CharArrayBuffer.h

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/*
 * 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.
 */

#ifndef _DECAF_INTERNAL_NIO_CHARARRAYBUFFER_H_
#define _DECAF_INTERNAL_NIO_CHARARRAYBUFFER_H_

#include <decaf/nio/CharBuffer.h>
#include <decaf/lang/exceptions/NullPointerException.h>
#include <decaf/lang/exceptions/IndexOutOfBoundsException.h>
#include <decaf/nio/BufferUnderflowException.h>
#include <decaf/nio/BufferOverflowException.h>
#include <decaf/nio/ReadOnlyBufferException.h>
#include <decaf/internal/util/ByteArrayAdapter.h>

#include <decaf/lang/Pointer.h>

namespace decaf{
namespace internal{
namespace nio{

    using decaf::internal::util::ByteArrayAdapter;

    class DECAF_API CharArrayBuffer : public decaf::nio::CharBuffer {
    protected:

        // The reference array object that backs this buffer.
        decaf::lang::Pointer<ByteArrayAdapter> _array;

        // Offset into the array that we are to start from
        int offset;

        // The length of the sub-array, or limit
        int length;

        // Read / Write flag
        bool readOnly;

    public:

        CharArrayBuffer( int size, bool readOnly = false );

        CharArrayBuffer( char* array, int size, int offset, int length, bool readOnly = false );

        CharArrayBuffer( const decaf::lang::Pointer<ByteArrayAdapter>& array,
                         int offset, int length, bool readOnly = false );

        CharArrayBuffer( const CharArrayBuffer& other );

        virtual ~CharArrayBuffer();

    public:  // Overrides

        virtual char* array();

        virtual int arrayOffset();

        virtual CharBuffer* asReadOnlyBuffer() const;

        virtual CharBuffer& compact();

        virtual CharBuffer* duplicate();

        virtual char get();

        virtual char get( int index ) const;

        virtual bool hasArray() const { return true; }

        virtual bool isReadOnly() const {
            return this->readOnly;
        }

        virtual CharBuffer& put( char value );

        virtual CharBuffer& put( int index, char value );

        virtual CharBuffer* slice() const;

        virtual lang::CharSequence* subSequence( int start, int end ) const;

    protected:

        virtual void setReadOnly( bool value ) {
            this->readOnly = value;
        }

    };

}}}

#endif /*_DECAF_INTERNAL_NIO_CHARARRAYBUFFER_H_*/