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1   /*
2     (C) Copyright IBM Corp. 2007, 2010
3   
4     THIS FILE IS PROVIDED UNDER THE TERMS OF THE ECLIPSE PUBLIC LICENSE
5     ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS FILE
6     CONSTITUTES RECIPIENTS ACCEPTANCE OF THE AGREEMENT.
7   
8     You can obtain a current copy of the Eclipse Public License from
9     http://www.opensource.org/licenses/eclipse-1.0.php
10  
11    @author : Endre Bak, IBM, ebak@de.ibm.com
12   * 
13   * Change History
14   * Flag       Date        Prog         Description
15   *------------------------------------------------------------------------------- 
16   * 1804402    2007-09-28  ebak         IPv6 ready SLP
17   * 2003590    2008-06-30  blaschke-oss Change licensing from CPL to EPL
18   * 2524131    2009-01-21  raman_arora  Upgrade client to JDK 1.5 (Phase 1)
19   * 2531371    2009-02-10  raman_arora  Upgrade client to JDK 1.5 (Phase 2)
20   * 2795671    2009-05-22  raman_arora  Add Type to Comparable <T>
21   * 3023135    2010-07-01  blaschke-oss DADescriptor equals/compareTo issue
22   */
23  
24  package org.metricshub.wbem.sblim.slp.internal.msg;
25  
26  /*-
27   * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
28   * WBEM Java Client
29   * ჻჻჻჻჻჻
30   * Copyright 2023 - 2025 MetricsHub
31   * ჻჻჻჻჻჻
32   * Licensed under the Apache License, Version 2.0 (the "License");
33   * you may not use this file except in compliance with the License.
34   * You may obtain a copy of the License at
35   *
36   *      http://www.apache.org/licenses/LICENSE-2.0
37   *
38   * Unless required by applicable law or agreed to in writing, software
39   * distributed under the License is distributed on an "AS IS" BASIS,
40   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
41   * See the License for the specific language governing permissions and
42   * limitations under the License.
43   * ╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱
44   */
45  
46  import java.util.Iterator;
47  import java.util.List;
48  import java.util.TreeSet;
49  import org.metricshub.wbem.sblim.slp.ServiceLocationAttribute;
50  
51  /**
52   * <pre>
53   * This class contains the DA related information from a DAAdvert message.
54   * URL
55   * Scope list
56   * Attribute list
57   * </pre>
58   */
59  public class DADescriptor implements Comparable<DADescriptor> {
60  	private String iURL;
61  
62  	private TreeSet<String> iScopeSet;
63  
64  	private List<ServiceLocationAttribute> iAttributes;
65  
66  	/**
67  	 * Ctor.
68  	 *
69  	 * @param pURL
70  	 * @param pScopeSet
71  	 *            - set of scope Strings
72  	 * @param pAttributes
73  	 *            - set of ServiceLocationAttributes
74  	 */
75  	public DADescriptor(String pURL, TreeSet<String> pScopeSet, List<ServiceLocationAttribute> pAttributes) {
76  		this.iURL = pURL;
77  		this.iScopeSet = pScopeSet;
78  		this.iAttributes = pAttributes;
79  	}
80  
81  	/**
82  	 * getURL
83  	 *
84  	 * @return String
85  	 */
86  	public String getURL() {
87  		return this.iURL;
88  	}
89  
90  	/**
91  	 * hasScope
92  	 *
93  	 * @param pScope
94  	 * @return boolean
95  	 */
96  	public boolean hasScope(String pScope) {
97  		if (this.iScopeSet == null) return false;
98  		return this.iScopeSet.contains(pScope);
99  	}
100 
101 	public int compareTo(DADescriptor o) {
102 		DADescriptor that = o;
103 		return this.iURL.compareTo(that.iURL);
104 	}
105 
106 	@Override
107 	public boolean equals(Object pObj) {
108 		if (!(pObj instanceof DADescriptor)) return false;
109 		DADescriptor that = (DADescriptor) pObj;
110 		return this.iURL.equals(that.iURL);
111 	}
112 
113 	private int iHashCode = 0;
114 
115 	private void incHashCode(int pHashCode) {
116 		this.iHashCode *= 31;
117 		this.iHashCode += pHashCode;
118 	}
119 
120 	/*
121 	 * hashCode has to be independent of the order of scopes and attributes
122 	 * (non-Javadoc)
123 	 *
124 	 * @see java.lang.Object#hashCode()
125 	 */
126 	@Override
127 	public int hashCode() {
128 		if (this.iHashCode == 0) {
129 			this.iHashCode = this.iURL.hashCode();
130 			Iterator<?> itr;
131 			if (this.iScopeSet != null) {
132 				itr = this.iScopeSet.iterator();
133 				while (itr.hasNext()) incHashCode(itr.next().hashCode());
134 			}
135 			if (this.iAttributes != null) {
136 				itr = this.iAttributes.iterator();
137 				/*
138 				 * iHasCode is simply incremented, because attribute order
139 				 * mustn't be considered.
140 				 */
141 				while (itr.hasNext()) this.iHashCode += itr.next().hashCode();
142 			}
143 		}
144 		return this.iHashCode;
145 	}
146 
147 	@Override
148 	public String toString() {
149 		StringBuffer strBuf = new StringBuffer("URL : " + this.iURL + "\nScopes : ");
150 		if (this.iScopeSet != null) {
151 			Iterator<String> itr = this.iScopeSet.iterator();
152 			boolean more = false;
153 			while (itr.hasNext()) {
154 				if (more) strBuf.append(", "); else more = true;
155 				strBuf.append(itr.next());
156 			}
157 		}
158 
159 		return strBuf.toString();
160 	}
161 }