EDU-277 Implement separate feature usage statistics for PyCharm Educational Edition

python/educational-core/student/resources/META-INF/plugin.xml

@@ -98,6 +98,8 @@
     <extendWordSelectionHandler implementation="com.jetbrains.edu.learning.StudyAnswerPlaceholderExtendWordHandler"/>
     <renameHandler implementation="com.jetbrains.edu.learning.StudyRenameHandler"/>
     <refactoring.moveHandler implementation="com.jetbrains.edu.learning.StudyMoveDelegate" order="first"/>
+
+    <statistics.usagesCollector implementation="com.jetbrains.edu.learning.statistics.EduUsagesCollector"/>
   </extensions>
   <extensions defaultExtensionNs="Edu">
     <optionsProvider instance="com.jetbrains.edu.learning.stepic.StepicStudyOptions"/>

python/educational-core/student/src/com/jetbrains/edu/learning/statistics/EduUsagesCollector.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2000-2016 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.jetbrains.edu.learning.statistics;
+
+import com.intellij.internal.statistic.AbstractApplicationUsagesCollector;
+import com.intellij.internal.statistic.CollectUsagesException;
+import com.intellij.internal.statistic.beans.GroupDescriptor;
+import com.intellij.internal.statistic.beans.UsageDescriptor;
+import com.intellij.openapi.project.Project;
+import com.jetbrains.edu.learning.StudyTaskManager;
+import com.jetbrains.edu.learning.core.EduNames;
+import com.jetbrains.edu.learning.courseFormat.Course;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public class EduUsagesCollector extends AbstractApplicationUsagesCollector {
+  private static final String GROUP_ID = "educational-course";
+
+  @NotNull
+  @Override
+  public Set<UsageDescriptor> getProjectUsages(@NotNull Project project) throws CollectUsagesException {
+    final Set<UsageDescriptor> result = new HashSet<UsageDescriptor>();
+
+    final Course course = StudyTaskManager.getInstance(project).getCourse();
+    if (course != null) {
+      if (course.isAdaptive()) {
+        result.add(new UsageDescriptor("Adaptive", 1));
+      }
+      else if (EduNames.STUDY.equals(course.getCourseMode())) {
+        result.add(new UsageDescriptor(EduNames.STUDY, 1));
+      }
+      else {
+        result.add(new UsageDescriptor("Course Creator", 1));
+      }
+    }
+    return result;
+  }
+
+  @NotNull
+  @Override
+  public GroupDescriptor getGroupId() {
+    return GroupDescriptor.create(GROUP_ID);
+  }
+}