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 com.lidroid.xutils.util.IOUtils;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InterruptedIOException;
  import java.io.OutputStream;
  
  /**
   * @since 4.0
   */
  public class InputStreamBody extends AbstractContentBody {
  
      private final InputStream in;
      private final String filename;
      private long length;
  
      public InputStreamBody(final InputStream in, long length, final String filename, final String mimeType) {
          super(mimeType);
          if (in == null) {
              throw new IllegalArgumentException("Input stream may not be null");
          }
          this.in = in;
          this.filename = filename;
          this.length = length;
      }
  
      public InputStreamBody(final InputStream in, long length, final String filename) {
          this(in, length, filename, "application/octet-stream");
      }
  
      public InputStreamBody(final InputStream in, long length) {
          this(in, length, "no_name", "application/octet-stream");
      }
  
      public InputStream getInputStream() {
          return this.in;
      }
  
      public void writeTo(final OutputStream out) throws IOException {
          if (out == null) {
              throw new IllegalArgumentException("Output stream may not be null");
          }
          try {
              byte[] tmp = new byte[4096];
              int l;
              while ((l = this.in.read(tmp)) != -1) {
                  out.write(tmp, 0, l);
                  callBackInfo.pos += l;
                  if (!callBackInfo.doCallBack(false)) {
                      throw new InterruptedIOException("cancel");
                  }
              }
              out.flush();
          } finally {
              IOUtils.closeQuietly(this.in);
          }
      }
  
      public String getTransferEncoding() {
          return MIME.ENC_BINARY;
      }
  
      public String getCharset() {
          return null;
      }
  
      public long getContentLength() {
          return this.length;
      }
  
      public String getFilename() {
          return this.filename;
      }
  
  }
  