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/***********************************************************************************************************************
 * Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
 *
 * 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 eu.stratosphere.api.common.io;

import java.io.IOException;
import java.util.zip.InflaterInputStream;

import eu.stratosphere.core.fs.FSDataInputStream;

public class InflaterInputStreamFSInputWrapper extends FSDataInputStream {

	private InflaterInputStream inStream;

	public InflaterInputStreamFSInputWrapper(FSDataInputStream inStream) {
		this.inStream = new InflaterInputStream(inStream);
	}
	
	@Override
	public void seek(long desired) throws IOException {
		throw new UnsupportedOperationException("Compressed streams do not support the seek operation");
	}

	@Override
	public int read() throws IOException {
		return inStream.read();
	}
	
	@Override
	public int read(byte[] b, int off, int len) throws IOException {
		return inStream.read(b, off, len);
	}
	
	@Override
	public int read(byte[] b) throws IOException {
		return inStream.read(b);
	}
}