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comparison: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/IdentityInputStream.java
mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/io/IdentityInputStream.java
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| -1:000000000000 | 0:f62e8d6ae30a |
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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 ch.boye.httpclientandroidlib.impl.io; | |
| 29 | |
| 30 import java.io.IOException; | |
| 31 import java.io.InputStream; | |
| 32 | |
| 33 import ch.boye.httpclientandroidlib.io.BufferInfo; | |
| 34 import ch.boye.httpclientandroidlib.io.SessionInputBuffer; | |
| 35 | |
| 36 /** | |
| 37 * Input stream that reads data without any transformation. The end of the | |
| 38 * content entity is demarcated by closing the underlying connection | |
| 39 * (EOF condition). Entities transferred using this input stream can be of | |
| 40 * unlimited length. | |
| 41 * <p> | |
| 42 * Note that this class NEVER closes the underlying stream, even when close | |
| 43 * gets called. Instead, it will read until the end of the stream (until | |
| 44 * <code>-1</code> is returned). | |
| 45 * | |
| 46 * @since 4.0 | |
| 47 */ | |
| 48 public class IdentityInputStream extends InputStream { | |
| 49 | |
| 50 private final SessionInputBuffer in; | |
| 51 | |
| 52 private boolean closed = false; | |
| 53 | |
| 54 /** | |
| 55 * Wraps session input stream and reads input until the the end of stream. | |
| 56 * | |
| 57 * @param in The session input buffer | |
| 58 */ | |
| 59 public IdentityInputStream(final SessionInputBuffer in) { | |
| 60 super(); | |
| 61 if (in == null) { | |
| 62 throw new IllegalArgumentException("Session input buffer may not be null"); | |
| 63 } | |
| 64 this.in = in; | |
| 65 } | |
| 66 | |
| 67 public int available() throws IOException { | |
| 68 if (this.in instanceof BufferInfo) { | |
| 69 return ((BufferInfo) this.in).length(); | |
| 70 } else { | |
| 71 return 0; | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 public void close() throws IOException { | |
| 76 this.closed = true; | |
| 77 } | |
| 78 | |
| 79 public int read() throws IOException { | |
| 80 if (this.closed) { | |
| 81 return -1; | |
| 82 } else { | |
| 83 return this.in.read(); | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 public int read(final byte[] b, int off, int len) throws IOException { | |
| 88 if (this.closed) { | |
| 89 return -1; | |
| 90 } else { | |
| 91 return this.in.read(b, off, len); | |
| 92 } | |
| 93 } | |
| 94 | |
| 95 } |
