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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.ahat;
     18 
     19 import com.android.tools.perflib.heap.Instance;
     20 import java.io.IOException;
     21 import java.util.ArrayList;
     22 import java.util.Collections;
     23 import java.util.List;
     24 
     25 class ObjectsHandler implements AhatHandler {
     26   private static final String OBJECTS_ID = "objects";
     27 
     28   private AhatSnapshot mSnapshot;
     29 
     30   public ObjectsHandler(AhatSnapshot snapshot) {
     31     mSnapshot = snapshot;
     32   }
     33 
     34   @Override
     35   public void handle(Doc doc, Query query) throws IOException {
     36     int stackId = query.getInt("stack", 0);
     37     int depth = query.getInt("depth", 0);
     38     String className = query.get("class", null);
     39     String heapName = query.get("heap", null);
     40     Site site = mSnapshot.getSite(stackId, depth);
     41 
     42     List<Instance> insts = new ArrayList<Instance>();
     43     for (Instance inst : site.getObjects()) {
     44       if ((heapName == null || inst.getHeap().getName().equals(heapName))
     45           && (className == null
     46             || AhatSnapshot.getClassName(inst.getClassObj()).equals(className))) {
     47         insts.add(inst);
     48       }
     49     }
     50 
     51     Collections.sort(insts, Sort.defaultInstanceCompare(mSnapshot));
     52 
     53     doc.title("Objects");
     54     doc.table(
     55         new Column("Size", Column.Align.RIGHT),
     56         new Column("Heap"),
     57         new Column("Object"));
     58     SubsetSelector<Instance> selector = new SubsetSelector(query, OBJECTS_ID, insts);
     59     for (Instance inst : selector.selected()) {
     60       doc.row(
     61           DocString.format("%,d", inst.getSize()),
     62           DocString.text(inst.getHeap().getName()),
     63           Value.render(mSnapshot, inst));
     64     }
     65     doc.end();
     66     selector.render(doc);
     67   }
     68 }
     69 
     70