/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you 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.myfaces.extensions.validator.core; | |
import org.apache.myfaces.extensions.validator.internal.UsageInformation; | |
import org.apache.myfaces.extensions.validator.internal.UsageCategory; | |
import java.util.Comparator; | |
import java.io.Serializable; | |
/** | |
* @since x.x.3 | |
*/ | |
@UsageInformation(UsageCategory.INTERNAL) | |
public class InvocationOrderComparator<T> implements Comparator<T>, Serializable | |
{ | |
private static final long serialVersionUID = 2287258656373616584L; | |
public int compare(T nm1, T nm2) | |
{ | |
if (hasPriority(nm1) && hasPriority(nm2)) | |
{ | |
return isPriorityHigher(nm1.getClass().getAnnotation(InvocationOrder.class), | |
nm2.getClass().getAnnotation(InvocationOrder.class)); | |
} | |
if (!hasPriority(nm1) && !hasPriority(nm2)) | |
{ | |
return 0; | |
} | |
return hasPriority(nm1) ? -1 : 1; | |
} | |
private int isPriorityHigher(InvocationOrder priority1, InvocationOrder priority2) | |
{ | |
if (priority1.value() == priority2.value()) | |
{ | |
return 0; | |
} | |
return priority1.value() < priority2.value() ? -1 : 1; | |
} | |
private boolean hasPriority(Object nm) | |
{ | |
return nm.getClass().isAnnotationPresent(InvocationOrder.class); | |
} | |
} |