svn commit: r1541429 - in /incubator/sirona/trunk: agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/ core/src/main/java/org/apache/sirona/gauges/jmx/

[rm...@apache.org]

Author: rmannibucau
Date: Wed Nov 13 08:55:56 2013
New Revision: 1541429

URL: http://svn.apache.org/r1541429
Log:
adding JMXAttributeGaugeBase to ease the addition of custom JMX based gauges

Added:
    incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/
    incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/JMXAttributeGaugeBase.java
Modified:
    incubator/sirona/trunk/agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/PullRepository.java

Modified: incubator/sirona/trunk/agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/PullRepository.java
URL: http://svn.apache.org/viewvc/incubator/sirona/trunk/agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/PullRepository.java?rev=1541429&r1=1541428&r2=1541429&view=diff
==============================================================================
--- incubator/sirona/trunk/agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/PullRepository.java (original)
+++ incubator/sirona/trunk/agent/pull/src/main/java/org/apache/sirona/agent/webapp/pull/repository/PullRepository.java Wed Nov 13 08:55:56 2013
@@ -66,7 +66,11 @@ public class PullRepository extends Defa
 
         // gauges
         for (final Gauge g : getGauges()) {
-            answer.append(cube.gaugeSnapshot(time, g.role(), g.value()));
+            try {
+                answer.append(cube.gaugeSnapshot(time, g.role(), g.value()));
+            } catch (final Exception e) {
+                // no-op: ignore
+            }
         }
 
         // status

Added: incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/JMXAttributeGaugeBase.java
URL: http://svn.apache.org/viewvc/incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/JMXAttributeGaugeBase.java?rev=1541429&view=auto
==============================================================================
--- incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/JMXAttributeGaugeBase.java (added)
+++ incubator/sirona/trunk/core/src/main/java/org/apache/sirona/gauges/jmx/JMXAttributeGaugeBase.java Wed Nov 13 08:55:56 2013
@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.sirona.gauges.jmx;
+
+import org.apache.sirona.Role;
+import org.apache.sirona.SironaException;
+import org.apache.sirona.configuration.Configuration;
+import org.apache.sirona.counters.Unit;
+import org.apache.sirona.gauges.Gauge;
+
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+import java.lang.management.ManagementFactory;
+
+public abstract class JMXAttributeGaugeBase implements Gauge {
+    private static final MBeanServer SERVER = ManagementFactory.getPlatformMBeanServer();
+
+    private final ObjectName name;
+    private final String attribute;
+    private final Role role;
+
+    public JMXAttributeGaugeBase(final ObjectName name, final String attribute, final String role, final Unit unit) {
+        this.name = name;
+        this.attribute = attribute;
+        this.role = new Role(role, unit);
+    }
+
+    public JMXAttributeGaugeBase(final ObjectName name, final String attribute) {
+        this(name, attribute, name.getCanonicalName() + "#" + attribute, Unit.UNARY);
+    }
+
+    @Override
+    public Role role() {
+        return role;
+    }
+
+    @Override
+    public double value() {
+        try {
+            return Number.class.cast(SERVER.getAttribute(name, attribute)).doubleValue();
+        } catch (final Exception e) {
+            throw new SironaException(e);
+        }
+    }
+
+    @Override
+    public long period() {
+        return Configuration.getInteger(Configuration.CONFIG_PROPERTY_PREFIX + "gauge.jmx.period", 4000);
+    }
+}