bundles/org.simantics.db.common/src/org/simantics/db/common/utils/VersionMap.java

   1 package org.simantics.db.common.utils;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.Collection;\r
   5 import java.util.List;\r
   6 \r
   7 import org.simantics.db.ReadGraph;\r
   8 import org.simantics.db.Resource;\r
   9 import org.simantics.db.common.NamedResource;\r
  10 import org.simantics.db.exception.DatabaseException;\r
  11 import org.simantics.utils.datastructures.MapList;\r
  12 import org.simantics.utils.strings.AlphanumComparator;\r
  13 \r
  14 public class VersionMap extends MapList<String,NamedResource> {\r
  15 \r
  16         public NamedResource getNewest(ReadGraph graph, String baseName) {\r
  17                 List<NamedResource> versions = getValuesUnsafe(baseName);\r
  18                 if(versions == null || versions.isEmpty()) return null;\r
  19                 NamedResource result = versions.get(0);\r
  20                 for(int i=1;i<versions.size();i++) {\r
  21                         NamedResource version = versions.get(i);\r
  22                         if(AlphanumComparator.COMPARATOR.compare(version.getName(), result) > 0) result = version;\r
  23                 }\r
  24                 return result;\r
  25         }\r
  26         \r
  27         public Collection<NamedResource> getOlderOrEqualVersions(ReadGraph graph, Resource artifact) throws DatabaseException {\r
  28                 String baseName = Versions.getBaseName(graph, artifact);\r
  29                 String version = Versions.getVersion(graph, artifact);\r
  30                 List<NamedResource> versions = getValuesUnsafe(baseName);\r
  31                 if(versions == null || versions.isEmpty()) return null;\r
  32                 ArrayList<NamedResource> result = new ArrayList<NamedResource>();\r
  33                 for(NamedResource nr : versions) {\r
  34                         if(AlphanumComparator.COMPARATOR.compare(nr.getName(), version) <= 0) result.add(nr);\r
  35                 }\r
  36                 return result;\r
  37         }\r
  38 \r
  39         public Collection<NamedResource> getNewerOrEqualVersions(ReadGraph graph, Resource artifact) throws DatabaseException {\r
  40                 String baseName = Versions.getBaseName(graph, artifact);\r
  41                 String version = Versions.getVersion(graph, artifact);\r
  42                 List<NamedResource> versions = getValuesUnsafe(baseName);\r
  43                 if(versions == null || versions.isEmpty()) return null;\r
  44                 ArrayList<NamedResource> result = new ArrayList<NamedResource>();\r
  45                 for(NamedResource nr : versions) {\r
  46                         if(AlphanumComparator.COMPARATOR.compare(nr.getName(), version) >= 0) result.add(nr);\r
  47                 }\r
  48                 return result;\r
  49         }\r
  50         \r
  51         public boolean contains(String baseName, String version) {\r
  52                 List<NamedResource> versions = getValuesUnsafe(baseName);\r
  53                 if(versions == null || versions.isEmpty()) return false;\r
  54                 for(NamedResource nr : versions) {\r
  55                         if(nr.getName().equals(version)) return true;\r
  56                 }\r
  57                 return false;\r
  58         }\r
  59         \r
  60 }\r