulesFileType = context.getProperty(RULES_FILE_TYPE).getValue();
rulesFileFormat = context.getProperty(RULES_FILE_FORMAT).getValue();
ignoreConditionErrors = context.getProperty(IGNORE_CONDITION_ERRORS).asBoolean();
filterRules = context.getProperty(FILTER_RULES_MISSING_FACTS).asBoolean();
try{
if(StringUtils.isEmpty(rulesFile)){
rules = RulesFactory.createRulesFromString(rulesBody, rulesFileType, rulesFileFormat);
}else{
rules = RulesFactory.createRulesFromFile(rulesFile, rulesFileType, rulesFileFormat);
}
} catch (Exception fex){
throw new InitializationException(fex);
}
}
/**
* Custom validation for ensuring exactly one of Script File or Script Body is populated
*
* @param validationContext provides a mechanism for obtaining externally
* managed values, such as property values and supplies convenience methods
* for operating on those values
* @return A collection of validation results
*/
@Override
public Collection<ValidationResult> customValidate(ValidationContext validationContext) {
Set<ValidationResult> results = new HashSet<>();
// Verify that exactly one of "script file" or "script body" is set
Map<PropertyDescriptor, String> propertyMap = validationContext.getProperties();
if (StringUtils.isEmpty(propertyMap.get(RULES_FILE_PATH)) == StringUtils.isEmpty(propertyMap.get(RULES_BODY))) {
results.add(new ValidationResult.Builder().subject("Rules Body or Rules File").valid(false).explanation(
"exactly one of Rules File or Rules Body must be set").build());
}
return results;
}
protected RulesEngine getRulesEngine() {
List<Rule> rulesCopy = new ArrayList<>();
rules.forEach(rule -> {
rulesCopy.add(rule.clone());
});
return new EasyRulesEngine(rulesFileFormat, ignoreConditionErrors, filterRules, Collections.unmodifiableList(rulesCopy));
}
}

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@ -1,179 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.rules.Action;
import org.apache.nifi.rules.Rule;
import org.apache.nifi.rules.RulesMVELCondition;
import org.apache.nifi.rules.RulesSPELCondition;
import org.jeasy.rules.api.Condition;
import org.jeasy.rules.api.Fact;
import org.jeasy.rules.api.Facts;
import org.jeasy.rules.api.RuleListener;
import org.jeasy.rules.api.Rules;
import org.jeasy.rules.core.BasicRule;
import org.jeasy.rules.core.DefaultRulesEngine;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
public class EasyRulesEngine implements RulesEngine {
protected String rulesFileFormat;
protected boolean ignoreConditionErrors;
protected boolean filterRulesMissingFacts;
protected Rules easyRules;
protected List<RuleListener> ruleListeners;
protected DefaultRulesEngine rulesEngine;
public EasyRulesEngine(String rulesFileFormat, boolean ignoreConditionErrors, boolean filterRulesMissingFacts, List<Rule> rules) {
this.rulesFileFormat = rulesFileFormat;
this.ignoreConditionErrors = ignoreConditionErrors;
this.filterRulesMissingFacts = filterRulesMissingFacts;
this.easyRules = convertToEasyRules(rules, rulesFileFormat, ignoreConditionErrors);
this.rulesEngine = new DefaultRulesEngine();
if (getRuleListeners() != null) {
rulesEngine.registerRuleListeners(getRuleListeners());
}
}
/**
* Return the list of actions what should be executed for a given set of facts
*
* @param facts a Map of key and facts values, as objects, that should be evaluated by the rules engine
* @return List of Actions
*/
@Override
public List<Action> fireRules(Map<String, Object> facts) {
final List<Action> actions = new ArrayList<>();
Map<Rule, Boolean> checkedRules = checkRules(facts);
checkedRules.forEach((checkedRule, executeRule) -> {
if (executeRule) {
actions.addAll(checkedRule.getActions());
}
});
return actions;
}
/**
* Return a Map with Rule as a key and Boolean as a value indicating that the rule's conditions were met
*
* @param facts Map of keys and values contains facts to evaluate against rules
* @return Map of Rules
*/
@Override
public Map<Rule, Boolean> checkRules(Map<String, Object> facts) {
Map<Rule, Boolean> checkedRules = new HashMap<>();
if (easyRules == null || facts == null || facts.isEmpty()) {
return null;
} else {
Facts easyFacts = new Facts();
facts.forEach(easyFacts::put);
Map<org.jeasy.rules.api.Rule, Boolean> checkedEasyRules = rulesEngine.check(filterRulesMissingFacts ? filterByAvailableFacts(facts) : easyRules, easyFacts);
checkedEasyRules.forEach((checkedRuled, executeAction) -> {
checkedRules.put(((NiFiEasyRule) checkedRuled).getNifiRule(), executeAction);
});
}
return checkedRules;
}
public List<Rule> getRules() {
return StreamSupport.stream(easyRules.spliterator(), false)
.map(easyRule -> ((NiFiEasyRule) easyRule)
.getNifiRule()).collect(Collectors.toList());
}
List<RuleListener> getRuleListeners() {
return ruleListeners;
}
void setRuleListeners(List<RuleListener> ruleListeners) {
this.ruleListeners = ruleListeners;
}
private org.jeasy.rules.api.Rules convertToEasyRules(List<Rule> rules, String rulesFileFormat, Boolean ignoreConditionErrors) {
final Rules easyRules = new Rules();
for (Rule rule : rules) {
easyRules.register(new NiFiEasyRule(rule, rulesFileFormat, ignoreConditionErrors));
}
return easyRules;
}
private Rules filterByAvailableFacts(Map<String, Object> facts) {
Set<String> factVariables = facts.keySet();
List<org.jeasy.rules.api.Rule> filteredEasyRules = StreamSupport.stream(easyRules.spliterator(), false)
.filter(easyRule -> ((NiFiEasyRule) easyRule).getNifiRule().getFacts() == null || factVariables.containsAll(((NiFiEasyRule) easyRule)
.getNifiRule().getFacts())).collect(Collectors.toList());
return new Rules(new HashSet(filteredEasyRules));
}
private static class NiFiEasyRule extends BasicRule {
private Condition condition;
private Rule nifiRule;
NiFiEasyRule(Rule nifiRule, String rulesFileFormat, Boolean ignoreConditionErrors) {
super(nifiRule.getName(), nifiRule.getDescription(), nifiRule.getPriority());
this.condition = rulesFileFormat.equalsIgnoreCase("spel")
? new RulesSPELCondition(nifiRule.getCondition(), ignoreConditionErrors) : new RulesMVELCondition(nifiRule.getCondition(), ignoreConditionErrors);
this.nifiRule = nifiRule;
}
public boolean evaluate(Facts facts) {
final Facts evaluateFacts;
if (nifiRule.getFacts() != null) {
List<Fact<?>> filteredFacts = StreamSupport.stream(facts.spliterator(), false)
.filter(fact -> nifiRule.getFacts().contains(fact.getName())).collect(Collectors.toList());
if (filteredFacts.size() > 0) {
evaluateFacts = new Facts();
filteredFacts.forEach(filteredFact -> {
evaluateFacts.put(filteredFact.getName(), filteredFact.getValue());
});
} else {
evaluateFacts = facts;
}
} else {
evaluateFacts = facts;
}
return this.condition.evaluate(evaluateFacts);
}
Rule getNifiRule() {
return nifiRule;
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.Tags;
@CapabilityDescription("Provides an instance of a rules engine to the caller. Supports " +
"rules stored as JSON or YAML file types.")
@Tags({ "rules","rules-engine","engine","actions","facts" })
public class EasyRulesEngineProvider extends AbstractEasyRulesEngineController implements RulesEngineProvider {
/**
* Returns a rules engine instance
* @return Rules Engine
*/
@Override
public RulesEngine getRulesEngine() {
return super.getRulesEngine();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.annotation.lifecycle.OnEnabled;
import org.apache.nifi.controller.ConfigurationContext;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.rules.Action;
import org.jeasy.rules.api.Facts;
import org.jeasy.rules.api.RuleListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Implementation of RulesEngineService interface
*
* @see RulesEngineService
*/
@CapabilityDescription("Defines and execute the rules stored in NiFi or EasyRules file formats for a given set of facts. Supports " +
"rules stored as JSON or YAML file types.")
@Tags({ "rules","rules-engine","engine","actions","facts" })
public class EasyRulesEngineService extends EasyRulesEngineProvider implements RulesEngineService {
private volatile RulesEngine rulesEngine;
@Override
@OnEnabled
public void onEnabled(final ConfigurationContext context) throws InitializationException {
super.onEnabled(context);
EasyRulesEngine easyRulesEngine = (EasyRulesEngine) getRulesEngine();
List<RuleListener> ruleListeners = new ArrayList<>();
ruleListeners.add(new EasyRulesListener(getLogger()));
easyRulesEngine.setRuleListeners(ruleListeners);
rulesEngine = easyRulesEngine;
}
/**
* Return the list of actions what should be executed for a given set of facts
* @param facts a Map of key and facts values, as objects, that should be evaluated by the rules engine
* @return List of Actions
*/
@Override
public List<Action> fireRules(Map<String, Object> facts) {
return rulesEngine.fireRules(facts);
}
private static class EasyRulesListener implements RuleListener {
private ComponentLog logger;
EasyRulesListener(ComponentLog logger) {
this.logger = logger;
}
@Override
public boolean beforeEvaluate(org.jeasy.rules.api.Rule rule, Facts facts) {
return true;
}
@Override
public void afterEvaluate(org.jeasy.rules.api.Rule rule, Facts facts, boolean b) {
}
@Override
public void beforeExecute(org.jeasy.rules.api.Rule rule, Facts facts) {
}
@Override
public void onSuccess(org.jeasy.rules.api.Rule rule, Facts facts) {
logger.debug("Rules was successfully processed for: {}",new Object[]{rule.getName()});
}
@Override
public void onFailure(org.jeasy.rules.api.Rule rule, Facts facts, Exception e) {
logger.warn("Rule execution failed for: {}", new Object[]{rule.getName()}, e);
}
}
}

16
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@ -1,16 +0,0 @@
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
org.apache.nifi.rules.engine.EasyRulesEngineService
org.apache.nifi.rules.engine.EasyRulesEngineProvider

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<!DOCTYPE html>
<html lang="en">
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<head>
<meta charset="utf-8" />
<title>EasyRulesEngineService</title>
<link rel="stylesheet" href="../../../../../css/component-usage.css" type="text/css" />
</head>
<body>
<h2>General</h2>
<p>The Easy Rules Engine Service supports execution of a centralized set of rules (stored as files or provided within the service configuration) against a provided set of data called facts. It supports both the RulesEngineProvider
and RulesEngineService interfaces, allowing callers to send facts to the service to process against a centralized rules engine, or allowing them to retrieve an instance of a rules engine to process facts locally.
Upon execution, the rules engine will determine what rules have been met and return a list of actions that should be executed based on the conditions defined within the rules.
</p>
<p>
Rules can be implemented in any of the following formats:
</p>
<ul>
<li> NiFi Rules Format - This is a rules file which follows the NiFi style for rules definition, which supports MVEL (MVFLEX) Expression language for conditions (default format).
</li>
<li> Easy Rules Format with MVEL Support - This is a rules file which follows the Easy Rules style for rules definition that supports MVEL (MVFLEX) Expression language for conditions and actions
</li>
<li> Easy Rules Format with SPEL Support - This is a rules file which follows the Easy Rules style for rules definition that supports Spring Expression language for conditions and actions
</li>
</ul>
<p>
All rules formats can be structured as JSON or YAML (with JSON serving as default type). Rules can be stored as a file or provided in the Rules Body setting in the service's configuration settings.
</p>
<p>
NiFi Rules Format consist of the following elements:
</p>
<table>
<tr><td>Name</td><td>The name of the rule.</td></tr>
<tr><td>Description</td><td>A description of the rule.</td></tr>
<tr><td>Priority</td><td>Unique number for order in which rule should be executed in the rules engine.</td></tr>
<tr><td>Condition</td><td>The condition that will be checked given a set of fact data. For NiFi Format the MVEL expression language is supported.</td></tr>
<tr><td>Action(s)</td><td>The required actions that should be performed if the condition checked returns true. This includes the type of action and any attributes required to execute that action. Action types and attributes are string values that can be defined as needed.
The expectation is the types and attributes are understood by the caller/action executor.</td></tr>
<tr><td>Fact(s)</td><td>The name of fact item(s) that is required to execute the rule.</td></tr>
</table>
<p>
NiFi rules format is very similar to Easy Rules file format except the Action includes details for the type of action that should be performed along with attributes for performing the action.
This provides a more flexible way to configure external handlers that will execute returned actions. When Easy Rules formats are provided, easy rule actions are translated into an "EXPRESSION" NiFi action type where the attributes contains
the command that should be executed directly along with the supported expression language type (via a "command" and "type" attributes respectively).
</p>
<p>
The following are examples of NiFi Rules Format as YAML and JSON file types. In both cases a single rule is shown however multiple rule entries can be provided (following the appropriate multiple entry syntax for the given file type):
</p>
<p>
<b>NiFi Rules YAML File</b>: This file shows an example of a single rule which checks if predictedQueuedCount value (provided in facts) is greater than 50. If the condition is met an action with the type of "LOG" is defined,
which denotes the action that should be taken by the caller. Attributes for the "LOG" action type can be provided as demonstrated below with the "logLevel and "message" attributes. The caller can use these or other provided attributes in order
to configure and execute the "LOG" action.<br>
<pre>
name: "Queue Size"
description: "Queue size check greater than 50"
priority: 1
condition: "predictedQueuedCount > 50"
actions:
- type: "LOG"
attributes:
logLevel: "DEBUG"
message: "Queue Size Over 50 is detected!"
facts:
- "predictedQueuedCount"
</pre>
</p>
<p>
<b>NiFi Rules JSON File</b>: This file shows an example of a single rule which checks the size of a flowFile (with a flowFile being available via facts).
If the condition is met two actions are defined for execution (with types that should be recognized by the caller).<br>
<pre>
[
{
"name": "Large Flow File",
"description": "Flow File Size Larger Than Expected",
"priority": 1,
"condition": "flowFile.size > 500",
"actions": [
{
"type": "LOG",
"attributes": {
"logLevel": "WARN",
"message": "Unexpected file size!"
},
{
"type": "SEND",
"attributes": {
"sendZeroResults": "false"
}
}
],
"facts": ["flowFile"]
}
]
</pre>
</p>
</body>
</html>

90
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/TestRulesCondition.java
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@ -1,90 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules;
import org.jeasy.rules.api.Condition;
import org.jeasy.rules.api.Facts;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class TestRulesCondition {
@Test
public void testRulesMVELConditionPassed(){
String expression = "predictedTimeToBytesBackpressureMillis <= 14400000";
Facts facts = new Facts();
facts.put("predictedTimeToBytesBackpressureMillis",13300000);
Condition condition = new RulesMVELCondition(expression, false);
long start = System.currentTimeMillis();
boolean passed = condition.evaluate(facts);
long end = System.currentTimeMillis();
System.out.println("Total Time: " + (end - start));
assertTrue(passed);
}
@Test
public void testRulesMVELConditionFailed(){
String expression = "predictedQueuedCount > 50";
Facts facts = new Facts();
facts.put("predictedQueuedCount",49);
Condition condition = new RulesMVELCondition(expression, false);
assertFalse(condition.evaluate(facts));
}
@Test
public void testRulesMVELConditionError(){
String expression = "predictedQueuedCount > 50";
Facts facts = new Facts();
facts.put("predictedQueued",100);
Condition condition = new RulesMVELCondition(expression, false);
assertThrows(Exception.class, () -> condition.evaluate(facts));
}
@Test
public void testRulesSPELConditionPassed(){
String expression = "#predictedQueuedCount > 50";
Facts facts = new Facts();
facts.put("predictedQueuedCount",100);
Condition condition = new RulesSPELCondition(expression, false);
long start = System.currentTimeMillis();
boolean passed = condition.evaluate(facts);
long end = System.currentTimeMillis();
System.out.println("Total Time: " + (end - start));
assertTrue(passed);
}
@Test
public void testRulesSPELConditionFailed(){
String expression = "#predictedQueuedCount > 50";
Facts facts = new Facts();
facts.put("predictedQueuedCount",49);
Condition condition = new RulesSPELCondition(expression, false);
assertFalse(condition.evaluate(facts));
}
@Test
public void testRulesSPELConditionError(){
String expression = "predictedQueuedCount > 50";
Facts facts = new Facts();
facts.put("predictedQueuedCount",100);
Condition condition = new RulesSPELCondition(expression, false);
assertThrows(Exception.class, () -> condition.evaluate(facts));
}
}

166
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/TestRulesFactory.java
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@ -1,166 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class TestRulesFactory {
@Test
public void testCreateRulesFromNiFiYaml(){
assertDoesNotThrow(() -> {
String testYamlFile = "src/test/resources/test_nifi_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "NIFI");
assertEquals(2, rules.size());
assertTrue(confirmEntries(rules));
});
}
@Test
public void testCreateRulesFromMvelYaml(){
assertDoesNotThrow(() -> {
String testYamlFile = "src/test/resources/test_mvel_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "MVEL");
assertEquals(2, rules.size());
assertTrue(confirmEntries(rules));
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
});
}
@Test
public void testCreateRulesFromSpelYaml(){
assertDoesNotThrow(() -> {
String testYamlFile = "src/test/resources/test_spel_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "SPEL");
assertEquals(2, rules.size());
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
});
}
@Test
public void testCreateRulesFromNiFiJson(){
assertDoesNotThrow(() -> {
String testJsonFile = "src/test/resources/test_nifi_rules.json";
List<Rule> rules = RulesFactory.createRulesFromFile(testJsonFile, "JSON", "NIFI");
assertEquals(2, rules.size());
assertTrue(confirmEntries(rules));
});
}
@Test
public void testCreateRulesFromMvelJson(){
assertDoesNotThrow(() -> {
String testJsonFile = "src/test/resources/test_mvel_rules.json";
List<Rule> rules = RulesFactory.createRulesFromFile(testJsonFile, "JSON", "MVEL");
assertEquals(2, rules.size());
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
assertTrue(confirmEntries(rules));
});
}
@Test
public void testCreateRulesFromSpelJson(){
assertDoesNotThrow(() -> {
String testJsonFile = "src/test/resources/test_spel_rules.json";
List<Rule> rules = RulesFactory.createRulesFromFile(testJsonFile, "JSON", "SPEL");
assertEquals(2, rules.size());
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
});
}
@Test
public void testCreateRulesFromStringSpelJson(){
assertDoesNotThrow(() -> {
String testJson = "[\n" +
" {\n" +
" \"name\": \"Queue Size\",\n" +
" \"description\": \"Queue size check greater than 50\",\n" +
" \"priority\": 1,\n" +
" \"condition\": \"#predictedQueuedCount > 50\",\n" +
" \"actions\": [\"#predictedQueuedCount + 'is large'\"]\n" +
" },\n" +
" {\n" +
" \"name\": \"Time To Back Pressure\",\n" +
" \"description\": \"Back pressure time less than 5 minutes\",\n" +
" \"priority\": 2,\n" +
" \"condition\": \"#predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0\",\n" +
" \"actions\": [\"'System is approaching backpressure! Predicted time left: ' + #predictedTimeToBytesBackpressureMillis\"]\n" +
" }\n" +
"]";
List<Rule> rules = RulesFactory.createRulesFromString(testJson, "JSON", "SPEL");
assertEquals(2, rules.size());
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
});
}
@Test
public void testCreateRulesFromStringSpelYaml(){
assertDoesNotThrow(() -> {
String testYaml = "---\n" +
"name: \"Queue Size\"\n" +
"description: \"Queue size check greater than 50\"\n" +
"priority: 1\n" +
"condition: \"#predictedQueuedCount > 50\"\n" +
"actions:\n" +
" - \"System.out.println(\\\"Queue Size Over 50 is detected!\\\")\"\n" +
"---\n" +
"name: \"Time To Back Pressure\"\n" +
"description: \"Back pressure time less than 5 minutes\"\n" +
"priority: 2\n" +
"condition: \"#predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0\"\n" +
"actions:\n" +
" - \"System.out.println(\\\"Back Pressure prediction less than 5 minutes!\\\")\"";
List<Rule> rules = RulesFactory.createRulesFromString(testYaml, "YAML", "SPEL");
assertEquals(2, rules.size());
assertSame("EXPRESSION", rules.get(0).getActions().get(0).getType());
});
}
@Test
public void testFakeTypeNotSupported(){
assertThrows(Exception.class,
() -> RulesFactory.createRulesFromFile("FAKEFILE", "FAKE", "NIFI"));
}
@Test
public void testFakeFormatNotSupported(){
assertThrows(Exception.class,
() -> RulesFactory.createRulesFromFile("FAKEFILE", "JSON", "FAKE"));
}
private boolean confirmEntries(List<Rule> rules){
Rule rule1= rules.get(0);
Rule rule2 = rules.get(1);
boolean checkDiagnostic = rule1.getName().equals("Queue Size") && rule1.getDescription().equals("Queue size check greater than 50")
&& rule1.getPriority() == 1 && rule1.getCondition().equals("predictedQueuedCount > 50");
checkDiagnostic = rule2.getName().equals("Time To Back Pressure") && rule2.getDescription().equals("Back pressure time less than 5 minutes")
&& rule2.getPriority() == 2 && rule2.getCondition().equals("predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0") && checkDiagnostic;
return checkDiagnostic;
}
}

82
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/engine/TestEasyRulesEngine.java
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@ -1,82 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.rules.Action;
import org.apache.nifi.rules.Rule;
import org.apache.nifi.rules.RulesFactory;
import org.junit.jupiter.api.Test;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class TestEasyRulesEngine {
@Test
public void testCheckRules() throws Exception {
String testYamlFile = "src/test/resources/test_nifi_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "NIFI");
final EasyRulesEngine service = new EasyRulesEngine("NIFI",true,false, rules);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",311111);
Map<Rule, Boolean> checkedRules = service.checkRules(facts);
assertNotNull(checkedRules);
assertEquals(2,checkedRules.values().size());
}
@Test
public void testFireRules() throws Exception {
String testYamlFile = "src/test/resources/test_nifi_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "NIFI");
final EasyRulesEngine service = new EasyRulesEngine("NIFI",true,false, rules);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(3,actions.size());
}
@Test
public void testIgnoreErrorConditions() throws Exception {
String testYamlFile = "src/test/resources/test_nifi_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "NIFI");
final EasyRulesEngine service = new EasyRulesEngine("NIFI",false, false, rules);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressure",311111);
assertThrows(Exception.class, () -> service.fireRules(facts));
}
@Test
public void testFilterRulesMissingFacts() throws Exception {
String testYamlFile = "src/test/resources/test_nifi_rules.yml";
List<Rule> rules = RulesFactory.createRulesFromFile(testYamlFile, "YAML", "NIFI");
final EasyRulesEngine service = new EasyRulesEngine("NIFI",false, true, rules);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
Map<Rule, Boolean> checkedRules = service.checkRules(facts);
assertEquals(1, checkedRules.size());
}
}

59
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/engine/TestEasyRulesEngineProvider.java
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@ -1,59 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.rules.Action;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
public class TestEasyRulesEngineProvider {
@Test
public void testGetRulesEngine() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineProvider service = new MockEasyRulesEngineProvider();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules.yml");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "YAML");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
RulesEngine engine = service.getRulesEngine();
assertNotNull(engine);
List<Action> actions = engine.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 3);
}
private static class MockEasyRulesEngineProvider extends EasyRulesEngineProvider {
}
}

351
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/engine/TestEasyRulesEngineService.java
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@ -1,351 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.rules.Action;
import org.apache.nifi.util.TestRunner;
import org.apache.nifi.util.TestRunners;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class TestEasyRulesEngineService {
@Test
public void testYamlNiFiRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules.yml");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "YAML");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 3);
}
@Test
public void testYamlMvelRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_mvel_rules.yml");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "YAML");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "MVEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testYamlSpelRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_spel_rules.yml");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "YAML");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "SPEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testJsonNiFiRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testJsonMvelRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_mvel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "MVEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testJsonSpelRules() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_spel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "SPEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testJsonSpelRulesAsString() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
String testRules = "[\n" +
" {\n" +
" \"name\": \"Queue Size\",\n" +
" \"description\": \"Queue size check greater than 50\",\n" +
" \"priority\": 1,\n" +
" \"condition\": \"#predictedQueuedCount > 50\",\n" +
" \"actions\": [\"#predictedQueuedCount + 'is large'\"]\n" +
" },\n" +
" {\n" +
" \"name\": \"Time To Back Pressure\",\n" +
" \"description\": \"Back pressure time less than 5 minutes\",\n" +
" \"priority\": 2,\n" +
" \"condition\": \"#predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0\",\n" +
" \"actions\": [\"'System is approaching backpressure! Predicted time left: ' + #predictedTimeToBytesBackpressureMillis\"]\n" +
" }\n" +
"]";
runner.setProperty(service, EasyRulesEngineService.RULES_BODY, testRules);
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "SPEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testYamlMvelRulesAsString() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
String testYaml = "---\n" +
"name: \"Queue Size\"\n" +
"description: \"Queue size check greater than 50\"\n" +
"priority: 1\n" +
"condition: \"predictedQueuedCount > 50\"\n" +
"actions:\n" +
" - \"System.out.println(\\\"Queue Size Over 50 is detected!\\\")\"\n" +
"---\n" +
"name: \"Time To Back Pressure\"\n" +
"description: \"Back pressure time less than 5 minutes\"\n" +
"priority: 2\n" +
"condition: \"predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0\"\n" +
"actions:\n" +
" - \"System.out.println(\\\"Back Pressure prediction less than 5 minutes!\\\")\"";
runner.setProperty(service, EasyRulesEngineService.RULES_BODY, testYaml);
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "YAML");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "MVEL");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 2);
}
@Test
public void testIgnoreConditionErrorsFalseNIFI() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"false");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("fakeMetric",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
assertThrows(Exception.class, () -> service.fireRules(facts));
}
@Test
public void testIgnoreConditionErrorsTrueNIFI() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"true");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("fakeMetric",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
assertDoesNotThrow(() -> {
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 1);
});
}
@Test
public void testIgnoreConditionErrorsFalseMVEL() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_mvel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "MVEL");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"false");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("fakeMetric",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
assertThrows(Exception.class, () -> service.fireRules(facts));
}
@Test
public void testIgnoreConditionErrorsTrueMVEL() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_mvel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "MVEL");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"true");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("fakeMetric",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
assertDoesNotThrow(() -> {
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 1);
});
}
@Test
public void testIgnoreConditionErrorsFalseSPEL() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_bad_spel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "SPEL");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"false");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("fakeMetric",60);
facts.put("fakeMetric2",299999);
assertThrows(Exception.class, () -> service.fireRules(facts));
}
@Test
public void testIgnoreConditionErrorsTrueSPEL() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_bad_spel_rules.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "SPEL");
runner.setProperty(service,EasyRulesEngineService.IGNORE_CONDITION_ERRORS,"true");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
facts.put("predictedTimeToBytesBackpressureMillis",299999);
assertDoesNotThrow(() -> {
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 1);
});
}
@Test
public void testFilterRulesMissingFactsTrue() throws InitializationException, IOException {
final TestRunner runner = TestRunners.newTestRunner(TestProcessor.class);
final RulesEngineService service = new MockEasyRulesEngineService();
runner.addControllerService("easy-rules-engine-service-test",service);
runner.setProperty(service, EasyRulesEngineService.RULES_FILE_PATH, "src/test/resources/test_nifi_rules_filter.json");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_TYPE, "JSON");
runner.setProperty(service,EasyRulesEngineService.RULES_FILE_FORMAT, "NIFI");
runner.setProperty(service,EasyRulesEngineService.FILTER_RULES_MISSING_FACTS, "true");
runner.enableControllerService(service);
runner.assertValid(service);
Map<String, Object> facts = new HashMap<>();
facts.put("predictedQueuedCount",60);
List<Action> actions = service.fireRules(facts);
assertNotNull(actions);
assertEquals(actions.size(), 1);
}
private static class MockEasyRulesEngineService extends EasyRulesEngineService {
}
}

46
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/java/org/apache/nifi/rules/engine/TestProcessor.java
View File

@ -1,46 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.nifi.rules.engine;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.processor.AbstractProcessor;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.exception.ProcessException;
import java.util.ArrayList;
import java.util.List;
public class TestProcessor extends AbstractProcessor {
@Override
public void onTrigger(ProcessContext context, ProcessSession session) throws ProcessException {
}
@Override
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
List<PropertyDescriptor> properties = new ArrayList<>();
properties.add(new PropertyDescriptor.Builder()
.name("easy-rules-engine-service-test")
.description("Easy Rules Engine Service")
.identifiesControllerService(EasyRulesEngineService.class)
.required(true)
.build());
return properties;
}
}

16
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_bad_spel_rules.json
View File

@ -1,16 +0,0 @@
[
{
"name": "Queue Size",
"description": "Queue size check greater than 50",
"priority": 1,
"condition": "#predictedQueuedCount > 50",
"actions": ["#predictedQueuedCount + 'is large'"]
},
{
"name": "Time To Back Pressure",
"description": "Back pressure time less than 5 minutes",
"priority": 2,
"condition": "predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0",
"actions": ["'System is approaching backpressure! Predicted time left: ' + #predictedTimeToBytesBackpressureMillis"]
}
]

16
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_mvel_rules.json
View File

@ -1,16 +0,0 @@
[
{
"name": "Queue Size",
"description": "Queue size check greater than 50",
"priority": 1,
"condition": "predictedQueuedCount > 50",
"actions": ["System.out.println(\"Queue Size Over 50 is detected!\")"]
},
{
"name": "Time To Back Pressure",
"description": "Back pressure time less than 5 minutes",
"priority": 2,
"condition": "predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0",
"actions": ["System.out.println(\"Back Pressure prediction less than 5 minutes!\")"]
}
]

14
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_mvel_rules.yml
View File

@ -1,14 +0,0 @@
---
name: "Queue Size"
description: "Queue size check greater than 50"
priority: 1
condition: "predictedQueuedCount > 50"
actions:
- "System.out.println(\"Queue Size Over 50 is detected!\")"
---
name: "Time To Back Pressure"
description: "Back pressure time less than 5 minutes"
priority: 2
condition: "predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0"
actions:
- "System.out.println(\"Back Pressure prediction less than 5 minutes!\")"

34
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_nifi_rules.json
View File

@ -1,34 +0,0 @@
[
{
"name": "Queue Size",
"description": "Queue size check greater than 50",
"priority": 1,
"condition": "predictedQueuedCount > 50",
"actions": [
{
"type": "LOG",
"attributes": {
"logLevel": "debug",
"message": "Queue Size Over 50 is detected!"
}
}
],
"facts": ["predictedQueuedCount"]
},
{
"name": "Time To Back Pressure",
"description": "Back pressure time less than 5 minutes",
"priority": 2,
"condition": "predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0",
"actions": [
{
"type": "LOG",
"attributes": {
"logLevel": "warn",
"message": "Back Pressure prediction less than 5 minutes!"
}
}
],
"facts":["predictedTimeToBytesBackpressureMillis"]
}
]

28
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_nifi_rules.yml
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@ -1,28 +0,0 @@
---
name: "Queue Size"
description: "Queue size check greater than 50"
priority: 1
condition: "predictedQueuedCount > 50"
actions:
- type: "LOG"
attributes:
logLevel: "DEBUG"
message: "Queue Size Over 50 is detected!"
facts:
- "predictedQueuedCount"
---
name: "Time To Back Pressure"
description: "Back pressure time less than 5 minutes"
priority: 2
condition: "predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0"
actions:
- type: "LOG"
attributes:
logLevel: "INFO"
message: "Back Pressure prediction less than 5 minutes!"
- type: "ALERT"
attributes:
severity: "INFO"
message: "Back Pressure prediction less than 5 minutes!"
facts:
- "predictedTimeToBytesBackpressureMillis"

34
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_nifi_rules_filter.json
View File

@ -1,34 +0,0 @@
[
{
"name": "Queue Size",
"description": "Queue size check greater than 50",
"priority": 1,
"condition": "predictedQueuedCount > 50",
"actions": [
{
"type": "LOG",
"attributes": {
"logLevel": "debug",
"message": "Queue Size Over 50 is detected!"
}
}
],
"facts": ["predictedQueuedCount"]
},
{
"name": "Time To Back Pressure",
"description": "Back pressure time less than 5 minutes",
"priority": 2,
"condition": "predictedTimeToBytesBackpressureMillis < 300000 && predictedTimeToBytesBackpressureMillis >= 0",
"actions": [
{
"type": "LOG",
"attributes": {
"logLevel": "warn",
"message": "Back Pressure prediction less than 5 minutes!"
}
}
],
"facts":["predictedTimeToBytesBackpressureMillis"]
}
]

16
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_spel_rules.json
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@ -1,16 +0,0 @@
[
{
"name": "Queue Size",
"description": "Queue size check greater than 50",
"priority": 1,
"condition": "#predictedQueuedCount > 50",
"actions": ["#predictedQueuedCount + 'is large'"]
},
{
"name": "Time To Back Pressure",
"description": "Back pressure time less than 5 minutes",
"priority": 2,
"condition": "#predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0",
"actions": ["'System is approaching backpressure! Predicted time left: ' + #predictedTimeToBytesBackpressureMillis"]
}
]

14
nifi-nar-bundles/nifi-easyrules-bundle/nifi-easyrules-service/src/test/resources/test_spel_rules.yml
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@ -1,14 +0,0 @@
---
name: "Queue Size"
description: "Queue size check greater than 50"
priority: 1
condition: "#predictedQueuedCount > 50"
actions:
- "System.out.println(\"Queue Size Over 50 is detected!\")"
---
name: "Time To Back Pressure"
description: "Back pressure time less than 5 minutes"
priority: 2
condition: "#predictedTimeToBytesBackpressureMillis < 300000 && #predictedTimeToBytesBackpressureMillis >= 0"
actions:
- "System.out.println(\"Back Pressure prediction less than 5 minutes!\")"

40
nifi-nar-bundles/nifi-easyrules-bundle/pom.xml
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@ -1,40 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<parent>
<artifactId>nifi-nar-bundles</artifactId>
<groupId>org.apache.nifi</groupId>
<version>2.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>nifi-easyrules-bundle</artifactId>
<packaging>pom</packaging>
<modules>
<module>nifi-easyrules-service</module>
<module>nifi-easyrules-nar</module>
</modules>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.nifi</groupId>
<artifactId>nifi-easyrules-service</artifactId>
<version>2.0.0-SNAPSHOT</version>
</dependency>
</dependencies>
</dependencyManagement>
</project>

1
nifi-nar-bundles/pom.xml
View File

@ -95,7 +95,6 @@
<module>nifi-jolt-record-bundle</module>
<module>nifi-network-bundle</module>
<module>nifi-prometheus-bundle</module>
<module>nifi-easyrules-bundle</module>
<module>nifi-sql-reporting-bundle</module>
<module>nifi-rules-action-handler-bundle</module>
<module>nifi-hazelcast-bundle</module>