org.apache.shale.test.el.MockVariableMapper Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.shale.test.el;
import java.util.HashMap;
import java.util.Map;
import javax.el.ValueExpression;
import javax.el.VariableMapper;
/**
* Mock implementation of VariableMapper.
*
* @since 1.0.4
*/
public class MockVariableMapper extends VariableMapper {
// ------------------------------------------------------------ Constructors
/** Creates a new instance of MockVariableMapper */
public MockVariableMapper() {
}
// ------------------------------------------------------ Instance Variables
/**
* Map of ValueExpressions, keyed by variable name.
*/
private Map expressions = new HashMap();
// ----------------------------------------------------- Mock Object Methods
// -------------------------------------------------- FunctionMapper Methods
/** {@inheritDoc} */
public ValueExpression resolveVariable(String variable) {
return (ValueExpression) expressions.get(variable);
}
/** {@inheritDoc} */
public ValueExpression setVariable(String variable, ValueExpression expression) {
ValueExpression original = (ValueExpression) expressions.get(variable);
if (expression == null) {
expressions.remove(variable);
} else {
expressions.put(variable, expression);
}
return original;
}
}