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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.ahat.heapdump.AhatInstance;
     20 import com.android.ahat.heapdump.AhatSnapshot;
     21 import com.android.ahat.heapdump.Site;
     22 import com.android.ahat.heapdump.Sort;
     23 import java.io.IOException;
     24 import java.util.ArrayList;
     25 import java.util.Collections;
     26 import java.util.List;
     27 
     28 class ObjectsHandler implements AhatHandler {
     29   private static final String OBJECTS_ID = "objects";
     30 
     31   private AhatSnapshot mSnapshot;
     32 
     33   public ObjectsHandler(AhatSnapshot snapshot) {
     34     mSnapshot = snapshot;
     35   }
     36 
     37   @Override
     38   public void handle(Doc doc, Query query) throws IOException {
     39     int id = query.getInt("id", 0);
     40     int depth = query.getInt("depth", 0);
     41     String className = query.get("class", null);
     42     String heapName = query.get("heap", null);
     43     Site site = mSnapshot.getSite(id, depth);
     44 
     45     List<AhatInstance> insts = new ArrayList<AhatInstance>();
     46     for (AhatInstance inst : site.getObjects()) {
     47       if ((heapName == null || inst.getHeap().getName().equals(heapName))
     48           && (className == null || inst.getClassName().equals(className))) {
     49         insts.add(inst);
     50       }
     51     }
     52 
     53     Collections.sort(insts, Sort.defaultInstanceCompare(mSnapshot));
     54 
     55     doc.title("Objects");
     56 
     57     SizeTable.table(doc, mSnapshot.isDiffed(),
     58         new Column("Heap"),
     59         new Column("Object"));
     60 
     61     SubsetSelector<AhatInstance> selector = new SubsetSelector(query, OBJECTS_ID, insts);
     62     for (AhatInstance inst : selector.selected()) {
     63       AhatInstance base = inst.getBaseline();
     64       SizeTable.row(doc, inst.getSize(), base.getSize(),
     65           DocString.text(inst.getHeap().getName()),
     66           Summarizer.summarize(inst));
     67     }
     68     SizeTable.end(doc);
     69     selector.render(doc);
     70   }
     71 }
     72 
     73