collect statistics about custom libraries

java/idea-ui/src/com/intellij/openapi/roots/ui/configuration/libraries/impl/LibraryUsageCollector.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2000-2011 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.openapi.roots.ui.configuration.libraries.impl;
+
+import com.intellij.internal.statistic.UsagesCollector;
+import com.intellij.internal.statistic.beans.GroupDescriptor;
+import com.intellij.internal.statistic.beans.UsageDescriptor;
+import com.intellij.openapi.module.Module;
+import com.intellij.openapi.module.ModuleManager;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.roots.ModuleRootManager;
+import com.intellij.openapi.roots.libraries.Library;
+import com.intellij.openapi.roots.libraries.LibraryKind;
+import com.intellij.util.Processor;
+import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.*;
+
+/**
+ * @author nik
+ */
+public class LibraryUsageCollector extends UsagesCollector {
+  @NonNls private static final String GROUP_ID = "libraries";
+
+  @NotNull
+  @Override
+  public Set<UsageDescriptor> getUsages(@Nullable Project project) {
+    if (project == null) return Collections.emptySet();
+
+    final Set<LibraryKind<?>> usedKinds = new HashSet<LibraryKind<?>>();
+    final Processor<Library> processor = new Processor<Library>() {
+      @Override
+      public boolean process(Library library) {
+        usedKinds.addAll(LibraryPresentationManagerImpl.getLibraryKinds(library, null));
+        return true;
+      }
+    };
+    for (Module module : ModuleManager.getInstance(project).getModules()) {
+      ModuleRootManager.getInstance(module).orderEntries().librariesOnly().forEachLibrary(processor);
+    }
+
+    final HashSet<UsageDescriptor> usageDescriptors = new HashSet<UsageDescriptor>();
+    for (LibraryKind<?> kind : usedKinds) {
+      final GroupDescriptor group = GroupDescriptor.create(GROUP_ID);
+      usageDescriptors.add(new UsageDescriptor(group, kind.getKindId(), 1));
+    }
+    return usageDescriptors;
+  }
+
+  @NotNull
+  @Override
+  public String getGroupId() {
+    return GROUP_ID;
+  }
+}

resources/src/META-INF/IdeaPlugin.xml

@@ -868,6 +868,8 @@
                      implementationClass="com.intellij.openapi.roots.ui.configuration.libraryEditor.SourcesOrderRootTypeUIFactory"/>
     <OrderRootTypeUI key="DOCUMENTATION"
                      implementationClass="com.intellij.openapi.roots.ui.configuration.libraryEditor.DocumentationOrderRootTypeUIFactory"/>
+    <statistics.usagesCollector implementation="com.intellij.openapi.roots.ui.configuration.libraries.impl.LibraryUsageCollector"/>
+
 
     <getDataRule key="analysisScope" implementationClass="com.intellij.analysis.AnalysisScopeRule"/>
     <getDataRule key="context.ProjectFileDirectory" implementationClass="com.intellij.ide.impl.dataRules.ProjectFileDirectoryRule"/>