org.springframework.scripting.support
Class ResourceScriptSource

java.lang.Object
  org.springframework.scripting.support.ResourceScriptSource

All Implemented Interfaces:

ScriptSource

public class ResourceScriptSource
extends Object
implements ScriptSource

ScriptSource implementation based on Spring's Resource abstraction. Loads the script text from the underlying Resource's InputStream and tracks the file timestamp of the Resource (if possible).

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller

See Also:

InputStreamSource.getInputStream(), Resource.getFile(), ResourceLoader

Field Summary

protected Log

logger Logger available to subclasses

Constructor Summary

ResourceScriptSource(Resource resource)
Create a new ResourceScriptSource for the given resource.

Method Summary

Resource	getResource() Return the Resource to load the script from.
String	getScriptAsString() Retrieve the current script source text as String.
boolean	isModified() Indicate whether the underlying script data was modified since the last time getScriptAsString() was called.
protected long	retrieveLastModifiedTime() Retrieve the current last-modified timestamp of the underlying timestamp.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Logger available to subclasses

Constructor Detail

ResourceScriptSource

public ResourceScriptSource(Resource resource)

Create a new ResourceScriptSource for the given resource.

Parameters:

resource - the Resource to load the script from

Throws:

IllegalArgumentException - if the supplied Resource is null

Method Detail

getResource

public final Resource getResource()

Return the Resource to load the script from.

getScriptAsString

public String getScriptAsString()
                         throws IOException

Description copied from interface: ScriptSource

Retrieve the current script source text as String.

Specified by:

getScriptAsString in interface ScriptSource

Throws:

IOException - if script retrieval failed

isModified

public boolean isModified()

Description copied from interface: ScriptSource

Indicate whether the underlying script data was modified since the last time getScriptAsString() was called. Returns true if the script has not been read yet.

Specified by:

isModified in interface ScriptSource

See Also:

ScriptSource.getScriptAsString()

retrieveLastModifiedTime

protected long retrieveLastModifiedTime()

Retrieve the current last-modified timestamp of the underlying timestamp.

Returns:

the current timestamp, or 0 if not determinable

toString

public String toString()

Overrides:

toString in class Object