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
17package com.android.ahat;
18
19import com.android.tools.perflib.heap.Heap;
20import java.io.IOException;
21import java.util.Collections;
22import java.util.Comparator;
23import java.util.List;
24
25class SiteHandler implements AhatHandler {
26  private static final String ALLOCATION_SITE_ID = "frames";
27  private static final String SITES_CALLED_ID = "called";
28  private static final String OBJECTS_ALLOCATED_ID = "objects";
29
30  private AhatSnapshot mSnapshot;
31
32  public SiteHandler(AhatSnapshot snapshot) {
33    mSnapshot = snapshot;
34  }
35
36  @Override
37  public void handle(Doc doc, Query query) throws IOException {
38    int stackId = query.getInt("stack", 0);
39    int depth = query.getInt("depth", -1);
40    Site site = mSnapshot.getSite(stackId, depth);
41
42    doc.title("Site %s", site.getName());
43    doc.section("Allocation Site");
44    SitePrinter.printSite(mSnapshot, doc, query, ALLOCATION_SITE_ID, site);
45
46    doc.section("Sites Called from Here");
47    List<Site> children = site.getChildren();
48    if (children.isEmpty()) {
49      doc.println(DocString.text("(none)"));
50    } else {
51      Collections.sort(children, new Sort.SiteBySize("app"));
52
53      HeapTable.TableConfig<Site> table = new HeapTable.TableConfig<Site>() {
54        public String getHeapsDescription() {
55          return "Reachable Bytes Allocated on Heap";
56        }
57
58        public long getSize(Site element, Heap heap) {
59          return element.getSize(heap.getName());
60        }
61
62        public List<HeapTable.ValueConfig<Site>> getValueConfigs() {
63          HeapTable.ValueConfig<Site> value = new HeapTable.ValueConfig<Site>() {
64            public String getDescription() {
65              return "Child Site";
66            }
67
68            public DocString render(Site element) {
69              return DocString.link(
70                  DocString.formattedUri("site?stack=%d&depth=%d",
71                    element.getStackId(), element.getStackDepth()),
72                  DocString.text(element.getName()));
73            }
74          };
75          return Collections.singletonList(value);
76        }
77      };
78      HeapTable.render(doc, query, SITES_CALLED_ID, table, mSnapshot, children);
79    }
80
81    doc.section("Objects Allocated");
82    doc.table(
83        new Column("Reachable Bytes Allocated", Column.Align.RIGHT),
84        new Column("Instances", Column.Align.RIGHT),
85        new Column("Heap"),
86        new Column("Class"));
87    List<Site.ObjectsInfo> infos = site.getObjectsInfos();
88    Comparator<Site.ObjectsInfo> compare = new Sort.WithPriority<Site.ObjectsInfo>(
89        new Sort.ObjectsInfoByHeapName(),
90        new Sort.ObjectsInfoBySize(),
91        new Sort.ObjectsInfoByClassName());
92    Collections.sort(infos, compare);
93    SubsetSelector<Site.ObjectsInfo> selector
94      = new SubsetSelector(query, OBJECTS_ALLOCATED_ID, infos);
95    for (Site.ObjectsInfo info : selector.selected()) {
96      String className = AhatSnapshot.getClassName(info.classObj);
97      doc.row(
98          DocString.format("%,14d", info.numBytes),
99          DocString.link(
100            DocString.formattedUri("objects?stack=%d&depth=%d&heap=%s&class=%s",
101                site.getStackId(), site.getStackDepth(), info.heap.getName(), className),
102            DocString.format("%,14d", info.numInstances)),
103          DocString.text(info.heap.getName()),
104          Value.render(mSnapshot, info.classObj));
105    }
106    doc.end();
107    selector.render(doc);
108  }
109}
110
111