/*
    * ====================================================================
    * 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.ContentType;
  import org.apache.http.entity.mime.MIME;
  import org.apache.http.entity.mime.MultipartEntityBuilder;
  import org.apache.http.util.Args;
  
  /**
   * Binary body part backed by a file.
   *
   * @see MultipartEntityBuilder
   *
   * @since 4.0
   */
  public class FileBody extends AbstractContentBody {
  
      private final File file;
      private final String filename;
  
      /**
       * @since 4.1
       *
       * @deprecated (4.3) use {@link FileBody#FileBody(File, ContentType, String)}
       *   or {@link MultipartEntityBuilder}
       */
      @Deprecated
      public FileBody(final File file,
                      final String filename,
                      final String mimeType,
                      final String charset) {
          this(file, ContentType.create(mimeType, charset), filename);
      }
  
      /**
       * @since 4.1
       *
       * @deprecated (4.3) use {@link FileBody#FileBody(File, ContentType)}
       *   or {@link MultipartEntityBuilder}
       */
      @Deprecated
      public FileBody(final File file,
                      final String mimeType,
                      final String charset) {
          this(file, null, mimeType, charset);
      }
  
      /**
       * @deprecated (4.3) use {@link FileBody#FileBody(File, ContentType)}
       *   or {@link MultipartEntityBuilder}
       */
      @Deprecated
      public FileBody(final File file, final String mimeType) {
          this(file, ContentType.create(mimeType), null);
      }
  
      public FileBody(final File file) {
          this(file, ContentType.DEFAULT_BINARY, file != null ? file.getName() : null);
      }
  
      /**
       * @since 4.3
       */
      public FileBody(final File file, final ContentType contentType, final String filename) {
          super(contentType);
          Args.notNull(file, "File");
          this.file = file;
         this.filename = filename;
     }
 
     /**
      * @since 4.3
      */
     public FileBody(final File file, final ContentType contentType) {
         this(file, contentType, null);
     }
 
     public InputStream getInputStream() throws IOException {
         return new FileInputStream(this.file);
     }
 
     public void writeTo(final OutputStream out) throws IOException {
         Args.notNull(out, "Output stream");
         final InputStream in = new FileInputStream(this.file);
         try {
             final 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 long getContentLength() {
         return this.file.length();
     }
 
     public String getFilename() {
         return filename;
     }
 
     public File getFile() {
         return this.file;
     }
 
 }