org.apache.camel.support

Class ScriptHelper

java.lang.Object

org.apache.camel.support.ScriptHelper

public final class ScriptHelper
extends Object

Method Summary

Modifier and Type	Method and Description
static boolean	hasExternalScript(String external) Whether the expression/predicate refers to an external script on the file/classpath etc.
static String	resolveOptionalExternalScript(org.apache.camel.CamelContext camelContext, org.apache.camel.Exchange exchange, String expression) Resolves the expression/predicate whether it refers to an external script on the file/classpath etc.
static String	resolveOptionalExternalScript(org.apache.camel.CamelContext camelContext, String expression) Resolves the expression/predicate whether it refers to an external script on the file/classpath etc.

Methods inherited from class java.lang.Object

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

Method Detail

resolveOptionalExternalScript

public static String resolveOptionalExternalScript(org.apache.camel.CamelContext camelContext,
                                                   String expression)

Resolves the expression/predicate whether it refers to an external script on the file/classpath etc. This requires to use the prefix resource: such as resource:classpath:com/foo/myscript.groovy, resource:file:/var/myscript.groovy.

If not then the returned value is returned as-is.

The resource is regarded as mandatory and an exception is thrown if the resource cannot be loaded. Adding ?optional=true as suffix will mark the resource as optional and null is returned if the resource could not be loaded.

resolveOptionalExternalScript

public static String resolveOptionalExternalScript(org.apache.camel.CamelContext camelContext,
                                                   org.apache.camel.Exchange exchange,
                                                   String expression)

Resolves the expression/predicate whether it refers to an external script on the file/classpath etc. This requires to use the prefix resource: such as resource:classpath:com/foo/myscript.groovy, resource:file:/var/myscript.groovy.

If not then the returned value is returned as-is.

If the exchange is provided (not null), then the external script can be referred via simple language for dynamic values, etc. resource:classpath:${header.myFileName}

The resource is regarded as mandatory and an exception is thrown if the resource cannot be loaded. Adding ?optional=true as suffix will mark the resource as optional and null is returned if the resource could not be loaded.

hasExternalScript

public static boolean hasExternalScript(String external)

Whether the expression/predicate refers to an external script on the file/classpath etc. This requires to use the prefix resource: such as resource:classpath:com/foo/myscript.groovy, resource:ref:myResource, resource:file:/var/myscript.groovy.