001 /*
002 * JBoss, Home of Professional Open Source
003 * Copyright 2012 Red Hat Inc. and/or its affiliates and other contributors
004 * as indicated by the @author tags. All rights reserved.
005 * See the copyright.txt in the distribution for a
006 * full listing of individual contributors.
007 *
008 * This copyrighted material is made available to anyone wishing to use,
009 * modify, copy, or redistribute it subject to the terms and conditions
010 * of the GNU Lesser General Public License, v. 2.1.
011 * This program is distributed in the hope that it will be useful, but WITHOUT A
012 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
013 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
014 * You should have received a copy of the GNU Lesser General Public License,
015 * v.2.1 along with this distribution; if not, write to the Free Software
016 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
017 * MA 02110-1301, USA.
018 */
019 package org.switchyard.common.version;
020
021 import static org.switchyard.common.version.BaseVersion.compare;
022
023 import java.net.MalformedURLException;
024 import java.net.URI;
025 import java.net.URISyntaxException;
026 import java.net.URL;
027
028 /**
029 * BaseImplementation.
030 *
031 * @author David Ward <<a href="mailto:dward@jboss.org">dward@jboss.org</a>> (C) 2012 Red Hat Inc.
032 */
033 public class BaseImplementation implements Implementation {
034
035 private final String _title;
036 private final String _vendor;
037 private final String _vendorId;
038 private final URL _url;
039 // we maintain a URI internally for equals() and hashCode() since URLs perform name resolution during equals()
040 private final URI _uri;
041 private final String _version;
042
043 /**
044 * Constructs a new BaseImplementation.
045 * @param title the title
046 * @param vendor the vendor
047 * @param vendorId the vendorId
048 * @param url the url
049 * @param version the version
050 */
051 public BaseImplementation(String title, String vendor, String vendorId, URL url, String version) {
052 _title = title;
053 _vendor = vendor;
054 _vendorId = vendorId;
055 _url = url;
056 _uri = toURI(_url);
057 _version = version;
058 }
059
060 /**
061 * Constructs a new BaseImplementation.
062 * @param title the title
063 * @param vendor the vendor
064 * @param vendorId the vendorId
065 * @param url the url
066 * @param version the version
067 */
068 public BaseImplementation(String title, String vendor, String vendorId, String url, String version) {
069 _title = title;
070 _vendor = vendor;
071 _vendorId = vendorId;
072 _url = toURL(url);
073 _uri = toURI(_url);
074 _version = version;
075 }
076
077 /**
078 * {@inheritDoc}
079 */
080 @Override
081 public String getTitle() {
082 return _title;
083 }
084
085 /**
086 * {@inheritDoc}
087 */
088 @Override
089 public String getVendor() {
090 return _vendor;
091 }
092
093 /**
094 * {@inheritDoc}
095 */
096 @Override
097 public String getVendorId() {
098 return _vendorId;
099 }
100
101 /**
102 * {@inheritDoc}
103 */
104 @Override
105 public URL getURL() {
106 return _url;
107 }
108
109 /**
110 * {@inheritDoc}
111 */
112 @Override
113 public String getVersion() {
114 return _version;
115 }
116
117 /**
118 * {@inheritDoc}
119 */
120 @Override
121 public String toString() {
122 return String.format("%s [title=%s, vendor=%s, vendorId=%s, url=%s, version=%s]", Implementation.class.getSimpleName(), getTitle(), getVendor(), getVendorId(), getURL(), getVersion());
123 }
124
125 /**
126 * {@inheritDoc}
127 */
128 @Override
129 public boolean equals(Object obj) {
130 if (this == obj) {
131 return true;
132 }
133 if (obj == null) {
134 return false;
135 }
136 if (getClass() != obj.getClass()) {
137 return false;
138 }
139 BaseImplementation other = (BaseImplementation)obj;
140 if (_title == null) {
141 if (other._title != null) {
142 return false;
143 }
144 } else if (!_title.equals(other._title)) {
145 return false;
146 }
147 if (_vendor == null) {
148 if (other._vendor != null) {
149 return false;
150 }
151 } else if (!_vendor.equals(other._vendor)) {
152 return false;
153 }
154 if (_vendorId == null) {
155 if (other._vendorId != null) {
156 return false;
157 }
158 } else if (!_vendorId.equals(other._vendorId)) {
159 return false;
160 }
161 if (_uri == null) {
162 if (other._uri != null) {
163 return false;
164 }
165 } else if (!_uri.equals(other._uri)) {
166 return false;
167 }
168 if (_version == null) {
169 if (other._version != null) {
170 return false;
171 }
172 } else if (!_version.equals(other._version)) {
173 return false;
174 }
175 return true;
176 }
177
178 /**
179 * {@inheritDoc}
180 */
181 @Override
182 public int hashCode() {
183 final int prime = 31;
184 int result = 1;
185 result = prime * result + (_title == null ? 0 : _title.hashCode());
186 result = prime * result + (_vendor == null ? 0 : _vendor.hashCode());
187 result = prime * result + (_vendorId == null ? 0 : _vendorId.hashCode());
188 result = prime * result + (_uri == null ? 0 : _uri.hashCode());
189 result = prime * result + (_version == null ? 0 : _version.hashCode());
190 return result;
191 }
192
193 /**
194 * {@inheritDoc}
195 */
196 @Override
197 public int compareTo(Implementation that) {
198 int comparison = 0;
199 if (this != that) {
200 comparison = compare(_title, that.getTitle());
201 if (comparison == 0) {
202 comparison = compare(_vendor, that.getVendor());
203 if (comparison == 0) {
204 comparison = compare(_vendorId, that.getVendorId());
205 if (comparison == 0) {
206 comparison = compare(toString(_url), toString(that.getURL()));
207 if (comparison == 0) {
208 comparison = compare(_version, that.getVersion());
209 }
210 }
211 }
212 }
213 }
214 return comparison;
215 }
216
217 private URI toURI(URL url) {
218 if (url != null) {
219 try {
220 return url.toURI();
221 } catch (URISyntaxException usi) {
222 return null;
223 }
224 }
225 return null;
226 }
227
228 private URL toURL(String url) {
229 if (url != null) {
230 try {
231 return new URL(url);
232 } catch (MalformedURLException mue) {
233 return null;
234 }
235 }
236 return null;
237 }
238
239 private String toString(URL url) {
240 return url != null ? url.toString() : null;
241 }
242
243 }