org.argeo.slc.api/src/org/argeo/slc/DefaultNameVersion.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc;
  17
  18
  19 /** Canonical implementation of {@link NameVersion} */
  20 public class DefaultNameVersion implements NameVersion,
  21                 Comparable<NameVersion> {
  22         private String name;
  23         private String version;
  24
  25         public DefaultNameVersion() {
  26         }
  27
  28         /** Interprets string in OSGi-like format my.module.name;version=0.0.0 */
  29         public DefaultNameVersion(String nameVersion) {
  30                 int index = nameVersion.indexOf(";version=");
  31                 if (index < 0) {
  32                         setName(nameVersion);
  33                         setVersion(null);
  34                 } else {
  35                         setName(nameVersion.substring(0, index));
  36                         setVersion(nameVersion.substring(index + ";version=".length()));
  37                 }
  38         }
  39
  40         public DefaultNameVersion(String name, String version) {
  41                 this.name = name;
  42                 this.version = version;
  43         }
  44
  45         public DefaultNameVersion(NameVersion nameVersion) {
  46                 this.name = nameVersion.getName();
  47                 this.version = nameVersion.getVersion();
  48         }
  49
  50         public String getName() {
  51                 return name;
  52         }
  53
  54         public void setName(String name) {
  55                 this.name = name;
  56         }
  57
  58         public String getVersion() {
  59                 return version;
  60         }
  61
  62         public void setVersion(String version) {
  63                 this.version = version;
  64         }
  65
  66         @Override
  67         public boolean equals(Object obj) {
  68                 if (obj instanceof NameVersion) {
  69                         NameVersion nameVersion = (NameVersion) obj;
  70                         return name.equals(nameVersion.getName())
  71                                         && version.equals(nameVersion.getVersion());
  72                 } else
  73                         return false;
  74         }
  75
  76         @Override
  77         public int hashCode() {
  78                 return name.hashCode();
  79         }
  80
  81         @Override
  82         public String toString() {
  83                 return name + ":" + version;
  84         }
  85
  86         public int compareTo(NameVersion o) {
  87                 if (o.getName().equals(name))
  88                         return version.compareTo(o.getVersion());
  89                 else
  90                         return name.compareTo(o.getName());
  91         }
  92 }