1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "outputstream_wrapper.h"
18 #include "error_codes.h"
19
20 jmethodID OutputStreamWrapper::sWriteID = NULL;
21
write(int32_t length,int32_t offset)22 int32_t OutputStreamWrapper::write(int32_t length, int32_t offset) {
23 if (offset < 0 || length < 0 || (offset + length) > getBufferSize()) {
24 return J_ERROR_BAD_ARGS;
25 }
26 mEnv->ReleaseByteArrayElements(mByteArray, mBytes, JNI_COMMIT);
27 mBytes = NULL;
28 if (mEnv->ExceptionCheck()) {
29 return J_EXCEPTION;
30 }
31 if (sWriteID == NULL) {
32 LOGE("Uninitialized method ID for OutputStream write function.");
33 return J_ERROR_FATAL;
34 }
35 // Call OutputStream write with byte array.
36 mEnv->CallVoidMethod(mStream, sWriteID, mByteArray, offset, length);
37 if (mEnv->ExceptionCheck()) {
38 return J_EXCEPTION;
39 }
40 mBytes = mEnv->GetByteArrayElements(mByteArray, NULL);
41 if (mBytes == NULL || mEnv->ExceptionCheck()) {
42 return J_EXCEPTION;
43 }
44 return J_SUCCESS;
45 }
46
setWriteMethodID(jmethodID id)47 void OutputStreamWrapper::setWriteMethodID(jmethodID id) {
48 sWriteID = id;
49 }
50