src/main/decaf/io/DataInputStream.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_IO_DATAINPUTSTREAM_H_
#define _DECAF_IO_DATAINPUTSTREAM_H_

#include <decaf/io/FilterInputStream.h>
#include <decaf/io/IOException.h>
#include <decaf/io/EOFException.h>
#include <decaf/io/UTFDataFormatException.h>
#include <decaf/lang/exceptions/NullPointerException.h>
#include <decaf/lang/exceptions/IndexOutOfBoundsException.h>

namespace decaf{
namespace io{

    class DECAF_API DataInputStream: public FilterInputStream {
    private:

        // Buffer used to store bytes read from the stream while reconstructed into
        // higher order C++ primitives.
        unsigned char buffer[8];

    private:

        DataInputStream(const DataInputStream&);
        DataInputStream& operator=(const DataInputStream&);

    public:

        DataInputStream(InputStream* inputStream, bool own = false);

        virtual ~DataInputStream();

    public:
        // DataInput

        virtual bool readBoolean();

        virtual char readByte();

        virtual unsigned char readUnsignedByte();

        virtual char readChar();

        virtual double readDouble();

        virtual float readFloat();

        virtual int readInt();

        virtual long long readLong();

        virtual short readShort();

        virtual unsigned short readUnsignedShort();

        virtual std::string readString();

        virtual std::string readLine();

        virtual std::string readUTF();

        virtual void readFully(unsigned char* buffer, int size);

        virtual void readFully(unsigned char* buffer, int size, int offset, int length);

        virtual long long skipBytes(long long num);

    private:

        // Used internally to reliably get data from the underlying stream
        void readAllData(unsigned char* buffer, int length);

    };

}}

#endif /*_DECAF_IO_DATAINPUTSTREAM_H_*/

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