1 files changed, 115 insertions, 0 deletions
diff --git a/tools/ahat/src/heapdump/AhatClassObj.java b/tools/ahat/src/heapdump/AhatClassObj.java
new file mode 100644
index 0000000000..c5ade1d405
--- /dev/null
+++ b/tools/ahat/src/heapdump/AhatClassObj.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * 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.android.ahat.heapdump;
+
+import com.android.tools.perflib.heap.ClassObj;
+import com.android.tools.perflib.heap.Field;
+import com.android.tools.perflib.heap.Instance;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+public class AhatClassObj extends AhatInstance {
+  private String mClassName;
+  private AhatClassObj mSuperClassObj;
+  private AhatInstance mClassLoader;
+  private FieldValue[] mStaticFieldValues;
+
+  public AhatClassObj(long id) {
+    super(id);
+  }
+
+  @Override void initialize(AhatSnapshot snapshot, Instance inst) {
+    super.initialize(snapshot, inst);
+
+    ClassObj classObj = (ClassObj)inst;
+    mClassName = classObj.getClassName();
+
+    ClassObj superClassObj = classObj.getSuperClassObj();
+    if (superClassObj != null) {
+      mSuperClassObj = snapshot.findClassObj(superClassObj.getId());
+    }
+
+    Instance loader = classObj.getClassLoader();
+    if (loader != null) {
+      mClassLoader = snapshot.findInstance(loader.getId());
+    }
+
+    Collection<Map.Entry<Field, Object>> fieldValues = classObj.getStaticFieldValues().entrySet();
+    mStaticFieldValues = new FieldValue[fieldValues.size()];
+    int index = 0;
+    for (Map.Entry<Field, Object> field : fieldValues) {
+      String name = field.getKey().getName();
+      String type = field.getKey().getType().toString();
+      Value value = snapshot.getValue(field.getValue());
+      mStaticFieldValues[index++] = new FieldValue(name, type, value);
+
+      if (field.getValue() instanceof Instance) {
+        Instance ref = (Instance)field.getValue();
+        if (ref.getNextInstanceToGcRoot() == inst) {
+          value.asAhatInstance().setNextInstanceToGcRoot(this, "." + name);
+        }
+      }
+    }
+  }
+
+  /**
+   * Returns the name of the class this is a class object for.
+   */
+  public String getName() {
+    return mClassName;
+  }
+
+  /**
+   * Returns the superclass of this class object.
+   */
+  public AhatClassObj getSuperClassObj() {
+    return mSuperClassObj;
+  }
+
+  /**
+   * Returns the class loader of this class object.
+   */
+  public AhatInstance getClassLoader() {
+    return mClassLoader;
+  }
+
+  /**
+   * Returns the static field values for this class object.
+   */
+  public List<FieldValue> getStaticFieldValues() {
+    return Arrays.asList(mStaticFieldValues);
+  }
+
+  @Override public boolean isClassObj() {
+    return true;
+  }
+
+  @Override public AhatClassObj asClassObj() {
+    return this;
+  }
+
+  @Override public String toString() {
+    return mClassName;
+  }
+
+  @Override AhatInstance newPlaceHolderInstance() {
+    return new AhatPlaceHolderClassObj(this);
+  }
+}
+