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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  
28  package org.apache.http.client.fluent;
29  
30  import java.io.File;
31  import java.io.FileInputStream;
32  import java.io.IOException;
33  import java.io.InputStream;
34  import java.io.OutputStream;
35  
36  import org.apache.http.entity.AbstractHttpEntity;
37  import org.apache.http.entity.ContentType;
38  import org.apache.http.util.Args;
39  
40  class InternalFileEntity extends AbstractHttpEntity implements Cloneable {
41  
42      private final File file;
43  
44      public InternalFileEntity(final File file, final ContentType contentType) {
45          super();
46          this.file = Args.notNull(file, "File");
47          if (contentType != null) {
48              setContentType(contentType.toString());
49          }
50      }
51  
52      @Override
53      public boolean isRepeatable() {
54          return true;
55      }
56  
57      @Override
58      public long getContentLength() {
59          return this.file.length();
60      }
61  
62      @Override
63      public InputStream getContent() throws IOException {
64          return new FileInputStream(this.file);
65      }
66  
67      @Override
68      public void writeTo(final OutputStream outstream) throws IOException {
69          Args.notNull(outstream, "Output stream");
70          final InputStream instream = new FileInputStream(this.file);
71          try {
72              final byte[] tmp = new byte[4096];
73              int l;
74              while ((l = instream.read(tmp)) != -1) {
75                  outstream.write(tmp, 0, l);
76              }
77              outstream.flush();
78          } finally {
79              instream.close();
80          }
81      }
82  
83      @Override
84      public boolean isStreaming() {
85          return false;
86      }
87  
88  }