/*
* Copyright 2002-2007 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.internna.iwebmvc.spring.binding;
import java.beans.PropertyEditorSupport;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import org.internna.iwebmvc.core.crypto.Decipherer;
import org.internna.iwebmvc.core.dao.DAO;
import org.internna.iwebmvc.model.DomainEntity;
import org.internna.iwebmvc.model.UUID;
import org.internna.iwebmvc.utils.ClassUtils;
import org.internna.iwebmvc.utils.StringUtils;
/**
* Binder for List<DomainEntity>
*
* @author Jose Noheda
* @since 1.0
*/
public class ListBinder extends PropertyEditorSupport {
protected DAO dao;
protected Decipherer decipherer;
public ListBinder(DAO dao, Decipherer decipherer) {
this.dao = dao;
this.decipherer = decipherer;
}
@Override
@SuppressWarnings("unchecked")
public void setAsText(String text) throws IllegalArgumentException {
List<Object> list = new ArrayList<Object>();
List<String> data = StringUtils.splitBetweenDelimiters(text, "||", ":");
Set<Integer> excludedPositions = new HashSet<Integer>();
StringTokenizer exTokenizer = new StringTokenizer(data.get(0), ",");
while (exTokenizer.hasMoreTokens()) excludedPositions.add(Integer.valueOf(exTokenizer.nextToken()));
StringTokenizer tokenizer = new StringTokenizer(data.get(2), "###");
try {
int tokens = tokenizer.countTokens();
Class<? extends DomainEntity> clazz = ClassUtils.forName(decipherer.decrypt(data.get(1)));
for (int i = 0; i < tokens; i++) {
String token = tokenizer.nextToken();
if (!excludedPositions.contains(i)) {
list.add(dao.find(clazz, new UUID(decipherer.decrypt(token))));
}
}
setValue(list);
} catch (Exception e) {
throw new IllegalArgumentException(e);
}
}
}