com.mongodb.hadoop.examples.TreasuryYieldMapper.java Source code

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Here is the source code for com.mongodb.hadoop.examples.TreasuryYieldMapper.java

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// TreasuryYieldMapper.java
/*
 * Copyright 2010 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;

import java.io.*;
import java.util.*;

import org.apache.commons.logging.*;

import org.apache.hadoop.conf.*;
import org.apache.hadoop.io.*;

import org.apache.hadoop.mapreduce.*;
import org.apache.hadoop.util.*;
import org.bson.*;

import com.mongodb.hadoop.util.*;

public class TreasuryYieldMapper extends Mapper<java.util.Date, BSONObject, IntWritable, DoubleWritable> {

    private static final Log log = LogFactory.getLog(TreasuryYieldMapper.class);

    public void map(java.util.Date key, BSONObject value, Context context)
            throws IOException, InterruptedException {

        int year = key.getYear() + 1900;
        double bid10Year = ((Number) value.get("bc10Year")).doubleValue();

        context.write(new IntWritable(year), new DoubleWritable(bid10Year));

    }

}