org.jboss.as.controller

Class ExpressionResolverImpl

java.lang.Object

org.jboss.as.controller.ExpressionResolverImpl

All Implemented Interfaces:

ExpressionResolver

public class ExpressionResolverImpl
extends Object
implements ExpressionResolver

Basic ExpressionResolver implementation.

Author:

Kabir Khan

Field Summary

Fields inherited from interface org.jboss.as.controller.ExpressionResolver

EXPRESSION_PATTERN, REJECTING, SIMPLE, SIMPLE_LENIENT, TEST_RESOLVER

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExpressionResolverImpl() Creates a new ExpressionResolverImpl configured to throw an OFE when it encounters an unresolvable expression.
protected	ExpressionResolverImpl(boolean lenient) Creates a new ExpressionResolverImpl with configurable behavior as to whether it throws an OFE when it encounters an unresolvable expression.

Method Summary

Modifier and Type	Method and Description
org.jboss.dmr.ModelNode	resolveExpressions(org.jboss.dmr.ModelNode node) Resolves any expressions in the passed in ModelNode.
protected void	resolvePluggableExpression(org.jboss.dmr.ModelNode node) Attempt to resolve the expression encapsulated in the given node, setting the value of node to the resolved string if successful, or leaving node unaltered if the expression is not of a form resolvable by this method.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionResolverImpl

protected ExpressionResolverImpl()

Creates a new ExpressionResolverImpl configured to throw an OFE when it encounters an unresolvable expression.

ExpressionResolverImpl

protected ExpressionResolverImpl(boolean lenient)

Creates a new ExpressionResolverImpl with configurable behavior as to whether it throws an OFE when it encounters an unresolvable expression.

Parameters:

lenient - false if an OFE should be thrown if an unresolvable expression is found; true if the node should be left as an unresolved expression

Method Detail

resolveExpressions

public final org.jboss.dmr.ModelNode resolveExpressions(org.jboss.dmr.ModelNode node)
                                                 throws OperationFailedException

Description copied from interface: ExpressionResolver

Resolves any expressions in the passed in ModelNode. Expressions may either represent system properties or vaulted date. For vaulted data the format is ${VAULT::vault_block::attribute_name::sharedKey}

Specified by:

resolveExpressions in interface ExpressionResolver

Parameters:

node - the ModelNode containing expressions.

Returns:

a copy of the node with expressions resolved

Throws:

OperationFailedException - if there is a value of type ModelType.EXPRESSION in the node tree and there is no system property or environment variable that matches the expression, or if a security manager exists and its checkPermission method doesn't allow access to the relevant system property or environment variable

resolvePluggableExpression

protected void resolvePluggableExpression(org.jboss.dmr.ModelNode node)
                                   throws OperationFailedException

Attempt to resolve the expression encapsulated in the given node, setting the value of node to the resolved string if successful, or leaving node unaltered if the expression is not of a form resolvable by this method. When this method returns, the type of node should either be ModelType.STRING if this method was able to resolve, or ModelType.EXPRESSION if not.

The default implementation does nothing.

Parameters:

node - a node of type ModelType.EXPRESSION

Throws:

OperationFailedException - if the expression in node is of a form that should be resolvable by this method but some resolution failure occurs