/*
* 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.components.treeprocessor.variables;
import java.util.Map;
import org.apache.cocoon.components.treeprocessor.InvokeContext;
import org.apache.cocoon.el.objectmodel.ObjectModel;
import org.apache.cocoon.el.parsing.StringTemplateParser;
import org.apache.cocoon.sitemap.PatternException;
import org.apache.cocoon.template.expression.Substitutions;
/**
* <p>{@link VariableResolver} that uses {@link StringTemplateParser} to resolve expressions.</p>
*
* @version $Id: StringTemplateParserVariableResolver.java 587751 2007-10-24 02:41:36Z vgritsenko $
*/
public final class StringTemplateParserVariableResolver extends VariableResolver {
public final static String ROLE = StringTemplateParserVariableResolver.class.getName();
private StringTemplateParser stringTemplateParser;
private ObjectModel objectModel;
private Substitutions substitutions;
public StringTemplateParserVariableResolver() {
super();
}
public StringTemplateParser getStringTemplateParser() {
return stringTemplateParser;
}
public void setStringTemplateParser(StringTemplateParser stringTemplateParser) {
this.stringTemplateParser = stringTemplateParser;
}
public ObjectModel getObjectModel() {
return objectModel;
}
public void setObjectModel(ObjectModel objectModel) {
this.objectModel = objectModel;
}
public void setExpression(String expression) throws PatternException {
this.originalExpr = expression;
try {
if (stringTemplateParser instanceof LegacySitemapStringTemplateParser)
this.substitutions = new LegacySubstitutions((LegacySitemapStringTemplateParser) stringTemplateParser, null, expression);
else
this.substitutions = new Substitutions(stringTemplateParser, null, expression);
} catch (Exception e) {
throw new PatternException(e);
}
}
public String resolve(InvokeContext context, Map objectModel) throws PatternException {
try {
if (this.substitutions instanceof LegacySubstitutions)
return ((LegacySubstitutions) substitutions).toString(null, this.objectModel, context, objectModel);
else
return substitutions.toString(null, this.objectModel);
} catch (Exception e) {
throw new PatternException(e);
}
}
}