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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GORA-437) Implement CouchDB Datastore
Date Sun, 14 Aug 2016 20:53:20 GMT

    [ https://issues.apache.org/jira/browse/GORA-437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15420479#comment-15420479
] 

ASF GitHub Bot commented on GORA-437:
-------------------------------------

Github user lewismc commented on a diff in the pull request:

    https://github.com/apache/gora/pull/74#discussion_r74708250
  
    --- Diff: gora-couchdb/src/main/java/org/apache/gora/couchdb/store/CouchDBMappingBuilder.java
---
    @@ -0,0 +1,96 @@
    +/**
    + * 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.store;
    +
    +import org.apache.gora.persistency.impl.PersistentBase;
    +import org.jdom.Element;
    +import org.jdom.input.SAXBuilder;
    +
    +import java.io.IOException;
    +import java.io.InputStream;
    +import java.util.List;
    +
    +public class CouchDBMappingBuilder<K, T extends PersistentBase> {
    +
    +  // Class description
    +  private static final String TAG_CLASS = "class";
    +  private static final String TAG_FIELD = "field";
    +  private static final String ATT_KEYCLASS = "keyClass";
    +  private static final String ATT_DOCUMENT = "document";
    +
    +  // Document description
    +  private static final String ATT_NAME = "name";
    +
    +  /**
    +   * Mapping instance being built
    +   */
    +  private final CouchDBMapping mapping;
    +
    +  private final CouchDBStore<K, T> dataStore;
    +
    +  public CouchDBMappingBuilder(final CouchDBStore<K, T> store) {
    +    this.dataStore = store;
    +    this.mapping = new CouchDBMapping();
    +  }
    +
    +  /**
    +   * Return the built mapping if it is in a legal state
    +   */
    +  public CouchDBMapping build() {
    +    if (mapping.getDatabaseName() == null)
    +      throw new IllegalStateException("A collection is not specified");
    --- End diff --
    
    Can you also add this to the application logging through use of Slf4j.


> Implement CouchDB Datastore
> ---------------------------
>
>                 Key: GORA-437
>                 URL: https://issues.apache.org/jira/browse/GORA-437
>             Project: Apache Gora
>          Issue Type: New Feature
>            Reporter: Furkan KAMACI
>            Assignee: cihad g├╝zel
>              Labels: gora-couchdb, gsoc2016, storage
>             Fix For: 0.8
>
>
> Apache CouchDB is a document-oriented NoSQL database that uses JSON to store data, JavaScript
as its query language using MapReduce, and HTTP for an API. It could be nice to support CouchDB
as a datastore at Gora.



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