Module gg.jte.runtime

Package gg.jte.output

Class Utf8ByteOutput

java.lang.Object

java.io.Writer

gg.jte.output.Utf8ByteOutput

All Implemented Interfaces:

TemplateOutput, Closeable, Flushable, Appendable, AutoCloseable

public final class Utf8ByteOutput
extends Writer
implements TemplateOutput

Heavily optimized UTF-8 template output, designed to be CPU and memory friendly. You may want to use this class, if you write to a low-level binary output stream and you need the exact content-size of the output. CAUTION: You must enable TemplateEngine.setBinaryStaticContent(boolean), otherwise this class won't provide any benefits over StringOutput!

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Utf8ByteOutput.DataConsumer

Field Summary

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor	Description
Utf8ByteOutput()	Constructs an output with sane defaults
Utf8ByteOutput(int chunkSize, int tempBufferSize)	Constructs an output with custom settings.

Method Summary

Modifier and Type	Method	Description
void	close()
void	flush()
int	getContentLength()
Writer	getWriter()
void	write(char c)
void	write(char[] buffer)
void	write(char[] buffer, int off, int len)
void	write(int c)
void	write(String str)
void	writeBinaryContent(byte[] value)
void	writeContent(String s)
void	writeTo(Utf8ByteOutput.DataConsumer dataConsumer)	Passes all collected bytes to the given data consumer.
void	writeTo(OutputStream os)	Passes all collected bytes to the given output stream.
void	writeUserContent(boolean value)
void	writeUserContent(byte value)
void	writeUserContent(char value)
void	writeUserContent(double value)
void	writeUserContent(float value)
void	writeUserContent(int value)
void	writeUserContent(long value)

Methods inherited from class java.io.Writer

append, append, append, nullWriter, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface gg.jte.TemplateOutput

writeUserContent, writeUserContent, writeUserContent, writeUserContent

Constructor Detail

Utf8ByteOutput

public Utf8ByteOutput()

Constructs an output with sane defaults

Utf8ByteOutput

public Utf8ByteOutput(int chunkSize,
                      int tempBufferSize)

Constructs an output with custom settings. This output maintains a list of binary chunks. Pre-encoded data is passed as is, while internal buffers are created for dynamic data as needed.

Parameters:

chunkSize - The size in bytes for chunks of dynamic data.

tempBufferSize - The size for the temporary buffer used for intermediate String encoding.

Method Detail

getContentLength

public int getContentLength()

Returns:

The amount of bytes written to this output.

writeTo

public void writeTo(OutputStream os)
             throws IOException

Passes all collected bytes to the given output stream. Does not close the stream.

Parameters:

os - the output stream

Throws:

IOException - in case the stream operation fails

writeTo

public void writeTo(Utf8ByteOutput.DataConsumer dataConsumer)
             throws IOException

Passes all collected bytes to the given data consumer. CAUTION: For performance reasons no copy of the byte arrays is made. It is the consumer's duty to never alter their content!

Parameters:

dataConsumer - the data consumer

Throws:

IOException - in case the consume operation fails

getWriter

public Writer getWriter()

Specified by:

getWriter in interface TemplateOutput

writeContent

public void writeContent(String s)

Specified by:

writeContent in interface TemplateOutput

writeBinaryContent

public void writeBinaryContent(byte[] value)

Specified by:

writeBinaryContent in interface TemplateOutput

writeUserContent

public void writeUserContent(boolean value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(byte value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(char value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(int value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(long value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(float value)

Specified by:

writeUserContent in interface TemplateOutput

writeUserContent

public void writeUserContent(double value)

Specified by:

writeUserContent in interface TemplateOutput

write

public void write(char[] buffer,
                  int off,
                  int len)

Specified by:

write in class Writer

write

public void write(char c)

write

public void write(int c)

Overrides:

write in class Writer

write

public void write(char[] buffer)

Overrides:

write in class Writer

write

public void write(String str)

Overrides:

write in class Writer

flush

public void flush()

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class Writer