diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/pom.xml b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/pom.xml
index 75a6ef3be3..0f9d6e96ca 100644
--- a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/pom.xml
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/pom.xml
@@ -56,6 +56,11 @@
slf4j-simple
test
+
+ com.google.code.gson
+ gson
+ 2.7
+
junit
junit
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/AbstractInfluxDBProcessor.java b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/AbstractInfluxDBProcessor.java
index cedde21d28..40dffa9451 100644
--- a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/AbstractInfluxDBProcessor.java
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/AbstractInfluxDBProcessor.java
@@ -15,31 +15,27 @@
* limitations under the License.
*/
package org.apache.nifi.processors.influxdb;
-
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
-
import org.apache.commons.lang3.StringUtils;
import org.apache.nifi.annotation.lifecycle.OnScheduled;
import org.apache.nifi.annotation.lifecycle.OnStopped;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.expression.ExpressionLanguageScope;
import org.apache.nifi.processor.AbstractProcessor;
-import org.apache.nifi.processor.DataUnit;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.util.StandardValidators;
import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
-
import okhttp3.OkHttpClient;
import okhttp3.OkHttpClient.Builder;
/**
* Abstract base class for InfluxDB processors
*/
-abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
+public abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
- protected static final PropertyDescriptor CHARSET = new PropertyDescriptor.Builder()
+ public static final PropertyDescriptor CHARSET = new PropertyDescriptor.Builder()
.name("influxdb-charset")
.displayName("Character Set")
.description("Specifies the character set of the document data.")
@@ -96,7 +92,7 @@ abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
.sensitive(true)
.build();
- protected static final PropertyDescriptor MAX_RECORDS_SIZE = new PropertyDescriptor.Builder()
+ public static final PropertyDescriptor MAX_RECORDS_SIZE = new PropertyDescriptor.Builder()
.name("influxdb-max-records-size")
.displayName("Max size of records")
.description("Maximum size of records allowed to be posted in one batch")
@@ -107,7 +103,6 @@ abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
.build();
public static final String INFLUX_DB_ERROR_MESSAGE = "influxdb.error.message";
-
protected AtomicReference influxDB = new AtomicReference<>();
protected long maxRecordsSize;
@@ -121,12 +116,11 @@ abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
String password = context.getProperty(PASSWORD).evaluateAttributeExpressions().getValue();
long connectionTimeout = context.getProperty(INFLUX_DB_CONNECTION_TIMEOUT).asTimePeriod(TimeUnit.SECONDS);
String influxDbUrl = context.getProperty(INFLUX_DB_URL).evaluateAttributeExpressions().getValue();
-
try {
influxDB.set(makeConnection(username, password, influxDbUrl, connectionTimeout));
} catch(Exception e) {
getLogger().error("Error while getting connection {}", new Object[] { e.getLocalizedMessage() },e);
- throw new RuntimeException("Error while getting connection" + e.getLocalizedMessage(),e);
+ throw new RuntimeException("Error while getting connection " + e.getLocalizedMessage(),e);
}
getLogger().info("InfluxDB connection created for host {}",
new Object[] {influxDbUrl});
@@ -136,7 +130,6 @@ abstract class AbstractInfluxDBProcessor extends AbstractProcessor {
@OnScheduled
public void onScheduled(final ProcessContext context) {
- maxRecordsSize = context.getProperty(MAX_RECORDS_SIZE).evaluateAttributeExpressions().asDataSize(DataUnit.B).longValue();
}
protected InfluxDB makeConnection(String username, String password, String influxDbUrl, long connectionTimeout) {
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/ExecuteInfluxDBQuery.java b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/ExecuteInfluxDBQuery.java
new file mode 100644
index 0000000000..ddb09724ad
--- /dev/null
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/ExecuteInfluxDBQuery.java
@@ -0,0 +1,262 @@
+/*
+ * 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.processors.influxdb;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.SupportsBatching;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.annotation.lifecycle.OnStopped;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.influxdb.dto.Query;
+import org.influxdb.dto.QueryResult;
+import com.google.gson.Gson;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.net.SocketTimeoutException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+@InputRequirement(InputRequirement.Requirement.INPUT_ALLOWED)
+@EventDriven
+@SupportsBatching
+@Tags({"influxdb", "measurement", "get", "read", "query", "timeseries"})
+@CapabilityDescription("Processor to execute InfluxDB query from the content of a FlowFile (preferred) or a scheduled query. Please check details of the supported queries in InfluxDB documentation (https://www.influxdb.com/).")
+@WritesAttributes({
+ @WritesAttribute(attribute = AbstractInfluxDBProcessor.INFLUX_DB_ERROR_MESSAGE, description = "InfluxDB error message"),
+ @WritesAttribute(attribute = ExecuteInfluxDBQuery.INFLUX_DB_EXECUTED_QUERY, description = "InfluxDB executed query"),
+ })
+public class ExecuteInfluxDBQuery extends AbstractInfluxDBProcessor {
+
+ public static final String INFLUX_DB_EXECUTED_QUERY = "influxdb.executed.query";
+
+ public static final PropertyDescriptor INFLUX_DB_QUERY_RESULT_TIMEUNIT = new PropertyDescriptor.Builder()
+ .name("influxdb-query-result-time-unit")
+ .displayName("Query Result Time Units")
+ .description("The time unit of query results from the InfluxDB")
+ .defaultValue(TimeUnit.NANOSECONDS.name())
+ .required(true)
+ .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .allowableValues(Arrays.stream(TimeUnit.values()).map( v -> v.name()).collect(Collectors.toSet()))
+ .sensitive(false)
+ .build();
+
+ public static final PropertyDescriptor INFLUX_DB_QUERY = new PropertyDescriptor.Builder()
+ .name("influxdb-query")
+ .displayName("InfluxDB Query")
+ .description("The InfluxDB query to execute. "
+ + "Note: If there are incoming connections, then the query is created from incoming FlowFile's content otherwise"
+ + " it is created from this property.")
+ .required(false)
+ .addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+ .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .build();
+
+ static final Relationship REL_SUCCESS = new Relationship.Builder().name("success")
+ .description("Successful InfluxDB queries are routed to this relationship").build();
+
+ static final Relationship REL_FAILURE = new Relationship.Builder().name("failure")
+ .description("Falied InfluxDB queries are routed to this relationship").build();
+
+ static final Relationship REL_RETRY = new Relationship.Builder().name("retry")
+ .description("Failed queries that are retryable exception are routed to this relationship").build();
+
+ private static final Set relationships;
+ private static final List propertyDescriptors;
+ protected Gson gson = new Gson();
+
+ static {
+ final Set tempRelationships = new HashSet<>();
+ tempRelationships.add(REL_SUCCESS);
+ tempRelationships.add(REL_FAILURE);
+ tempRelationships.add(REL_RETRY);
+ relationships = Collections.unmodifiableSet(tempRelationships);
+ final List tempDescriptors = new ArrayList<>();
+ tempDescriptors.add(DB_NAME);
+ tempDescriptors.add(INFLUX_DB_URL);
+ tempDescriptors.add(INFLUX_DB_CONNECTION_TIMEOUT);
+ tempDescriptors.add(INFLUX_DB_QUERY_RESULT_TIMEUNIT);
+ tempDescriptors.add(INFLUX_DB_QUERY);
+ tempDescriptors.add(USERNAME);
+ tempDescriptors.add(PASSWORD);
+ tempDescriptors.add(CHARSET);
+ propertyDescriptors = Collections.unmodifiableList(tempDescriptors);
+ }
+
+ @Override
+ public Set getRelationships() {
+ return relationships;
+ }
+
+ @Override
+ public final List getSupportedPropertyDescriptors() {
+ return propertyDescriptors;
+ }
+
+ @OnScheduled
+ public void onScheduled(final ProcessContext context) {
+ super.onScheduled(context);
+ // Either input connection or scheduled query is required
+ if ( ! context.getProperty(INFLUX_DB_QUERY).isSet()
+ && ! context.hasIncomingConnection() ) {
+ String error = "The InfluxDB Query processor requires input connection or scheduled InfluxDB query";
+ getLogger().error(error);
+ throw new ProcessException(error);
+ }
+ }
+
+ @Override
+ public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
+
+ String query = null;
+ String database = null;
+ TimeUnit queryResultTimeunit = null;
+ Charset charset = null;
+ FlowFile outgoingFlowFile = null;
+
+ // If there are incoming connections, prepare query params from flow file
+ if ( context.hasIncomingConnection() ) {
+ FlowFile incomingFlowFile = session.get();
+
+ if ( incomingFlowFile == null && context.hasNonLoopConnection() ) {
+ return;
+ }
+
+ charset = Charset.forName(context.getProperty(CHARSET).evaluateAttributeExpressions(incomingFlowFile).getValue());
+ if ( incomingFlowFile.getSize() == 0 ) {
+ if ( context.getProperty(INFLUX_DB_QUERY).isSet() ) {
+ query = context.getProperty(INFLUX_DB_QUERY).evaluateAttributeExpressions(incomingFlowFile).getValue();
+ } else {
+ String message = "FlowFile query is empty and no scheduled query is set";
+ getLogger().error(message);
+ incomingFlowFile = session.putAttribute(incomingFlowFile, INFLUX_DB_ERROR_MESSAGE, message);
+ session.transfer(incomingFlowFile, REL_FAILURE);
+ return;
+ }
+ } else {
+
+ try {
+ query = getQuery(session, charset, incomingFlowFile);
+ } catch(IOException ioe) {
+ getLogger().error("Exception while reading from FlowFile " + ioe.getLocalizedMessage(), ioe);
+ throw new ProcessException(ioe);
+ }
+ }
+ outgoingFlowFile = incomingFlowFile;
+
+ } else {
+ outgoingFlowFile = session.create();
+ charset = Charset.forName(context.getProperty(CHARSET).evaluateAttributeExpressions(outgoingFlowFile).getValue());
+ query = context.getProperty(INFLUX_DB_QUERY).evaluateAttributeExpressions(outgoingFlowFile).getValue();
+ }
+
+ database = context.getProperty(DB_NAME).evaluateAttributeExpressions(outgoingFlowFile).getValue();
+ queryResultTimeunit = TimeUnit.valueOf(context.getProperty(INFLUX_DB_QUERY_RESULT_TIMEUNIT).evaluateAttributeExpressions(outgoingFlowFile).getValue());
+
+ try {
+ long startTimeMillis = System.currentTimeMillis();
+ QueryResult result = executeQuery(context, database, query, queryResultTimeunit);
+
+ String json = gson.toJson(result);
+
+ if ( getLogger().isDebugEnabled() ) {
+ getLogger().debug("Query result {} ", new Object[] {result});
+ }
+
+ ByteArrayInputStream bais = new ByteArrayInputStream(json.getBytes(charset));
+ session.importFrom(bais, outgoingFlowFile);
+ bais.close();
+
+ final long endTimeMillis = System.currentTimeMillis();
+
+ if ( ! result.hasError() ) {
+ outgoingFlowFile = session.putAttribute(outgoingFlowFile, INFLUX_DB_EXECUTED_QUERY, String.valueOf(query));
+ session.getProvenanceReporter().send(outgoingFlowFile, makeProvenanceUrl(context, database),
+ (endTimeMillis - startTimeMillis));
+ session.transfer(outgoingFlowFile, REL_SUCCESS);
+ } else {
+ outgoingFlowFile = populateErrorAttributes(session, outgoingFlowFile, query, result.getError());
+ session.transfer(outgoingFlowFile, REL_FAILURE);
+ }
+
+ } catch (Exception exception) {
+ outgoingFlowFile = populateErrorAttributes(session, outgoingFlowFile, query, exception.getMessage());
+ if ( exception.getCause() instanceof SocketTimeoutException ) {
+ getLogger().error("Failed to read from InfluxDB due SocketTimeoutException to {} and retrying",
+ new Object[]{exception.getCause().getLocalizedMessage()}, exception.getCause());
+ session.transfer(outgoingFlowFile, REL_RETRY);
+ } else {
+ getLogger().error("Failed to read from InfluxDB due to {}",
+ new Object[]{exception.getLocalizedMessage()}, exception);
+ session.transfer(outgoingFlowFile, REL_FAILURE);
+ }
+ context.yield();
+ }
+ }
+
+ protected String getQuery(final ProcessSession session, Charset charset, FlowFile incomingFlowFile)
+ throws IOException {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ session.exportTo(incomingFlowFile, baos);
+ baos.close();
+ return new String(baos.toByteArray(), charset);
+ }
+
+ protected String makeProvenanceUrl(final ProcessContext context, String database) {
+ return new StringBuilder("influxdb://")
+ .append(context.getProperty(INFLUX_DB_URL).evaluateAttributeExpressions().getValue()).append("/")
+ .append(database).toString();
+ }
+
+ protected QueryResult executeQuery(final ProcessContext context, String database, String query, TimeUnit timeunit) {
+ return getInfluxDB(context).query(new Query(query, database),timeunit);
+ }
+
+ protected FlowFile populateErrorAttributes(final ProcessSession session, FlowFile flowFile, String query,
+ String message) {
+ Map attributes = new HashMap<>();
+ attributes.put(INFLUX_DB_ERROR_MESSAGE, String.valueOf(message));
+ attributes.put(INFLUX_DB_EXECUTED_QUERY, String.valueOf(query));
+ flowFile = session.putAllAttributes(flowFile, attributes);
+ return flowFile;
+ }
+
+ @OnStopped
+ public void close() {
+ super.close();
+ }
+}
\ No newline at end of file
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/PutInfluxDB.java b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/PutInfluxDB.java
index f507768b4a..cbce66703d 100644
--- a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/PutInfluxDB.java
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/java/org/apache/nifi/processors/influxdb/PutInfluxDB.java
@@ -29,6 +29,7 @@ import org.apache.nifi.components.AllowableValue;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.expression.ExpressionLanguageScope;
import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.DataUnit;
import org.apache.nifi.processor.ProcessContext;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.Relationship;
@@ -131,6 +132,7 @@ public class PutInfluxDB extends AbstractInfluxDBProcessor {
@OnScheduled
public void onScheduled(final ProcessContext context) {
super.onScheduled(context);
+ maxRecordsSize = context.getProperty(MAX_RECORDS_SIZE).evaluateAttributeExpressions().asDataSize(DataUnit.B).longValue();
}
@Override
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/resources/META-INF/services/org.apache.nifi.processor.Processor b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/resources/META-INF/services/org.apache.nifi.processor.Processor
index 008a00ac57..919b7b95d8 100644
--- a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/resources/META-INF/services/org.apache.nifi.processor.Processor
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/main/resources/META-INF/services/org.apache.nifi.processor.Processor
@@ -13,3 +13,4 @@
# See the License for the specific language governing permissions and
# limitations under the License.
org.apache.nifi.processors.influxdb.PutInfluxDB
+org.apache.nifi.processors.influxdb.ExecuteInfluxDBQuery
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/AbstractITInfluxDB.java b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/AbstractITInfluxDB.java
new file mode 100644
index 0000000000..48ec1495dd
--- /dev/null
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/AbstractITInfluxDB.java
@@ -0,0 +1,83 @@
+/*
+ * 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.processors.influxdb;
+import org.apache.nifi.util.TestRunner;
+import org.influxdb.InfluxDB;
+import org.influxdb.InfluxDBFactory;
+import org.influxdb.dto.Query;
+import org.influxdb.dto.QueryResult;
+import org.junit.After;
+
+/**
+ * Base integration test class for InfluxDB processors
+ */
+public class AbstractITInfluxDB {
+ protected TestRunner runner;
+ protected InfluxDB influxDB;
+ protected String dbName = "test";
+ protected String dbUrl = "http://localhost:8086";
+ protected String user = "admin";
+ protected String password = "admin";
+ protected static final String DEFAULT_RETENTION_POLICY = "autogen";
+
+ protected void initInfluxDB() throws InterruptedException, Exception {
+ influxDB = InfluxDBFactory.connect(dbUrl,user,password);
+ influxDB.createDatabase(dbName);
+ int max = 10;
+ while (!influxDB.databaseExists(dbName) && (max-- < 0)) {
+ Thread.sleep(5);
+ }
+ if ( ! influxDB.databaseExists(dbName) ) {
+ throw new Exception("unable to create database " + dbName);
+ }
+ }
+
+ protected void cleanUpDatabase() throws InterruptedException {
+ if ( influxDB.databaseExists(dbName) ) {
+ QueryResult result = influxDB.query(new Query("DROP measurement water", dbName));
+ checkError(result);
+ result = influxDB.query(new Query("DROP measurement testm", dbName));
+ checkError(result);
+ result = influxDB.query(new Query("DROP database " + dbName, dbName));
+ Thread.sleep(1000);
+ }
+ }
+
+ protected void checkError(QueryResult result) {
+ if ( result.hasError() ) {
+ throw new IllegalStateException("Error while dropping measurements " + result.getError());
+ }
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ runner = null;
+ if ( influxDB != null ) {
+ cleanUpDatabase();
+ influxDB.close();
+ }
+ }
+
+ protected void initializeRunner() {
+ runner.setProperty(ExecuteInfluxDBQuery.DB_NAME, dbName);
+ runner.setProperty(ExecuteInfluxDBQuery.USERNAME, user);
+ runner.setProperty(ExecuteInfluxDBQuery.PASSWORD, password);
+ runner.setProperty(ExecuteInfluxDBQuery.INFLUX_DB_URL, dbUrl);
+ runner.setProperty(ExecuteInfluxDBQuery.CHARSET, "UTF-8");
+ runner.assertValid();
+ }
+}
\ No newline at end of file
diff --git a/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/ITExecuteInfluxDBQuery.java b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/ITExecuteInfluxDBQuery.java
new file mode 100644
index 0000000000..0a0844fc73
--- /dev/null
+++ b/nifi-nar-bundles/nifi-influxdb-bundle/nifi-influxdb-processors/src/test/java/org/apache/nifi/processors/influxdb/ITExecuteInfluxDBQuery.java
@@ -0,0 +1,329 @@
+/*
+ * 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.processors.influxdb;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Assert;
+
+import java.io.StringReader;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.TestRunners;
+import org.influxdb.InfluxDB;
+import org.influxdb.dto.QueryResult;
+import org.influxdb.dto.QueryResult.Series;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.google.gson.Gson;
+
+/**
+ * Integration test for executing InfluxDB queries. Please ensure that the InfluxDB is running
+ * on local host with default port and has database test with table test. Please set user
+ * and password if applicable before running the integration tests.
+ */
+public class ITExecuteInfluxDBQuery extends AbstractITInfluxDB {
+
+ protected Gson gson = new Gson();
+ @Before
+ public void setUp() throws Exception {
+ initInfluxDB();
+ runner = TestRunners.newTestRunner(ExecuteInfluxDBQuery.class);
+ initializeRunner();
+ runner.setVariable("influxDBUrl", "http://localhost:8086");
+ runner.setProperty(PutInfluxDB.INFLUX_DB_URL, "${influxDBUrl}");
+ }
+
+ @Test
+ public void testValidScheduleQueryWithNoIncoming() {
+ String message = "water,country=US,city=newark rain=1,humidity=0.6 1501002274856668652";
+ influxDB.write(dbName, DEFAULT_RETENTION_POLICY, InfluxDB.ConsistencyLevel.ONE, message);
+
+ String query = "select * from water";
+ runner.setProperty(ExecuteInfluxDBQuery.INFLUX_DB_QUERY, query);
+
+ runner.setIncomingConnection(false);
+ runner.run(1,true,true);
+ runner.assertAllFlowFilesTransferred(ExecuteInfluxDBQuery.REL_SUCCESS, 1);
+ List flowFiles = runner.getFlowFilesForRelationship(ExecuteInfluxDBQuery.REL_SUCCESS);
+ assertEquals("Value should be equal", 1, flowFiles.size());
+ assertNull("Value should be null", flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_ERROR_MESSAGE));
+ assertEquals("Value should be equal",query, flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_EXECUTED_QUERY));
+
+ QueryResult queryResult = gson.fromJson(new StringReader(new String(flowFiles.get(0).toByteArray())), QueryResult.class);
+ Series series = queryResult.getResults().get(0).getSeries().get(0);
+ validateSeries(series.getName(), series.getColumns(), series.getValues().get(0),"newark",1.0);
+ }
+
+ @Test
+ public void testValidSinglePoint() {
+ String message = "water,country=US,city=newark rain=1,humidity=0.6 1501002274856668652";
+ influxDB.write(dbName, DEFAULT_RETENTION_POLICY, InfluxDB.ConsistencyLevel.ONE, message);
+ String query = "select * from water";
+ byte [] bytes = query.getBytes();
+ runner.enqueue(bytes);
+ runner.run(1,true,true);
+ runner.assertAllFlowFilesTransferred(ExecuteInfluxDBQuery.REL_SUCCESS, 1);
+ List flowFiles = runner.getFlowFilesForRelationship(ExecuteInfluxDBQuery.REL_SUCCESS);
+ assertEquals("Value should be equal", 1, flowFiles.size());
+ assertNull("Value should be null", flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_ERROR_MESSAGE));
+ assertEquals("Value should be equal",query, flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_EXECUTED_QUERY));
+
+ QueryResult queryResult = gson.fromJson(new StringReader(new String(flowFiles.get(0).toByteArray())), QueryResult.class);
+ Series series = queryResult.getResults().get(0).getSeries().get(0);
+ validateSeries(series.getName(), series.getColumns(), series.getValues().get(0),"newark",1.0);
+ }
+
+ @Test
+ public void testShowDatabases() {
+ String query = "show databases";
+ byte [] bytes = query.getBytes();
+ runner.enqueue(bytes);
+ runner.run(1,true,true);
+ runner.assertAllFlowFilesTransferred(ExecuteInfluxDBQuery.REL_SUCCESS, 1);
+ List flowFiles = runner.getFlowFilesForRelationship(ExecuteInfluxDBQuery.REL_SUCCESS);
+ assertEquals("Value should be equal", 1, flowFiles.size());
+ assertNull("Value should be null", flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_ERROR_MESSAGE));
+ assertEquals("Value should be equal",query, flowFiles.get(0).getAttribute(ExecuteInfluxDBQuery.INFLUX_DB_EXECUTED_QUERY));
+
+ String result = new String(flowFiles.get(0).toByteArray());
+ QueryResult queryResult = gson.fromJson(new StringReader(result), QueryResult.class);
+ Series series = queryResult.getResults().get(0).getSeries().get(0);
+ assertEquals("series name should be same", "databases", series.getName());
+ assertEquals("series column should be same", "name", series.getColumns().get(0));
+ boolean internal = series.getValues().get(0).stream().anyMatch(o -> o.equals("_internal"));
+ Assert.assertTrue("content should contain _internal " + queryResult, internal);
+ boolean test = series.getValues().stream().flatMap(i -> ((List