org.primefaces.model.filter.InFilterConstraint Maven / Gradle / Ivy
/*
* Copyright 2009-2014 PrimeTek.
*
* 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.primefaces.model.filter;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.Locale;
import javax.faces.FacesException;
public class InFilterConstraint implements FilterConstraint {
public boolean applies(Object value, Object filter, Locale locale) {
if(filter == null) {
return true;
}
if(value == null) {
return false;
}
Collection collection = null;
if(filter.getClass().isArray()) {
collection = Arrays.asList((Object[])filter);
} else if(filter instanceof Collection) {
collection = (Collection) filter;
} else {
throw new FacesException("Filter value must be an array or a collection when using \"in\" filter constraint.");
}
if(collection != null && !collection.isEmpty()) {
for (Iterator it = collection.iterator(); it.hasNext();) {
Object object = it.next();
if(object.equals(value)) {
return true;
}
}
return false;
}
else {
return true;
}
}
}