| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "DeflaterOutputStream.h" |
| |
| using namespace decaf; |
| using namespace decaf::io; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| using namespace decaf::util; |
| using namespace decaf::util::zip; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| const std::size_t DeflaterOutputStream::DEFAULT_BUFFER_SIZE = 512; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| DeflaterOutputStream::DeflaterOutputStream(OutputStream* outputStream, bool own) : |
| FilterOutputStream(outputStream, own), deflater(new Deflater()), buf(), ownDeflater(true), isDone(false) { |
| |
| this->buf.resize(DEFAULT_BUFFER_SIZE); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| DeflaterOutputStream::DeflaterOutputStream(OutputStream* outputStream, Deflater* deflater, bool own, bool ownDeflater) : |
| FilterOutputStream(outputStream, own), deflater(deflater), buf(), ownDeflater(ownDeflater), isDone(false) { |
| |
| if (deflater == NULL) { |
| throw NullPointerException( |
| __FILE__, __LINE__, "Deflater passed was NULL."); |
| } |
| |
| this->buf.resize(DEFAULT_BUFFER_SIZE); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| DeflaterOutputStream::DeflaterOutputStream(OutputStream* outputStream, Deflater* deflater, int bufferSize, bool own, bool ownDeflater) : |
| FilterOutputStream(outputStream, own), deflater(deflater), buf(), ownDeflater(ownDeflater), isDone(false) { |
| |
| if (deflater == NULL) { |
| throw NullPointerException( |
| __FILE__, __LINE__, "Deflater passed was NULL."); |
| } |
| |
| if (bufferSize == 0) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, "Cannot create a zero sized buffer."); |
| } |
| |
| this->buf.resize(bufferSize); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| DeflaterOutputStream::~DeflaterOutputStream() { |
| try { |
| |
| this->close(); |
| |
| if (ownDeflater) { |
| delete this->deflater; |
| } |
| } |
| DECAF_CATCH_NOTHROW(Exception) |
| DECAF_CATCHALL_NOTHROW()} |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void DeflaterOutputStream::finish() { |
| |
| try { |
| |
| if (isDone) { |
| return; |
| } |
| |
| int result; |
| this->deflater->finish(); |
| |
| while (!this->deflater->finished()) { |
| |
| if (this->deflater->needsInput()) { |
| this->deflater->setInput(buf, 0, 0); |
| } |
| result = this->deflater->deflate(&buf[0], (int) buf.size(), 0, (int) buf.size()); |
| this->outputStream->write(&buf[0], (int) buf.size(), 0, result); |
| } |
| |
| this->isDone = true; |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void DeflaterOutputStream::close() { |
| |
| try { |
| |
| if (!this->deflater->finished()) { |
| this->finish(); |
| } |
| this->deflater->end(); |
| FilterOutputStream::close(); |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void DeflaterOutputStream::doWriteByte(unsigned char value) { |
| |
| try { |
| this->doWriteArrayBounded(&value, 1, 0, 1); |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void DeflaterOutputStream::doWriteArrayBounded(const unsigned char* buffer, int size, int offset, int length) { |
| |
| try { |
| |
| if (isDone) { |
| throw IOException( |
| __FILE__, __LINE__, "Finish was already called on this DeflaterOutputStream."); |
| } |
| |
| if (buffer == NULL) { |
| throw NullPointerException( |
| __FILE__, __LINE__, "Buffer passed was NULL."); |
| } |
| |
| if (size < 0) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "size parameter out of Bounds: %d.", size); |
| } |
| |
| if (offset > size || offset < 0) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "offset parameter out of Bounds: %d.", offset); |
| } |
| |
| if (length < 0 || length > size - offset) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "length parameter out of Bounds: %d.", length); |
| } |
| |
| if (length == 0) { |
| return; |
| } |
| |
| if (isClosed()) { |
| throw IOException( |
| __FILE__, __LINE__, "The stream is already closed."); |
| } |
| |
| if (!this->deflater->needsInput()) { |
| throw IOException( |
| __FILE__, __LINE__, "The Deflater is in an Invalid State."); |
| } |
| |
| this->deflater->setInput(buffer, size, offset, length); |
| |
| this->deflate(); |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCH_RETHROW(NullPointerException) |
| DECAF_CATCH_RETHROW(IndexOutOfBoundsException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void DeflaterOutputStream::deflate() { |
| |
| try { |
| |
| int result; |
| do { |
| result = this->deflater->deflate(&buf[0], (int) buf.size(), 0, (int) buf.size()); |
| this->outputStream->write(&buf[0], (int) buf.size(), 0, result); |
| } while (!this->deflater->needsInput()); |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |