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31 package com.sun.enterprise.admin.mbeans.jvm;
32
33 import com.sun.enterprise.admin.server.core.AdminService;
34 import com.sun.enterprise.admin.target.Target;
35 import com.sun.enterprise.admin.target.TargetBuilder;
36 import com.sun.enterprise.admin.target.TargetType;
37 import com.sun.enterprise.config.ConfigContext;
38 import com.sun.enterprise.util.SystemPropertyConstants;
39 import com.sun.enterprise.util.i18n.StringManager;
40 import java.text.NumberFormat  ;
41 import java.util.Hashtable ;
42 import javax.management.MBeanRegistration ;
43 import javax.management.MBeanServer ;
44 import javax.management.MBeanServerConnection ;
45 import javax.management.NotCompliantMBeanException ;
46 import javax.management.ObjectName ;
47 import javax.management.StandardMBean ;
48
49
51 public class JVMInformationCollector extends StandardMBean implements JVMInformationMBean, MBeanRegistration {
52
53 private MBeanServerConnection mbsc;
54 private static final StringManager sm = StringManager.getManager(JVMInformationCollector.class);
55 public JVMInformationCollector() throws NotCompliantMBeanException {
56 super(JVMInformationMBean.class);
57 }
58 public String getThreadDump(final String processName) {
59 final ObjectName on = processTarget(processName);
60 final String td = invokeMBean(on, "getThreadDump");
61 return ( td );
62 }
63
64 public String getSummary(final String processName) {
65 final ObjectName on = processTarget(processName);
66 final String s = invokeMBean(on, "getSummary");
67 return ( s );
68 }
69
70 public String getMemoryInformation(final String processName) {
71 final ObjectName on = processTarget(processName);
72 final String mi = invokeMBean(on, "getMemoryInformation");
73 return ( mi );
74 }
75
76 public String getClassInformation(final String processName) {
77 final ObjectName on = processTarget(processName);
78 final String ci = invokeMBean(on, "getClassInformation");
79 return ( ci );
80 }
81
82 private ObjectName processTarget(final String processName) throws RuntimeException {
83 try {
84 final TargetType[] vts = {TargetType.DAS, TargetType.SERVER};
85 final ConfigContext acc = AdminService.getAdminService().getAdminContext().getAdminConfigContext();
86 final Target t = TargetBuilder.INSTANCE.createTarget(null, vts, processName, acc); final String sn = t.getName();
89 final String cn = JVMInformation.class.getSimpleName();
90 final ObjectName on = formObjectName(sn, cn);
91 if (! this.mbsc.isRegistered(on)) {
92 final String msg = sm.getString("server.unreachable", sn);
93 throw new RuntimeException (msg);
94 }
95 return (on);
96 } catch (final RuntimeException re) {
97 throw(re);
98 } catch (final Exception e) {
99 throw new RuntimeException (e);
100 }
101 }
102
103 private String invokeMBean(final ObjectName jvm, final String method) throws RuntimeException {
104 try {
105 final Object [] params = {null};
108 final String [] sign = {"java.lang.String"};
109 final Object ret = this.mbsc.invoke(jvm, method, params, sign);
110
111 return ( (String ) ret );
112
113 } catch (final Exception e) {
114 throw new RuntimeException (e);
115 }
116 }
117 public void postRegister(Boolean registrationDone) {
118 }
119
120 public ObjectName preRegister(final MBeanServer server, final ObjectName name) throws Exception {
121 this.mbsc = server;
122 final String sn = System.getProperty(SystemPropertyConstants.SERVER_NAME);
123 final ObjectName on = formObjectName(sn, JVMInformationCollector.class.getSimpleName());
124 return ( on );
125 }
126
127 public void preDeregister() throws Exception {
128 }
129
130 public void postDeregister() {
131 }
132
133 static ObjectName formObjectName(final String sn, final String cName) throws Exception {
134
135 final String domain = AdminService.PRIVATE_MBEAN_DOMAIN_NAME;
136 final Hashtable <String , String > props = new Hashtable <String , String > ();
137 props.put("type", cName);
138 props.put("category", "monitor");
139 final String snk = "server";
140 props.put(snk, sn);
141 return ( new ObjectName (domain, props) );
142 }
143
144 static String millis2HoursMinutesSeconds(final long millis) {
145 final long secmin = millis / (long) 1000;
146 final long sec = secmin % 60;
147 final long minhr = secmin / 60;
148 final long min = minhr % 60;
149 final long hr = minhr / 60;
150 final String msg = sm.getString("m2hms", hr, min, sec);
151
152 return ( msg );
153 }
154 static String millis2SecondsMillis(final long millis) {
155 final long sec = millis / (long) 1000;
156 final long ms = millis % 1000;
157 final String msg = sm.getString("m2sms", sec, ms);
158 return ( msg );
159 }
160 static String formatLong(final long sayBytes) {
161 final NumberFormat n = NumberFormat.getInstance();
162 return ( n.format(sayBytes) );
163 }
164 }
165 |
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