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/*
 * Copyright (c) 2020 MarkLogic Corporation
 *
 * 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.marklogic.mapreduce;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableUtils;

/**
 * Writable used to describe how to create and read from an input stream.
 * 
 * @author jchen
 */
public class StreamLocator implements Writable {
    private Path path;
    private CompressionCodec codec;
    
    public StreamLocator() {
    }
    
    public StreamLocator(Path path, CompressionCodec codec) {
        this.path = path;
        this.codec = codec;
    }

    public Path getPath() {
        return path;
    }

    public void setPath(Path path) {
        this.path = path;
    }

    public CompressionCodec getCodec() {
        return codec;
    }

    public void setCodec(CompressionCodec codec) {
        this.codec = codec;
    }

    @Override
    public void readFields(DataInput in) throws IOException {
        path = new Path(Text.readString(in));
        codec = WritableUtils.readEnum(in, CompressionCodec.class);
    }

    @Override
    public void write(DataOutput out) throws IOException {
        Text.writeString(out, path.toString());
        WritableUtils.writeEnum(out, codec);
    }
    
    @Override
    public String toString() {
        return "path: " + path + ", codec: " + codec;
    }
}