ahat - An android heap dump viewer. Initial checkin.

ahat is an android-aware heap dump viewer based on perflib with a
simple html interface.

Change-Id: I7c18a7603dbbe735f778a95cd047f4f9ec1705ef

1 files changed, 63 insertions, 0 deletions

diff --git a/tools/ahat/src/ObjectsHandler.java b/tools/ahat/src/ObjectsHandler.java
new file mode 100644
index 0000000000..066c9d59cd
--- /dev/null
+++ b/tools/ahat/src/ObjectsHandler.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 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;
+
+import com.android.tools.perflib.heap.Instance;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+class ObjectsHandler extends AhatHandler {
+  public ObjectsHandler(AhatSnapshot snapshot) {
+    super(snapshot);
+  }
+
+  @Override
+  public void handle(Doc doc, Query query) throws IOException {
+    int stackId = query.getInt("stack", 0);
+    int depth = query.getInt("depth", 0);
+    String className = query.get("class", null);
+    String heapName = query.get("heap", null);
+    Site site = mSnapshot.getSite(stackId, depth);
+
+    List<Instance> insts = new ArrayList<Instance>();
+    for (Instance inst : site.getObjects()) {
+      if ((heapName == null || inst.getHeap().getName().equals(heapName))
+          && (className == null
+            || AhatSnapshot.getClassName(inst.getClassObj()).equals(className))) {
+        insts.add(inst);
+      }
+    }
+
+    Collections.sort(insts, Sort.defaultInstanceCompare(mSnapshot));
+
+    doc.title("Objects");
+    doc.table(
+        new Column("Size", Column.Align.RIGHT),
+        new Column("Heap"),
+        new Column("Object"));
+    for (Instance inst : insts) {
+      doc.row(
+          DocString.text("%,d", inst.getSize()),
+          DocString.text(inst.getHeap().getName()),
+          Value.render(inst));
+    }
+    doc.end();
+  }
+}
+