de.aflx.sardine.impl.io.ConsumingInputStream.java Source code

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Here is the source code for de.aflx.sardine.impl.io.ConsumingInputStream.java

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/*
 * Copyright 2009-2011 Jon Stevens et al.
 *
 * 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 de.aflx.sardine.impl.io;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;

import java.io.IOException;
import java.io.InputStream;

/**
 * Wrapper for the input stream, will consume the rest of the response on {@link ConsumingInputStream#close()}.
 *
 * @author mirko
 * @version $Id: ConsumingInputStream.java 251 2011-05-25 15:29:48Z latchkey $
 */
public class ConsumingInputStream extends InputStream {

    private InputStream delegate;
    private HttpResponse response;

    /**
     * @param response The HTTP response to read from
     * @throws IOException        If there is a problem reading from the response
     * @throws NullPointerException If the response has no message entity
     */
    public ConsumingInputStream(final HttpResponse response) throws IOException {
        this.response = response;
        HttpEntity entity = response.getEntity();
        this.delegate = entity.getContent();
    }

    public long getContentLength() {
        return this.response.getEntity().getContentLength();
    }

    @Override
    public int read(byte[] b) throws IOException {
        return delegate.read(b);
    }

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

    @Override
    public long skip(long n) throws IOException {
        return delegate.skip(n);
    }

    @Override
    public int available() throws IOException {
        return delegate.available();
    }

    @Override
    public void mark(int readlimit) {
        delegate.mark(readlimit);
    }

    @Override
    public void reset() throws IOException {
        delegate.reset();
    }

    @Override
    public boolean markSupported() {
        return delegate.markSupported();
    }

    @Override
    public int read() throws IOException {
        return delegate.read();
    }

    @Override
    public void close() throws IOException {
        response.getEntity().consumeContent();
    }
}