| /* |
| * 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_DATAOUTPUTSTREAM_H_ |
| #define _DECAF_IO_DATAOUTPUTSTREAM_H_ |
| |
| #include <decaf/io/FilterOutputStream.h> |
| #include <decaf/io/IOException.h> |
| #include <decaf/io/UTFDataFormatException.h> |
| #include <string> |
| |
| namespace decaf{ |
| namespace io{ |
| |
| /** |
| * A data output stream lets an application write primitive Java data |
| * types to an output stream in a portable way. An application can then |
| * use a data input stream to read the data back in. |
| */ |
| class DECAF_API DataOutputStream: public FilterOutputStream { |
| protected: |
| |
| // The number of bytes written to the data output stream so far. |
| long long written; |
| |
| // Buffer used for storing byte values to write to the stream |
| unsigned char buffer[8]; |
| |
| private: |
| |
| DataOutputStream(const DataOutputStream&); |
| DataOutputStream& operator=(const DataOutputStream&); |
| |
| public: |
| |
| /** |
| * Creates a new data output stream to write data to the specified |
| * underlying output stream. |
| * @param outputStream a stream to wrap with this one. |
| * @param own true if this objects owns the stream that it wraps. |
| */ |
| DataOutputStream(OutputStream* outputStream, bool own = false); |
| |
| virtual ~DataOutputStream(); |
| |
| /** |
| * Returns the current value of the counter written, the number of |
| * bytes written to this data output stream so far. If the counter |
| * overflows, it will be wrapped to decaf::lang::Long::MAX_VALUE. |
| * |
| * @return the value of the written field. |
| */ |
| virtual long long size() const { |
| return written; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeBoolean(bool value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeByte(unsigned char value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeShort(short value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeUnsignedShort(unsigned short value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeChar(char value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeInt(int value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeLong(long long value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeFloat(float value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeDouble(double value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeBytes(const std::string& value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeChars(const std::string& value); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| virtual void writeUTF(const std::string& value); |
| |
| protected: |
| |
| virtual void doWriteByte(unsigned char value); |
| |
| virtual void doWriteArrayBounded(const unsigned char* buffer, int size, int offset, int length); |
| |
| private: |
| |
| // Determine the encoded length of a string when written as modified UTF-8 |
| unsigned int countUTFLength(const std::string& value); |
| |
| }; |
| |
| }} |
| |
| #endif /*_DECAF_IO_DATAOUTPUTSTREAM_H_*/ |