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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package javax.faces.component;
import javax.faces.context.FacesContext;
import javax.faces.application.Application;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
class SharedUtils {
/*
* Determine whether String is a mixed value binding expression or not.
*/
static boolean isMixedExpression(String expression) {
if (null == expression) {
return false;
}
// if it doesn't start and end with delimiters
return (!(expression.startsWith("#{") && expression.endsWith("}")))
&& isExpression(expression);
}
/*
* Determine whether String is a value binding expression or not.
*/
static boolean isExpression(String expression) {
if (null == expression) {
return false;
}
//check to see if attribute has an expression
int start = expression.indexOf("#{");
return start != -1 && expression.indexOf('}', start+2) != -1;
}
static Map<String, List<String>> evaluateExpressions(FacesContext context, Map<String, List<String>> map) {
if (map != null && !map.isEmpty()) {
Map<String, List<String>> ret = new HashMap<String, List<String>>(map.size());
for (Map.Entry<String, List<String>> entry : map.entrySet()) {
ret.put(entry.getKey(), evaluateExpressions(context, entry.getValue()));
}
return ret;
}
return map;
}
static List<String> evaluateExpressions(FacesContext context, List<String> values) {
if (!values.isEmpty()) {
List<String> ret = new ArrayList<String>(values.size());
Application app = context.getApplication();
for (String val : values) {
if (val != null) {
String value = val.trim();
if (isExpression(value)) {
value = app.evaluateExpressionGet(context,
value,
String.class);
}
ret.add(value);
}
}
return ret;
}
return values;
}
}
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