/*
* Copyright 2003,2004 The Apache Software Foundation.
*
* 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.apache.pluto.core.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Enumeration;
import javax.portlet.PortletPreferences;
import javax.portlet.PreferencesValidator;
import javax.portlet.ValidatorException;
public class PreferencesValidatorImpl implements PreferencesValidator
{
public PreferencesValidatorImpl()
{
}
public void validate(PortletPreferences preferences)
throws ValidatorException
{
Collection failedKeys = new ArrayList();
Enumeration names = preferences.getNames();
String[] defValues = {"no values"};
String[] values = null;
String key = null;
while (names.hasMoreElements())
{
key = names.nextElement().toString();
values = preferences.getValues(key, defValues);
if (values != null) // null values are allowed
{
for (int i=0; i<values.length;i++)
{
if (values[i] != null) // null values are allowed
{
//validates that the preferences do not start or end with white space
if (!values[i].equalsIgnoreCase(values[i].trim()))
{
failedKeys.add(key);
i=values.length;
}
}
}
}
}
if (!failedKeys.isEmpty())
{
throw new ValidatorException("One or more preferences do not comply with the validation criteria",failedKeys);
}
}
}