org.broadleafcommerce.common.web.expression.BroadleafVariableExpressionEvaluator Maven / Gradle / Ivy

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A collection of classes shared by broadleaf profile, cms, admin, and core.

There is a newer version: 3.1.15-GA

/*
 * Copyright 2008-2013 the original author or authors.
 *
 * Licensed 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.broadleafcommerce.common.web.expression;

import org.springframework.stereotype.Component;
import org.thymeleaf.context.IProcessingContext;
import org.thymeleaf.spring3.expression.SpelVariableExpressionEvaluator;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

/**
 * Provides a skeleton to register multiple {@link BroadleafVariableExpression} implementors.
 * 
 * @author Andre Azzolini (apazzolini)
 */
@Component("blVariableExpressionEvaluator")
public class BroadleafVariableExpressionEvaluator extends SpelVariableExpressionEvaluator {
    
    @Resource(name = "blVariableExpressions")
    protected List expressions = new ArrayList();
    
    @Override
    protected Map computeAdditionalExpressionObjects(final IProcessingContext processingContext) {
        Map map = new HashMap();
        
        for (BroadleafVariableExpression expression : expressions) {
            if (!(expression instanceof NullBroadleafVariableExpression)) {
                map.put(expression.getName(), expression);
            }
        }
        
        return map;
    }

}