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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.AhatHeap;
     20 import com.android.ahat.heapdump.AhatSnapshot;
     21 import com.android.ahat.heapdump.Size;
     22 import java.io.File;
     23 import java.io.IOException;
     24 
     25 class OverviewHandler implements AhatHandler {
     26 
     27   private AhatSnapshot mSnapshot;
     28   private File mHprof;
     29   private File mBaseHprof;
     30 
     31   public OverviewHandler(AhatSnapshot snapshot, File hprof, File basehprof) {
     32     mSnapshot = snapshot;
     33     mHprof = hprof;
     34     mBaseHprof = basehprof;
     35   }
     36 
     37   @Override
     38   public void handle(Doc doc, Query query) throws IOException {
     39     doc.title("Overview");
     40 
     41     doc.section("General Information");
     42     doc.descriptions();
     43     doc.description(
     44         DocString.text("ahat version"),
     45         DocString.format("ahat-%s", OverviewHandler.class.getPackage().getImplementationVersion()));
     46     doc.description(DocString.text("hprof file"), DocString.text(mHprof.toString()));
     47     if (mBaseHprof != null) {
     48       doc.description(DocString.text("baseline hprof file"), DocString.text(mBaseHprof.toString()));
     49     }
     50     doc.end();
     51 
     52     doc.section("Bytes Retained by Heap");
     53     printHeapSizes(doc);
     54 
     55     doc.big(Menu.getMenu());
     56   }
     57 
     58   private void printHeapSizes(Doc doc) {
     59     SizeTable.table(doc, new Column("Heap"), mSnapshot.isDiffed());
     60     Size totalSize = Size.ZERO;
     61     Size totalBase = Size.ZERO;
     62     for (AhatHeap heap : mSnapshot.getHeaps()) {
     63       Size size = heap.getSize();
     64       Size base = heap.getBaseline().getSize();
     65       if (!size.isZero() || !base.isZero()) {
     66         SizeTable.row(doc, DocString.text(heap.getName()), size, base);
     67         totalSize = totalSize.plus(size);
     68         totalBase = totalBase.plus(base);
     69       }
     70     }
     71     SizeTable.row(doc, DocString.text("Total"), totalSize, totalBase);
     72     SizeTable.end(doc);
     73   }
     74 }
     75 
     76