C# Class NVelocity.Runtime.RuntimeInstance

This is the Runtime system for Velocity. It is the single access point for all functionality in Velocity. It adheres to the mediator pattern and is the only structure that developers need to be familiar with in order to get Velocity to perform. * The Runtime will also cooperate with external systems like Turbine. Runtime properties can set and then the Runtime is initialized. * Turbine for example knows where the templates are to be loaded from, and where the velocity log file should be placed. * So in the case of Velocity cooperating with Turbine the code might look something like the following: *

 Runtime.setProperty(Runtime.FILE_RESOURCE_LOADER_PATH, templatePath); Runtime.setProperty(Runtime.RUNTIME_LOG, pathToVelocityLog); Runtime.init();

 ----------------------------------------------------------------------- N O T E S  O N  R U N T I M E  I N I T I A L I Z A T I O N ----------------------------------------------------------------------- Runtime.init() If Runtime.init() is called by itself the Runtime will initialize with a set of default values. ----------------------------------------------------------------------- Runtime.init(String/Properties) * In this case the default velocity properties are layed down first to provide a solid base, then any properties provided in the given properties object will override the corresponding default property. -----------------------------------------------------------------------

Inheritance: RuntimeConstants, RuntimeServices

显示文件 Open project: nats/castle-1.0.3-mono

Public Methods

Method	Description
AddProperty ( String key, Object value ) : void	Add a property to the configuration. If it already exists then the value stated here will be added to the configuration entry. For example, if `resource.loader = file` is already present in the configuration and you `addProperty("resource.loader", "classpath")` Then you will end up with a IList like the following: `["file", "classpath"]`
AddVelocimacro ( String name, String macro, String argArray, String sourceTemplate ) : bool	Adds a new Velocimacro. Usually called by Macro only while parsing.
ClearProperty ( String key ) : void	Clear the values pertaining to a particular property.
CreateNewParser ( ) : Parser	Returns a JavaCC generated Parser.
Debug ( Object message ) : void	Log a debug message.
DumpVMNamespace ( String ns ) : bool	Tells the vmFactory to dump the specified namespace. This is to support clearing the VM list when in `inline-VM-local-scope` mode.
Error ( Object message ) : void	Log an error message.
GetApplicationAttribute ( Object key ) : Object	Return the velocity runtime configuration object.
GetBoolean ( String key, bool def ) : bool	Boolean property accessor method to hide the configuration implementation.
GetContent ( String name ) : ContentResource	Returns a static content resource from the resource manager. Uses the current value if `INPUT_ENCODING` as the character encoding.
GetContent ( String name, String encoding ) : ContentResource	Returns a static content resource from the resource manager.
GetInt ( String key ) : int	Int property accessor method to hide the configuration implementation.
GetInt ( String key, int defaultValue ) : int	Int property accessor method to hide the configuration implementation.
GetLoaderNameForResource ( String resourceName ) : String	Determines is a template exists, and returns name of the loader that provides it. This is a slightly less hokey way to support the `Velocity.templateExists()` utility method, which was broken when per-template encoding was introduced. We can revisit this.
GetProperty ( String key ) : Object	Allows an external caller to get a property. The calling routine is required to know the type, as this routine will return an Object, as that is what properties can be.
GetString ( String key ) : String	String property accessor method to hide the configuration implementation
GetString ( String key, String defaultValue ) : String	String property accessor method with default to hide the configuration implementation.
GetTemplate ( String name ) : Template	Returns a `Template` from the resource manager. This method assumes that the character encoding of the template is set by the `input.encoding` property. The default is "ISO-8859-1"
GetTemplate ( String name, String encoding ) : Template	Returns a `Template` from the resource manager
GetVelocimacro ( String vmName, String templateName ) : Directive.Directive	Returns the appropriate VelocimacroProxy object if strVMname is a valid current Velocimacro.
Info ( Object message ) : void	Log an info message.
Init ( ) : void
Init ( ExtendedProperties p ) : void	Initialize the Velocity Runtime with a Properties object.
Init ( String configurationFile ) : void	Initialize the Velocity Runtime with the name of ExtendedProperties object.
IsVelocimacro ( String vmName, String templateName ) : bool	Checks to see if a VM exists
Parse ( TextReader reader, String templateName ) : SimpleNode	Parse the input and return the root of AST node structure. In the event that it runs out of parsers in the pool, it will create and let them be GC'd dynamically, logging that it has to do that. This is considered an exceptional condition. It is expected that the user will set the `PARSER_POOL_SIZE` property appropriately for their application. We will revisit this.
Parse ( TextReader reader, String templateName, bool dumpNamespace ) : SimpleNode	Parse the input and return the root of the AST node structure.
RuntimeInstance ( ) : System
SetApplicationAttribute ( Object key, Object o ) : Object
SetProperty ( String key, Object value ) : void	Allows an external system to set a property in the Velocity Runtime.
Warn ( Object message ) : void	Log a warning message.

Private Methods

Method	Description
Log ( LogLevel level, Object message ) : void	Handle logging.
initializeDirectiveManager ( ) : void
initializeDirectives ( ) : void	This methods initializes all the directives that are used by the Velocity Runtime. The directives to be initialized are listed in the RUNTIME_DEFAULT_DIRECTIVES properties file. @throws Exception
initializeIntrospection ( ) : void	Gets the classname for the Uberspect introspection package and instantiates an instance.
initializeLogger ( ) : void	Initialize the Velocity logging system. * @throws Exception
initializeParserPool ( ) : void	Initializes the Velocity parser pool. This still needs to be implemented.
initializeProperties ( ) : void	Initialize Velocity properties, if the default properties have not been laid down first then do so. Then proceed to process any overriding properties. Laying down the default properties gives a much greater chance of having a working system.
initializeResourceManager ( ) : void
setDefaultProperties ( ) : void	Initializes the Velocity Runtime with properties file. The properties file may be in the file system proper, or the properties file may be in the classpath.
showStackTrace ( ) : bool	Added this to check and make sure that the configuration is initialized before trying to get properties from it. This occurs when there are errors during initialization and the default properties have yet to be layed down.

Method Details

AddProperty() public method

Add a property to the configuration. If it already exists then the value stated here will be added to the configuration entry. For example, if resource.loader = file is already present in the configuration and you addProperty("resource.loader", "classpath") Then you will end up with a IList like the following: ["file", "classpath"]

public AddProperty ( String key, Object value ) : void
key	String	key
value	Object	value
return	void

AddVelocimacro() public method

Adds a new Velocimacro. Usually called by Macro only while parsing.

public AddVelocimacro ( String name, String macro, String argArray, String sourceTemplate ) : bool
name	String	Name of velocimacro
macro	String	String form of macro body
argArray	String	Array of strings, containing the #macro() arguments. the 0th is the name.
sourceTemplate	String	Name of template
return	bool

ClearProperty() public method

Clear the values pertaining to a particular property.

public ClearProperty ( String key ) : void
key	String	key of property to clear
return	void

CreateNewParser() public method

Returns a JavaCC generated Parser.

public CreateNewParser ( ) : Parser
return	NVelocity.Runtime.Parser.Parser

Debug() public method

Log a debug message.

public Debug ( Object message ) : void
message	Object	message to log
return	void

DumpVMNamespace() public method

Tells the vmFactory to dump the specified namespace. This is to support clearing the VM list when in inline-VM-local-scope mode.

public DumpVMNamespace ( String ns ) : bool
ns	String
return	bool

Error() public method

Log an error message.

public Error ( Object message ) : void
message	Object	message to log
return	void

GetApplicationAttribute() public method

Return the velocity runtime configuration object.

public GetApplicationAttribute ( Object key ) : Object
key	Object
return	Object

GetBoolean() public method

Boolean property accessor method to hide the configuration implementation.

public GetBoolean ( String key, bool def ) : bool
key	String	property key
def	bool	default value if property not found
return	bool

GetContent() public method

Returns a static content resource from the resource manager. Uses the current value if INPUT_ENCODING as the character encoding.

/// if template not found from any available source. ///

public GetContent ( String name ) : ContentResource
name	String	Name of content resource to get
return	NVelocity.Runtime.Resource.ContentResource

GetContent() public method

Returns a static content resource from the resource manager.

/// if template not found from any available source. ///

public GetContent ( String name, String encoding ) : ContentResource
name	String	Name of content resource to get
encoding	String	Character encoding to use
return	NVelocity.Runtime.Resource.ContentResource

GetInt() public method

Int property accessor method to hide the configuration implementation.

public GetInt ( String key ) : int
key	String	property key
return	int

GetInt() public method

Int property accessor method to hide the configuration implementation.

public GetInt ( String key, int defaultValue ) : int
key	String	property key
defaultValue	int	default value
return	int

GetLoaderNameForResource() public method

Determines is a template exists, and returns name of the loader that provides it. This is a slightly less hokey way to support the Velocity.templateExists() utility method, which was broken when per-template encoding was introduced. We can revisit this.

public GetLoaderNameForResource ( String resourceName ) : String
resourceName	String	Name of template or content resource
return	String

GetProperty() public method

Allows an external caller to get a property. The calling routine is required to know the type, as this routine will return an Object, as that is what properties can be.

public GetProperty ( String key ) : Object
key	String	property to return
return	Object

GetString() public method

String property accessor method to hide the configuration implementation

public GetString ( String key ) : String
key	String	property key
return	String

GetString() public method

String property accessor method with default to hide the configuration implementation.

public GetString ( String key, String defaultValue ) : String
key	String	key property key
defaultValue	String	default value to return if key not found in resource manager.
return	String

GetTemplate() public method

Returns a Template from the resource manager. This method assumes that the character encoding of the template is set by the input.encoding property. The default is "ISO-8859-1"

/// if template not found from any available source /// /// if template cannot be parsed due to syntax (or other) error. /// /// if an error occurs in template initialization ///

public GetTemplate ( String name ) : Template
name	String	The file name of the desired template. ///
return	NVelocity.Template

GetTemplate() public method

Returns a Template from the resource manager

/// if template not found from any available source. /// /// if template cannot be parsed due to syntax (or other) error. /// /// if an error occurs in template initialization ///

public GetTemplate ( String name, String encoding ) : Template
name	String	The name of the desired template.
encoding	String	Character encoding of the template
return	NVelocity.Template

GetVelocimacro() public method

Returns the appropriate VelocimacroProxy object if strVMname is a valid current Velocimacro.

public GetVelocimacro ( String vmName, String templateName ) : Directive.Directive
vmName	String	Name of velocimacro requested
templateName	String	Name of template
return	Directive.Directive

Info() public method

Log an info message.

public Info ( Object message ) : void
message	Object	message to log
return	void

Init() public method

public Init ( ) : void
return	void

Init() public method

Initialize the Velocity Runtime with a Properties object.

public Init ( ExtendedProperties p ) : void
p	Commons.Collections.ExtendedProperties	Properties
return	void

Init() public method

Initialize the Velocity Runtime with the name of ExtendedProperties object.

public Init ( String configurationFile ) : void
configurationFile	String	Properties
return	void

IsVelocimacro() public method

Checks to see if a VM exists

public IsVelocimacro ( String vmName, String templateName ) : bool
vmName	String	Name of velocimacro
templateName	String	Name of template
return	bool

Parse() public method

Parse the input and return the root of AST node structure. In the event that it runs out of parsers in the pool, it will create and let them be GC'd dynamically, logging that it has to do that. This is considered an exceptional condition. It is expected that the user will set the PARSER_POOL_SIZE property appropriately for their application. We will revisit this.

public Parse ( TextReader reader, String templateName ) : SimpleNode
reader	System.IO.TextReader	inputstream retrieved by a resource loader
templateName	String	name of the template being parsed
return	SimpleNode

Parse() public method

Parse the input and return the root of the AST node structure.

public Parse ( TextReader reader, String templateName, bool dumpNamespace ) : SimpleNode
reader	System.IO.TextReader	inputstream retrieved by a resource loader
templateName	String	name of the template being parsed
dumpNamespace	bool	flag to dump the Velocimacro namespace for this template
return	SimpleNode

RuntimeInstance() public method

public RuntimeInstance ( ) : System
return	System

SetApplicationAttribute() public method

public SetApplicationAttribute ( Object key, Object o ) : Object
key	Object
o	Object
return	Object

SetProperty() public method

Allows an external system to set a property in the Velocity Runtime.

public SetProperty ( String key, Object value ) : void
key	String	property key
value	Object	property value
return	void

Warn() public method

Log a warning message.

public Warn ( Object message ) : void
message	Object	message to log
return	void