Package com.itextpdf.tool.xml.pipeline.html

Class HtmlPipeline

java.lang.Object

com.itextpdf.tool.xml.pipeline.AbstractPipeline<HtmlPipelineContext>

com.itextpdf.tool.xml.pipeline.html.HtmlPipeline

All Implemented Interfaces:

Pipeline<HtmlPipelineContext>

public class HtmlPipeline
extends AbstractPipeline<HtmlPipelineContext>

The HtmlPipeline transforms received tags and content to PDF Elements.
To configure this pipeline a HtmlPipelineContext.

Field Summary

Fields

Modifier and Type	Field	Description
private final HtmlPipelineContext	hpc

Constructor Summary

Constructors

Constructor	Description
HtmlPipeline(HtmlPipelineContext hpc, Pipeline<?> next)

Method Summary

Modifier and Type	Method	Description
protected void	addStackKeeper(Tag t, HtmlPipelineContext hcc, TagProcessor tp)
Pipeline<?>	close(WorkerContext context, Tag t, ProcessObject po)	Just calls getNext. Override this to get notified on encountered closing tags.
Pipeline<?>	content(WorkerContext context, Tag t, String text, ProcessObject po)	Just calls getNext. Override this to get notified on encountered content.
String	getContextKey()	This allows the descendant classes to be fetched from the context.
Pipeline<?>	init(WorkerContext context)	The init method allows implementation to initialize the pipeline.
Pipeline<?>	open(WorkerContext context, Tag t, ProcessObject po)	Just calls getNext. Override this to get notified on encountered opening tags.

Methods inherited from class com.itextpdf.tool.xml.pipeline.AbstractPipeline

getLocalContext, getNext, setNext

Methods inherited from class java.lang.Object

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

Field Details

hpc

private final HtmlPipelineContext hpc

Constructor Details

HtmlPipeline

public HtmlPipeline(HtmlPipelineContext hpc,
 Pipeline<?> next)

Parameters:

hpc - the initial HtmlPipelineContext

next - the next pipe in row

Method Details

getContextKey

public String getContextKey()

This allows the descendant classes to be fetched from the context.

Overrides:

getContextKey in class AbstractPipeline<HtmlPipelineContext>

Returns:

getClass().getName() as name.

init

public Pipeline<?> init(WorkerContext context)
                 throws PipelineException

Description copied from interface: Pipeline

The init method allows implementation to initialize the pipeline. e.g. Initialize their CustomContext here and add it to the WorkerContext through WorkerContext.put(String, CustomContext).

Specified by:

init in interface Pipeline<HtmlPipelineContext>

Overrides:

init in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

open

public Pipeline<?> open(WorkerContext context,
 Tag t,
 ProcessObject po)
                 throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered opening tags.

Specified by:

open in interface Pipeline<HtmlPipelineContext>

Overrides:

open in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

content

public Pipeline<?> content(WorkerContext context,
 Tag t,
 String text,
 ProcessObject po)
                    throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered content.

Specified by:

content in interface Pipeline<HtmlPipelineContext>

Overrides:

content in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

text - the content

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

close

public Pipeline<?> close(WorkerContext context,
 Tag t,
 ProcessObject po)
                  throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered closing tags.

Specified by:

close in interface Pipeline<HtmlPipelineContext>

Overrides:

close in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

addStackKeeper

protected void addStackKeeper(Tag t,
 HtmlPipelineContext hcc,
 TagProcessor tp)