/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ZipUtilities.h"
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#include <nativehelper/JNIHelp.h>
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#include "JniException.h"
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void throwExceptionForZlibError(JNIEnv* env, const char* exceptionClassName, int error,
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NativeZipStream* stream) {
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if (error == Z_MEM_ERROR) {
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jniThrowOutOfMemoryError(env, NULL);
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} else if (stream != NULL && stream->stream.msg != NULL) {
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jniThrowException(env, exceptionClassName, stream->stream.msg);
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} else {
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jniThrowException(env, exceptionClassName, zError(error));
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}
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}
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NativeZipStream::NativeZipStream() : inCap(0), totalIn(0), totalOut(0) {
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// Let zlib use its default allocator.
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stream.opaque = Z_NULL;
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stream.zalloc = Z_NULL;
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stream.zfree = Z_NULL;
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}
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NativeZipStream::~NativeZipStream() {
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}
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void NativeZipStream::setDictionary(JNIEnv* env, jbyteArray javaDictionary, int off, int len,
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bool inflate) {
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std::unique_ptr<jbyte[]> dictionaryBytes(new jbyte[len]);
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if (dictionaryBytes.get() == NULL) {
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jniThrowOutOfMemoryError(env, NULL);
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return;
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}
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env->GetByteArrayRegion(javaDictionary, off, len, &dictionaryBytes[0]);
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const Bytef* dictionary = reinterpret_cast<const Bytef*>(&dictionaryBytes[0]);
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int err;
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if (inflate) {
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err = inflateSetDictionary(&stream, dictionary, len);
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} else {
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err = deflateSetDictionary(&stream, dictionary, len);
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}
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if (err != Z_OK) {
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throwExceptionForZlibError(env, "java/lang/IllegalArgumentException", err, NULL);
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return;
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}
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mDict.reset(dictionaryBytes.release());
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}
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void NativeZipStream::setInput(JNIEnv* env, jbyteArray buf, jint off, jint len) {
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input.reset(new jbyte[len]);
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if (input.get() == NULL) {
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inCap = 0;
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jniThrowOutOfMemoryError(env, NULL);
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return;
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}
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inCap = len;
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if (buf != NULL) {
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env->GetByteArrayRegion(buf, off, len, &input[0]);
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}
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stream.next_in = reinterpret_cast<Bytef*>(&input[0]);
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stream.avail_in = len;
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}
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NativeZipStream* toNativeZipStream(jlong address) {
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return reinterpret_cast<NativeZipStream*>(static_cast<uintptr_t>(address));
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}
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