mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/entity/DecompressingEntity.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.

michael@0 1 /*
michael@0 2 * ====================================================================
michael@0 3 *
michael@0 4 * Licensed to the Apache Software Foundation (ASF) under one or more
michael@0 5 * contributor license agreements. See the NOTICE file distributed with
michael@0 6 * this work for additional information regarding copyright ownership.
michael@0 7 * The ASF licenses this file to You under the Apache License, Version 2.0
michael@0 8 * (the "License"); you may not use this file except in compliance with
michael@0 9 * the License. You may obtain a copy of the License at
michael@0 10 *
michael@0 11 * http://www.apache.org/licenses/LICENSE-2.0
michael@0 12 *
michael@0 13 * Unless required by applicable law or agreed to in writing, software
michael@0 14 * distributed under the License is distributed on an "AS IS" BASIS,
michael@0 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0 16 * See the License for the specific language governing permissions and
michael@0 17 * limitations under the License.
michael@0 18 * ====================================================================
michael@0 19 *
michael@0 20 * This software consists of voluntary contributions made by many
michael@0 21 * individuals on behalf of the Apache Software Foundation. For more
michael@0 22 * information on the Apache Software Foundation, please see
michael@0 23 * <http://www.apache.org/>.
michael@0 24 *
michael@0 25 */
michael@0 26 package ch.boye.httpclientandroidlib.client.entity;
michael@0 27
michael@0 28 import java.io.IOException;
michael@0 29 import java.io.InputStream;
michael@0 30 import java.io.OutputStream;
michael@0 31
michael@0 32 import ch.boye.httpclientandroidlib.HttpEntity;
michael@0 33 import ch.boye.httpclientandroidlib.entity.HttpEntityWrapper;
michael@0 34
michael@0 35 /**
michael@0 36 * Common base class for decompressing {@link HttpEntity} implementations.
michael@0 37 *
michael@0 38 * @since 4.1
michael@0 39 */
michael@0 40 abstract class DecompressingEntity extends HttpEntityWrapper {
michael@0 41
michael@0 42 /**
michael@0 43 * Default buffer size.
michael@0 44 */
michael@0 45 private static final int BUFFER_SIZE = 1024 * 2;
michael@0 46
michael@0 47 /**
michael@0 48 * DecompressingEntities are not repeatable, so they will return the same
michael@0 49 * InputStream instance when {@link #getContent()} is called.
michael@0 50 */
michael@0 51 private InputStream content;
michael@0 52
michael@0 53 /**
michael@0 54 * Creates a new {@link DecompressingEntity}.
michael@0 55 *
michael@0 56 * @param wrapped
michael@0 57 * the non-null {@link HttpEntity} to be wrapped
michael@0 58 */
michael@0 59 public DecompressingEntity(final HttpEntity wrapped) {
michael@0 60 super(wrapped);
michael@0 61 }
michael@0 62
michael@0 63 abstract InputStream getDecompressingInputStream(final InputStream wrapped) throws IOException;
michael@0 64
michael@0 65 /**
michael@0 66 * {@inheritDoc}
michael@0 67 */
michael@0 68 @Override
michael@0 69 public InputStream getContent() throws IOException {
michael@0 70 if (wrappedEntity.isStreaming()) {
michael@0 71 if (content == null) {
michael@0 72 content = getDecompressingInputStream(wrappedEntity.getContent());
michael@0 73 }
michael@0 74 return content;
michael@0 75 } else {
michael@0 76 return getDecompressingInputStream(wrappedEntity.getContent());
michael@0 77 }
michael@0 78 }
michael@0 79
michael@0 80 /**
michael@0 81 * {@inheritDoc}
michael@0 82 */
michael@0 83 @Override
michael@0 84 public void writeTo(OutputStream outstream) throws IOException {
michael@0 85 if (outstream == null) {
michael@0 86 throw new IllegalArgumentException("Output stream may not be null");
michael@0 87 }
michael@0 88 InputStream instream = getContent();
michael@0 89 try {
michael@0 90 byte[] buffer = new byte[BUFFER_SIZE];
michael@0 91
michael@0 92 int l;
michael@0 93
michael@0 94 while ((l = instream.read(buffer)) != -1) {
michael@0 95 outstream.write(buffer, 0, l);
michael@0 96 }
michael@0 97 } finally {
michael@0 98 instream.close();
michael@0 99 }
michael@0 100 }
michael@0 101
michael@0 102 }

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