| /* |
| * 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 "InputStreamReader.h" |
| |
| #include <decaf/io/InputStream.h> |
| #include <decaf/lang/exceptions/NullPointerException.h> |
| |
| using namespace decaf; |
| using namespace decaf::io; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InputStreamReader::InputStreamReader(InputStream* stream, bool own) : |
| Reader(), stream(stream), own(own), closed(false) { |
| |
| if (stream == NULL) { |
| throw NullPointerException(__FILE__, __LINE__, "The passed InputStream cannot be NULL."); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InputStreamReader::~InputStreamReader() { |
| |
| try { |
| this->close(); |
| } |
| DECAF_CATCHALL_NOTHROW() |
| |
| try { |
| if (this->own) { |
| delete this->stream; |
| } |
| |
| this->stream = NULL; |
| } |
| DECAF_CATCHALL_NOTHROW() |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void InputStreamReader::close() { |
| |
| try { |
| if (!closed) { |
| this->stream->close(); |
| this->closed = true; |
| } |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool InputStreamReader::ready() const { |
| |
| try { |
| checkClosed(); |
| try { |
| return this->stream->available() != 0; |
| } catch (IOException& ex) { |
| return false; |
| } |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int InputStreamReader::doReadArrayBounded(char* buffer, int size, int offset, int length) { |
| |
| try { |
| checkClosed(); |
| |
| if (length == 0) { |
| return 0; |
| } |
| |
| return this->stream->read((unsigned char*) buffer, size, offset, length); |
| } |
| DECAF_CATCH_RETHROW(IOException) |
| DECAF_CATCH_RETHROW(NullPointerException) |
| DECAF_CATCH_RETHROW(IndexOutOfBoundsException) |
| DECAF_CATCHALL_THROW(IOException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| void InputStreamReader::checkClosed() const { |
| if (closed) { |
| throw IOException(__FILE__, __LINE__, "This Reader is Closed"); |
| } |
| } |