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11 package org.eclipse.osgi.framework.stats;
12
13 import java.io.*;
14 import java.util.*;
15 import org.eclipse.osgi.framework.adaptor.BundleWatcher;
16 import org.eclipse.osgi.framework.adaptor.FrameworkAdaptor;
17 import org.eclipse.osgi.framework.debug.DebugOptions;
18 import org.osgi.framework.Bundle;
19
20 public class StatsManager implements BundleWatcher {
21 private Hashtable plugins = new Hashtable(20);
24 private Map activationStacks = new HashMap(5);
25 private static boolean booting = true;
28 private static StatsManager defaultInstance;
29
30 public static boolean MONITOR_ACTIVATION = false;
31 public static boolean MONITOR_CLASSES = false;
32 public static boolean MONITOR_RESOURCES = false;
33 public static String  TRACE_FILENAME = "runtime.traces"; public static String TRACE_FILTERS = "trace.properties"; public static boolean TRACE_CLASSES = false;
36 public static boolean TRACE_BUNDLES = false;
37 public static final String FRAMEWORK_SYMBOLICNAME = "org.eclipse.osgi";
39 private static final String OPTION_MONITOR_ACTIVATION = FRAMEWORK_SYMBOLICNAME + "/monitor/activation"; private static final String OPTION_MONITOR_CLASSES = FRAMEWORK_SYMBOLICNAME + "/monitor/classes"; private static final String OPTION_MONITOR_RESOURCES = FRAMEWORK_SYMBOLICNAME + "/monitor/resources"; private static final String OPTION_TRACE_BUNDLES = FRAMEWORK_SYMBOLICNAME + "/trace/activation"; private static final String OPTION_TRACE_CLASSES = FRAMEWORK_SYMBOLICNAME + "/trace/classLoading"; private static final String OPTION_TRACE_FILENAME = FRAMEWORK_SYMBOLICNAME + "/trace/filename"; private static final String OPTION_TRACE_FILTERS = FRAMEWORK_SYMBOLICNAME + "/trace/filters";
48 static {
49 setDebugOptions();
50 }
51
52 public static StatsManager getDefault() {
53 if (defaultInstance == null) {
54 defaultInstance = new StatsManager();
55 defaultInstance.initialize();
56 }
57 return defaultInstance;
58 }
59
60 public static void setDebugOptions() {
61 DebugOptions options = DebugOptions.getDefault();
62 if (options == null)
64 return;
65 MONITOR_ACTIVATION = options.getBooleanOption(OPTION_MONITOR_ACTIVATION, false);
66 MONITOR_CLASSES = options.getBooleanOption(OPTION_MONITOR_CLASSES, false);
67 MONITOR_RESOURCES = options.getBooleanOption(OPTION_MONITOR_RESOURCES, false);
68 TRACE_CLASSES = options.getBooleanOption(OPTION_TRACE_CLASSES, false);
69 TRACE_BUNDLES = options.getBooleanOption(OPTION_TRACE_BUNDLES, false);
70 TRACE_FILENAME = options.getOption(OPTION_TRACE_FILENAME, TRACE_FILENAME);
71 TRACE_FILTERS = options.getOption(OPTION_TRACE_FILTERS, TRACE_FILTERS);
72 }
73
74 public static void doneBooting() {
75 booting = false;
76 }
77
78 public static boolean isBooting() {
79 return booting;
80 }
81
82
88 public static String [] getArrayFromList(String prop) {
89 if (prop == null || prop.trim().equals("")) return new String [0];
91 Vector list = new Vector();
92 StringTokenizer tokens = new StringTokenizer(prop, ","); while (tokens.hasMoreTokens()) {
94 String token = tokens.nextToken().trim();
95 if (!token.equals("")) list.addElement(token);
97 }
98 return list.isEmpty() ? new String [0] : (String []) list.toArray(new String [list.size()]);
99 }
100
101 private void initialize() {
102 BundleStats plugin = findPlugin(FrameworkAdaptor.FRAMEWORK_SYMBOLICNAME);
104 plugin.setTimestamp(System.currentTimeMillis());
105 plugin.setActivationOrder(plugins.size());
106 plugin.setDuringStartup(booting);
107 }
108
109 public void startActivation(Bundle bundle) {
110 BundleStats plugin = findPlugin(bundle.getSymbolicName());
112 plugin.setTimestamp(System.currentTimeMillis());
113 plugin.setActivationOrder(plugins.size());
114 plugin.setDuringStartup(booting);
115
116 Stack activationStack = (Stack) activationStacks.get(Thread.currentThread());
117 if (activationStack==null) {
118 activationStack = new Stack();
119 activationStacks.put(Thread.currentThread(), activationStack);
120 }
121
122 if (activationStack.size() != 0) {
124 BundleStats activatedBy = (BundleStats) activationStack.peek();
125 activatedBy.activated(plugin);
126 plugin.setActivatedBy(activatedBy);
127 }
128 activationStack.push(plugin);
129
130 if (TRACE_BUNDLES == true) {
131 traceActivate(bundle.getSymbolicName(), plugin);
132 }
133 }
134
135 public void endActivation(Bundle pluginId) {
136 Stack activationStack = (Stack) activationStacks.get(Thread.currentThread());
137 BundleStats plugin = (BundleStats) activationStack.pop();
139 plugin.endActivation();
140 }
141
142 private void traceActivate(String id, BundleStats plugin) {
143 try {
144 PrintWriter output = new PrintWriter(new FileOutputStream(ClassloaderStats.traceFile.getAbsolutePath(), true));
145 try {
146 long startPosition = ClassloaderStats.traceFile.length();
147 output.println("Activating plugin: " + id); output.println("Plugin activation stack:"); Stack activationStack = (Stack) activationStacks.get(Thread.currentThread());
150 for (int i = activationStack.size() - 1; i >= 0; i--)
151 output.println("\t" + ((BundleStats) activationStack.get(i)).getPluginId()); output.println("Class loading stack:"); Stack classStack = ClassloaderStats.getClassStack();
154 for (int i = classStack.size() - 1; i >= 0; i--)
155 output.println("\t" + ((ClassStats) classStack.get(i)).getClassName()); output.println("Stack trace:"); new Throwable ().printStackTrace(output);
158 plugin.setTraceStart(startPosition);
159 } finally {
160 output.close();
161 plugin.setTraceEnd(ClassloaderStats.traceFile.length());
162 }
163 } catch (IOException e) {
164 e.printStackTrace();
165 }
166 }
167
168 public BundleStats findPlugin(String id) {
169 BundleStats result = (BundleStats) plugins.get(id);
170 try {
171 if (result == null) {
172 result = new BundleStats(id);
173 plugins.put(id, result);
174 }
175 } catch (IllegalAccessError e) {
176 e.printStackTrace();
177 }
178 return result;
179 }
180
181 public BundleStats[] getPlugins() {
182 return (BundleStats[]) plugins.values().toArray(new BundleStats[plugins.size()]);
183 }
184
185 public BundleStats getPlugin(String id) {
186 return (BundleStats) plugins.get(id);
187 }
188
189 } |
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