plugins/svn4idea/src/org/jetbrains/idea/svn/SvnRevisionNumber.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   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.jetbrains.idea.svn;
  17
  18 import com.intellij.openapi.vcs.history.VcsRevisionNumber;
  19 import org.jetbrains.annotations.NotNull;
  20 import org.tmatesoft.svn.core.wc.SVNRevision;
  21
  22 /**
  23  * Created by IntelliJ IDEA.
  24  * User: alex
  25  * Date: 08.06.2005
  26  * Time: 22:29:32
  27  * To change this template use File | Settings | File Templates.
  28  */
  29 public class SvnRevisionNumber implements VcsRevisionNumber {
  30   @NotNull
  31   private final SVNRevision myRevision;
  32
  33   public SvnRevisionNumber(@NotNull SVNRevision revision) {
  34     myRevision = revision;
  35   }
  36
  37   public String asString() {
  38     return myRevision.toString();
  39   }
  40
  41   public int compareTo(VcsRevisionNumber vcsRevisionNumber) {
  42     if (vcsRevisionNumber == null || vcsRevisionNumber.getClass() != SvnRevisionNumber.class) {
  43       return -1;
  44     }
  45     SVNRevision rev = ((SvnRevisionNumber)vcsRevisionNumber).myRevision;
  46     if (!myRevision.isValid()) {
  47       return !rev.isValid() ? 0 : -1;
  48     }
  49     if (myRevision.getNumber() >= 0 && rev.getNumber() >= 0) {
  50       return myRevision.getNumber() == rev.getNumber() ? 0 : myRevision.getNumber() > rev.getNumber() ? 1 : -1;
  51     }
  52     else if (myRevision.getDate() != null && rev.getDate() != null) {
  53       return myRevision.getDate().compareTo(rev.getDate());
  54     }
  55     if (myRevision.equals(SVNRevision.HEAD)) {
  56       return rev.equals(SVNRevision.HEAD) ? 0 : 1;    // HEAD is greater than a specific rev
  57     }
  58     return myRevision.getID() == rev.getID() ? 0 : myRevision.getID() > rev.getID() ? 1 : -1;
  59   }
  60
  61   public SVNRevision getRevision() {
  62     return myRevision;
  63   }
  64
  65   public boolean equals(final Object o) {
  66     if (this == o) return true;
  67     if (o == null || getClass() != o.getClass()) return false;
  68
  69     final SvnRevisionNumber that = (SvnRevisionNumber)o;
  70
  71     return myRevision.equals(that.myRevision);
  72
  73   }
  74
  75   public int hashCode() {
  76     return myRevision.hashCode();
  77   }
  78
  79   public String toString() {
  80     return myRevision.toString();
  81   }
  82 }