Module org.apache.johnzon.core

Package org.apache.johnzon.core

Class Snippet.Buffer

java.lang.Object

org.apache.johnzon.core.Snippet.Buffer

All Implemented Interfaces:

Closeable, AutoCloseable

Enclosing class:

Snippet

private class Snippet.Buffer
extends Object
implements Closeable

There are several buffers involved in the creation of a json string. This class carefully manages them all. JsonGeneratorImpl with a 64k buffer (by default) ObjectStreamWriter with an 8k buffer SnippetOutputStream with a buffer of maxSnippetLength As we create json via calling the JsonGenerator it is critical we flush the work in progress all the way through these buffers and into the final SnippetOutputStream buffer. If we do not, we risk creating up to 64k of json when we may only need 50 bytes. We could potentially optimize this code so the buffer held by JsonGeneratorImpl is also the maxSnippetLength.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	Snippet.Buffer.SnippetWriter	Specialized Writer with three internal states: Writing, Completed, Truncated.

Field Summary

Fields

Modifier and Type	Field	Description
private final jakarta.json.stream.JsonGenerator	generator
private final Snippet.Buffer.SnippetWriter	snippet

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Buffer()

Method Summary

Modifier and Type	Method	Description
void	close()
private String	get()
private boolean	terminate()
private void	write(jakarta.json.JsonArray array)
private void	write(jakarta.json.JsonObject object)
private void	write(jakarta.json.JsonValue value)
private void	write(String name, jakarta.json.JsonValue value)

Methods inherited from class java.lang.Object

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

Field Details

generator

private final jakarta.json.stream.JsonGenerator generator

snippet

private final Snippet.Buffer.SnippetWriter snippet

Constructor Details

Buffer

private Buffer()

Method Details

write

private void write(jakarta.json.JsonValue value)

write

private void write(jakarta.json.JsonArray array)

write

private void write(jakarta.json.JsonObject object)

write

private void write(String name,
 jakarta.json.JsonValue value)

terminate

private boolean terminate()

get

private String get()

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable