content: /*
   * Copyright (c) 2013. wyouflf (wyouflf@gmail.com)
   *
   * 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 com.lidroid.xutils.http.client.multipart.content;
  
  import com.lidroid.xutils.http.client.multipart.MIME;
  
  import java.io.IOException;
  import java.io.OutputStream;
  
  /**
   * Body part that is built using a byte array containing a file.
   *
   * @since 4.1
   */
  public class ByteArrayBody extends AbstractContentBody {
  
      /**
       * The contents of the file contained in this part.
       */
      private final byte[] data;
  
      /**
       * The name of the file contained in this part.
       */
      private final String filename;
  
      /**
       * Creates a new ByteArrayBody.
       *
       * @param data     The contents of the file contained in this part.
       * @param mimeType The mime type of the file contained in this part.
       * @param filename The name of the file contained in this part.
       */
      public ByteArrayBody(final byte[] data, final String mimeType, final String filename) {
          super(mimeType);
          if (data == null) {
              throw new IllegalArgumentException("byte[] may not be null");
          }
          this.data = data;
          this.filename = filename;
      }
  
      /**
       * Creates a new ByteArrayBody.
       *
       * @param data     The contents of the file contained in this part.
       * @param filename The name of the file contained in this part.
       */
      public ByteArrayBody(final byte[] data, final String filename) {
          this(data, "application/octet-stream", filename);
      }
  
      public String getFilename() {
          return filename;
      }
  
      public void writeTo(final OutputStream out) throws IOException {
          out.write(data);
          callBackInfo.pos += data.length;
          callBackInfo.doCallBack(false);
      }
  
      public String getCharset() {
          return null;
      }
  
      public String getTransferEncoding() {
          return MIME.ENC_BINARY;
      }
  
      public long getContentLength() {
          return data.length;
      }
  
  }
  