/*
* Constellation - An open source and standard compliant SDI
* http://www.constellation-sdi.org
*
* Copyright 2014 Geomatys.
*
* 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.constellation.gui.util;
import org.apache.commons.lang3.ObjectUtils;
import org.constellation.configuration.StyleBrief;
import java.util.Comparator;
import static org.apache.sis.util.ArgumentChecks.ensureNonNull;
/**
* @author Fabien Bernard (Geomatys).
* @version 0.9
* @since 0.9
*/
public class StyleBeanComparator implements Comparator<StyleBrief> {
private final Criteria criteria;
private final Mode mode;
public static enum Criteria {
NAME,
DATE,
OWNER,
TYPE;
public static Criteria fromName(final String name) {
if ("name".equalsIgnoreCase(name)) {
return NAME;
}
if ("date".equalsIgnoreCase(name)) {
return DATE;
}
if ("owner".equalsIgnoreCase(name)) {
return OWNER;
}
if ("type".equalsIgnoreCase(name)) {
return TYPE;
}
throw new IllegalArgumentException("Unknown sort criteria: \"" + name + "\".");
}
}
public static enum Mode {
ASCENDING,
DESCENDING;
public static Mode fromName(final String name) {
if ("ascending".equalsIgnoreCase(name)) {
return ASCENDING;
}
if ("descending".equalsIgnoreCase(name)) {
return DESCENDING;
}
throw new IllegalArgumentException("Unknown sort mode: \"" + name + "\".");
}
}
public StyleBeanComparator(final String criteria, final String mode) {
this(Criteria.fromName(criteria), Mode.fromName(mode));
}
public StyleBeanComparator(final Criteria criteria, final Mode mode) {
ensureNonNull("criteria", criteria);
ensureNonNull("mode", mode);
this.criteria = criteria;
this.mode = mode;
}
@Override
public int compare(final StyleBrief l1, final StyleBrief l2) {
final int result;
switch (criteria) {
case NAME:
result = compareName(l1, l2);
break;
case DATE:
result = compareDate(l1, l2);
break;
case OWNER:
result = compareOwner(l1, l2);
break;
case TYPE:
result = compareDataType(l1, l2);
break;
default: return 0;
}
return Mode.ASCENDING.equals(mode) ? -result : result;
}
private int compareName(final StyleBrief s1, final StyleBrief s2) {
return ObjectUtils.compare(s1.getName(), s2.getName());
}
private int compareDate(final StyleBrief s1, final StyleBrief s2) {
return -ObjectUtils.compare(s1.getDate(), s2.getDate(), true);
}
private int compareOwner(final StyleBrief s1, final StyleBrief s2) {
return s1.getOwner().compareTo(s2.getOwner());
}
private int compareDataType(final StyleBrief s1, final StyleBrief s2) {
return s1.getType().compareTo(s2.getType());
}
}