The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* //device/libs/android_runtime/android_util_StringBlock.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 8 | ** |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 10 | ** |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #define LOG_TAG "StringBlock" |
| 19 | |
| 20 | #include "jni.h" |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 21 | #include "JNIHelp.h" |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 22 | #include <utils/misc.h> |
| 23 | #include <android_runtime/AndroidRuntime.h> |
| 24 | #include <utils/Log.h> |
| 25 | |
| 26 | #include <utils/ResourceTypes.h> |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | |
| 30 | namespace android { |
| 31 | |
| 32 | // ---------------------------------------------------------------------------- |
| 33 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 34 | static jint android_content_StringBlock_nativeCreate(JNIEnv* env, jobject clazz, |
| 35 | jbyteArray bArray, |
| 36 | jint off, jint len) |
| 37 | { |
| 38 | if (bArray == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 39 | jniThrowNullPointerException(env, NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | jsize bLen = env->GetArrayLength(bArray); |
| 44 | if (off < 0 || off >= bLen || len < 0 || len > bLen || (off+len) > bLen) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 45 | jniThrowException(env, "java/lang/IndexOutOfBoundsException", NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | jbyte* b = env->GetByteArrayElements(bArray, NULL); |
| 50 | ResStringPool* osb = new ResStringPool(b+off, len, true); |
| 51 | env->ReleaseByteArrayElements(bArray, b, 0); |
| 52 | |
| 53 | if (osb == NULL || osb->getError() != NO_ERROR) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 54 | jniThrowException(env, "java/lang/IllegalArgumentException", NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | return (jint)osb; |
| 59 | } |
| 60 | |
| 61 | static jint android_content_StringBlock_nativeGetSize(JNIEnv* env, jobject clazz, |
| 62 | jint token) |
| 63 | { |
| 64 | ResStringPool* osb = (ResStringPool*)token; |
| 65 | if (osb == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 66 | jniThrowNullPointerException(env, NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | return osb->size(); |
| 71 | } |
| 72 | |
| 73 | static jstring android_content_StringBlock_nativeGetString(JNIEnv* env, jobject clazz, |
| 74 | jint token, jint idx) |
| 75 | { |
| 76 | ResStringPool* osb = (ResStringPool*)token; |
| 77 | if (osb == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 78 | jniThrowNullPointerException(env, NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | size_t len; |
Kenny Root | 780d2a1 | 2010-02-22 22:36:26 -0800 | [diff] [blame] | 83 | const char* str8 = osb->string8At(idx, &len); |
| 84 | if (str8 != NULL) { |
| 85 | return env->NewStringUTF(str8); |
| 86 | } |
| 87 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 88 | const char16_t* str = osb->stringAt(idx, &len); |
| 89 | if (str == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 90 | jniThrowException(env, "java/lang/IndexOutOfBoundsException", NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | return env->NewString((const jchar*)str, len); |
| 95 | } |
| 96 | |
| 97 | static jintArray android_content_StringBlock_nativeGetStyle(JNIEnv* env, jobject clazz, |
| 98 | jint token, jint idx) |
| 99 | { |
| 100 | ResStringPool* osb = (ResStringPool*)token; |
| 101 | if (osb == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 102 | jniThrowNullPointerException(env, NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 103 | return NULL; |
| 104 | } |
| 105 | |
| 106 | const ResStringPool_span* spans = osb->styleAt(idx); |
| 107 | if (spans == NULL) { |
| 108 | return NULL; |
| 109 | } |
| 110 | |
| 111 | const ResStringPool_span* pos = spans; |
| 112 | int num = 0; |
| 113 | while (pos->name.index != ResStringPool_span::END) { |
| 114 | num++; |
| 115 | pos++; |
| 116 | } |
| 117 | |
| 118 | if (num == 0) { |
| 119 | return NULL; |
| 120 | } |
| 121 | |
| 122 | jintArray array = env->NewIntArray((num*sizeof(ResStringPool_span))/sizeof(jint)); |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 123 | if (array == NULL) { // NewIntArray already threw OutOfMemoryError. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 124 | return NULL; |
| 125 | } |
| 126 | |
| 127 | num = 0; |
| 128 | static const int numInts = sizeof(ResStringPool_span)/sizeof(jint); |
| 129 | while (spans->name.index != ResStringPool_span::END) { |
| 130 | env->SetIntArrayRegion(array, |
| 131 | num*numInts, numInts, |
| 132 | (jint*)spans); |
| 133 | spans++; |
| 134 | num++; |
| 135 | } |
| 136 | |
| 137 | return array; |
| 138 | } |
| 139 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 140 | static void android_content_StringBlock_nativeDestroy(JNIEnv* env, jobject clazz, |
| 141 | jint token) |
| 142 | { |
| 143 | ResStringPool* osb = (ResStringPool*)token; |
| 144 | if (osb == NULL) { |
Elliott Hughes | 8451b25 | 2011-04-07 19:17:57 -0700 | [diff] [blame] | 145 | jniThrowNullPointerException(env, NULL); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 146 | return; |
| 147 | } |
| 148 | |
| 149 | delete osb; |
| 150 | } |
| 151 | |
| 152 | // ---------------------------------------------------------------------------- |
| 153 | |
| 154 | /* |
| 155 | * JNI registration. |
| 156 | */ |
| 157 | static JNINativeMethod gStringBlockMethods[] = { |
| 158 | /* name, signature, funcPtr */ |
| 159 | { "nativeCreate", "([BII)I", |
| 160 | (void*) android_content_StringBlock_nativeCreate }, |
| 161 | { "nativeGetSize", "(I)I", |
| 162 | (void*) android_content_StringBlock_nativeGetSize }, |
| 163 | { "nativeGetString", "(II)Ljava/lang/String;", |
| 164 | (void*) android_content_StringBlock_nativeGetString }, |
| 165 | { "nativeGetStyle", "(II)[I", |
| 166 | (void*) android_content_StringBlock_nativeGetStyle }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 167 | { "nativeDestroy", "(I)V", |
| 168 | (void*) android_content_StringBlock_nativeDestroy }, |
| 169 | }; |
| 170 | |
| 171 | int register_android_content_StringBlock(JNIEnv* env) |
| 172 | { |
| 173 | return AndroidRuntime::registerNativeMethods(env, |
| 174 | "android/content/res/StringBlock", gStringBlockMethods, NELEM(gStringBlockMethods)); |
| 175 | } |
| 176 | |
| 177 | }; // namespace android |