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INGEST: Make a few Processors callable by Painless (#32170) 

* INGEST: Make a few Processors callable by Painless
* Extracted a few stateless String processors as well as the json processor to static methods and whitelisted them in Painless
* provide whitelist from processors plugin
This commit is contained in:
Armin Braun 2018-07-20 21:10:35 +02:00 committed by GitHub
parent ac63408655
commit e21692e387
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 391 additions and 23 deletions
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6
modules/ingest-common/build.gradle
View File

@ -20,11 +20,17 @@
esplugin {
description 'Module for ingest processors that do not require additional security permissions or have large dependencies and resources'
classname 'org.elasticsearch.ingest.common.IngestCommonPlugin'
extendedPlugins = ['lang-painless']
}
dependencies {
compileOnly project(':modules:lang-painless')
compile project(':libs:grok')
}
compileJava.options.compilerArgs << "-Xlint:-unchecked,-rawtypes"
compileTestJava.options.compilerArgs << "-Xlint:-unchecked,-rawtypes"
integTestCluster {
module project(':modules:lang-painless')
}

6
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/BytesProcessor.java
View File

@ -35,9 +35,13 @@ public final class BytesProcessor extends AbstractStringProcessor {
super(processorTag, field, ignoreMissing, targetField);
}
public static long apply(String value) {
return ByteSizeValue.parseBytesSizeValue(value, null, "Ingest Field").getBytes();
}
@Override
protected Long process(String value) {
return ByteSizeValue.parseBytesSizeValue(value, null, getField()).getBytes();
return apply(value);
}
@Override

36
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/JsonProcessor.java
View File

@ -67,10 +67,8 @@ public final class JsonProcessor extends AbstractProcessor {
return addToRoot;
}
@Override
public void execute(IngestDocument document) throws Exception {
Object fieldValue = document.getFieldValue(field, Object.class);
BytesReference bytesRef = (fieldValue == null) ? new BytesArray("null") : new BytesArray(fieldValue.toString());
public static Object apply(Object fieldValue) {
BytesReference bytesRef = fieldValue == null ? new BytesArray("null") : new BytesArray(fieldValue.toString());
try (InputStream stream = bytesRef.streamInput();
XContentParser parser = JsonXContent.jsonXContent
.createParser(NamedXContentRegistry.EMPTY, DeprecationHandler.THROW_UNSUPPORTED_OPERATION, stream)) {
@ -91,20 +89,32 @@ public final class JsonProcessor extends AbstractProcessor {
} else if (token == XContentParser.Token.VALUE_EMBEDDED_OBJECT) {
throw new IllegalArgumentException("cannot read binary value");
}
if (addToRoot && (value instanceof Map)) {
for (Map.Entry<String, Object> entry : ((Map<String, Object>) value).entrySet()) {
document.setFieldValue(entry.getKey(), entry.getValue());
}
} else if (addToRoot) {
throw new IllegalArgumentException("cannot add non-map fields to root of document");
} else {
document.setFieldValue(targetField, value);
}
return value;
} catch (IOException e) {
throw new IllegalArgumentException(e);
}
}
public static void apply(Map<String, Object> ctx, String fieldName) {
Object value = apply(ctx.get(fieldName));
if (value instanceof Map) {
@SuppressWarnings("unchecked")
Map<String, Object> map = (Map<String, Object>) value;
ctx.putAll(map);
} else {
throw new IllegalArgumentException("cannot add non-map fields to root of document");
}
}
@Override
public void execute(IngestDocument document) throws Exception {
if (addToRoot) {
apply(document.getSourceAndMetadata(), field);
} else {
document.setFieldValue(targetField, apply(document.getFieldValue(field, Object.class)));
}
}
@Override
public String getType() {
return TYPE;

6
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/LowercaseProcessor.java
View File

@ -35,9 +35,13 @@ public final class LowercaseProcessor extends AbstractStringProcessor {
super(processorTag, field, ignoreMissing, targetField);
}
public static String apply(String value) {
return value.toLowerCase(Locale.ROOT);
}
@Override
protected String process(String value) {
return value.toLowerCase(Locale.ROOT);
return apply(value);
}
@Override

49
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/Processors.java Normal file
View File

@ -0,0 +1,49 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.ingest.common;
import java.util.Map;
public final class Processors {
public static long bytes(String value) {
return BytesProcessor.apply(value);
}
public static String lowercase(String value) {
return LowercaseProcessor.apply(value);
}
public static String uppercase(String value) {
return UppercaseProcessor.apply(value);
}
public static Object json(Object fieldValue) {
return JsonProcessor.apply(fieldValue);
}
public static void json(Map<String, Object> ctx, String field) {
JsonProcessor.apply(ctx, field);
}
public static String urlDecode(String value) {
return URLDecodeProcessor.apply(value);
}
}

41
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/ProcessorsWhitelistExtension.java Normal file
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@ -0,0 +1,41 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.ingest.common;
import org.elasticsearch.painless.spi.PainlessExtension;
import org.elasticsearch.painless.spi.Whitelist;
import org.elasticsearch.painless.spi.WhitelistLoader;
import org.elasticsearch.script.IngestScript;
import org.elasticsearch.script.ScriptContext;
import java.util.Collections;
import java.util.List;
import java.util.Map;
public class ProcessorsWhitelistExtension implements PainlessExtension {
private static final Whitelist WHITELIST =
WhitelistLoader.loadFromResourceFiles(ProcessorsWhitelistExtension.class, "processors_whitelist.txt");
@Override
public Map<ScriptContext<?>, List<Whitelist>> getContextWhitelists() {
return Collections.singletonMap(IngestScript.CONTEXT, Collections.singletonList(WHITELIST));
}
}

10
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/URLDecodeProcessor.java
View File

@ -34,15 +34,19 @@ public final class URLDecodeProcessor extends AbstractStringProcessor {
super(processorTag, field, ignoreMissing, targetField);
}
@Override
protected String process(String value) {
public static String apply(String value) {
try {
return URLDecoder.decode(value, "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new IllegalArgumentException("could not URL-decode field[" + getField() + "]", e);
throw new IllegalArgumentException("Could not URL-decode value.", e);
}
}
@Override
protected String process(String value) {
return apply(value);
}
@Override
public String getType() {
return TYPE;

6
modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/UppercaseProcessor.java
View File

@ -34,9 +34,13 @@ public final class UppercaseProcessor extends AbstractStringProcessor {
super(processorTag, field, ignoreMissing, targetField);
}
public static String apply(String value) {
return value.toUpperCase(Locale.ROOT);
}
@Override
protected String process(String value) {
return value.toUpperCase(Locale.ROOT);
return apply(value);
}
@Override

1
modules/ingest-common/src/main/resources/META-INF/services/org.elasticsearch.painless.spi.PainlessExtension Normal file
View File

@ -0,0 +1 @@
org.elasticsearch.ingest.common.ProcessorsWhitelistExtension

29
modules/ingest-common/src/main/resources/org/elasticsearch/ingest/common/processors_whitelist.txt Normal file
View File

@ -0,0 +1,29 @@
#
# Licensed to Elasticsearch under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch 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.
#
# This file contains a whitelist of static processor methods that can be accessed from painless
class org.elasticsearch.ingest.common.Processors {
long bytes(String)
String lowercase(String)
String uppercase(String)
Object json(Object)
void json(Map, String)
String urlDecode(String)
}

4
modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/BytesProcessorTests.java
View File

@ -63,7 +63,7 @@ public class BytesProcessorTests extends AbstractStringProcessorTestCase {
Processor processor = newProcessor(fieldName, randomBoolean(), fieldName);
ElasticsearchException exception = expectThrows(ElasticsearchException.class, () -> processor.execute(ingestDocument));
assertThat(exception.getMessage(),
CoreMatchers.equalTo("failed to parse setting [" + fieldName + "] with value [8912pb] as a size in bytes"));
CoreMatchers.equalTo("failed to parse setting [Ingest Field] with value [8912pb] as a size in bytes"));
assertThat(exception.getCause().getMessage(),
CoreMatchers.containsString("Values greater than 9223372036854775807 bytes are not supported"));
}
@ -93,6 +93,6 @@ public class BytesProcessorTests extends AbstractStringProcessorTestCase {
processor.execute(ingestDocument);
assertThat(ingestDocument.getFieldValue(fieldName, expectedResultType()), equalTo(1126L));
assertWarnings("Fractional bytes values are deprecated. Use non-fractional bytes values instead: [1.1kb] found for setting " +
"[" + fieldName + "]");
"[Ingest Field]");
}
}

216
modules/ingest-common/src/test/resources/rest-api-spec/test/ingest/190_script_processor.yml Normal file
View File

@ -0,0 +1,216 @@
---
teardown:
- do:
ingest.delete_pipeline:
id: "my_pipeline"
ignore: 404
---
"Test invoke bytes processor":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "ctx.target_field = Processors.bytes(ctx.source_field)"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "1kb"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "1kb" }
- match: { _source.target_field: 1024 }
---
"Test invoke lowercase processor":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "ctx.target_field = Processors.lowercase(ctx.source_field)"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "FooBar"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "FooBar" }
- match: { _source.target_field: "foobar" }
---
"Test invoke uppercase processor":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "ctx.target_field = Processors.uppercase(ctx.source_field)"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "FooBar"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "FooBar" }
- match: { _source.target_field: "FOOBAR" }
---
"Test invoke json processor, assign to field":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "ctx.target_field = Processors.json(ctx.source_field)"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "{\"foo\":\"bar\"}"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "{\"foo\":\"bar\"}" }
- match: { _source.target_field.foo: "bar" }
---
"Test invoke json processor, assign to root":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "Processors.json(ctx, 'source_field')"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "{\"foo\":\"bar\"}"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "{\"foo\":\"bar\"}" }
- match: { _source.foo: "bar" }
---
"Test invoke urlDecode processor":
- do:
ingest.put_pipeline:
id: "my_pipeline"
body: >
{
"description": "_description",
"processors": [
{
"script" : {
"lang": "painless",
"source" : "ctx.target_field = Processors.urlDecode(ctx.source_field)"
}
}
]
}
- match: { acknowledged: true }
- do:
index:
index: test
type: test
id: 1
pipeline: "my_pipeline"
body: {source_field: "foo%20bar"}
- do:
get:
index: test
type: test
id: 1
- match: { _source.source_field: "foo%20bar" }
- match: { _source.target_field: "foo bar" }