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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 
SiteHandler(AhatSnapshot snapshot)35   public SiteHandler(AhatSnapshot snapshot) {
36     mSnapshot = snapshot;
37   }
38 
39   @Override
handle(Doc doc, Query query)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);
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 
84     doc.table(
85         new Column("Reachable Bytes Allocated", Column.Align.RIGHT),
86         new Column("Δ", Column.Align.RIGHT, mSnapshot.isDiffed()),
87         new Column("Instances", Column.Align.RIGHT),
88         new Column("Δ", Column.Align.RIGHT, mSnapshot.isDiffed()),
89         new Column("Heap"),
90         new Column("Class"));
91 
92     List<Site.ObjectsInfo> infos = site.getObjectsInfos();
93     Comparator<Site.ObjectsInfo> compare = new Sort.WithPriority<Site.ObjectsInfo>(
94         Sort.OBJECTS_INFO_BY_HEAP_NAME,
95         Sort.OBJECTS_INFO_BY_SIZE,
96         Sort.OBJECTS_INFO_BY_CLASS_NAME);
97     Collections.sort(infos, compare);
98     SubsetSelector<Site.ObjectsInfo> selector
99       = new SubsetSelector(query, OBJECTS_ALLOCATED_ID, infos);
100     for (Site.ObjectsInfo info : selector.selected()) {
101       Site.ObjectsInfo baseinfo = info.getBaseline();
102       String className = info.getClassName();
103       doc.row(
104           DocString.format("%,14d", info.numBytes),
105           DocString.delta(false, false, info.numBytes, baseinfo.numBytes),
106           DocString.link(
107             DocString.formattedUri("objects?id=%d&depth=%d&heap=%s&class=%s",
108               site.getId(), site.getDepth(), info.heap.getName(), className),
109             DocString.format("%,14d", info.numInstances)),
110           DocString.delta(false, false, info.numInstances, baseinfo.numInstances),
111           DocString.text(info.heap.getName()),
112           Summarizer.summarize(info.classObj));
113     }
114     doc.end();
115     selector.render(doc);
116   }
117 }
118 
119