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23
24
29
30 package com.sun.enterprise.admin.mbeans.jvm;
31
32 import com.sun.enterprise.util.i18n.StringManager;
33 import java.lang.management.GarbageCollectorMXBean  ;
34 import java.lang.management.ManagementFactory ;
35 import java.lang.management.MemoryMXBean ;
36 import java.lang.management.MemoryPoolMXBean ;
37 import java.lang.management.MemoryUsage ;
38 import java.lang.management.RuntimeMXBean ;
39 import java.util.ArrayList ;
40 import java.util.Iterator ;
41 import java.util.List ;
42 import java.util.Set ;
43 import javax.management.MBeanServerConnection ;
44 import javax.management.ObjectName ;
45
46
48 class MemoryReporter {
49 private final MBeanServerConnection mbsc;
50 private RuntimeMXBean rmbean;
51 private MemoryMXBean mmbean;
52 private List <MemoryPoolMXBean > pools;
53 private List <GarbageCollectorMXBean > gcmbeans;
54 private final static StringManager sm = StringManager.getManager(MemoryReporter.class);
55
56 public MemoryReporter(final MBeanServerConnection mbsc) {
57 this.mbsc = mbsc;
58 }
59 public String getMemoryReport() {
60 init();
61 final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder ());
62 sb.append(getMemoryPoolReport());
63 sb.append(getGarbageCollectionReport());
64 sb.append(getMemoryMXBeanReport());
65 return ( sb.toString() );
66 }
67
68 private void init() throws RuntimeException {
69 try {
70 this.rmbean = ManagementFactory.newPlatformMXBeanProxy(mbsc,
71 ManagementFactory.RUNTIME_MXBEAN_NAME,
72 RuntimeMXBean .class);
73 this.mmbean = ManagementFactory.newPlatformMXBeanProxy(mbsc,
74 ManagementFactory.MEMORY_MXBEAN_NAME,
75 MemoryMXBean .class);
76 ObjectName poolName = new ObjectName (ManagementFactory.MEMORY_POOL_MXBEAN_DOMAIN_TYPE+",*");;
77 ObjectName gcName = new ObjectName (ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE+",*");
78 Set mbeans = mbsc.queryNames(poolName, null);
79 if (mbeans != null) {
80 pools = new ArrayList <MemoryPoolMXBean >();
81 Iterator iterator = mbeans.iterator();
82 MemoryPoolMXBean p = null;
83 while (iterator.hasNext()) {
84 ObjectName objName = (ObjectName ) iterator.next();
85 p = ManagementFactory.newPlatformMXBeanProxy(mbsc,
86 objName.getCanonicalName(),
87 MemoryPoolMXBean .class);
88 pools.add(p);
89 }
90 }
91 mbeans = mbsc.queryNames(gcName, null);
92 if (mbeans != null) {
93 gcmbeans = new ArrayList <GarbageCollectorMXBean >();
94 Iterator iterator = mbeans.iterator();
95 GarbageCollectorMXBean gc = null;
96 while (iterator.hasNext()) {
97 ObjectName objName = (ObjectName ) iterator.next();
98 gc = ManagementFactory.newPlatformMXBeanProxy(mbsc,
99 objName.getCanonicalName(),
100 GarbageCollectorMXBean .class);
101 gcmbeans.add(gc);
102 }
103 }
104 } catch (final Exception e) {
105 throw new RuntimeException (e);
106 }
107 }
108
109 private String getMemoryPoolReport() {
110 final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder ());
111 final long millis = rmbean.getUptime();
112 final String uptime = sm.getString("uptime", JVMInformationCollector.millis2HoursMinutesSeconds(millis));
113 sb.append(uptime);
114 for (final MemoryPoolMXBean m : pools) {
115 final String n = m.getName();
116 sb.append(sm.getString("memory.pool.name", n));
117 MemoryUsage mu = m.getUsage();
118 sb.append(mu2String(mu));
119 }
120 return ( sb.toString() );
121 }
122 private String mu2String(final MemoryUsage mu) {
123 final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder ());
124 final String init = JVMInformationCollector.formatLong(mu.getInit());
125 sb.append(sm.getString("memory.usage.init", init));
126 final String comm = JVMInformationCollector.formatLong(mu.getCommitted());
127 sb.append(sm.getString("memory.usage.comm", comm));
128 final String max = JVMInformationCollector.formatLong(mu.getMax());
129 sb.append(sm.getString("memory.usage.max", max));
130 final String used = JVMInformationCollector.formatLong(mu.getUsed());
131 sb.append(sm.getString("memory.usage.used", used));
132 return ( sb.toString() );
133 }
134 private String getGarbageCollectionReport() {
135 final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder ());
136 for (final GarbageCollectorMXBean m : gcmbeans) {
137 final String name = sm.getString("gc.name", m.getName());
138 sb.append(name);
139 final String cc = sm.getString("gc.numcol", JVMInformationCollector.formatLong(m.getCollectionCount()));
140 sb.append(cc);
141 final String gct = sm.getString("gc.coltime", JVMInformationCollector.millis2SecondsMillis(m.getCollectionTime()));
142 sb.append(gct);
143 }
144 return ( sb.toString() );
145 }
146 private String getMemoryMXBeanReport() {
147 final StringBuilderNewLineAppender sb = new StringBuilderNewLineAppender(new StringBuilder ());
148 sb.append(sm.getString("heap.mem.usage"));
149 sb.append(mu2String(mmbean.getHeapMemoryUsage()));
150 sb.append(sm.getString("nonheap.mem.usage"));
151 sb.append(mu2String(mmbean.getNonHeapMemoryUsage()));
152 sb.append(sm.getString("obj.fin.pending", mmbean.getObjectPendingFinalizationCount()));
153 return ( sb.toString() );
154 }
155 } |
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