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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.Site;
     22 import com.android.ahat.heapdump.Sort;
     23 import java.io.IOException;
     24 import java.util.Collections;
     25 import java.util.Comparator;
     26 import java.util.List;
     27 
     28 class SiteHandler implements AhatHandler {
     29   private static final String ALLOCATION_SITE_ID = "frames";
     30   private static final String SITES_CALLED_ID = "called";
     31   private static final String OBJECTS_ALLOCATED_ID = "objects";
     32 
     33   private AhatSnapshot mSnapshot;
     34 
     35   public SiteHandler(AhatSnapshot snapshot) {
     36     mSnapshot = snapshot;
     37   }
     38 
     39   @Override
     40   public void handle(Doc doc, Query query) throws IOException {
     41     int id = query.getInt("id", 0);
     42     int depth = query.getInt("depth", 0);
     43     Site site = mSnapshot.getSite(id, depth);
     44 
     45     doc.title("Site");
     46     doc.big(Summarizer.summarize(site));
     47 
     48     doc.section("Allocation Site");
     49     SitePrinter.printSite(mSnapshot, doc, query, ALLOCATION_SITE_ID, site);
     50 
     51     doc.section("Sites Called from Here");
     52     List<Site> children = site.getChildren();
     53     if (children.isEmpty()) {
     54       doc.println(DocString.text("(none)"));
     55     } else {
     56       Collections.sort(children, Sort.defaultSiteCompare(mSnapshot));
     57       HeapTable.TableConfig<Site> table = new HeapTable.TableConfig<Site>() {
     58         public String getHeapsDescription() {
     59           return "Reachable Bytes Allocated on Heap";
     60         }
     61 
     62         public long getSize(Site element, AhatHeap heap) {
     63           return element.getSize(heap).getSize();
     64         }
     65 
     66         public List<HeapTable.ValueConfig<Site>> getValueConfigs() {
     67           HeapTable.ValueConfig<Site> value = new HeapTable.ValueConfig<Site>() {
     68             public String getDescription() {
     69               return "Child Site";
     70             }
     71 
     72             public DocString render(Site element) {
     73               return Summarizer.summarize(element);
     74             }
     75           };
     76           return Collections.singletonList(value);
     77         }
     78       };
     79       HeapTable.render(doc, query, SITES_CALLED_ID, table, mSnapshot, children);
     80     }
     81 
     82     doc.section("Objects Allocated");
     83     SizeTable.table(doc, mSnapshot.isDiffed(),
     84         new Column("Instances", Column.Align.RIGHT),
     85         new Column("", Column.Align.RIGHT, mSnapshot.isDiffed()),
     86         new Column("Heap"),
     87         new Column("Class"));
     88 
     89     List<Site.ObjectsInfo> infos = site.getObjectsInfos();
     90     Comparator<Site.ObjectsInfo> compare = new Sort.WithPriority<Site.ObjectsInfo>(
     91         Sort.OBJECTS_INFO_BY_HEAP_NAME,
     92         Sort.OBJECTS_INFO_BY_SIZE,
     93         Sort.OBJECTS_INFO_BY_CLASS_NAME);
     94     Collections.sort(infos, compare);
     95     SubsetSelector<Site.ObjectsInfo> selector
     96       = new SubsetSelector(query, OBJECTS_ALLOCATED_ID, infos);
     97     for (Site.ObjectsInfo info : selector.selected()) {
     98       Site.ObjectsInfo baseinfo = info.getBaseline();
     99       String className = info.getClassName();
    100       SizeTable.row(doc, info.numBytes, baseinfo.numBytes,
    101           DocString.link(
    102             DocString.formattedUri("objects?id=%d&depth=%d&heap=%s&class=%s",
    103               site.getId(), site.getDepth(), info.heap.getName(), className),
    104             DocString.format("%,14d", info.numInstances)),
    105           DocString.delta(false, false, info.numInstances, baseinfo.numInstances),
    106           DocString.text(info.heap.getName()),
    107           Summarizer.summarize(info.classObj));
    108     }
    109     SizeTable.end(doc);
    110     selector.render(doc);
    111   }
    112 }
    113 
    114