| <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../../jacoco-resources/report.gif" type="image/gif"/><title>EventListenerComparator.java</title><link rel="stylesheet" href="../../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../../index.html" class="el_report">Apache Shiro :: Jar Bundle</a> > <a href="../index.html" class="el_bundle">shiro-core</a> > <a href="index.source.html" class="el_package">org.apache.shiro.event.support</a> > <span class="el_source">EventListenerComparator.java</span></div><h1>EventListenerComparator.java</h1><pre class="source lang-java linenums">/* |
| * 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.shiro.event.support; |
| |
| import java.util.Comparator; |
| |
| /** |
| * Compares two event listeners to determine the order in which they should be invoked when an event is dispatched. |
| * The lower the order, the sooner it will be invoked (the higher its precedence). The higher the order, the later |
| * it will be invoked (the lower its precedence). |
| * <p/> |
| * TypedEventListeners have a higher precedence (i.e. a lower order) than standard EventListener instances. Standard |
| * EventListener instances have the same order priority. |
| * <p/> |
| * When both objects being compared are TypedEventListeners, they are ordered according to the rules of the |
| * {@link EventClassComparator}, using the TypedEventListeners' |
| * {@link TypedEventListener#getEventType() eventType}. |
| * |
| * @since 1.3 |
| */ |
| <span class="fc" id="L37">public class EventListenerComparator implements Comparator<EventListener> {</span> |
| |
| //event class comparator is stateless, so we can retain an instance: |
| <span class="fc" id="L40"> private static final EventClassComparator EVENT_CLASS_COMPARATOR = new EventClassComparator();</span> |
| |
| public int compare(EventListener a, EventListener b) { |
| <span class="fc bfc" id="L43" title="All 2 branches covered."> if (a == null) {</span> |
| <span class="fc bfc" id="L44" title="All 2 branches covered."> if (b == null) {</span> |
| <span class="fc" id="L45"> return 0;</span> |
| } else { |
| <span class="fc" id="L47"> return -1;</span> |
| } |
| <span class="fc bfc" id="L49" title="All 2 branches covered."> } else if (b == null) {</span> |
| <span class="fc" id="L50"> return 1;</span> |
| <span class="pc bpc" id="L51" title="1 of 4 branches missed."> } else if (a == b || a.equals(b)) {</span> |
| <span class="fc" id="L52"> return 0;</span> |
| } else { |
| <span class="fc bfc" id="L54" title="All 2 branches covered."> if (a instanceof TypedEventListener) {</span> |
| <span class="fc" id="L55"> TypedEventListener ta = (TypedEventListener)a;</span> |
| <span class="fc bfc" id="L56" title="All 2 branches covered."> if (b instanceof TypedEventListener) {</span> |
| <span class="fc" id="L57"> TypedEventListener tb = (TypedEventListener)b;</span> |
| <span class="fc" id="L58"> return EVENT_CLASS_COMPARATOR.compare(ta.getEventType(), tb.getEventType());</span> |
| } else { |
| <span class="fc" id="L60"> return -1; //TypedEventListeners are 'less than' (higher priority) than non typed</span> |
| } |
| } else { |
| <span class="fc bfc" id="L63" title="All 2 branches covered."> if (b instanceof TypedEventListener) {</span> |
| <span class="fc" id="L64"> return 1;</span> |
| } else { |
| <span class="fc" id="L66"> return 0;</span> |
| } |
| } |
| } |
| } |
| } |
| </pre><div class="footer"><span class="right">Created with <a href="http://www.eclemma.org/jacoco">JaCoCo</a> 0.7.7.201606060606</span></div></body></html> |
