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List: openejb-cvs
Subject: svn commit: r939204 - in
From: dblevins () apache ! org
Date: 2010-04-29 6:07:41
Message-ID: 20100429060741.630A223888EA () eris ! apache ! org
[Download RAW message or body]
Author: dblevins
Date: Thu Apr 29 06:07:40 2010
New Revision: 939204
URL: http://svn.apache.org/viewvc?rev=939204&view=rev
Log:
Ability to easily export annotated stats beans as JMX objects. Based on Martin \
Traverso's jmxutils. Still a work in progress.
Added:
openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/
openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java \
(with props) openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java \
(with props) openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java \
(with props) openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java \
(with props)
Added: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java
URL: http://svn.apache.org/viewvc/openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java?rev=939204&view=auto
==============================================================================
--- openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java \
(added)
+++ openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java \
Thu Apr 29 06:07:40 2010 @@ -0,0 +1,101 @@
+/**
+ * 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.openejb.monitoring;
+
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
+import javax.management.MBeanOperationInfo;
+import javax.management.MBeanException;
+import javax.management.modelmbean.ModelMBeanInfo;
+import javax.management.modelmbean.RequiredModelMBean;
+import javax.management.modelmbean.ModelMBeanInfoSupport;
+import javax.management.modelmbean.ModelMBeanAttributeInfo;
+import javax.management.modelmbean.ModelMBeanConstructorInfo;
+import javax.management.modelmbean.ModelMBeanOperationInfo;
+import javax.management.modelmbean.ModelMBeanNotificationInfo;
+import java.util.List;
+import java.util.ArrayList;
+
+public class MBeanExporter {
+ private final MBeanServer server;
+
+ public MBeanExporter(MBeanServer server) {
+ this.server = server;
+ }
+
+ public void export(String name, Object object) {
+ try {
+ ObjectName objectName = new ObjectName(name);
+
+ MBeanInfoBuilder builder = new MBeanInfoBuilder();
+ ModelMBeanInfo info = builder.buildInfo(object.getClass());
+
+ // Use the GetterStrippingMBeanInfo to work around \
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6339571. + \
RequiredModelMBean mbean = new RequiredModelMBean(new \
GetterStrippingMBeanInfo(info)); + mbean.setManagedResource(object, \
"objectReference"); +
+ server.registerMBean(mbean, objectName);
+ }
+ catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ static class GetterStrippingMBeanInfo extends ModelMBeanInfoSupport {
+
+ public GetterStrippingMBeanInfo(ModelMBeanInfo info) {
+ super(info);
+ }
+
+ @Override
+ public GetterStrippingMBeanInfo clone() {
+ return new GetterStrippingMBeanInfo(this);
+ }
+
+ /**
+ * Get rid of getter and setter operations as the mbeaninfo is serialized
+ * Clients will see just the attributes
+ *
+ * @return
+ */
+ private Object writeReplace() {
+ List<MBeanOperationInfo> operations = new \
ArrayList<MBeanOperationInfo>(); +
+ for (MBeanOperationInfo operation : getOperations()) {
+ // Descriptor descriptor = operation.getDescriptor();
+ // String role = (String) descriptor.getFieldValue("role");
+ // if (!"getter".equalsIgnoreCase(role) && \
!"setter".equalsIgnoreCase(role)) { + operations.add(operation);
+ // }
+ }
+
+ try {
+ return new ModelMBeanInfoSupport(
+ this.getClassName(),
+ this.getDescription(),
+ (ModelMBeanAttributeInfo[]) this.getAttributes(),
+ (ModelMBeanConstructorInfo[]) this.getConstructors(),
+ operations.toArray(new ModelMBeanOperationInfo[0]),
+ (ModelMBeanNotificationInfo[]) this.getNotifications(),
+ this.getMBeanDescriptor());
+ }
+ catch (MBeanException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ }
+}
\ No newline at end of file
Propchange: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanExporter.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java
URL: http://svn.apache.org/viewvc/openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java?rev=939204&view=auto
==============================================================================
--- openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java \
(added)
+++ openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java \
Thu Apr 29 06:07:40 2010 @@ -0,0 +1,158 @@
+/**
+ * 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.openejb.monitoring;
+
+import org.apache.openejb.jee.oejb2.ClassFilterType;
+import org.apache.xbean.finder.ClassFinder;
+
+import javax.management.Descriptor;
+import javax.management.IntrospectionException;
+import javax.management.MBeanOperationInfo;
+import javax.management.MBeanParameterInfo;
+import javax.management.modelmbean.DescriptorSupport;
+import javax.management.modelmbean.ModelMBeanAttributeInfo;
+import javax.management.modelmbean.ModelMBeanConstructorInfo;
+import javax.management.modelmbean.ModelMBeanInfo;
+import javax.management.modelmbean.ModelMBeanInfoSupport;
+import javax.management.modelmbean.ModelMBeanNotificationInfo;
+import javax.management.modelmbean.ModelMBeanOperationInfo;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+class MBeanInfoBuilder {
+ private final static Pattern getterOrSetterPattern = \
Pattern.compile("(get|set|is)(.+)"); +
+ private static final String SUFFIX = MBeanInfoBuilder.class.getName();
+ private final static String DESCRIPTION = SUFFIX + ".description";
+ private final static String METHOD_INSTANCE = SUFFIX + ".methodInstance";
+ private final static String GET_METHOD_INSTANCE = SUFFIX + ".getMethodInstance";
+ private final static String SET_METHOD_INSTANCE = SUFFIX + ".setMethodInstance";
+
+ public ModelMBeanInfo buildInfo(Class clazz) throws IntrospectionException {
+
+ Map<String, DescriptorSupport> attributes = new HashMap<String, \
DescriptorSupport>(); + List<DescriptorSupport> operations = new \
ArrayList<DescriptorSupport>(); +
+ ClassFinder finder = new ClassFinder(clazz);
+
+ List<Method> methods = finder.findAnnotatedMethods(Managed.class);
+
+ for (Method method : methods) {
+ Managed annotation = method.getAnnotation(Managed.class);
+
+ DescriptorSupport operationDescriptor = new DescriptorSupport();
+ operationDescriptor.setField("name", method.getName());
+ operationDescriptor.setField("class", clazz.getName());
+ operationDescriptor.setField("descriptorType", "operation");
+ operationDescriptor.setField(DESCRIPTION, annotation.description());
+ operationDescriptor.setField(METHOD_INSTANCE, method);
+
+ operations.add(operationDescriptor);
+
+ Matcher matcher = getterOrSetterPattern.matcher(method.getName());
+ if (matcher.matches()) {
+ String type = matcher.group(1);
+ String attributeName = matcher.group(2);
+
+ DescriptorSupport descriptor = attributes.get(attributeName);
+ if (descriptor == null) {
+ descriptor = new DescriptorSupport();
+ descriptor.setField("name", attributeName);
+ descriptor.setField("descriptorType", "attribute");
+ descriptor.setField(DESCRIPTION, annotation.description());
+
+ attributes.put(attributeName, descriptor);
+ }
+
+ if (type.equals("get") || type.equals("is")) {
+ descriptor.setField(GET_METHOD_INSTANCE, method);
+ descriptor.setField("getMethod", method.getName());
+ operationDescriptor.setField("role", "getter");
+ } else if (type.equals("set")) {
+ descriptor.setField(SET_METHOD_INSTANCE, method);
+ descriptor.setField("setMethod", method.getName());
+ operationDescriptor.setField("role", "setter");
+ }
+ } else {
+ operationDescriptor.setField("role", "operation");
+ }
+ }
+
+ List<ModelMBeanAttributeInfo> attributeInfos = new \
ArrayList<ModelMBeanAttributeInfo>(); +
+ for (DescriptorSupport attribute : attributes.values()) {
+ Method getter = (Method) attribute.getFieldValue(GET_METHOD_INSTANCE);
+ Method setter = (Method) attribute.getFieldValue(SET_METHOD_INSTANCE);
+ String description = (String) attribute.getFieldValue(DESCRIPTION);
+
+ // we're piggybacking on Descriptor to hold values that we need here. \
Remove them before passing + // them on, as they will cause problems if \
they are not serializable (e.g., Method) + strip(attribute);
+
+ attributeInfos.add(new \
ModelMBeanAttributeInfo(attribute.getFieldValue("name").toString(), + \
description, + getter,
+ setter,
+ attribute));
+ }
+
+ List<ModelMBeanOperationInfo> operationInfos = new \
ArrayList<ModelMBeanOperationInfo>(); +
+ for (DescriptorSupport operation : operations) {
+ String description = (String) operation.getFieldValue(DESCRIPTION);
+ Method method = (Method) operation.getFieldValue(METHOD_INSTANCE);
+
+ // we're piggybacking on Descriptor to hold values that we need here. \
Remove them before passing + // them on, as they will cause problems if \
they are not serializable (e.g., Method) + strip(operation);
+
+ Class<?>[] types = method.getParameterTypes();
+ String[] names = new String[types.length];
+ for (int i = 0; i < names.length; i++) {
+ names[i] = "arg" + i;
+ }
+
+ MBeanParameterInfo[] params = new MBeanParameterInfo[names.length];
+
+ for (int i = 0; i < names.length; ++i) {
+ params[i] = new MBeanParameterInfo(names[i], types[i].getName(), \
null); + }
+
+ operationInfos.add(new ModelMBeanOperationInfo(method.getName(), \
description, params, + method.getReturnType().toString(), \
MBeanOperationInfo.UNKNOWN, operation)); + }
+
+ return new ModelMBeanInfoSupport(clazz.getName(), null,
+ attributeInfos.toArray(new ModelMBeanAttributeInfo[0]),
+ new ModelMBeanConstructorInfo[0],
+ operationInfos.toArray(new ModelMBeanOperationInfo[0]),
+ new ModelMBeanNotificationInfo[0]);
+ }
+
+ private void strip(Descriptor descriptor) {
+ for (String name : descriptor.getFieldNames()) {
+ if (name.startsWith(SUFFIX)) {
+ descriptor.removeField(name);
+ }
+ }
+ }
+}
\ No newline at end of file
Propchange: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/MBeanInfoBuilder.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java
URL: http://svn.apache.org/viewvc/openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java?rev=939204&view=auto
==============================================================================
--- openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java \
(added)
+++ openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java \
Thu Apr 29 06:07:40 2010 @@ -0,0 +1,28 @@
+/**
+ * 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.openejb.monitoring;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.METHOD})
+public @interface Managed {
+ String description() default "";
+}
\ No newline at end of file
Propchange: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/Managed.java
------------------------------------------------------------------------------
svn:eol-style = native
Added: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java
URL: http://svn.apache.org/viewvc/openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java?rev=939204&view=auto
==============================================================================
--- openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java \
(added)
+++ openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java \
Thu Apr 29 06:07:40 2010 @@ -0,0 +1,66 @@
+/**
+ * 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.openejb.monitoring;
+
+import static java.lang.String.format;
+import java.lang.annotation.Annotation;
+
+/**
+ * Generate JMX object names.
+ */
+public class ObjectNames {
+
+ /**
+ * Produce a standardized JMX object name.
+ *
+ * @param clazz
+ * @return JMX object name of the form "[package_name]:name=[class_name]"
+ */
+ public static String generatedNameOf(Class<?> clazz) {
+ return format("%s:name=%s",
+ clazz.getPackage().getName(),
+ clazz.getSimpleName());
+ }
+
+ /**
+ * Produce a generated JMX object name.
+ *
+ * @param clazz
+ * @param annotation
+ * @return JMX object name of the form \
"[package_name]:type=[class_name],name=[ann_class_name]" + */
+ public static String generatedNameOf(Class<?> clazz, Annotation annotation) {
+ return format("%s:type=%s,name=%s",
+ clazz.getPackage().getName(),
+ clazz.getSimpleName(),
+ annotation.annotationType().getSimpleName());
+ }
+
+ /**
+ * Produce a generated JMX object name.
+ *
+ * @param clazz
+ * @param annotationClass
+ * @return JMX object name of the form \
"[package_name]:type=[class_name],name=[ann_class_name]" + */
+ public static String generatedNameOf(Class<?> clazz, Class<? extends Annotation> \
annotationClass) { + return format("%s:type=%s,name=%s",
+ clazz.getPackage().getName(),
+ clazz.getSimpleName(),
+ annotationClass.getSimpleName());
+ }
+}
\ No newline at end of file
Propchange: openejb/trunk/openejb3/container/openejb-core/src/main/java/org/apache/openejb/monitoring/ObjectNames.java
------------------------------------------------------------------------------
svn:eol-style = native
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