1 files changed, 76 insertions, 0 deletions
diff --git a/platform/duplicates-analysis/src/com/intellij/dupLocator/DuplicatesProfileCache.java b/platform/duplicates-analysis/src/com/intellij/dupLocator/DuplicatesProfileCache.java
new file mode 100644
index 000000000000..db9ff875e9bf
--- /dev/null
+++ b/platform/duplicates-analysis/src/com/intellij/dupLocator/DuplicatesProfileCache.java
@@ -0,0 +1,76 @@
+package com.intellij.dupLocator;
+
+import com.intellij.dupLocator.treeHash.FragmentsCollector;
+import com.intellij.lang.Language;
+import com.intellij.openapi.extensions.Extensions;
+import gnu.trove.TIntObjectHashMap;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Created by IntelliJ IDEA.
+ * User: Eugene.Kudelevsky
+ * Date: May 18, 2009
+ * Time: 7:39:35 PM
+ * To change this template use File | Settings | File Templates.
+ */
+public class DuplicatesProfileCache {
+  private static final Map<DupInfo, TIntObjectHashMap<DuplicatesProfile>> ourProfileCache = new HashMap<DupInfo, TIntObjectHashMap<DuplicatesProfile>>();
+
+  private DuplicatesProfileCache() {
+  }
+
+  public static void clear(@NotNull DupInfo info) {
+    ourProfileCache.remove(info);
+  }
+
+  @Nullable
+  public static DuplicatesProfile getProfile(@NotNull DupInfo dupInfo, int index) {
+    TIntObjectHashMap<DuplicatesProfile> patternCache = ourProfileCache.get(dupInfo);
+    if (patternCache == null) {
+      patternCache = new TIntObjectHashMap<DuplicatesProfile>();
+      ourProfileCache.put(dupInfo, patternCache);
+    }
+    DuplicatesProfile result = patternCache.get(index);
+    if (result == null) {
+      DuplicatesProfile[] profiles = Extensions.getExtensions(DuplicatesProfile.EP_NAME);
+      DuplicatesProfile theProfile = null;
+      for (DuplicatesProfile profile : profiles) {
+        if (profile.isMyDuplicate(dupInfo, index)) {
+          theProfile = profile;
+          break;
+        }
+      }
+      result = theProfile == null ? NULL_PROFILE : theProfile;
+      patternCache.put(index, result);
+    }
+    return result == NULL_PROFILE ? null : result;
+  }
+
+  private static final DuplicatesProfile NULL_PROFILE = new DuplicatesProfile() {
+    @NotNull
+    @Override
+    public DuplocateVisitor createVisitor(@NotNull FragmentsCollector collector) {
+      return null;
+    }
+
+    @Override
+    public boolean isMyLanguage(@NotNull Language language) {
+      return false;
+    }
+
+    @NotNull
+    @Override
+    public DuplocatorState getDuplocatorState(@NotNull Language language) {
+      return null;
+    }
+
+    @Override
+    public boolean isMyDuplicate(@NotNull DupInfo info, int index) {
+      return false;
+    }
+  };
+}