Package org.apache.velocity.runtime.directive

Class Parse

java.lang.Object

org.apache.velocity.runtime.directive.Directive

org.apache.velocity.runtime.directive.InputBase

org.apache.velocity.runtime.directive.Parse

All Implemented Interfaces:

Cloneable, DirectiveConstants

public class Parse
extends InputBase

Pluggable directive that handles the #parse() statement in VTL.

 Notes:
 -----
  1) The parsed source material can only come from somewhere in
    the TemplateRoot tree for security reasons. There is no way
    around this.  If you want to include content from elsewhere on
    your disk, use a link from somewhere under Template Root to that
    content.

  2) There is a limited parse depth.  It is set as a property
    "directive.parse.max_depth = 10" by default.  This 10 deep
    limit is a safety feature to prevent infinite loops.
 

Version:

$Id$

Field Summary

Fields

Modifier and Type	Field	Description
private int	maxDepth
boolean	strictRef	Indicates if we are running in strict reference mode.

Fields inherited from class org.apache.velocity.runtime.directive.Directive

log, rsvc

Fields inherited from interface org.apache.velocity.runtime.directive.DirectiveConstants

BLOCK, LINE

Constructor Summary

Constructors

Constructor	Description
Parse()

Method Summary

Modifier and Type	Method	Description
void	checkArgs(ArrayList<Integer> argtypes, Token t, String templateName)	Called by the parser to validate the argument types
String	getName()	Return name of this directive.
String	getScopeName()	Overrides the default to use "template", so that all templates can use the same scope reference, whether rendered via #parse or direct merge.
int	getType()	Return type of this directive.
void	init(RuntimeServices rs, InternalContextAdapter context, Node node)	Init's the #parse directive.
boolean	render(InternalContextAdapter context, Writer writer, Node node)	iterates through the argument list and renders every argument that is appropriate.

Methods inherited from class org.apache.velocity.runtime.directive.InputBase

getInputEncoding

Methods inherited from class org.apache.velocity.runtime.directive.Directive

getColumn, getLine, getTemplate, getTemplateName, isScopeProvided, makeScope, postRender, preRender, setLocation, setLocation

Methods inherited from class java.lang.Object

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

Field Details

maxDepth

private int maxDepth

strictRef

public boolean strictRef

Indicates if we are running in strict reference mode.

Constructor Details

Parse

public Parse()

Method Details

getName

public String getName()

Return name of this directive.

Specified by:

getName in class Directive

Returns:

The name of this directive.

getScopeName

public String getScopeName()

Overrides the default to use "template", so that all templates can use the same scope reference, whether rendered via #parse or direct merge.

Overrides:

getScopeName in class Directive

Returns:

the name to be used when a scope control is provided for this directive.

getType

public int getType()

Return type of this directive.

Specified by:

getType in class Directive

Returns:

The type of this directive.

init

public void init(RuntimeServices rs,
 InternalContextAdapter context,
 Node node)
          throws TemplateInitException

Init's the #parse directive.

Overrides:

init in class Directive

Parameters:

rs -

context -

node -

Throws:

TemplateInitException

render

public boolean render(InternalContextAdapter context,
 Writer writer,
 Node node)
               throws IOException,
ResourceNotFoundException,
ParseErrorException,
MethodInvocationException

iterates through the argument list and renders every argument that is appropriate. Any non appropriate arguments are logged, but render() continues.

Specified by:

render in class Directive

Parameters:

context -

writer -

node -

Returns:

True if the directive rendered successfully.

Throws:

IOException

ResourceNotFoundException

ParseErrorException

MethodInvocationException

checkArgs

public void checkArgs(ArrayList<Integer> argtypes,
 Token t,
 String templateName)
               throws ParseException

Called by the parser to validate the argument types

Overrides:

checkArgs in class Directive

Parameters:

argtypes - type, Array of argument types of each argument to the directive for example ParserTreeConstants.JJTWORD

t - token of directive

templateName - the name of the template this directive is referenced in.

Throws:

ParseException