TreasuryYieldMulti.java

/*
 * Copyright 2011 10gen Inc.
 *
 * Licensed 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 com.mongodb.hadoop.examples.treasury;

import com.mongodb.BasicDBObject;
import com.mongodb.MongoClientURI;
import com.mongodb.hadoop.splitter.MultiCollectionSplitBuilder;
import com.mongodb.hadoop.splitter.MultiMongoCollectionSplitter;
import com.mongodb.hadoop.util.MongoTool;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.ToolRunner;

import java.util.Date;

/**
 * The treasury yield xml config object.
 */
public class TreasuryYieldMulti extends MongoTool {
    public static void main(final String[] pArgs) throws Exception {
        //Here is an example of how to use multiple collections as the input to
        //a hadoop job, from within Java code directly.
        MultiCollectionSplitBuilder builder = new MultiCollectionSplitBuilder();
        builder.add(new MongoClientURI("mongodb://localhost:27017/mongo_hadoop.yield_historical.in"), null, true, null, null, null, false,
                    null)
               .add(new MongoClientURI("mongodb://localhost:27017/mongo_hadoop.yield_historical.in"), null, true, null, null,
                    new BasicDBObject("_id", new BasicDBObject("$gt", new Date(883440000000L))), false, null);

        Configuration conf = new Configuration();
        conf.set(MultiMongoCollectionSplitter.MULTI_COLLECTION_CONF_KEY, builder.toJSON());

        System.exit(ToolRunner.run(conf, new TreasuryYieldXMLConfig(conf), pArgs));
    }
}