platform/lang-api/src/com/intellij/facet/ui/libraries/LibraryInfo.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
  17 package com.intellij.facet.ui.libraries;
  18
  19 import org.jetbrains.annotations.NonNls;
  20 import org.jetbrains.annotations.Nullable;
  21
  22 import java.util.Arrays;
  23
  24 /**
  25  * @author nik
  26  */
  27 public class LibraryInfo {
  28   public static final LibraryInfo[] EMPTY_ARRAY = new LibraryInfo[0];
  29   private @Nullable final LibraryDownloadInfo myDownloadInfo;
  30   private @NonNls final String myPresentableName;
  31   private @NonNls final String[] myRequiredClasses;
  32
  33   public LibraryInfo(final @NonNls String presentableName, final @Nullable @NonNls String version,
  34                          final @Nullable @NonNls String downloadingUrl,
  35                      final @Nullable String presentableUrl, final @NonNls String... requiredClasses) {
  36     myPresentableName = presentableName;
  37     myRequiredClasses = requiredClasses;
  38     if (downloadingUrl != null) {
  39       int dot = presentableName.lastIndexOf('.');
  40       String prefix = presentableName.substring(0, dot);
  41       String suffix = presentableName.substring(dot);
  42       myDownloadInfo = new LibraryDownloadInfo(downloadingUrl, presentableUrl, prefix, suffix);
  43     }
  44     else {
  45       myDownloadInfo = null;
  46     }
  47   }
  48
  49   public LibraryInfo(final @NonNls String presentableName, final @Nullable LibraryDownloadInfo downloadInfo, String... requiredClasses) {
  50     myPresentableName = presentableName;
  51     myRequiredClasses = requiredClasses;
  52     myDownloadInfo = downloadInfo;
  53   }
  54
  55   @NonNls
  56   public String getPresentableName() {
  57     return myPresentableName;
  58   }
  59
  60   @NonNls
  61   public String[] getRequiredClasses() {
  62     return myRequiredClasses;
  63   }
  64
  65   @Nullable
  66   public LibraryDownloadInfo getDownloadingInfo() {
  67     return myDownloadInfo;
  68   }
  69
  70   public boolean equals(final Object o) {
  71     if (this == o) return true;
  72     if (o == null || getClass() != o.getClass()) return false;
  73
  74     final LibraryInfo that = (LibraryInfo)o;
  75
  76     if (myDownloadInfo != null ? !myDownloadInfo.equals(that.myDownloadInfo) : that.myDownloadInfo != null) return false;
  77     if (!myPresentableName.equals(that.myPresentableName)) return false;
  78     if (!Arrays.equals(myRequiredClasses, that.myRequiredClasses)) return false;
  79
  80     return true;
  81   }
  82
  83   public int hashCode() {
  84     int result;
  85     result = (myDownloadInfo != null ? myDownloadInfo.hashCode() : 0);
  86     result = 31 * result + myPresentableName.hashCode();
  87     result = 31 * result + Arrays.hashCode(myRequiredClasses);
  88     return result;
  89   }
  90 }