mobile/android/thirdparty/ch/boye/httpclientandroidlib/entity/InputStreamEntity.java

Wed, 31 Dec 2014 07:22:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:22:50 +0100
branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
permissions
-rw-r--r--

Correct previous dual key logic pending first delivery installment.

     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  */
    28 package ch.boye.httpclientandroidlib.entity;
    30 import java.io.IOException;
    31 import java.io.InputStream;
    32 import java.io.OutputStream;
    34 /**
    35  * A streamed, non-repeatable entity that obtains its content from
    36  * an {@link InputStream}.
    37  *
    38  * @since 4.0
    39  */
    40 public class InputStreamEntity extends AbstractHttpEntity {
    42     private final static int BUFFER_SIZE = 2048;
    44     private final InputStream content;
    45     private final long length;
    47     public InputStreamEntity(final InputStream instream, long length) {
    48         super();
    49         if (instream == null) {
    50             throw new IllegalArgumentException("Source input stream may not be null");
    51         }
    52         this.content = instream;
    53         this.length = length;
    54     }
    56     public boolean isRepeatable() {
    57         return false;
    58     }
    60     public long getContentLength() {
    61         return this.length;
    62     }
    64     public InputStream getContent() throws IOException {
    65         return this.content;
    66     }
    68     public void writeTo(final OutputStream outstream) throws IOException {
    69         if (outstream == null) {
    70             throw new IllegalArgumentException("Output stream may not be null");
    71         }
    72         InputStream instream = this.content;
    73         try {
    74             byte[] buffer = new byte[BUFFER_SIZE];
    75             int l;
    76             if (this.length < 0) {
    77                 // consume until EOF
    78                 while ((l = instream.read(buffer)) != -1) {
    79                     outstream.write(buffer, 0, l);
    80                 }
    81             } else {
    82                 // consume no more than length
    83                 long remaining = this.length;
    84                 while (remaining > 0) {
    85                     l = instream.read(buffer, 0, (int)Math.min(BUFFER_SIZE, remaining));
    86                     if (l == -1) {
    87                         break;
    88                     }
    89                     outstream.write(buffer, 0, l);
    90                     remaining -= l;
    91                 }
    92             }
    93         } finally {
    94             instream.close();
    95         }
    96     }
    98     public boolean isStreaming() {
    99         return true;
   100     }
   102     /**
   103      * @deprecated Either use {@link #getContent()} and call {@link java.io.InputStream#close()} on that;
   104      * otherwise call {@link #writeTo(OutputStream)} which is required to free the resources.
   105      */
   106     public void consumeContent() throws IOException {
   107         // If the input stream is from a connection, closing it will read to
   108         // the end of the content. Otherwise, we don't care what it does.
   109         this.content.close();
   110     }
   112 }

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