mirror of https://github.com/apache/nifi.git
NIFI-1763: Initial implementation of ConfluentSchemaRegistry.
NIFI-1763: Fixed bug where the Confluent Schema Registry Schema Access Writer was not being created Signed-off-by: Yolanda M. Davis <ymdavis@apache.org> This closes #1938
This commit is contained in:
Mark Payne
Yolanda M. Davis
parent
a3b72f1bb7
commit
3906d4e1d2
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@ -186,6 +186,11 @@
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<artifactId>nifi-kafka-0-10-nar</artifactId>
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<artifactId>nifi-kafka-0-10-nar</artifactId>
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<type>nar</type>
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<type>nar</type>
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</dependency>
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</dependency>
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<dependency>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-confluent-platform-nar</artifactId>
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<type>nar</type>
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</dependency>
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<dependency>
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<dependency>
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<groupId>org.apache.nifi</groupId>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-http-context-map-nar</artifactId>
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<artifactId>nifi-http-context-map-nar</artifactId>
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@ -0,0 +1,36 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2016 Hortoworks, Inc. All rights reserved.
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||||||
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Hortonworks, Inc. licenses this file to you under the Apache License,
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|
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
|
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|
Unless required by applicable law or agreed to in writing, software distributed
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|
under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
|
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|
OR CONDITIONS OF ANY KIND, either express or implied. See the License for
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|
the specific language governing permissions and limitations under the License.
|
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|
See the associated NOTICE file for additional information regarding copyright
|
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|
ownership.
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-->
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<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-confluent-platform-bundle</artifactId>
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<version>1.4.0-SNAPSHOT</version>
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</parent>
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<artifactId>nifi-confluent-platform-nar</artifactId>
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<packaging>nar</packaging>
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<dependencies>
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<dependency>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-standard-services-api-nar</artifactId>
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<type>nar</type>
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</dependency>
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<dependency>
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<groupId>org.apache.nifi</groupId>
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<artifactId>nifi-confluent-schema-registry-service</artifactId>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,262 @@
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@ -0,0 +1,125 @@
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nifi-confluent-platform-nar
|
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Copyright 2014-2017 The Apache Software Foundation
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This product includes software developed at
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The Apache Software Foundation (http://www.apache.org/).
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===========================================
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Apache Software License v2
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===========================================
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The following binary components are provided under the Apache Software License v2
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(ASLv2) Jackson JSON processor
|
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The following NOTICE information applies:
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# Jackson JSON processor
|
||||||
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|
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Jackson is a high-performance, Free/Open Source JSON processing library.
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It was originally written by Tatu Saloranta (tatu.saloranta@iki.fi), and has
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been in development since 2007.
|
||||||
|
It is currently developed by a community of developers, as well as supported
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||||||
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commercially by FasterXML.com.
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||||||
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|
||||||
|
## Licensing
|
||||||
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|
||||||
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Jackson core and extension components may licensed under different licenses.
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To find the details that apply to this artifact see the accompanying LICENSE file.
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For more information, including possible other licensing options, contact
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## Credits
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(ASLv2) Apache Avro
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The following NOTICE information applies:
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||||||
|
Apache Avro
|
||||||
|
Copyright 2009-2017 The Apache Software Foundation
|
||||||
|
|
||||||
|
(ASLv2) Snappy Java
|
||||||
|
The following NOTICE information applies:
|
||||||
|
This product includes software developed by Google
|
||||||
|
Snappy: http://code.google.com/p/snappy/ (New BSD License)
|
||||||
|
|
||||||
|
This product includes software developed by Apache
|
||||||
|
PureJavaCrc32C from apache-hadoop-common http://hadoop.apache.org/
|
||||||
|
(Apache 2.0 license)
|
||||||
|
|
||||||
|
This library containd statically linked libstdc++. This inclusion is allowed by
|
||||||
|
"GCC RUntime Library Exception"
|
||||||
|
http://gcc.gnu.org/onlinedocs/libstdc++/manual/license.html
|
||||||
|
|
||||||
|
(ASLv2) Apache Commons Compress
|
||||||
|
The following NOTICE information applies:
|
||||||
|
Apache Commons Compress
|
||||||
|
Copyright 2002-2017 The Apache Software Foundation
|
||||||
|
|
||||||
|
The files in the package org.apache.commons.compress.archivers.sevenz
|
||||||
|
were derived from the LZMA SDK, version 9.20 (C/ and CPP/7zip/),
|
||||||
|
which has been placed in the public domain:
|
||||||
|
|
||||||
|
"LZMA SDK is placed in the public domain." (http://www.7-zip.org/sdk.html)
|
||||||
|
|
||||||
|
(ASLv2) Apache Commons Lang
|
||||||
|
The following NOTICE information applies:
|
||||||
|
Apache Commons Lang
|
||||||
|
Copyright 2001-2015 The Apache Software Foundation
|
||||||
|
|
||||||
|
This product includes software from the Spring Framework,
|
||||||
|
under the Apache License 2.0 (see: StringUtils.containsWhitespace())
|
||||||
|
|
||||||
|
(ASLv2) Apache Commons Codec
|
||||||
|
The following NOTICE information applies:
|
||||||
|
Apache Commons Codec
|
||||||
|
Copyright 2002-2014 The Apache Software Foundation
|
||||||
|
|
||||||
|
src/test/org/apache/commons/codec/language/DoubleMetaphoneTest.java
|
||||||
|
contains test data from http://aspell.net/test/orig/batch0.tab.
|
||||||
|
Copyright (C) 2002 Kevin Atkinson (kevina@gnu.org)
|
||||||
|
|
||||||
|
===============================================================================
|
||||||
|
|
||||||
|
The content of package org.apache.commons.codec.language.bm has been translated
|
||||||
|
from the original php source code available at http://stevemorse.org/phoneticinfo.htm
|
||||||
|
with permission from the original authors.
|
||||||
|
Original source copyright:
|
||||||
|
Copyright (c) 2008 Alexander Beider & Stephen P. Morse.
|
||||||
|
|
||||||
|
(ASLv2) Jettison
|
||||||
|
The following NOTICE information applies:
|
||||||
|
Copyright 2006 Envoi Solutions LLC
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
*****************
|
||||||
|
Public Domain
|
||||||
|
*****************
|
||||||
|
|
||||||
|
The following binary components are provided to the 'Public Domain'. See project link for details.
|
||||||
|
|
||||||
|
(Public Domain) XZ for Java (org.tukaani:xz:jar:1.5 - http://tukaani.org/xz/java.html
|
||||||
|
|
||||||
|
|
||||||
|
************************
|
||||||
|
Common Development and Distribution License 1.1
|
||||||
|
************************
|
||||||
|
|
||||||
|
The following binary components are provided under the Common Development and Distribution License 1.1. See project link for details.
|
||||||
|
|
||||||
|
(CDDL 1.1) (GPL2 w/ CPE) jersey-core-client (org.glassfish.jersey.core:jersey-client:jar:2.19 - https://jersey.java.net/jersey-client/)
|
||||||
|
(CDDL 1.1) (GPL2 w/ CPE) jersey-client (com.sun.jersey:jersey-client:jar:1.19 - https://jersey.java.net/jersey-client/)
|
||||||
|
(CDDL 1.1) (GPL2 w/ CPE) jersey-json (com.sun.jersey:jersey-json:jar:1.19 - https://jersey.java.net/jersey-json/)
|
||||||
|
(CDDL 1.1) (GPL2 w/ CPE) Old JAXB Runtime (com.sun.xml.bind:jaxb-impl:jar:2.2.3-1 - http://jaxb.java.net/)
|
||||||
|
(CDDL 1.1) (GPL2 w/ CPE) Java Architecture For XML Binding (javax.xml.bind:jaxb-api:jar:2.2.2 - https://jaxb.dev.java.net/)
|
||||||
|
|
||||||
|
|
||||||
|
************************
|
||||||
|
Common Development and Distribution License 1.0
|
||||||
|
************************
|
||||||
|
The following binary components are provided under the Common Development and Distribution License 1.0. See project link for details.
|
||||||
|
|
||||||
|
(CDDL 1.0) JSR311 API (javax.ws.rs:jsr311-api:jar:1.1.1 - https://jsr311.dev.java.net)
|
||||||
|
(CDDL 1.0) (GPL3) Streaming API For XML (javax.xml.stream:stax-api:jar:1.0-2 - no url provided)
|
||||||
|
(CDDL 1.0) JavaBeans Activation Framework (JAF) (javax.activation:activation:jar:1.1 - http://java.sun.com/products/javabeans/jaf/index.jsp)
|
||||||
|
|
||||||
|
|
@ -0,0 +1,69 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<!-- Copyright 2016 Hortoworks, Inc. All rights reserved. Hortonworks, Inc.
|
||||||
|
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.
|
||||||
|
See the associated NOTICE file for additional information regarding copyright
|
||||||
|
ownership. -->
|
||||||
|
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||||
|
<modelVersion>4.0.0</modelVersion>
|
||||||
|
|
||||||
|
<parent>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-confluent-platform-bundle</artifactId>
|
||||||
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
|
</parent>
|
||||||
|
|
||||||
|
<artifactId>nifi-confluent-schema-registry-service</artifactId>
|
||||||
|
<packaging>jar</packaging>
|
||||||
|
|
||||||
|
<dependencies>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-schema-registry-service-api</artifactId>
|
||||||
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-record</artifactId>
|
||||||
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-avro-record-utils</artifactId>
|
||||||
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-api</artifactId>
|
||||||
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-ssl-context-service-api</artifactId>
|
||||||
|
</dependency>
|
||||||
|
|
||||||
|
<dependency>
|
||||||
|
<groupId>com.sun.jersey</groupId>
|
||||||
|
<artifactId>jersey-client</artifactId>
|
||||||
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-web-utils</artifactId>
|
||||||
|
</dependency>
|
||||||
|
|
||||||
|
<dependency>
|
||||||
|
<groupId>junit</groupId>
|
||||||
|
<artifactId>junit</artifactId>
|
||||||
|
<scope>test</scope>
|
||||||
|
</dependency>
|
||||||
|
</dependencies>
|
||||||
|
|
||||||
|
<repositories>
|
||||||
|
<repository>
|
||||||
|
<id>confluent</id>
|
||||||
|
<url>http://packages.confluent.io/maven/</url>
|
||||||
|
</repository>
|
||||||
|
</repositories>
|
||||||
|
</project>
|
||||||
|
|
@ -0,0 +1,207 @@
|
||||||
|
/*
|
||||||
|
* 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.confluent.schemaregistry;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.Collection;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.EnumSet;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.Set;
|
||||||
|
import java.util.concurrent.TimeUnit;
|
||||||
|
import java.util.stream.Collectors;
|
||||||
|
import java.util.stream.Stream;
|
||||||
|
|
||||||
|
import javax.net.ssl.SSLContext;
|
||||||
|
|
||||||
|
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.components.PropertyDescriptor;
|
||||||
|
import org.apache.nifi.components.ValidationContext;
|
||||||
|
import org.apache.nifi.components.ValidationResult;
|
||||||
|
import org.apache.nifi.confluent.schemaregistry.client.CachingSchemaRegistryClient;
|
||||||
|
import org.apache.nifi.confluent.schemaregistry.client.RestSchemaRegistryClient;
|
||||||
|
import org.apache.nifi.confluent.schemaregistry.client.SchemaRegistryClient;
|
||||||
|
import org.apache.nifi.context.PropertyContext;
|
||||||
|
import org.apache.nifi.controller.AbstractControllerService;
|
||||||
|
import org.apache.nifi.controller.ConfigurationContext;
|
||||||
|
import org.apache.nifi.processor.util.StandardValidators;
|
||||||
|
import org.apache.nifi.schema.access.SchemaField;
|
||||||
|
import org.apache.nifi.schema.access.SchemaNotFoundException;
|
||||||
|
import org.apache.nifi.schemaregistry.services.SchemaRegistry;
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
import org.apache.nifi.ssl.SSLContextService;
|
||||||
|
import org.apache.nifi.ssl.SSLContextService.ClientAuth;
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
@Tags({"schema", "registry", "confluent", "avro", "kafka"})
|
||||||
|
@CapabilityDescription("Provides a Schema Registry that interacts with the Confluent Schema Registry so that those Schemas that are stored in the Confluent Schema "
|
||||||
|
+ "Registry can be used in NiFi. The Confluent Schema Registry has a notion of a \"subject\" for schemas, which is their terminology for a schema name. When a Schema "
|
||||||
|
+ "is looked up by name by this registry, it will find a Schema in the Confluent Schema Registry with that subject.")
|
||||||
|
public class ConfluentSchemaRegistry extends AbstractControllerService implements SchemaRegistry {
|
||||||
|
|
||||||
|
private static final Set<SchemaField> schemaFields = EnumSet.of(SchemaField.SCHEMA_NAME, SchemaField.SCHEMA_TEXT,
|
||||||
|
SchemaField.SCHEMA_TEXT_FORMAT, SchemaField.SCHEMA_IDENTIFIER, SchemaField.SCHEMA_VERSION);
|
||||||
|
|
||||||
|
|
||||||
|
static final PropertyDescriptor SCHEMA_REGISTRY_URLS = new PropertyDescriptor.Builder()
|
||||||
|
.name("url")
|
||||||
|
.displayName("Schema Registry URLs")
|
||||||
|
.description("A comma-separated list of URLs of the Schema Registry to interact with")
|
||||||
|
.expressionLanguageSupported(true)
|
||||||
|
.defaultValue("http://localhost:8081")
|
||||||
|
.required(true)
|
||||||
|
.addValidator(new MultipleURLValidator())
|
||||||
|
.build();
|
||||||
|
|
||||||
|
static final PropertyDescriptor SSL_CONTEXT = new PropertyDescriptor.Builder()
|
||||||
|
.name("ssl-context")
|
||||||
|
.displayName("SSL Context Service")
|
||||||
|
.description("Specifies the SSL Context Service to use for interacting with the Confluent Schema Registry")
|
||||||
|
.identifiesControllerService(SSLContextService.class)
|
||||||
|
.required(false)
|
||||||
|
.build();
|
||||||
|
|
||||||
|
static final PropertyDescriptor CACHE_SIZE = new PropertyDescriptor.Builder()
|
||||||
|
.name("cache-size")
|
||||||
|
.displayName("Cache Size")
|
||||||
|
.description("Specifies how many Schemas should be cached from the Schema Registry")
|
||||||
|
.addValidator(StandardValidators.NON_NEGATIVE_INTEGER_VALIDATOR)
|
||||||
|
.defaultValue("1000")
|
||||||
|
.required(true)
|
||||||
|
.build();
|
||||||
|
|
||||||
|
static final PropertyDescriptor CACHE_EXPIRATION = new PropertyDescriptor.Builder()
|
||||||
|
.name("cache-expiration")
|
||||||
|
.displayName("Cache Expiration")
|
||||||
|
.description("Specifies how long a Schema that is cached should remain in the cache. Once this time period elapses, a "
|
||||||
|
+ "cached version of a schema will no longer be used, and the service will have to communicate with the "
|
||||||
|
+ "Schema Registry again in order to obtain the schema.")
|
||||||
|
.addValidator(StandardValidators.TIME_PERIOD_VALIDATOR)
|
||||||
|
.defaultValue("1 hour")
|
||||||
|
.required(true)
|
||||||
|
.build();
|
||||||
|
|
||||||
|
static final PropertyDescriptor TIMEOUT = new PropertyDescriptor.Builder()
|
||||||
|
.name("timeout")
|
||||||
|
.displayName("Communications Timeout")
|
||||||
|
.description("Specifies how long to wait to receive data from the Schema Registry before considering the communications a failure")
|
||||||
|
.addValidator(StandardValidators.TIME_PERIOD_VALIDATOR)
|
||||||
|
.expressionLanguageSupported(false)
|
||||||
|
.defaultValue("30 secs")
|
||||||
|
.required(true)
|
||||||
|
.build();
|
||||||
|
|
||||||
|
private volatile SchemaRegistryClient client;
|
||||||
|
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
|
||||||
|
final List<PropertyDescriptor> properties = new ArrayList<>();
|
||||||
|
properties.add(SCHEMA_REGISTRY_URLS);
|
||||||
|
properties.add(SSL_CONTEXT);
|
||||||
|
properties.add(TIMEOUT);
|
||||||
|
properties.add(CACHE_SIZE);
|
||||||
|
properties.add(CACHE_EXPIRATION);
|
||||||
|
return properties;
|
||||||
|
}
|
||||||
|
|
||||||
|
@OnEnabled
|
||||||
|
public void onEnabled(final ConfigurationContext context) {
|
||||||
|
final List<String> baseUrls = getBaseURLs(context);
|
||||||
|
final int timeoutMillis = context.getProperty(TIMEOUT).asTimePeriod(TimeUnit.MILLISECONDS).intValue();
|
||||||
|
|
||||||
|
final SSLContext sslContext;
|
||||||
|
final SSLContextService sslContextService = context.getProperty(SSL_CONTEXT).asControllerService(SSLContextService.class);
|
||||||
|
if (sslContextService == null) {
|
||||||
|
sslContext = null;
|
||||||
|
} else {
|
||||||
|
sslContext = sslContextService.createSSLContext(ClientAuth.REQUIRED);
|
||||||
|
}
|
||||||
|
|
||||||
|
final SchemaRegistryClient restClient = new RestSchemaRegistryClient(baseUrls, timeoutMillis, sslContext);
|
||||||
|
|
||||||
|
final int cacheSize = context.getProperty(CACHE_SIZE).asInteger();
|
||||||
|
final long cacheExpiration = context.getProperty(CACHE_EXPIRATION).asTimePeriod(TimeUnit.NANOSECONDS).longValue();
|
||||||
|
|
||||||
|
client = new CachingSchemaRegistryClient(restClient, cacheSize, cacheExpiration);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected Collection<ValidationResult> customValidate(final ValidationContext validationContext) {
|
||||||
|
final boolean sslContextSet = validationContext.getProperty(SSL_CONTEXT).isSet();
|
||||||
|
if (sslContextSet) {
|
||||||
|
final List<String> baseUrls = getBaseURLs(validationContext);
|
||||||
|
final List<String> insecure = baseUrls.stream()
|
||||||
|
.filter(url -> !url.startsWith("https"))
|
||||||
|
.collect(Collectors.toList());
|
||||||
|
|
||||||
|
if (!insecure.isEmpty()) {
|
||||||
|
return Collections.singleton(new ValidationResult.Builder()
|
||||||
|
.subject(SCHEMA_REGISTRY_URLS.getDisplayName())
|
||||||
|
.input(insecure.get(0))
|
||||||
|
.valid(false)
|
||||||
|
.explanation("When SSL Context is configured, all Schema Registry URL's must use HTTPS, not HTTP")
|
||||||
|
.build());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return Collections.emptyList();
|
||||||
|
}
|
||||||
|
|
||||||
|
private List<String> getBaseURLs(final PropertyContext context) {
|
||||||
|
final String urls = context.getProperty(SCHEMA_REGISTRY_URLS).evaluateAttributeExpressions().getValue();
|
||||||
|
final List<String> baseUrls = Stream.of(urls.split(","))
|
||||||
|
.map(url -> url.trim())
|
||||||
|
.collect(Collectors.toList());
|
||||||
|
|
||||||
|
return baseUrls;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String retrieveSchemaText(final String schemaName) throws IOException, SchemaNotFoundException {
|
||||||
|
final RecordSchema schema = retrieveSchema(schemaName);
|
||||||
|
return schema.getSchemaText().get();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String retrieveSchemaText(final long schemaId, final int version) throws IOException, SchemaNotFoundException {
|
||||||
|
final RecordSchema schema = retrieveSchema(schemaId, version);
|
||||||
|
return schema.getSchemaText().get();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema retrieveSchema(final String schemaName) throws IOException, SchemaNotFoundException {
|
||||||
|
final RecordSchema schema = client.getSchema(schemaName);
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema retrieveSchema(final long schemaId, final int version) throws IOException, SchemaNotFoundException {
|
||||||
|
final RecordSchema schema = client.getSchema((int) schemaId);
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Set<SchemaField> getSuppliedSchemaFields() {
|
||||||
|
return schemaFields;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,51 @@
|
||||||
|
/*
|
||||||
|
* 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.confluent.schemaregistry;
|
||||||
|
|
||||||
|
import org.apache.nifi.components.ValidationContext;
|
||||||
|
import org.apache.nifi.components.ValidationResult;
|
||||||
|
import org.apache.nifi.components.Validator;
|
||||||
|
import org.apache.nifi.processor.util.StandardValidators;
|
||||||
|
|
||||||
|
public class MultipleURLValidator implements Validator {
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public ValidationResult validate(final String subject, final String input, final ValidationContext context) {
|
||||||
|
final String[] splits = input.split(",");
|
||||||
|
if (splits.length == 0) {
|
||||||
|
return new ValidationResult.Builder()
|
||||||
|
.subject(subject)
|
||||||
|
.input(input)
|
||||||
|
.valid(false)
|
||||||
|
.explanation("At least one URL must be specified")
|
||||||
|
.build();
|
||||||
|
}
|
||||||
|
|
||||||
|
for (final String split : splits) {
|
||||||
|
final String url = split.trim();
|
||||||
|
|
||||||
|
final ValidationResult result = StandardValidators.URL_VALIDATOR.validate(subject, url, context);
|
||||||
|
if (result != null && !result.isValid()) {
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return new ValidationResult.Builder().subject(subject).input(input).valid(true).build();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,129 @@
|
||||||
|
/*
|
||||||
|
* 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.confluent.schemaregistry.client;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.util.LinkedHashMap;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
import org.apache.nifi.schema.access.SchemaNotFoundException;
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
|
||||||
|
|
||||||
|
public class CachingSchemaRegistryClient implements SchemaRegistryClient {
|
||||||
|
private final SchemaRegistryClient client;
|
||||||
|
private final long expirationNanos;
|
||||||
|
|
||||||
|
private final Map<String, CachedRecordSchema> nameCache;
|
||||||
|
private final Map<Integer, CachedRecordSchema> idCache;
|
||||||
|
|
||||||
|
|
||||||
|
public CachingSchemaRegistryClient(final SchemaRegistryClient toWrap, final int cacheSize, final long expirationNanos) {
|
||||||
|
this.client = toWrap;
|
||||||
|
this.expirationNanos = expirationNanos;
|
||||||
|
|
||||||
|
nameCache = new Cache<>(cacheSize);
|
||||||
|
idCache = new Cache<>(cacheSize);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema getSchema(final String schemaName) throws IOException, SchemaNotFoundException {
|
||||||
|
RecordSchema schema = getFromCache(nameCache, schemaName);
|
||||||
|
if (schema != null) {
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
schema = client.getSchema(schemaName);
|
||||||
|
|
||||||
|
synchronized (nameCache) {
|
||||||
|
nameCache.put(schemaName, new CachedRecordSchema(schema));
|
||||||
|
}
|
||||||
|
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema getSchema(final int schemaId) throws IOException, SchemaNotFoundException {
|
||||||
|
RecordSchema schema = getFromCache(idCache, schemaId);
|
||||||
|
if (schema != null) {
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
schema = client.getSchema(schemaId);
|
||||||
|
|
||||||
|
synchronized (idCache) {
|
||||||
|
idCache.put(schemaId, new CachedRecordSchema(schema));
|
||||||
|
}
|
||||||
|
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
private RecordSchema getFromCache(final Map<?, CachedRecordSchema> cache, final Object key) {
|
||||||
|
final CachedRecordSchema cachedSchema;
|
||||||
|
synchronized (cache) {
|
||||||
|
cachedSchema = cache.get(key);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (cachedSchema == null) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (cachedSchema.isOlderThan(System.nanoTime() - expirationNanos)) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
return cachedSchema.getSchema();
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
private static class Cache<K, V> extends LinkedHashMap<K, V> {
|
||||||
|
private final int cacheSize;
|
||||||
|
|
||||||
|
public Cache(final int cacheSize) {
|
||||||
|
this.cacheSize = cacheSize;
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
protected boolean removeEldestEntry(final Map.Entry<K, V> eldest) {
|
||||||
|
return size() >= cacheSize;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
private static class CachedRecordSchema {
|
||||||
|
private final RecordSchema schema;
|
||||||
|
private final long cachedTimestamp;
|
||||||
|
|
||||||
|
public CachedRecordSchema(final RecordSchema schema) {
|
||||||
|
this(schema, System.nanoTime());
|
||||||
|
}
|
||||||
|
|
||||||
|
public CachedRecordSchema(final RecordSchema schema, final long timestamp) {
|
||||||
|
this.schema = schema;
|
||||||
|
this.cachedTimestamp = timestamp;
|
||||||
|
}
|
||||||
|
|
||||||
|
public RecordSchema getSchema() {
|
||||||
|
return schema;
|
||||||
|
}
|
||||||
|
|
||||||
|
public boolean isOlderThan(final long timestamp) {
|
||||||
|
return cachedTimestamp < timestamp;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,181 @@
|
||||||
|
/*
|
||||||
|
* 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.confluent.schemaregistry.client;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.io.UnsupportedEncodingException;
|
||||||
|
import java.net.URLEncoder;
|
||||||
|
import java.util.ArrayList;
|
||||||
|
import java.util.List;
|
||||||
|
import java.util.concurrent.ConcurrentHashMap;
|
||||||
|
import java.util.concurrent.ConcurrentMap;
|
||||||
|
|
||||||
|
import javax.net.ssl.SSLContext;
|
||||||
|
import javax.ws.rs.core.MediaType;
|
||||||
|
import javax.ws.rs.core.Response;
|
||||||
|
|
||||||
|
import org.apache.avro.Schema;
|
||||||
|
import org.apache.avro.SchemaParseException;
|
||||||
|
import org.apache.nifi.avro.AvroTypeUtil;
|
||||||
|
import org.apache.nifi.schema.access.SchemaNotFoundException;
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
import org.apache.nifi.serialization.record.SchemaIdentifier;
|
||||||
|
import org.apache.nifi.web.util.WebUtils;
|
||||||
|
import org.codehaus.jackson.JsonNode;
|
||||||
|
import org.codehaus.jackson.node.ArrayNode;
|
||||||
|
|
||||||
|
import com.sun.jersey.api.client.Client;
|
||||||
|
import com.sun.jersey.api.client.ClientResponse;
|
||||||
|
import com.sun.jersey.api.client.WebResource;
|
||||||
|
import com.sun.jersey.api.client.config.ClientConfig;
|
||||||
|
import com.sun.jersey.api.client.config.DefaultClientConfig;
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* <p>
|
||||||
|
* A Client for interacting with Confluent Schema Registry. We make use of Jersey Client to interact with the
|
||||||
|
* Confluent Schema Registry REST API because the provided schema registry client does not provide a way to
|
||||||
|
* use HTTPS for interacting with the schema registry (it assumes that system properties will be used, instead of
|
||||||
|
* an SSLContext) and also does not allow configuration of (or use) timeouts. As a result, if the Schema Registry
|
||||||
|
* crashed or was shut down, NiFi threads could be stuck indefinitely until NiFi is restarted. To avoid this,
|
||||||
|
* we make use of Jersey Client and set timeouts appropriately.
|
||||||
|
* </p>
|
||||||
|
*/
|
||||||
|
public class RestSchemaRegistryClient implements SchemaRegistryClient {
|
||||||
|
private final List<String> baseUrls;
|
||||||
|
private final Client client;
|
||||||
|
|
||||||
|
private static final String SUBJECT_FIELD_NAME = "subject";
|
||||||
|
private static final String VERSION_FIELD_NAME = "version";
|
||||||
|
private static final String ID_FIELD_NAME = "id";
|
||||||
|
private static final String SCHEMA_TEXT_FIELD_NAME = "schema";
|
||||||
|
|
||||||
|
private final ConcurrentMap<String, Integer> schemaNameToIdentifierMap = new ConcurrentHashMap<>();
|
||||||
|
private final ConcurrentMap<Integer, String> schemaIdentifierToNameMap = new ConcurrentHashMap<>();
|
||||||
|
|
||||||
|
|
||||||
|
public RestSchemaRegistryClient(final List<String> baseUrls, final int timeoutMillis, final SSLContext sslContext) {
|
||||||
|
this.baseUrls = new ArrayList<>(baseUrls);
|
||||||
|
|
||||||
|
final ClientConfig clientConfig = new DefaultClientConfig();
|
||||||
|
clientConfig.getProperties().put(ClientConfig.PROPERTY_CONNECT_TIMEOUT, timeoutMillis);
|
||||||
|
clientConfig.getProperties().put(ClientConfig.PROPERTY_READ_TIMEOUT, timeoutMillis);
|
||||||
|
client = WebUtils.createClient(clientConfig, sslContext);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema getSchema(final String schemaName) throws IOException, SchemaNotFoundException {
|
||||||
|
final String pathSuffix = getSubjectPath(schemaName);
|
||||||
|
final JsonNode responseJson = fetchJsonResponse(pathSuffix, "name " + schemaName);
|
||||||
|
|
||||||
|
final RecordSchema recordSchema = createRecordSchema(responseJson);
|
||||||
|
return recordSchema;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema getSchema(final int schemaId) throws IOException, SchemaNotFoundException {
|
||||||
|
// The Confluent Schema Registry's REST API does not provide us with the 'subject' (name) of a Schema given the ID.
|
||||||
|
// It will provide us only the text of the Schema itself. Therefore, in order to determine the name (which is required for
|
||||||
|
// a SchemaIdentifier), we must obtain a list of all Schema names, and then request each and every one of the schemas to determine
|
||||||
|
// if the ID requested matches the Schema's ID.
|
||||||
|
// To make this more efficient, we will cache a mapping of Schema Name to identifier, so that we can look this up more efficiently.
|
||||||
|
|
||||||
|
// Check if we have cached the Identifier to Name mapping
|
||||||
|
final String schemaName = schemaIdentifierToNameMap.get(schemaId);
|
||||||
|
if (schemaName != null) {
|
||||||
|
return getSchema(schemaName);
|
||||||
|
}
|
||||||
|
|
||||||
|
final String schemaDescription = "identifier " + schemaId;
|
||||||
|
final JsonNode schemaNameArray = fetchJsonResponse("/subjects", schemaDescription);
|
||||||
|
if (!schemaNameArray.isArray()) {
|
||||||
|
throw new IOException("When determining Subjects that are available, expected a JSON Array but did not receive a valid response");
|
||||||
|
}
|
||||||
|
|
||||||
|
final ArrayNode arrayNode = (ArrayNode) schemaNameArray;
|
||||||
|
for (final JsonNode node : arrayNode) {
|
||||||
|
final String nodeName = node.getTextValue();
|
||||||
|
|
||||||
|
final String schemaPath = getSubjectPath(nodeName);
|
||||||
|
final JsonNode schemaNode = fetchJsonResponse(schemaPath, schemaDescription);
|
||||||
|
|
||||||
|
final int id = schemaNode.get(ID_FIELD_NAME).asInt();
|
||||||
|
schemaNameToIdentifierMap.put(nodeName, id);
|
||||||
|
schemaIdentifierToNameMap.put(id, nodeName);
|
||||||
|
|
||||||
|
if (id == schemaId) {
|
||||||
|
return createRecordSchema(schemaNode);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
throw new SchemaNotFoundException("Could not find a schema with identifier " + schemaId);
|
||||||
|
}
|
||||||
|
|
||||||
|
private RecordSchema createRecordSchema(final JsonNode schemaNode) throws SchemaNotFoundException {
|
||||||
|
final String subject = schemaNode.get(SUBJECT_FIELD_NAME).getTextValue();
|
||||||
|
final int version = schemaNode.get(VERSION_FIELD_NAME).asInt();
|
||||||
|
final int id = schemaNode.get(ID_FIELD_NAME).asInt();
|
||||||
|
final String schemaText = schemaNode.get(SCHEMA_TEXT_FIELD_NAME).getTextValue();
|
||||||
|
|
||||||
|
try {
|
||||||
|
final Schema avroSchema = new Schema.Parser().parse(schemaText);
|
||||||
|
final SchemaIdentifier schemaId = SchemaIdentifier.of(subject, id, version);
|
||||||
|
|
||||||
|
final RecordSchema recordSchema = AvroTypeUtil.createSchema(avroSchema, schemaText, schemaId);
|
||||||
|
return recordSchema;
|
||||||
|
} catch (final SchemaParseException spe) {
|
||||||
|
throw new SchemaNotFoundException("Obtained Schema with id " + id + " and name " + subject
|
||||||
|
+ " from Confluent Schema Registry but the Schema Text that was returned is not a valid Avro Schema");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private String getSubjectPath(final String schemaName) throws UnsupportedEncodingException {
|
||||||
|
return "/subjects/" + URLEncoder.encode(schemaName, "UTF-8") + "/versions/latest";
|
||||||
|
}
|
||||||
|
|
||||||
|
private JsonNode fetchJsonResponse(final String pathSuffix, final String schemaDescription) throws SchemaNotFoundException, IOException {
|
||||||
|
String errorMessage = null;
|
||||||
|
for (final String baseUrl : baseUrls) {
|
||||||
|
final String path = pathSuffix.startsWith("/") ? pathSuffix : "/" + pathSuffix;
|
||||||
|
final String trimmedBase = baseUrl.endsWith("/") ? baseUrl.substring(0, baseUrl.length() - 1) : baseUrl;
|
||||||
|
final String url = trimmedBase + path;
|
||||||
|
|
||||||
|
final WebResource.Builder builder = client.resource(url).accept(MediaType.APPLICATION_JSON);
|
||||||
|
final ClientResponse response = builder.get(ClientResponse.class);
|
||||||
|
final int responseCode = response.getStatus();
|
||||||
|
|
||||||
|
if (responseCode == Response.Status.OK.getStatusCode()) {
|
||||||
|
final JsonNode responseJson = response.getEntity(JsonNode.class);
|
||||||
|
return responseJson;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (responseCode == Response.Status.NOT_FOUND.getStatusCode()) {
|
||||||
|
throw new SchemaNotFoundException("Could not find Schema with " + schemaDescription + " from the Confluent Schema Registry located at " + baseUrl);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (errorMessage == null) {
|
||||||
|
errorMessage = response.getEntity(String.class);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
throw new IOException("Failed to retrieve Schema with " + schemaDescription + " from any of the Confluent Schema Registry URL's provided; failure response message: " + errorMessage);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,30 @@
|
||||||
|
/*
|
||||||
|
* 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.confluent.schemaregistry.client;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
|
||||||
|
import org.apache.nifi.schema.access.SchemaNotFoundException;
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
|
||||||
|
public interface SchemaRegistryClient {
|
||||||
|
|
||||||
|
RecordSchema getSchema(String schemaName) throws IOException, SchemaNotFoundException;
|
||||||
|
|
||||||
|
RecordSchema getSchema(int schemaId) throws IOException, SchemaNotFoundException;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,16 @@
|
||||||
|
# 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.confluent.schemaregistry.ConfluentSchemaRegistry
|
||||||
|
|
@ -0,0 +1,27 @@
|
||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<!-- 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. -->
|
||||||
|
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
|
||||||
|
<modelVersion>4.0.0</modelVersion>
|
||||||
|
<parent>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-nar-bundles</artifactId>
|
||||||
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
|
</parent>
|
||||||
|
<artifactId>nifi-confluent-platform-bundle</artifactId>
|
||||||
|
<packaging>pom</packaging>
|
||||||
|
<description>A bundle of components that interact with the Confluent Platform</description>
|
||||||
|
|
||||||
|
<modules>
|
||||||
|
<module>nifi-confluent-schema-registry-service</module>
|
||||||
|
<module>nifi-confluent-platform-nar</module>
|
||||||
|
</modules>
|
||||||
|
</project>
|
||||||
|
|
@ -16,20 +16,19 @@
|
||||||
*/
|
*/
|
||||||
package org.apache.nifi.schema.access;
|
package org.apache.nifi.schema.access;
|
||||||
|
|
||||||
|
import java.util.Collection;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.List;
|
||||||
|
|
||||||
import org.apache.nifi.avro.AvroSchemaValidator;
|
import org.apache.nifi.avro.AvroSchemaValidator;
|
||||||
import org.apache.nifi.components.AllowableValue;
|
import org.apache.nifi.components.AllowableValue;
|
||||||
import org.apache.nifi.components.PropertyDescriptor;
|
import org.apache.nifi.components.PropertyDescriptor;
|
||||||
import org.apache.nifi.components.ValidationContext;
|
import org.apache.nifi.components.ValidationContext;
|
||||||
import org.apache.nifi.components.ValidationResult;
|
import org.apache.nifi.components.ValidationResult;
|
||||||
import org.apache.nifi.controller.ConfigurationContext;
|
import org.apache.nifi.context.PropertyContext;
|
||||||
import org.apache.nifi.processor.ProcessContext;
|
|
||||||
import org.apache.nifi.processor.util.StandardValidators;
|
import org.apache.nifi.processor.util.StandardValidators;
|
||||||
import org.apache.nifi.schemaregistry.services.SchemaRegistry;
|
import org.apache.nifi.schemaregistry.services.SchemaRegistry;
|
||||||
|
|
||||||
import java.util.Collection;
|
|
||||||
import java.util.Collections;
|
|
||||||
import java.util.List;
|
|
||||||
|
|
||||||
public class SchemaAccessUtils {
|
public class SchemaAccessUtils {
|
||||||
|
|
||||||
public static final AllowableValue SCHEMA_NAME_PROPERTY = new AllowableValue("schema-name", "Use 'Schema Name' Property",
|
public static final AllowableValue SCHEMA_NAME_PROPERTY = new AllowableValue("schema-name", "Use 'Schema Name' Property",
|
||||||
|
|
@ -45,7 +44,10 @@ public class SchemaAccessUtils {
|
||||||
"The FlowFile contains 3 Attributes that will be used to lookup a Schema from the configured Schema Registry: 'schema.identifier', 'schema.version', and 'schema.protocol.version'");
|
"The FlowFile contains 3 Attributes that will be used to lookup a Schema from the configured Schema Registry: 'schema.identifier', 'schema.version', and 'schema.protocol.version'");
|
||||||
public static final AllowableValue INHERIT_RECORD_SCHEMA = new AllowableValue("inherit-record-schema", "Inherit Record Schema",
|
public static final AllowableValue INHERIT_RECORD_SCHEMA = new AllowableValue("inherit-record-schema", "Inherit Record Schema",
|
||||||
"The schema used to write records will be the same schema that was given to the Record when the Record was created.");
|
"The schema used to write records will be the same schema that was given to the Record when the Record was created.");
|
||||||
|
public static final AllowableValue CONFLUENT_ENCODED_SCHEMA = new AllowableValue("confluent-encoded", "Confluent Content-Encoded Schema Reference",
|
||||||
|
"The content of the FlowFile contains a reference to a schema in the Schema Registry service. The reference is encoded as a single "
|
||||||
|
+ "'Magic Byte' followed by 4 bytes representing the identifier of the schema, as outlined at http://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html. "
|
||||||
|
+ "This is based on version 3.2.x of the Confluent Schema Registry.");
|
||||||
|
|
||||||
|
|
||||||
public static final PropertyDescriptor SCHEMA_REGISTRY = new PropertyDescriptor.Builder()
|
public static final PropertyDescriptor SCHEMA_REGISTRY = new PropertyDescriptor.Builder()
|
||||||
|
|
@ -60,7 +62,7 @@ public class SchemaAccessUtils {
|
||||||
.name("schema-access-strategy")
|
.name("schema-access-strategy")
|
||||||
.displayName("Schema Access Strategy")
|
.displayName("Schema Access Strategy")
|
||||||
.description("Specifies how to obtain the schema that is to be used for interpreting the data.")
|
.description("Specifies how to obtain the schema that is to be used for interpreting the data.")
|
||||||
.allowableValues(SCHEMA_NAME_PROPERTY, SCHEMA_TEXT_PROPERTY, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA)
|
.allowableValues(SCHEMA_NAME_PROPERTY, SCHEMA_TEXT_PROPERTY, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA, CONFLUENT_ENCODED_SCHEMA)
|
||||||
.defaultValue(SCHEMA_NAME_PROPERTY.getValue())
|
.defaultValue(SCHEMA_NAME_PROPERTY.getValue())
|
||||||
.required(true)
|
.required(true)
|
||||||
.build();
|
.build();
|
||||||
|
|
@ -115,42 +117,11 @@ public class SchemaAccessUtils {
|
||||||
|
|
||||||
private static boolean isSchemaRegistryRequired(final String schemaAccessValue) {
|
private static boolean isSchemaRegistryRequired(final String schemaAccessValue) {
|
||||||
return HWX_CONTENT_ENCODED_SCHEMA.getValue().equalsIgnoreCase(schemaAccessValue) || SCHEMA_NAME_PROPERTY.getValue().equalsIgnoreCase(schemaAccessValue)
|
return HWX_CONTENT_ENCODED_SCHEMA.getValue().equalsIgnoreCase(schemaAccessValue) || SCHEMA_NAME_PROPERTY.getValue().equalsIgnoreCase(schemaAccessValue)
|
||||||
|| HWX_SCHEMA_REF_ATTRIBUTES.getValue().equalsIgnoreCase(schemaAccessValue);
|
|| HWX_SCHEMA_REF_ATTRIBUTES.getValue().equalsIgnoreCase(schemaAccessValue) || CONFLUENT_ENCODED_SCHEMA.getValue().equalsIgnoreCase(schemaAccessValue);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static SchemaAccessStrategy getSchemaAccessStrategy(final String allowableValue, final SchemaRegistry schemaRegistry, final ProcessContext context) {
|
|
||||||
if (allowableValue.equalsIgnoreCase(SCHEMA_NAME_PROPERTY.getValue())) {
|
public static SchemaAccessStrategy getSchemaAccessStrategy(final String allowableValue, final SchemaRegistry schemaRegistry, final PropertyContext context) {
|
||||||
return new SchemaNamePropertyStrategy(schemaRegistry, context.getProperty(SCHEMA_NAME));
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(INHERIT_RECORD_SCHEMA.getValue())) {
|
|
||||||
return new InheritSchemaFromRecord();
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(SCHEMA_TEXT_PROPERTY.getValue())) {
|
|
||||||
return new AvroSchemaTextStrategy(context.getProperty(SCHEMA_TEXT));
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_CONTENT_ENCODED_SCHEMA.getValue())) {
|
|
||||||
return new HortonworksEncodedSchemaReferenceStrategy(schemaRegistry);
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
|
||||||
return new HortonworksAttributeSchemaReferenceStrategy(schemaRegistry);
|
|
||||||
}
|
|
||||||
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
public static SchemaAccessStrategy getSchemaAccessStrategy(final String allowableValue, final SchemaRegistry schemaRegistry, final ConfigurationContext context) {
|
|
||||||
if (allowableValue.equalsIgnoreCase(SCHEMA_NAME_PROPERTY.getValue())) {
|
|
||||||
return new SchemaNamePropertyStrategy(schemaRegistry, context.getProperty(SCHEMA_NAME));
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(INHERIT_RECORD_SCHEMA.getValue())) {
|
|
||||||
return new InheritSchemaFromRecord();
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(SCHEMA_TEXT_PROPERTY.getValue())) {
|
|
||||||
return new AvroSchemaTextStrategy(context.getProperty(SCHEMA_TEXT));
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_CONTENT_ENCODED_SCHEMA.getValue())) {
|
|
||||||
return new HortonworksEncodedSchemaReferenceStrategy(schemaRegistry);
|
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
|
||||||
return new HortonworksAttributeSchemaReferenceStrategy(schemaRegistry);
|
|
||||||
}
|
|
||||||
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
public static SchemaAccessStrategy getSchemaAccessStrategy(final String allowableValue, final SchemaRegistry schemaRegistry, final ValidationContext context) {
|
|
||||||
if (allowableValue.equalsIgnoreCase(SCHEMA_NAME_PROPERTY.getValue())) {
|
if (allowableValue.equalsIgnoreCase(SCHEMA_NAME_PROPERTY.getValue())) {
|
||||||
return new SchemaNamePropertyStrategy(schemaRegistry, context.getProperty(SCHEMA_NAME));
|
return new SchemaNamePropertyStrategy(schemaRegistry, context.getProperty(SCHEMA_NAME));
|
||||||
} else if (allowableValue.equalsIgnoreCase(INHERIT_RECORD_SCHEMA.getValue())) {
|
} else if (allowableValue.equalsIgnoreCase(INHERIT_RECORD_SCHEMA.getValue())) {
|
||||||
|
|
@ -161,6 +132,8 @@ public class SchemaAccessUtils {
|
||||||
return new HortonworksEncodedSchemaReferenceStrategy(schemaRegistry);
|
return new HortonworksEncodedSchemaReferenceStrategy(schemaRegistry);
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
||||||
return new HortonworksAttributeSchemaReferenceStrategy(schemaRegistry);
|
return new HortonworksAttributeSchemaReferenceStrategy(schemaRegistry);
|
||||||
|
} else if (allowableValue.equalsIgnoreCase(CONFLUENT_ENCODED_SCHEMA.getValue())) {
|
||||||
|
return new ConfluentSchemaRegistryStrategy(schemaRegistry);
|
||||||
}
|
}
|
||||||
|
|
||||||
return null;
|
return null;
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,74 @@
|
||||||
|
/*
|
||||||
|
* 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.schema.access;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.io.InputStream;
|
||||||
|
import java.nio.ByteBuffer;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.HashSet;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import org.apache.nifi.flowfile.FlowFile;
|
||||||
|
import org.apache.nifi.schemaregistry.services.SchemaRegistry;
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
import org.apache.nifi.stream.io.StreamUtils;
|
||||||
|
|
||||||
|
public class ConfluentSchemaRegistryStrategy implements SchemaAccessStrategy {
|
||||||
|
private final Set<SchemaField> schemaFields;
|
||||||
|
private final SchemaRegistry schemaRegistry;
|
||||||
|
|
||||||
|
public ConfluentSchemaRegistryStrategy(final SchemaRegistry schemaRegistry) {
|
||||||
|
this.schemaRegistry = schemaRegistry;
|
||||||
|
|
||||||
|
schemaFields = new HashSet<>();
|
||||||
|
schemaFields.add(SchemaField.SCHEMA_IDENTIFIER);
|
||||||
|
schemaFields.add(SchemaField.SCHEMA_VERSION);
|
||||||
|
schemaFields.addAll(schemaRegistry == null ? Collections.emptySet() : schemaRegistry.getSuppliedSchemaFields());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public RecordSchema getSchema(final FlowFile flowFile, final InputStream contentStream, final RecordSchema readSchema) throws SchemaNotFoundException, IOException {
|
||||||
|
final byte[] buffer = new byte[5];
|
||||||
|
try {
|
||||||
|
StreamUtils.fillBuffer(contentStream, buffer);
|
||||||
|
} catch (final IOException ioe) {
|
||||||
|
throw new SchemaNotFoundException("Could not read first 5 bytes from stream", ioe);
|
||||||
|
}
|
||||||
|
|
||||||
|
// This encoding follows the pattern that is provided for serializing data by the Confluent Schema Registry serializer
|
||||||
|
// as it is provided at:
|
||||||
|
// http://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html#wire-format
|
||||||
|
// The format consists of the first byte always being 0, to indicate a 'magic byte' followed by 4 bytes
|
||||||
|
// representing the schema id.
|
||||||
|
final ByteBuffer bb = ByteBuffer.wrap(buffer);
|
||||||
|
final int magicByte = bb.get();
|
||||||
|
if (magicByte != 0) {
|
||||||
|
throw new SchemaNotFoundException("Schema Encoding appears to be of an incompatible version. "
|
||||||
|
+ "Expected stream to begin with a Magic Byte of 0 but first byte was " + magicByte);
|
||||||
|
}
|
||||||
|
|
||||||
|
final int schemaId = bb.getInt();
|
||||||
|
return schemaRegistry.retrieveSchema(schemaId, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Set<SchemaField> getSuppliedSchemaFields() {
|
||||||
|
return schemaFields;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,77 @@
|
||||||
|
/*
|
||||||
|
* 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.schema.access;
|
||||||
|
|
||||||
|
import java.io.IOException;
|
||||||
|
import java.io.OutputStream;
|
||||||
|
import java.nio.ByteBuffer;
|
||||||
|
import java.util.Collections;
|
||||||
|
import java.util.EnumSet;
|
||||||
|
import java.util.Map;
|
||||||
|
import java.util.OptionalInt;
|
||||||
|
import java.util.OptionalLong;
|
||||||
|
import java.util.Set;
|
||||||
|
|
||||||
|
import org.apache.nifi.serialization.record.RecordSchema;
|
||||||
|
import org.apache.nifi.serialization.record.SchemaIdentifier;
|
||||||
|
|
||||||
|
public class ConfluentSchemaRegistryWriter implements SchemaAccessWriter {
|
||||||
|
private static final Set<SchemaField> requiredSchemaFields = EnumSet.of(SchemaField.SCHEMA_IDENTIFIER, SchemaField.SCHEMA_VERSION);
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void writeHeader(final RecordSchema schema, final OutputStream out) throws IOException {
|
||||||
|
final SchemaIdentifier identifier = schema.getIdentifier();
|
||||||
|
final long id = identifier.getIdentifier().getAsLong();
|
||||||
|
|
||||||
|
// This encoding follows the pattern that is provided for serializing data by the Confluent Schema Registry serializer
|
||||||
|
// as it is provided at:
|
||||||
|
// http://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html#wire-format
|
||||||
|
// The format consists of the first byte always being 0, to indicate a 'magic byte' followed by 4 bytes
|
||||||
|
// representing the schema id.
|
||||||
|
final ByteBuffer bb = ByteBuffer.allocate(5);
|
||||||
|
bb.put((byte) 0);
|
||||||
|
bb.putInt((int) id);
|
||||||
|
|
||||||
|
out.write(bb.array());
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Map<String, String> getAttributes(final RecordSchema schema) {
|
||||||
|
return Collections.emptyMap();
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public void validateSchema(RecordSchema schema) throws SchemaNotFoundException {
|
||||||
|
final SchemaIdentifier identifier = schema.getIdentifier();
|
||||||
|
final OptionalLong identifierOption = identifier.getIdentifier();
|
||||||
|
if (!identifierOption.isPresent()) {
|
||||||
|
throw new SchemaNotFoundException("Cannot write Confluent Schema Registry Reference because the Schema Identifier is not known");
|
||||||
|
}
|
||||||
|
|
||||||
|
final OptionalInt versionOption = identifier.getVersion();
|
||||||
|
if (!versionOption.isPresent()) {
|
||||||
|
throw new SchemaNotFoundException("Cannot write Confluent Schema Registry Reference because the Schema Version is not known");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public Set<SchemaField> getRequiredSchemaFields() {
|
||||||
|
return requiredSchemaFields;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -24,13 +24,4 @@
|
||||||
<module>nifi-registry-service</module>
|
<module>nifi-registry-service</module>
|
||||||
<module>nifi-registry-nar</module>
|
<module>nifi-registry-nar</module>
|
||||||
</modules>
|
</modules>
|
||||||
<dependencyManagement>
|
|
||||||
<dependencies>
|
|
||||||
<dependency>
|
|
||||||
<groupId>org.apache.nifi</groupId>
|
|
||||||
<artifactId>nifi-registry-processors</artifactId>
|
|
||||||
<version>1.2.0-SNAPSHOT</version>
|
|
||||||
</dependency>
|
|
||||||
</dependencies>
|
|
||||||
</dependencyManagement>
|
|
||||||
</project>
|
</project>
|
||||||
|
|
|
||||||
|
|
@ -60,12 +60,6 @@ public class HortonworksSchemaRegistry extends AbstractControllerService impleme
|
||||||
private final ConcurrentMap<String, Tuple<SchemaVersionInfo, Long>> schemaVersionByNameCache = new ConcurrentHashMap<>();
|
private final ConcurrentMap<String, Tuple<SchemaVersionInfo, Long>> schemaVersionByNameCache = new ConcurrentHashMap<>();
|
||||||
private final ConcurrentMap<SchemaVersionKey, Tuple<SchemaVersionInfo, Long>> schemaVersionByKeyCache = new ConcurrentHashMap<>();
|
private final ConcurrentMap<SchemaVersionKey, Tuple<SchemaVersionInfo, Long>> schemaVersionByKeyCache = new ConcurrentHashMap<>();
|
||||||
|
|
||||||
private static final String LOGICAL_TYPE_DATE = "date";
|
|
||||||
private static final String LOGICAL_TYPE_TIME_MILLIS = "time-millis";
|
|
||||||
private static final String LOGICAL_TYPE_TIME_MICROS = "time-micros";
|
|
||||||
private static final String LOGICAL_TYPE_TIMESTAMP_MILLIS = "timestamp-millis";
|
|
||||||
private static final String LOGICAL_TYPE_TIMESTAMP_MICROS = "timestamp-micros";
|
|
||||||
|
|
||||||
private volatile long versionInfoCacheNanos;
|
private volatile long versionInfoCacheNanos;
|
||||||
|
|
||||||
static final PropertyDescriptor URL = new PropertyDescriptor.Builder()
|
static final PropertyDescriptor URL = new PropertyDescriptor.Builder()
|
||||||
|
|
|
||||||
|
|
@ -63,10 +63,11 @@ public class CSVUtils {
|
||||||
.build();
|
.build();
|
||||||
static final PropertyDescriptor SKIP_HEADER_LINE = new PropertyDescriptor.Builder()
|
static final PropertyDescriptor SKIP_HEADER_LINE = new PropertyDescriptor.Builder()
|
||||||
.name("Skip Header Line")
|
.name("Skip Header Line")
|
||||||
.description("Specifies whether or not the first line of CSV should be considered a Header and skipped. If the Schema Access Strategy "
|
.displayName("Treat First Line as Header")
|
||||||
|
.description("Specifies whether or not the first line of CSV should be considered a Header or should be considered a record. If the Schema Access Strategy "
|
||||||
+ "indicates that the columns must be defined in the header, then this property will be ignored, since the header must always be "
|
+ "indicates that the columns must be defined in the header, then this property will be ignored, since the header must always be "
|
||||||
+ "present and won't be processed as a Record. Otherwise, this property should be 'true' if the first non-comment line of CSV "
|
+ "present and won't be processed as a Record. Otherwise, if 'true', then the first line of CSV data will not be processed as a record and if 'false',"
|
||||||
+ "contains header information that needs to be ignored.")
|
+ "then the first line will be interpreted as a record.")
|
||||||
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
|
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
|
||||||
.expressionLanguageSupported(false)
|
.expressionLanguageSupported(false)
|
||||||
.allowableValues("true", "false")
|
.allowableValues("true", "false")
|
||||||
|
|
|
||||||
|
|
@ -36,6 +36,7 @@ import org.apache.nifi.components.PropertyDescriptor;
|
||||||
import org.apache.nifi.components.ValidationContext;
|
import org.apache.nifi.components.ValidationContext;
|
||||||
import org.apache.nifi.components.ValidationResult;
|
import org.apache.nifi.components.ValidationResult;
|
||||||
import org.apache.nifi.controller.ConfigurationContext;
|
import org.apache.nifi.controller.ConfigurationContext;
|
||||||
|
import org.apache.nifi.schema.access.ConfluentSchemaRegistryWriter;
|
||||||
import org.apache.nifi.schema.access.HortonworksAttributeSchemaReferenceWriter;
|
import org.apache.nifi.schema.access.HortonworksAttributeSchemaReferenceWriter;
|
||||||
import org.apache.nifi.schema.access.HortonworksEncodedSchemaReferenceWriter;
|
import org.apache.nifi.schema.access.HortonworksEncodedSchemaReferenceWriter;
|
||||||
import org.apache.nifi.schema.access.NopSchemaAccessWriter;
|
import org.apache.nifi.schema.access.NopSchemaAccessWriter;
|
||||||
|
|
@ -63,6 +64,11 @@ public abstract class SchemaRegistryRecordSetWriter extends SchemaRegistryServic
|
||||||
static final AllowableValue HWX_SCHEMA_REF_ATTRIBUTES = new AllowableValue("hwx-schema-ref-attributes", "HWX Schema Reference Attributes",
|
static final AllowableValue HWX_SCHEMA_REF_ATTRIBUTES = new AllowableValue("hwx-schema-ref-attributes", "HWX Schema Reference Attributes",
|
||||||
"The FlowFile will be given a set of 3 attributes to describe the schema: 'schema.identifier', 'schema.version', and 'schema.protocol.version'. Note that if "
|
"The FlowFile will be given a set of 3 attributes to describe the schema: 'schema.identifier', 'schema.version', and 'schema.protocol.version'. Note that if "
|
||||||
+ "the schema for a record does not contain the necessary identifier and version, an Exception will be thrown when attempting to write the data.");
|
+ "the schema for a record does not contain the necessary identifier and version, an Exception will be thrown when attempting to write the data.");
|
||||||
|
static final AllowableValue CONFLUENT_ENCODED_SCHEMA = new AllowableValue("confluent-encoded", "Confluent Schema Registry Reference",
|
||||||
|
"The content of the FlowFile will contain a reference to a schema in the Schema Registry service. The reference is encoded as a single "
|
||||||
|
+ "'Magic Byte' followed by 4 bytes representing the identifier of the schema, as outlined at http://docs.confluent.io/current/schema-registry/docs/serializer-formatter.html. "
|
||||||
|
+ "This will be prepended to each FlowFile. Note that if the schema for a record does not contain the necessary identifier and version, "
|
||||||
|
+ "an Exception will be thrown when attempting to write the data. This is based on the encoding used by version 3.2.x of the Confluent Schema Registry.");
|
||||||
static final AllowableValue NO_SCHEMA = new AllowableValue("no-schema", "Do Not Write Schema", "Do not add any schema-related information to the FlowFile.");
|
static final AllowableValue NO_SCHEMA = new AllowableValue("no-schema", "Do Not Write Schema", "Do not add any schema-related information to the FlowFile.");
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
|
@ -73,8 +79,6 @@ public abstract class SchemaRegistryRecordSetWriter extends SchemaRegistryServic
|
||||||
private static final PropertyDescriptor SCHEMA_WRITE_STRATEGY = new PropertyDescriptor.Builder()
|
private static final PropertyDescriptor SCHEMA_WRITE_STRATEGY = new PropertyDescriptor.Builder()
|
||||||
.name("Schema Write Strategy")
|
.name("Schema Write Strategy")
|
||||||
.description("Specifies how the schema for a Record should be added to the data.")
|
.description("Specifies how the schema for a Record should be added to the data.")
|
||||||
.allowableValues(SCHEMA_NAME_ATTRIBUTE, AVRO_SCHEMA_ATTRIBUTE, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA, NO_SCHEMA)
|
|
||||||
.defaultValue(SCHEMA_NAME_ATTRIBUTE.getValue())
|
|
||||||
.required(true)
|
.required(true)
|
||||||
.build();
|
.build();
|
||||||
|
|
||||||
|
|
@ -83,7 +87,7 @@ public abstract class SchemaRegistryRecordSetWriter extends SchemaRegistryServic
|
||||||
private volatile SchemaAccessWriter schemaAccessWriter;
|
private volatile SchemaAccessWriter schemaAccessWriter;
|
||||||
|
|
||||||
private final List<AllowableValue> schemaWriteStrategyList = Collections.unmodifiableList(Arrays.asList(
|
private final List<AllowableValue> schemaWriteStrategyList = Collections.unmodifiableList(Arrays.asList(
|
||||||
SCHEMA_NAME_ATTRIBUTE, AVRO_SCHEMA_ATTRIBUTE, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA, NO_SCHEMA));
|
SCHEMA_NAME_ATTRIBUTE, AVRO_SCHEMA_ATTRIBUTE, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA, CONFLUENT_ENCODED_SCHEMA, NO_SCHEMA));
|
||||||
private final List<AllowableValue> schemaAccessStrategyList = Collections.unmodifiableList(Arrays.asList(
|
private final List<AllowableValue> schemaAccessStrategyList = Collections.unmodifiableList(Arrays.asList(
|
||||||
SCHEMA_NAME_PROPERTY, INHERIT_RECORD_SCHEMA, SCHEMA_TEXT_PROPERTY));
|
SCHEMA_NAME_PROPERTY, INHERIT_RECORD_SCHEMA, SCHEMA_TEXT_PROPERTY));
|
||||||
|
|
||||||
|
|
@ -156,6 +160,8 @@ public abstract class SchemaRegistryRecordSetWriter extends SchemaRegistryServic
|
||||||
return new HortonworksEncodedSchemaReferenceWriter();
|
return new HortonworksEncodedSchemaReferenceWriter();
|
||||||
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
} else if (allowableValue.equalsIgnoreCase(HWX_SCHEMA_REF_ATTRIBUTES.getValue())) {
|
||||||
return new HortonworksAttributeSchemaReferenceWriter();
|
return new HortonworksAttributeSchemaReferenceWriter();
|
||||||
|
} else if (allowableValue.equalsIgnoreCase(CONFLUENT_ENCODED_SCHEMA.getValue())) {
|
||||||
|
return new ConfluentSchemaRegistryWriter();
|
||||||
} else if (allowableValue.equalsIgnoreCase(NO_SCHEMA.getValue())) {
|
} else if (allowableValue.equalsIgnoreCase(NO_SCHEMA.getValue())) {
|
||||||
return new NopSchemaAccessWriter();
|
return new NopSchemaAccessWriter();
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -51,6 +51,7 @@ import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_NAME_PROPER
|
||||||
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_REGISTRY;
|
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_REGISTRY;
|
||||||
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT;
|
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT;
|
||||||
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT_PROPERTY;
|
import static org.apache.nifi.schema.access.SchemaAccessUtils.SCHEMA_TEXT_PROPERTY;
|
||||||
|
import static org.apache.nifi.schema.access.SchemaAccessUtils.CONFLUENT_ENCODED_SCHEMA;
|
||||||
|
|
||||||
public abstract class SchemaRegistryService extends AbstractControllerService {
|
public abstract class SchemaRegistryService extends AbstractControllerService {
|
||||||
|
|
||||||
|
|
@ -59,7 +60,7 @@ public abstract class SchemaRegistryService extends AbstractControllerService {
|
||||||
private static final InputStream EMPTY_INPUT_STREAM = new ByteArrayInputStream(new byte[0]);
|
private static final InputStream EMPTY_INPUT_STREAM = new ByteArrayInputStream(new byte[0]);
|
||||||
|
|
||||||
private final List<AllowableValue> strategyList = Collections.unmodifiableList(Arrays.asList(
|
private final List<AllowableValue> strategyList = Collections.unmodifiableList(Arrays.asList(
|
||||||
SCHEMA_NAME_PROPERTY, SCHEMA_TEXT_PROPERTY, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA));
|
SCHEMA_NAME_PROPERTY, SCHEMA_TEXT_PROPERTY, HWX_SCHEMA_REF_ATTRIBUTES, HWX_CONTENT_ENCODED_SCHEMA, CONFLUENT_ENCODED_SCHEMA));
|
||||||
|
|
||||||
protected PropertyDescriptor getSchemaAcessStrategyDescriptor() {
|
protected PropertyDescriptor getSchemaAcessStrategyDescriptor() {
|
||||||
return getPropertyDescriptor(SCHEMA_ACCESS_STRATEGY.getName());
|
return getPropertyDescriptor(SCHEMA_ACCESS_STRATEGY.getName());
|
||||||
|
|
|
||||||
|
|
@ -35,6 +35,7 @@
|
||||||
<module>nifi-kafka-bundle</module>
|
<module>nifi-kafka-bundle</module>
|
||||||
<module>nifi-kite-bundle</module>
|
<module>nifi-kite-bundle</module>
|
||||||
<module>nifi-solr-bundle</module>
|
<module>nifi-solr-bundle</module>
|
||||||
|
<module>nifi-confluent-platform-bundle</module>
|
||||||
<module>nifi-aws-bundle</module>
|
<module>nifi-aws-bundle</module>
|
||||||
<module>nifi-social-media-bundle</module>
|
<module>nifi-social-media-bundle</module>
|
||||||
<module>nifi-enrich-bundle</module>
|
<module>nifi-enrich-bundle</module>
|
||||||
|
|
|
||||||
11
pom.xml
11
pom.xml
|
|
@ -1276,6 +1276,12 @@
|
||||||
<version>1.4.0-SNAPSHOT</version>
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
<type>nar</type>
|
<type>nar</type>
|
||||||
</dependency>
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-confluent-platform-nar</artifactId>
|
||||||
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
|
<type>nar</type>
|
||||||
|
</dependency>
|
||||||
<dependency>
|
<dependency>
|
||||||
<groupId>org.apache.nifi</groupId>
|
<groupId>org.apache.nifi</groupId>
|
||||||
<artifactId>nifi-kerberos-iaa-providers-nar</artifactId>
|
<artifactId>nifi-kerberos-iaa-providers-nar</artifactId>
|
||||||
|
|
@ -1471,6 +1477,11 @@
|
||||||
<artifactId>nifi-security-utils</artifactId>
|
<artifactId>nifi-security-utils</artifactId>
|
||||||
<version>1.4.0-SNAPSHOT</version>
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
</dependency>
|
</dependency>
|
||||||
|
<dependency>
|
||||||
|
<groupId>org.apache.nifi</groupId>
|
||||||
|
<artifactId>nifi-confluent-schema-registry-service</artifactId>
|
||||||
|
<version>1.4.0-SNAPSHOT</version>
|
||||||
|
</dependency>
|
||||||
<dependency>
|
<dependency>
|
||||||
<groupId>org.apache.nifi</groupId>
|
<groupId>org.apache.nifi</groupId>
|
||||||
<artifactId>nifi-logging-utils</artifactId>
|
<artifactId>nifi-logging-utils</artifactId>
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue