Java tutorial
/* * $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-httpmime/src/main/java/org/apache/http/entity/mime/content/FileBody.java $ * $Revision: 709485 $ * $Date: 2008-10-31 18:16:08 +0100 (Fri, 31 Oct 2008) $ * * ==================================================================== * 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.http.entity.mime.content; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import org.apache.http.entity.mime.MIME; import org.apache.james.mime4j.message.BinaryBody; public class FileBody extends AbstractContentBody implements BinaryBody { private final File file; public FileBody(final File file, final String mimeType) { super(mimeType); if (file == null) { throw new IllegalArgumentException("File may not be null"); } this.file = file; } public FileBody(final File file) { this(file, "application/octet-stream"); } public InputStream getInputStream() throws IOException { return new FileInputStream(this.file); } public void writeTo(final OutputStream out, int mode) throws IOException { if (out == null) { throw new IllegalArgumentException("Output stream may not be null"); } InputStream in = new FileInputStream(this.file); try { byte[] tmp = new byte[4096]; int l; while ((l = in.read(tmp)) != -1) { out.write(tmp, 0, l); } out.flush(); } finally { in.close(); } } public String getTransferEncoding() { return MIME.ENC_BINARY; } public String getCharset() { return null; } public long getContentLength() { return this.file.length(); } public String getFilename() { return this.file.getName(); } public File getFile() { return this.file; } }