| /* |
| * 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 "CharBuffer.h" |
| #include <decaf/lang/Character.h> |
| #include <decaf/lang/Math.h> |
| #include "decaf/internal/nio/BufferFactory.h" |
| #include <memory> |
| |
| using namespace std; |
| using namespace decaf; |
| using namespace decaf::nio; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| using namespace decaf::internal::nio; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer::CharBuffer( int capacity ) : Buffer( capacity ) { |
| |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer* CharBuffer::allocate( int capacity ) { |
| |
| try{ |
| |
| if( capacity < 0 ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Capacity given was negative." ); |
| } |
| |
| return BufferFactory::createCharBuffer( capacity ); |
| } |
| DECAF_CATCH_RETHROW( Exception ) |
| DECAF_CATCHALL_THROW( Exception ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer* CharBuffer::wrap( char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "CharBuffer::wrap - Passed Buffer is Null."); |
| } |
| |
| return BufferFactory::createCharBuffer( buffer, size, offset, length ); |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, NullPointerException ) |
| DECAF_CATCHALL_THROW( NullPointerException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer* CharBuffer::wrap( std::vector<char>& buffer ) { |
| |
| try{ |
| |
| if( buffer.empty() ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "CharBuffer::wrap - Passed Buffer is Empty."); |
| } |
| |
| return BufferFactory::createCharBuffer( &buffer[0], (int)buffer.size(), 0, (int)buffer.size() ); |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, NullPointerException ) |
| DECAF_CATCHALL_THROW( NullPointerException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string CharBuffer::toString() const { |
| |
| std::string strbuf; |
| |
| for( int i = this->position(); i < this->limit(); i++ ) { |
| strbuf.append( Character::valueOf( get( i ) ).toString() ); |
| } |
| |
| return strbuf; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::append( char value ) { |
| |
| try{ |
| |
| this->put( value ); |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::append( const CharSequence* value ) { |
| |
| try{ |
| |
| if( value != NULL ) { |
| return this->put( value->toString() ); |
| } |
| |
| return this->put( "null" ); |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::append( const CharSequence* value, int start, int end ) { |
| |
| try{ |
| |
| if( value != NULL ) { |
| auto_ptr<CharSequence> temp( value->subSequence( start, end ) ); |
| this->append( temp.get() ); |
| |
| return *this; |
| } |
| |
| return this->put( "null", 4, start, end - start ); |
| } |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| char CharBuffer::charAt( int index ) const { |
| |
| try{ |
| |
| if( index < 0 ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Index given was negative." ); |
| } |
| |
| return this->get( index ); |
| } |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, IndexOutOfBoundsException ) |
| DECAF_CATCHALL_THROW( IndexOutOfBoundsException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::get( std::vector<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 ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::get( char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( length == 0 ) { |
| return *this; |
| } |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "CharBuffer::get - Passed Buffer is Null" ); |
| } |
| |
| if( size < 0 || offset < 0 || length < 0 || (long long)offset + (long long)length > (long long)size ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Arguments violate array bounds." ); |
| } |
| |
| if( length > remaining() ) { |
| throw BufferUnderflowException( |
| __FILE__, __LINE__, |
| "CharBuffer::get - Not enough data to fill length = %d", length ); |
| } |
| |
| for( int ix = 0; ix < length; ++ix ){ |
| buffer[offset + ix] = this->get(); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_RETHROW( BufferUnderflowException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferUnderflowException ) |
| DECAF_CATCHALL_THROW( BufferUnderflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::put( CharBuffer& src ) { |
| |
| try{ |
| |
| if( this == &src ) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - Can't put Self" ); |
| } |
| |
| if( this->isReadOnly() ) { |
| throw ReadOnlyBufferException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - This buffer is Read Only."); |
| } |
| |
| if( src.remaining() > this->remaining() ) { |
| throw BufferOverflowException( |
| __FILE__, __LINE__, |
| "CharBuffer::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 ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::put( const char* buffer, int size, int offset, int length ) { |
| |
| try{ |
| |
| if( length == 0 ) { |
| return *this; |
| } |
| |
| if( this->isReadOnly() ) { |
| throw ReadOnlyBufferException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - This buffer is Read Only."); |
| } |
| |
| if( buffer == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - Passed Buffer is Null."); |
| } |
| |
| if( size < 0 || offset < 0 || length < 0 || (long long)offset + (long long)length > (long long)size ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, "Arguments violate array bounds." ); |
| } |
| |
| if( length > this->remaining() ) { |
| throw BufferOverflowException( |
| __FILE__, __LINE__, |
| "CharBuffer::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( IndexOutOfBoundsException ) |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::put( std::vector<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 ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::put( std::string& src, int start, int end ) { |
| |
| try{ |
| |
| if( ( start > end ) || ( (int)src.size() < ( end - start ) ) ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - invalid start and end pos; start = %d, end = %d", |
| start, end ); |
| } |
| |
| if( start > (int)src.size() || end > (int)src.size() ) { |
| throw IndexOutOfBoundsException( |
| __FILE__, __LINE__, |
| "CharBuffer::put - invalid start and end pos; start = %d, end = %d", |
| start, end ); |
| } |
| |
| this->put( src.substr( start, end-start ) ); |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( IndexOutOfBoundsException ) |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| CharBuffer& CharBuffer::put( const std::string& src ) { |
| |
| try{ |
| |
| if( !src.empty() ) { |
| this->put( src.c_str(), (int)src.size(), 0, (int)src.size() ); |
| } |
| |
| return *this; |
| } |
| DECAF_CATCH_RETHROW( BufferOverflowException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, BufferOverflowException ) |
| DECAF_CATCHALL_THROW( BufferOverflowException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int CharBuffer::read( CharBuffer* target ) { |
| |
| try{ |
| |
| if( target == this ) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, |
| "CharBuffer::read - Cannot read to self" ); |
| } |
| |
| if( target == NULL ) { |
| throw NullPointerException( |
| __FILE__, __LINE__, |
| "CharBuffer::read - Null CharBuffer Passed" ); |
| } |
| |
| if( this->remaining() == 0 ) { |
| return target->remaining() == 0 ? 0 : -1; |
| } |
| |
| int result = (int)Math::min( (int)target->remaining(), (int)this->remaining() ); |
| std::vector<char> chars( result, 0 ); |
| get( &chars[0], result, 0, result ); |
| target->put( &chars[0], result, 0, result ); |
| |
| return result; |
| } |
| DECAF_CATCH_RETHROW( NullPointerException ) |
| DECAF_CATCH_RETHROW( IllegalArgumentException ) |
| DECAF_CATCH_RETHROW( ReadOnlyBufferException ) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, IllegalArgumentException ) |
| DECAF_CATCHALL_THROW( IllegalArgumentException ) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| int CharBuffer::compareTo( const CharBuffer& value ) const { |
| |
| int compareRemaining = Math::min( (int)remaining(), (int)value.remaining() ); |
| |
| int thisPos = this->position(); |
| int otherPos = value.position(); |
| char thisByte, otherByte; |
| |
| while( compareRemaining > 0 ) { |
| |
| thisByte = get( thisPos ); |
| otherByte = value.get( otherPos ); |
| |
| if( thisByte != otherByte ) { |
| return thisByte < otherByte ? -1 : 1; |
| } |
| |
| thisPos++; |
| otherPos++; |
| compareRemaining--; |
| } |
| |
| return (int)( remaining() - value.remaining() ); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool CharBuffer::equals( const CharBuffer& value ) const { |
| |
| if( &value == this ) { |
| return true; |
| } |
| |
| if( this->remaining() != value.remaining() ) { |
| return false; |
| } |
| |
| int myPosition = this->position(); |
| int otherPosition = value.position(); |
| bool equalSoFar = true; |
| |
| while( equalSoFar && ( myPosition < this->limit() ) ) { |
| equalSoFar = get( myPosition++ ) == value.get( otherPosition++ ); |
| } |
| |
| return equalSoFar; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool CharBuffer::operator==( const CharBuffer& value ) const { |
| return this->equals( value ); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| bool CharBuffer::operator<( const CharBuffer& value ) const { |
| return this->compareTo( value ) < 0 ? true : false; |
| } |
