| /* |
| * 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 "ByteBuffer.h" |
| #include "decaf/internal/nio/BufferFactory.h" |
| #include "decaf/lang/Short.h" |
| #include "decaf/lang/Integer.h" |
| #include "decaf/lang/Long.h" |
| #include "decaf/lang/Float.h" |
| #include "decaf/lang/Double.h" |
| |
| using namespace std; |
| using namespace decaf; |
| using namespace decaf::nio; |
| using namespace decaf::internal::nio; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer::ByteBuffer( int capacity ) : Buffer( capacity ) { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer* ByteBuffer::allocate( int capacity ) { |
| |
| try{ |
| return BufferFactory::createByteBuffer( capacity ); |
| } |
| DECAF_CATCH_RETHROW( IllegalArgumentException ) |
| DECAF_CATCHALL_THROW( IllegalArgumentException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer* ByteBuffer::wrap( unsigned char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "ByteBuffer::wrap - Passed Buffer is Null."); |
| } |
| |
| if( size < 0 || offset < 0 || length < 0 || offset + length > size ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Invalid array access parameters passed." ); |
| } |
| |
| return BufferFactory::createByteBuffer( buffer, size, offset, length ); |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, NullPointerException ) |
| DECAF_CATCHALL_THROW( NullPointerException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer* ByteBuffer::wrap( std::vector<unsigned char>& buffer ) { |
| |
| try{ |
| |
| if( buffer.empty() ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "ByteBuffer::wrap - Passed Buffer is Empty."); |
| } |
| |
| return BufferFactory::createByteBuffer( &buffer[0], (int)buffer.size(), 0, (int)buffer.size() ); |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, NullPointerException ) |
| DECAF_CATCHALL_THROW( NullPointerException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer& ByteBuffer::get( std::vector<unsigned char> buffer ) { |
| |
| try{ |
| |
| if( !buffer.empty() ) { |
| this->get( &buffer[0], (int)buffer.size(), 0, (int)buffer.size() ); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferUnderflowException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferUnderflowException ) |
| DECAF_CATCHALL_THROW( BufferUnderflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer& ByteBuffer::get( unsigned char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( length == 0 ) { |
| return *this; |
| } |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "ByteBuffer::get - Passed Buffer is Null."); |
| } |
| |
| if( size < 0 || offset < 0 || length < 0 || offset + length > size ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Arguments violate array bounds." ); |
| } |
| |
| if( length > this->remaining() ) { |
| throw BufferUnderflowException( |
| __FILE__, __LINE__, |
| "ByteBuffer::get - Not Enough Data to Fill Request."); |
| } |
| |
| // read length bytes starting from the offset |
| for( int ix = 0; ix < length; ++ix ) { |
| buffer[ix + offset] = this->get(); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferUnderflowException ) |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferUnderflowException ) |
| DECAF_CATCHALL_THROW( BufferUnderflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer& ByteBuffer::put( ByteBuffer& src ) { |
| |
| try{ |
| |
| if( this == &src ) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - Can't put Self" ); |
| } |
| |
| if( this->isReadOnly() ) { |
| throw ReadOnlyBufferException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - This buffer is Read Only."); |
| } |
| |
| if( src.remaining() > this->remaining() ) { |
| throw BufferOverflowException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - Not enough space remaining to put src." ); |
| } |
| |
| while( src.hasRemaining() ) { |
| this->put( src.get() ); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_RETHROW( IllegalArgumentException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer& ByteBuffer::put( const unsigned char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( length == 0 ) { |
| return *this; |
| } |
| |
| if( this->isReadOnly() ) { |
| throw ReadOnlyBufferException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - This buffer is Read Only."); |
| } |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - Passed Buffer is Null."); |
| } |
| |
| if( size < 0 || offset < 0 || length < 0 || offset + length > size ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Arguments violate array bounds." ); |
| } |
| |
| if( length > this->remaining() ) { |
| throw BufferOverflowException( |
| __FILE__, __LINE__, |
| "ByteBuffer::put - Not Enough space to store requested Data."); |
| } |
| |
| // read length bytes starting from the offset |
| for( int ix = 0; ix < length; ++ix ) { |
| this->put( buffer[ix + offset] ); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ByteBuffer& ByteBuffer::put( std::vector<unsigned char>& buffer ) { |
| |
| try{ |
| |
| if( !buffer.empty() ) { |
| this->put( &buffer[0], (int)buffer.size(), 0, (int)buffer.size() ); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int ByteBuffer::compareTo( const ByteBuffer& value ) const { |
| |
| try{ |
| |
| int compareRemaining = |
| ( remaining() < value.remaining() ) ? |
| remaining() : value.remaining(); |
| |
| int thisPos = this->position(); |
| int otherPos = value.position(); |
| |
| unsigned char thisByte, otherByte = 0; |
| |
| while( compareRemaining > 0 ) { |
| thisByte = this->get( thisPos ); |
| otherByte = value.get( otherPos ); |
| |
| if( thisByte != otherByte ) { |
| return thisByte < otherByte ? -1 : 1; |
| } |
| |
| thisPos++; |
| otherPos++; |
| compareRemaining--; |
| } |
| |
| return (int)( remaining() - value.remaining() ); |
| } |
| DECAF_CATCH_RETHROW( Exception ) |
| DECAF_CATCHALL_THROW( Exception ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool ByteBuffer::equals( const ByteBuffer& value ) const { |
| |
| try{ |
| |
| if( this->remaining() != value.remaining()) { |
| return false; |
| } |
| |
| int myPosition = this->position(); |
| int otherPosition = value.position(); |
| |
| while( myPosition < this->limit() ) { |
| if( get( myPosition++ ) != value.get( otherPosition++ ) ) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| DECAF_CATCH_RETHROW( Exception ) |
| DECAF_CATCHALL_THROW( Exception ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool ByteBuffer::operator==( const ByteBuffer& value ) const { |
| return this->equals( value ); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool ByteBuffer::operator<( const ByteBuffer& value ) const { |
| return this->compareTo( value ) == -1; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string ByteBuffer::toString() const { |
| |
| std::ostringstream stream; |
| stream << "ByteBuffer"; |
| stream << ", status: capacity=" << this->capacity(); |
| stream << " position=" << this->position(); |
| stream << " limit=" << this->limit(); |
| return stream.str(); |
| } |