/*
* 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.hcatalog.utils;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.hcatalog.data.DefaultHCatRecord;
import org.apache.hcatalog.data.HCatRecord;
import org.apache.hcatalog.data.transfer.DataTransferFactory;
import org.apache.hcatalog.data.transfer.HCatWriter;
import org.apache.hcatalog.data.transfer.WriterContext;
public class DataWriterSlave {
public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(args[0]));
WriterContext cntxt = (WriterContext) ois.readObject();
ois.close();
HCatWriter writer = DataTransferFactory.getHCatWriter(cntxt);
writer.write(new HCatRecordItr(args[1]));
}
private static class HCatRecordItr implements Iterator<HCatRecord> {
BufferedReader reader;
String curLine;
public HCatRecordItr(String fileName) throws FileNotFoundException {
reader = new BufferedReader(new FileReader(new File(fileName)));
}
@Override
public boolean hasNext() {
try {
curLine = reader.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return null == curLine ? false : true;
}
@Override
public HCatRecord next() {
String[] fields = curLine.split("\t");
List<Object> data = new ArrayList<Object>(3);
data.add(fields[0]);
data.add(Integer.parseInt(fields[1]));
data.add(Double.parseDouble(fields[2]));
return new DefaultHCatRecord(data);
}
@Override
public void remove() {
// TODO Auto-generated method stub
}
}
}