bytearraypartsource.java

Light in the box 抓取程序。 使用HttpClient

/*
 * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/java/org/apache/commons/httpclient/methods/multipart/ByteArrayPartSource.java,v 1.7 2004/04/18 23:51:37 jsdever Exp $
 * $Revision: 480424 $
 * $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
 *
 * ====================================================================
 *
 *  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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.commons.httpclient.methods.multipart;

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

/**
 * A PartSource that reads from a byte array.  This class should be used when
 * the data to post is already loaded into memory.
 * 
 * @author <a href="mailto:[e-mail]">Michael Becke</a>
 *   
 * @since 2.0 
 */
public class ByteArrayPartSource implements PartSource {

    /** Name of the source file. */
    private String fileName;

    /** Byte array of the source file. */
    private byte[] bytes;

    /**
     * Constructor for ByteArrayPartSource.
     * 
     * @param fileName the name of the file these bytes represent
     * @param bytes the content of this part
     */
    public ByteArrayPartSource(String fileName, byte[] bytes) {

        this.fileName = fileName;
        this.bytes = bytes;

    }

    /**
     * @see PartSource#getLength()
     */
    public long getLength() {
        return bytes.length;
    }

    /**
     * @see PartSource#getFileName()
     */
    public String getFileName() {
        return fileName;
    }

    /**
     * @see PartSource#createInputStream()
     */
    public InputStream createInputStream() throws IOException {
        return new ByteArrayInputStream(bytes);
    }

}