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https://issues.apache.org/jira/browse/NIFI-4325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16195779#comment-16195779
]
ASF GitHub Bot commented on NIFI-4325:
--------------------------------------
Github user mattyb149 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2113#discussion_r143334704
--- Diff:
nifi-nar-bundles/nifi-elasticsearch-bundle/nifi-elasticsearch-5-processors/src/main/java/org/apache/nifi/processors/elasticsearch/JsonQueryElasticsearch5.java
---
@@ -0,0 +1,459 @@
+/*
+ * 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.elasticsearch;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpHost;
+import org.apache.http.auth.AuthScope;
+import org.apache.http.auth.UsernamePasswordCredentials;
+import org.apache.http.client.CredentialsProvider;
+import org.apache.http.client.config.RequestConfig;
+import org.apache.http.entity.ContentType;
+import org.apache.http.impl.client.BasicCredentialsProvider;
+import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
+import org.apache.http.nio.entity.NStringEntity;
+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.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnUnscheduled;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+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.io.OutputStreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.ssl.SSLContextService;
+import org.codehaus.jackson.map.ObjectMapper;
+import org.elasticsearch.client.Response;
+import org.elasticsearch.client.RestClient;
+import org.elasticsearch.client.RestClientBuilder;
+
+import javax.net.ssl.KeyManagerFactory;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManagerFactory;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URL;
+import java.security.KeyStore;
+import java.security.SecureRandom;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@EventDriven
+@SupportsBatching
+@Tags({"elasticsearch", "elasticsearch 5", "fetch", "read", "get"})
+@CapabilityDescription("Retrieves a document from Elasticsearch using the
specified connection properties and the "
+ + "identifier of the document to retrieve. If the cluster has been
configured for authorization and/or secure "
+ + "transport (SSL/TLS), and the X-Pack plugin is available, secure
connections can be made. This processor "
+ + "supports Elasticsearch 5.x clusters.")
+public class JsonQueryElasticsearch5 extends AbstractProcessor {
+
+ private RestClient client;
+
+ public static final Relationship REL_SUCCESS = new
Relationship.Builder().name("success")
+ .description("All original flowfiles that don't cause an error
to occur go to this relationship").build();
+
+ public static final Relationship REL_FAILURE = new
Relationship.Builder().name("failure")
+ .description("All FlowFiles that cannot be read from
Elasticsearch are routed to this relationship").build();
+
+ public static final Relationship REL_HITS = new
Relationship.Builder().name("hits")
+ .description("Search hits are routed to this relationship.")
+ .build();
+
+ public static final Relationship REL_AGGREGATIONS = new
Relationship.Builder().name("aggregations")
+ .description("Aggregations are routed to this relationship.")
+ .build();
+
+ public static final PropertyDescriptor INDEX = new
PropertyDescriptor.Builder()
+ .name("el5-fetch-index")
+ .displayName("Index")
+ .description("The name of the index to read from")
+ .required(true)
+ .expressionLanguageSupported(true)
+ .addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+ .build();
+
+ public static final PropertyDescriptor TYPE = new
PropertyDescriptor.Builder()
+ .name("el5-type")
+ .displayName("Type")
+ .description("The type of this document (used by Elasticsearch
for indexing and searching)")
+ .defaultValue("")
+ .required(false)
+ .expressionLanguageSupported(true)
+ .addValidator(Validator.VALID)
+ .build();
+
+ public static final PropertyDescriptor QUERY = new
PropertyDescriptor.Builder()
+ .name("el5-query")
+ .displayName("Query")
+ .description("A query in JSON syntax, not Lucene syntax.")
+ .required(true)
+ .expressionLanguageSupported(true)
+ .addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+ .build();
+
+ public static final PropertyDescriptor HTTP_HOSTS = new
PropertyDescriptor.Builder()
+ .name("el5-http-hosts")
+ .displayName("HTTP Hosts")
+ .description("A comma-separated list of HTTP hosts that host
ElasticSearch query nodes.")
+ .required(true)
+ .expressionLanguageSupported(false)
--- End diff --
I think other processors have allowed EL in the password, it's not very
secure without encrypted properties/registry entries, but that might be
acceptable for some use cases
> Create a new ElasticSearch processor that supports the JSON DSL
> ---------------------------------------------------------------
>
> Key: NIFI-4325
> URL: https://issues.apache.org/jira/browse/NIFI-4325
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Mike Thomsen
> Priority: Minor
>
> The existing ElasticSearch processors use the Lucene-style syntax for
> querying, not the JSON DSL. A new processor is needed that can take a full
> JSON query and execute it. It should also support aggregation queries in this
> syntax. A user needs to be able to take a query as-is from Kibana and drop it
> into NiFi and have it just run.
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