org.eclipse.jgit.transport.http.apache.TemporaryBufferEntity.java Source code

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Here is the source code for org.eclipse.jgit.transport.http.apache.TemporaryBufferEntity.java

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/*
 * Copyright (C) 2014 Christian Halstrick <christian.halstrick@sap.com>
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.eclipse.jgit.transport.http.apache;

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

import org.apache.http.HttpEntity;
import org.apache.http.entity.AbstractHttpEntity;
import org.eclipse.jgit.util.TemporaryBuffer;

/**
 * A {@link HttpEntity} which takes it's content from a {@link TemporaryBuffer}
 *
 * @since 3.3
 */
public class TemporaryBufferEntity extends AbstractHttpEntity implements AutoCloseable {
    private TemporaryBuffer buffer;

    private Integer contentLength;

    /**
     * Construct a new {@link HttpEntity} which will contain the content stored
     * in the specified buffer
     *
     * @param buffer
     */
    public TemporaryBufferEntity(TemporaryBuffer buffer) {
        this.buffer = buffer;
    }

    /**
     * @return buffer containing the content
     */
    public TemporaryBuffer getBuffer() {
        return buffer;
    }

    public boolean isRepeatable() {
        return true;
    }

    public long getContentLength() {
        if (contentLength != null)
            return contentLength.intValue();
        return buffer.length();
    }

    public InputStream getContent() throws IOException, IllegalStateException {
        return buffer.openInputStream();
    }

    public void writeTo(OutputStream outstream) throws IOException {
        // TODO: dont we need a progressmonitor
        buffer.writeTo(outstream, null);
    }

    public boolean isStreaming() {
        return false;
    }

    /**
     * @param contentLength
     */
    public void setContentLength(int contentLength) {
        this.contentLength = Integer.valueOf(contentLength);
    }

    /**
     * Close destroys the associated buffer used to buffer the entity
     *
     * @since 4.5
     */
    @Override
    public void close() {
        if (buffer != null) {
            buffer.destroy();
        }
    }
}