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GORA-437 implement couchdb datastore
,added a new store for gora as gora-couchdb ,added unit tests ,added javadocs ,bugfixed
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<?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> | ||
|
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<parent> | ||
<groupId>org.apache.gora</groupId> | ||
<artifactId>gora</artifactId> | ||
<version>0.7-SNAPSHOT</version> | ||
<relativePath>../</relativePath> | ||
</parent> | ||
<artifactId>gora-couchdb</artifactId> | ||
<packaging>bundle</packaging> | ||
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<name>Apache Gora :: CouchDB</name> | ||
<url>http://gora.apache.org</url> | ||
<description>The Apache Gora open source framework provides an in-memory data model and | ||
persistence for big data. Gora supports persisting to column stores, key value stores, | ||
document stores and RDBMSs, and analyzing the data with extensive Apache Hadoop MapReduce | ||
support.</description> | ||
<inceptionYear>2010</inceptionYear> | ||
<organization> | ||
<name>The Apache Software Foundation</name> | ||
<url>http://www.apache.org/</url> | ||
</organization> | ||
<issueManagement> | ||
<system>JIRA</system> | ||
<url>https://issues.apache.org/jira/browse/GORA</url> | ||
</issueManagement> | ||
<ciManagement> | ||
<system>Jenkins</system> | ||
<url>https://builds.apache.org/job/Gora-trunk/</url> | ||
</ciManagement> | ||
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<properties> | ||
<osgi.import>*</osgi.import> | ||
<osgi.export>org.apache.gora.hbase*;version="${project.version}";-noimport:=true</osgi.export> | ||
</properties> | ||
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<build> | ||
<directory>target</directory> | ||
<outputDirectory>target/classes</outputDirectory> | ||
<finalName>${project.artifactId}-${project.version}</finalName> | ||
<testOutputDirectory>target/test-classes</testOutputDirectory> | ||
<testSourceDirectory>src/test/java</testSourceDirectory> | ||
<sourceDirectory>src/main/java</sourceDirectory> | ||
<testResources> | ||
<testResource> | ||
<directory>${project.basedir}/src/test/conf</directory> | ||
<includes> | ||
<include>**/*</include> | ||
</includes> | ||
<!--targetPath>${project.basedir}/target/classes/</targetPath --> | ||
</testResource> | ||
</testResources> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.codehaus.mojo</groupId> | ||
<artifactId>build-helper-maven-plugin</artifactId> | ||
<version>${build-helper-maven-plugin.version}</version> | ||
<executions> | ||
<execution> | ||
<phase>generate-sources</phase> | ||
<goals> | ||
<goal>add-source</goal> | ||
</goals> | ||
<configuration> | ||
<sources> | ||
<source>src/examples/java</source> | ||
</sources> | ||
</configuration> | ||
</execution> | ||
</executions> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
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<repositories> | ||
<repository> | ||
<id>clojars.org</id> | ||
<url>http://clojars.org/repo</url> | ||
</repository> | ||
</repositories> | ||
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<dependencies> | ||
<!-- Gora Internal Dependencies --> | ||
<dependency> | ||
<groupId>org.apache.gora</groupId> | ||
<artifactId>gora-core</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
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<dependency> | ||
<groupId>org.apache.gora</groupId> | ||
<artifactId>gora-core</artifactId> | ||
<type>test-jar</type> | ||
<scope>test</scope> | ||
</dependency> | ||
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<dependency> | ||
<groupId>org.apache.gora</groupId> | ||
<artifactId>gora-core</artifactId> | ||
<type>test-jar</type> | ||
<scope>test</scope> | ||
</dependency> | ||
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<!-- END of Gora Internal Dependencies --> | ||
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<dependency> | ||
<groupId>org.apache.hadoop</groupId> | ||
<artifactId>hadoop-client</artifactId> | ||
<scope>compile</scope> | ||
<optional>true</optional> | ||
</dependency> | ||
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<!-- Apache CouchDB java client --> | ||
<dependency> | ||
<groupId>org.ektorp</groupId> | ||
<artifactId>org.ektorp</artifactId> | ||
<version>1.4.2</version> | ||
</dependency> | ||
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<dependency> | ||
<groupId>org.apache.avro</groupId> | ||
<artifactId>avro</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
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<!-- Misc Dependencies --> | ||
<dependency> | ||
<groupId>org.jdom</groupId> | ||
<artifactId>jdom</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
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<dependency> | ||
<groupId>com.google.guava</groupId> | ||
<artifactId>guava</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
|
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<!-- Logging Dependencies --> | ||
<dependency> | ||
<groupId>org.slf4j</groupId> | ||
<artifactId>slf4j-api</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
|
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<dependency> | ||
<groupId>org.slf4j</groupId> | ||
<artifactId>slf4j-simple</artifactId> | ||
<scope>compile</scope> | ||
</dependency> | ||
|
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<dependency> | ||
<groupId>log4j</groupId> | ||
<artifactId>log4j</artifactId> | ||
<scope>runtime</scope> | ||
<exclusions> | ||
<exclusion> | ||
<groupId>javax.jms</groupId> | ||
<artifactId>jms</artifactId> | ||
</exclusion> | ||
</exclusions> | ||
</dependency> | ||
|
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<dependency> | ||
<groupId>org.testcontainers</groupId> | ||
<artifactId>testcontainers</artifactId> | ||
<version>1.1.0</version> | ||
</dependency> | ||
<!-- END of Logging Dependencies --> | ||
|
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<!-- Testing Dependencies --> | ||
<dependency> | ||
<groupId>junit</groupId> | ||
<artifactId>junit</artifactId> | ||
<scope>test</scope> | ||
</dependency> | ||
|
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<dependency> | ||
<groupId>org.apache.hadoop</groupId> | ||
<artifactId>hadoop-minicluster</artifactId> | ||
<scope>test</scope> | ||
</dependency> | ||
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<!-- END of Testing Dependencies --> | ||
</dependencies> | ||
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</project> |
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gora-couchdb/src/main/java/org/apache/gora/couchdb/query/CouchDBQuery.java
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/** | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you under the Apache License, Version 2.0 (the | ||
* "License"); you may not use this file except in compliance | ||
* with the License. You may obtain a copy of the License at | ||
* <p> | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* <p> | ||
* 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.gora.couchdb.query; | ||
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import org.apache.gora.couchdb.store.CouchDBStore; | ||
import org.apache.gora.persistency.impl.PersistentBase; | ||
import org.apache.gora.query.Query; | ||
import org.apache.gora.query.impl.QueryBase; | ||
import org.apache.gora.store.DataStore; | ||
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/** | ||
* CouchDB specific implementation of the {@link Query} interface. | ||
*/ | ||
public class CouchDBQuery<K, T extends PersistentBase> extends QueryBase<K, T> { | ||
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final CouchDBStore store; | ||
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public CouchDBQuery() { | ||
super(null); | ||
store = null; | ||
} | ||
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public CouchDBQuery(DataStore<K, T> dataStore) { | ||
super(dataStore); | ||
store = (CouchDBStore) dataStore; | ||
} | ||
} |
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85
gora-couchdb/src/main/java/org/apache/gora/couchdb/query/CouchDBResult.java
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/** | ||
* Licensed to the Apache Software Foundation (ASF) under one | ||
* or more contributor license agreements. See the NOTICE file | ||
* distributed with this work for additional information | ||
* regarding copyright ownership. The ASF licenses this file | ||
* to you under the Apache License, Version 2.0 (the | ||
* "License"); you may not use this file except in compliance | ||
* with the License. You may obtain a copy of the License at | ||
* <p> | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* <p> | ||
* 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.gora.couchdb.query; | ||
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import org.apache.gora.couchdb.store.CouchDBStore; | ||
import org.apache.gora.persistency.Persistent; | ||
import org.apache.gora.query.Query; | ||
import org.apache.gora.query.impl.ResultBase; | ||
import org.apache.gora.store.DataStore; | ||
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import java.io.IOException; | ||
import java.util.List; | ||
import java.util.Map; | ||
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/** | ||
* CouchDB specific implementation of the {@link org.apache.gora.query.Result} | ||
* interface. | ||
*/ | ||
public class CouchDBResult<K, T extends Persistent> extends ResultBase<K, T> { | ||
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/** | ||
* Result set containing query results | ||
*/ | ||
private List<Map> result; | ||
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protected CouchDBStore dataStore; | ||
int position = 0; | ||
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/** | ||
* Constructor for the result set | ||
* | ||
* @param dataStore Data store used | ||
* @param query Query used | ||
* @param result Result obtained from querying | ||
*/ | ||
public CouchDBResult(DataStore<K, T> dataStore, Query<K, T> query, List<Map> result) { | ||
super(dataStore, query); | ||
this.result = result; | ||
this.dataStore = (CouchDBStore) dataStore; | ||
} | ||
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/** | ||
* Gets the next item | ||
*/ | ||
@Override | ||
protected boolean nextInner() throws IOException { | ||
if (result == null || result.size() <= 0 || position >= result.size()) { | ||
return false; | ||
} | ||
key = (K) result.get(position).get("_id"); | ||
persistent = (T) dataStore.newInstance(result.get(position++), query.getFields()); | ||
return persistent != null; | ||
} | ||
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/** | ||
* Gets the items reading progress | ||
*/ | ||
@Override | ||
public float getProgress() throws IOException, InterruptedException { | ||
if (result != null && result.size() > 0) { | ||
return (float) position / (float) result.size(); | ||
} else { | ||
return 0; | ||
} | ||
} | ||
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public List<Map> getResultData() { | ||
return result; | ||
} | ||
} |
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