The Tor Browser / file comparison
comparison: mobile/android/base/mozglue/NativeZip.java
mobile/android/base/mozglue/NativeZip.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:43911f736834 |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.mozglue; | |
| 7 | |
| 8 import org.mozilla.gecko.mozglue.generatorannotations.WrapElementForJNI; | |
| 9 | |
| 10 import java.io.InputStream; | |
| 11 import java.nio.ByteBuffer; | |
| 12 import java.util.zip.Inflater; | |
| 13 import java.util.zip.InflaterInputStream; | |
| 14 | |
| 15 public class NativeZip implements NativeReference { | |
| 16 private static final int DEFLATE = 8; | |
| 17 private static final int STORE = 0; | |
| 18 | |
| 19 private volatile long mObj; | |
| 20 private InputStream mInput; | |
| 21 | |
| 22 public NativeZip(String path) { | |
| 23 mObj = getZip(path); | |
| 24 mInput = null; | |
| 25 } | |
| 26 | |
| 27 public NativeZip(InputStream input) { | |
| 28 if (!(input instanceof ByteBufferInputStream)) { | |
| 29 throw new IllegalArgumentException("Got " + input.getClass() | |
| 30 + ", but expected ByteBufferInputStream!"); | |
| 31 } | |
| 32 ByteBufferInputStream bbinput = (ByteBufferInputStream)input; | |
| 33 mObj = getZipFromByteBuffer(bbinput.mBuf); | |
| 34 mInput = input; | |
| 35 } | |
| 36 | |
| 37 @Override | |
| 38 public void finalize() { | |
| 39 release(); | |
| 40 } | |
| 41 | |
| 42 public void close() { | |
| 43 release(); | |
| 44 } | |
| 45 | |
| 46 @Override | |
| 47 public void release() { | |
| 48 if (mObj != 0) { | |
| 49 _release(mObj); | |
| 50 mObj = 0; | |
| 51 } | |
| 52 mInput = null; | |
| 53 } | |
| 54 | |
| 55 @Override | |
| 56 public boolean isReleased() { | |
| 57 return (mObj == 0); | |
| 58 } | |
| 59 | |
| 60 public InputStream getInputStream(String path) { | |
| 61 if (isReleased()) { | |
| 62 throw new IllegalStateException("Can't get path \"" + path | |
| 63 + "\" because NativeZip is closed!"); | |
| 64 } | |
| 65 return _getInputStream(mObj, path); | |
| 66 } | |
| 67 | |
| 68 private static native long getZip(String path); | |
| 69 private static native long getZipFromByteBuffer(ByteBuffer buffer); | |
| 70 private static native void _release(long obj); | |
| 71 private native InputStream _getInputStream(long obj, String path); | |
| 72 | |
| 73 @WrapElementForJNI | |
| 74 private InputStream createInputStream(ByteBuffer buffer, int compression) { | |
| 75 if (compression != STORE && compression != DEFLATE) { | |
| 76 throw new IllegalArgumentException("Unexpected compression: " + compression); | |
| 77 } | |
| 78 | |
| 79 InputStream input = new ByteBufferInputStream(buffer, this); | |
| 80 if (compression == DEFLATE) { | |
| 81 Inflater inflater = new Inflater(true); | |
| 82 input = new InflaterInputStream(input, inflater); | |
| 83 } | |
| 84 | |
| 85 return input; | |
| 86 } | |
| 87 } |
