/*
* 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.cocoon.el.impl;
import java.util.Map;
import org.apache.cocoon.el.Expression;
import org.apache.cocoon.el.ExpressionCompiler;
import org.apache.cocoon.el.ExpressionException;
import org.apache.cocoon.el.ExpressionFactory;
/**
* @version $Id: DefaultExpressionFactory.java 587751 2007-10-24 02:41:36Z vgritsenko $
*/
public class DefaultExpressionFactory implements ExpressionFactory {
public static final String DEFAULT_EXPRESSION_LANGUAGE = "default";
protected Map expressionCompilers;
public Expression getExpression(String language, String expression) throws ExpressionException {
if (!this.expressionCompilers.containsKey(language))
throw new ExpressionException("Can't find a compiler for " + language);
ExpressionCompiler compiler = (ExpressionCompiler) this.expressionCompilers.get(language);
return compiler.compile(language, expression);
}
public Expression getExpression(String expression) throws ExpressionException {
String language = DEFAULT_EXPRESSION_LANGUAGE;
int end = expression.indexOf(':');
if (end != -1) {
language = expression.substring(0, end);
expression = expression.substring(end + 1);
}
return getExpression(language, expression);
}
public Map getExpressionCompilers() {
return expressionCompilers;
}
public void setExpressionCompilers(Map expressionCompilers) {
this.expressionCompilers = expressionCompilers;
}
}