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7MetricsDynamicMBeanBase (Hadoop 0.20.1 API)
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91org.apache.hadoop.metrics.util</FONT>
92<BR>
93Class MetricsDynamicMBeanBase</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></DD>
100</DL>
101<DL>
102<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../org/apache/hadoop/ipc/metrics/RpcActivityMBean.html" title="class in org.apache.hadoop.ipc.metrics">RpcActivityMBean</A></DD>
103</DL>
104<HR>
105<DL>
106<DT><PRE>public abstract class <B>MetricsDynamicMBeanBase</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></DL>
107</PRE>
108
109<P>
110This abstract base class facilitates creating dynamic mbeans automatically from
111 metrics.
112 The metrics constructors registers metrics in a registry.
113 Different categories of metrics should be in differnt classes with their own
114 registry (as in NameNodeMetrics and DataNodeMetrics).
115 Then the MBean can be created passing the registry to the constructor.
116 The MBean should be then registered using a mbean name (example):
117  MetricsHolder myMetrics = new MetricsHolder(); // has metrics and registry
118  MetricsTestMBean theMBean = new MetricsTestMBean(myMetrics.mregistry);
119  ObjectName mbeanName = MBeanUtil.registerMBean("ServiceFoo",
120                "TestStatistics", theMBean);
121<P>
122
123<P>
124<HR>
125
126<P>
127
128<!-- ======== CONSTRUCTOR SUMMARY ======== -->
129
130<A NAME="constructor_summary"><!-- --></A>
131<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
132<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
133<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
134<B>Constructor Summary</B></FONT></TH>
135</TR>
136<TR BGCOLOR="white" CLASS="TableRowColor">
137<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
138<CODE>protected </CODE></FONT></TD>
139<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#MetricsDynamicMBeanBase(org.apache.hadoop.metrics.util.MetricsRegistry, java.lang.String)">MetricsDynamicMBeanBase</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A>&nbsp;mr,
140                        <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;aMBeanDescription)</CODE>
141
142<BR>
143&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
144</TR>
145</TABLE>
146&nbsp;
147<!-- ========== METHOD SUMMARY =========== -->
148
149<A NAME="method_summary"><!-- --></A>
150<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
151<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
152<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
153<B>Method Summary</B></FONT></TH>
154</TR>
155<TR BGCOLOR="white" CLASS="TableRowColor">
156<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
157<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
158<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#getAttribute(java.lang.String)">getAttribute</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;attributeName)</CODE>
159
160<BR>
161&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
162</TR>
163<TR BGCOLOR="white" CLASS="TableRowColor">
164<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
165<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A></CODE></FONT></TD>
166<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#getAttributes(java.lang.String[])">getAttributes</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;attributeNames)</CODE>
167
168<BR>
169&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
170</TR>
171<TR BGCOLOR="white" CLASS="TableRowColor">
172<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
173<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanInfo.html?is-external=true" title="class or interface in javax.management">MBeanInfo</A></CODE></FONT></TD>
174<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#getMBeanInfo()">getMBeanInfo</A></B>()</CODE>
175
176<BR>
177&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
178</TR>
179<TR BGCOLOR="white" CLASS="TableRowColor">
180<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
181<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
182<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#invoke(java.lang.String, java.lang.Object[], java.lang.String[])">invoke</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;actionName,
183       <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;parms,
184       <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;signature)</CODE>
185
186<BR>
187&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
188</TR>
189<TR BGCOLOR="white" CLASS="TableRowColor">
190<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
191<CODE>&nbsp;void</CODE></FONT></TD>
192<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#setAttribute(javax.management.Attribute)">setAttribute</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/Attribute.html?is-external=true" title="class or interface in javax.management">Attribute</A>&nbsp;attribute)</CODE>
193
194<BR>
195&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
196</TR>
197<TR BGCOLOR="white" CLASS="TableRowColor">
198<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
199<CODE>&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A></CODE></FONT></TD>
200<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsDynamicMBeanBase.html#setAttributes(javax.management.AttributeList)">setAttributes</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A>&nbsp;attributes)</CODE>
201
202<BR>
203&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
204</TR>
205</TABLE>
206&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
207<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
208<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
209<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
210</TR>
211<TR BGCOLOR="white" CLASS="TableRowColor">
212<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
213</TR>
214</TABLE>
215&nbsp;
216<P>
217
218<!-- ========= CONSTRUCTOR DETAIL ======== -->
219
220<A NAME="constructor_detail"><!-- --></A>
221<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
222<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
223<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
224<B>Constructor Detail</B></FONT></TH>
225</TR>
226</TABLE>
227
228<A NAME="MetricsDynamicMBeanBase(org.apache.hadoop.metrics.util.MetricsRegistry, java.lang.String)"><!-- --></A><H3>
229MetricsDynamicMBeanBase</H3>
230<PRE>
231protected <B>MetricsDynamicMBeanBase</B>(<A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A>&nbsp;mr,
232                                  <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;aMBeanDescription)</PRE>
233<DL>
234</DL>
235
236<!-- ============ METHOD DETAIL ========== -->
237
238<A NAME="method_detail"><!-- --></A>
239<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
240<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
241<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
242<B>Method Detail</B></FONT></TH>
243</TR>
244</TABLE>
245
246<A NAME="getAttribute(java.lang.String)"><!-- --></A><H3>
247getAttribute</H3>
248<PRE>
249public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> <B>getAttribute</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;attributeName)
250                    throws <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeNotFoundException.html?is-external=true" title="class or interface in javax.management">AttributeNotFoundException</A>,
251                           <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A>,
252                           <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></PRE>
253<DL>
254<DD><DL>
255<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#getAttribute(java.lang.String)" title="class or interface in javax.management">getAttribute</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
256</DD>
257<DD><DL>
258
259<DT><B>Throws:</B>
260<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeNotFoundException.html?is-external=true" title="class or interface in javax.management">AttributeNotFoundException</A></CODE>
261<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A></CODE>
262<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></CODE></DL>
263</DD>
264</DL>
265<HR>
266
267<A NAME="getAttributes(java.lang.String[])"><!-- --></A><H3>
268getAttributes</H3>
269<PRE>
270public <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A> <B>getAttributes</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;attributeNames)</PRE>
271<DL>
272<DD><DL>
273<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#getAttributes(java.lang.String[])" title="class or interface in javax.management">getAttributes</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
274</DD>
275<DD><DL>
276</DL>
277</DD>
278</DL>
279<HR>
280
281<A NAME="getMBeanInfo()"><!-- --></A><H3>
282getMBeanInfo</H3>
283<PRE>
284public <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanInfo.html?is-external=true" title="class or interface in javax.management">MBeanInfo</A> <B>getMBeanInfo</B>()</PRE>
285<DL>
286<DD><DL>
287<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#getMBeanInfo()" title="class or interface in javax.management">getMBeanInfo</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
288</DD>
289<DD><DL>
290</DL>
291</DD>
292</DL>
293<HR>
294
295<A NAME="invoke(java.lang.String, java.lang.Object[], java.lang.String[])"><!-- --></A><H3>
296invoke</H3>
297<PRE>
298public <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> <B>invoke</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;actionName,
299                     <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>[]&nbsp;parms,
300                     <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>[]&nbsp;signature)
301              throws <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A>,
302                     <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></PRE>
303<DL>
304<DD><DL>
305<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#invoke(java.lang.String, java.lang.Object[], java.lang.String[])" title="class or interface in javax.management">invoke</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
306</DD>
307<DD><DL>
308
309<DT><B>Throws:</B>
310<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A></CODE>
311<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></CODE></DL>
312</DD>
313</DL>
314<HR>
315
316<A NAME="setAttribute(javax.management.Attribute)"><!-- --></A><H3>
317setAttribute</H3>
318<PRE>
319public void <B>setAttribute</B>(<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/Attribute.html?is-external=true" title="class or interface in javax.management">Attribute</A>&nbsp;attribute)
320                  throws <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeNotFoundException.html?is-external=true" title="class or interface in javax.management">AttributeNotFoundException</A>,
321                         <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/InvalidAttributeValueException.html?is-external=true" title="class or interface in javax.management">InvalidAttributeValueException</A>,
322                         <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A>,
323                         <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></PRE>
324<DL>
325<DD><DL>
326<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#setAttribute(javax.management.Attribute)" title="class or interface in javax.management">setAttribute</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
327</DD>
328<DD><DL>
329
330<DT><B>Throws:</B>
331<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeNotFoundException.html?is-external=true" title="class or interface in javax.management">AttributeNotFoundException</A></CODE>
332<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/InvalidAttributeValueException.html?is-external=true" title="class or interface in javax.management">InvalidAttributeValueException</A></CODE>
333<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/MBeanException.html?is-external=true" title="class or interface in javax.management">MBeanException</A></CODE>
334<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/ReflectionException.html?is-external=true" title="class or interface in javax.management">ReflectionException</A></CODE></DL>
335</DD>
336</DL>
337<HR>
338
339<A NAME="setAttributes(javax.management.AttributeList)"><!-- --></A><H3>
340setAttributes</H3>
341<PRE>
342public <A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A> <B>setAttributes</B>(<A HREF="http://java.sun.com/javase/6/docs/api/javax/management/AttributeList.html?is-external=true" title="class or interface in javax.management">AttributeList</A>&nbsp;attributes)</PRE>
343<DL>
344<DD><DL>
345<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true#setAttributes(javax.management.AttributeList)" title="class or interface in javax.management">setAttributes</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/javax/management/DynamicMBean.html?is-external=true" title="class or interface in javax.management">DynamicMBean</A></CODE></DL>
346</DD>
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