org.knime.core.data.container
Class LongUTFDataOutputStream

java.lang.Object
  java.io.OutputStream
      org.knime.core.data.container.LongUTFDataOutputStream

All Implemented Interfaces:

Closeable, DataOutput, Flushable

public class LongUTFDataOutputStream
extends OutputStream
implements DataOutput

Wrapper class of a DataOutputStream that also allows to write UTF strings longer than 65535. This class delegates all method calls -- except for the writeUTF method -- and delegates it to an underlying output stream.

The writeUTF method of this class uses a longer header (10 bytes in total) to encode the utf length when processing long strings. This class has been written to overcome a limitation in java ... which is not going to be fixed, see also the sun bug report at http://bugs.sun.com/bugdatabase, bug id 4025564.

Author:

Bernd Wiswedel, University of Konstanz

See Also:

DataOutputStream.writeUTF(String)

Field Summary

(package private) static int

USE_LONG_UTF Short that is written in front of UTF'ed byte stream whose length is longer than 65535 bytes.

Constructor Summary

LongUTFDataOutputStream(DataOutputStream output)
Wraps the DataOutputStream argument and delegates all method calls (except the writeUTF method) to it.

Method Summary

void	close()
void	flush()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(String s)
void	writeChar(int v)
void	writeChars(String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeShort(int v)
void	writeUTF(String str)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

USE_LONG_UTF

static final int USE_LONG_UTF

Short that is written in front of UTF'ed byte stream whose length is longer than 65535 bytes.

See Also:

Constant Field Values

Constructor Detail

LongUTFDataOutputStream

public LongUTFDataOutputStream(DataOutputStream output)

Wraps the DataOutputStream argument and delegates all method calls (except the writeUTF method) to it.

Parameters:

output - The output stream to wrap.

Throws:

NullPointerException - If the argument is null.

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in interface DataOutput

Specified by:

write in class OutputStream

Throws:

IOException

writeBoolean

public void writeBoolean(boolean v)
                  throws IOException

Specified by:

writeBoolean in interface DataOutput

Throws:

IOException

writeByte

public void writeByte(int v)
               throws IOException

Specified by:

writeByte in interface DataOutput

Throws:

IOException

writeBytes

public void writeBytes(String s)
                throws IOException

Specified by:

writeBytes in interface DataOutput

Throws:

IOException

writeChar

public void writeChar(int v)
               throws IOException

Specified by:

writeChar in interface DataOutput

Throws:

IOException

writeChars

public void writeChars(String s)
                throws IOException

Specified by:

writeChars in interface DataOutput

Throws:

IOException

writeDouble

public void writeDouble(double v)
                 throws IOException

Specified by:

writeDouble in interface DataOutput

Throws:

IOException

writeFloat

public void writeFloat(float v)
                throws IOException

Specified by:

writeFloat in interface DataOutput

Throws:

IOException

writeInt

public void writeInt(int v)
              throws IOException

Specified by:

writeInt in interface DataOutput

Throws:

IOException

writeLong

public void writeLong(long v)
               throws IOException

Specified by:

writeLong in interface DataOutput

Throws:

IOException

writeShort

public void writeShort(int v)
                throws IOException

Specified by:

writeShort in interface DataOutput

Throws:

IOException

writeUTF

public void writeUTF(String str)
              throws IOException

Specified by:

writeUTF in interface DataOutput

Throws:

IOException