groovy.jmx.builder.JmxBuilderTools.groovy Maven / Gradle / Ivy
/*
* Copyright 2008 the original author or authors.
*
* Licensed 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 groovy.jmx.builder
import java.lang.management.ManagementFactory
import javax.management.DynamicMBean
import javax.management.MBeanServerConnection
import javax.management.MBeanServerFactory
import javax.management.ObjectName
/**
* This is a utility class used as a helper for JmxBuilder.
*
* @author Vladimir Vivien
*/
class JmxBuilderTools {
static String DEFAULT_DOMAIN = "jmx.builder"
static String DEFAULT_NAME_TYPE = "ExportedObject"
static String NODE_NAME_ATTRIBUTES = "attributes"
static String NODE_NAME_ATTRIBS = "attribs"
static String NODE_NAME_CONSTRUCTORS = "constructors"
static String NODE_NAME_CTORS = "ctors"
static String NODE_NAME_OPERATIONS = "operations"
static String NODE_NAME_OPS = "ops"
static String ATTRIB_KEY_DESCRIPTION = "description"
static String ATTRIB_KEY_DESC = "desc"
static String ATTRIB_KEY_TYPE = "type"
static String ATTRIB_KEY_DEFAULT = "defaultValue"
static String JMX_KEY = "jmx"
static String DESC_KEY = "descriptor"
static String DESC_KEY_MBEAN_RESOURCE = "resource"
static String DESC_KEY_MBEAN_RESOURCE_TYPE = "ObjectReference"
static String DESC_KEY_MBEAN_ATTRIBS = "attributes"
static String DESC_KEY_MBEAN_OPS = "operations"
static String DESC_KEY_MBEAN_CTORS = "constructors"
static String DESC_KEY_MBEAN_NOTES = "notifications"
static String DESC_KEY_NAME = "name"
static String DESC_KEY_JMX_NAME = "jmxName"
static String DESC_KEY_DISPLAY_NAME = "displayName"
static String DESC_KEY_TYPE = "descriptorType"
static String DESC_KEY_GETMETHOD = "getMethod"
static String DESC_KEY_SETMETHOD = "setMethod"
static String DESC_KEY_EVENT_TYPE = "eventType"
static String DESC_KEY_EVENT_NAME = "eventName"
static String DESC_KEY_EVENT_SOURCE = "eventSource"
static String DESC_KEY_EVENT_MESSAGE = "messageText"
static String DESC_VAL_TYPE_ATTRIB = "attribute"
static String DESC_VAL_TYPE_GETTER = "getter"
static String DESC_VAL_TYPE_SETTER = "setter"
static String DESC_VAL_TYPE_OP = "operation"
static String DESC_VAL_TYPE_NOTIFICATION = "notification"
static String DESC_VAL_TYPE_CTOR = "constructor"
static String DESC_VAL_TYPE_MBEAN = "mbean"
static String DESC_KEY_ROLE = "role"
static String DESC_KEY_READABLE = "readable"
static String DESC_KEY_WRITABLE = "writable"
static String DESC_KEY_SIGNATURE = "signature"
static String EVENT_KEY_CONTEXTS = "eventContexts"
static String EVENT_KEY_CALLBACK = "eventCallback"
static String EVENT_KEY_CALLBACK_RESULT = "eventCallbackResult"
static String EVENT_KEY_METHOD = "eventMethod"
static String EVENT_KEY_METHOD_RESULT = "eventMethodResult"
static String EVENT_KEY_ISATTRIB = "eventIsAttrib"
static String EVENT_KEY_NAME = "eventName"
static String EVENT_KEY_MESSAGE = "eventMessage"
static String EVENT_KEY_TYPE = "eventType"
static String EVENT_KEY_NODE_TYPE = "eventNodeType"
static String EVENT_VAL_NODETYPE_BROADCASTER = "broadcaster"
static String EVENT_VAL_NODETYPE_LISTENER = "listener"
static String EVENT_KEY_TARGETS = "eventListeners"
static Map PRIMITIVE_TYPES = [
"char": java.lang.Integer.TYPE,
"byte": java.lang.Byte.TYPE,
"short": java.lang.Short.TYPE,
"int": java.lang.Integer.TYPE,
"long": java.lang.Long.TYPE,
"float": java.lang.Float.TYPE,
"double": java.lang.Double.TYPE,
"boolean": java.lang.Boolean.TYPE
]
static Map TYPE_MAP = [
"object": java.lang.Object.class,
"Object": java.lang.Object.class,
"java.lang.Object": java.lang.Object.class,
"string": java.lang.String.class,
"String": java.lang.String.class,
"java.lang.String": java.lang.String.class,
"char": char.class,
"character": java.lang.Character.class,
"Character": java.lang.Character.class,
"java.lang.Character": java.lang.Character.class,
"byte": byte.class,
"Byte": java.lang.Byte.class,
"java.lang.Byte": java.lang.Byte.class,
"short": short.class,
"Short": java.lang.Short.class,
"java.lang.Short": java.lang.Short.class,
"int": int.class,
"integer": java.lang.Integer.class,
"Integer": java.lang.Integer.class,
"java.lang.Integer": java.lang.Integer.class,
"long": long.class,
"Long": java.lang.Long.class,
"java.lang.Long": java.lang.Long.class,
"float": float.class,
"Float": java.lang.Float.class,
"java.lang.Float": java.lang.Float.class,
"double": double.class,
"Double": java.lang.Double.class,
"java.lang.Double": java.lang.Double.class,
"boolean": boolean.class,
"Boolean": java.lang.Boolean.class,
"java.lang.Boolean": java.lang.Boolean.class,
"bigDec": java.math.BigDecimal.class,
"bigDecimal": java.math.BigDecimal.class,
"BigDecimal": java.math.BigDecimal.class,
"java.math.BigDecimal": java.math.BigDecimal.class,
"bigInt": java.math.BigInteger.class,
"bigInteger": java.math.BigInteger.class,
"BigInteger": java.math.BigInteger.class,
"java.math.BigInteger": java.math.BigInteger.class,
"date": java.util.Date.class,
"java.util.Date": java.util.Date.class
]
/**
* Capitalize the string passed.
* @param value - string to capitalize.
* @return - a capitalized string.
*/
public static String capitalize(String value) {
if (!value) return null
if (value.length() == 1) return value.toUpperCase()
return (value.length() > 1) ? value[0].toUpperCase() + value[1..-1] : value.toUpperCase()
}
/**
* Uncapitalizes a string.
* @param value - string to uncap.
* @return uncap'ed string.
*/
public static String uncapitalize(String value) {
if (!value) return null
if (value.length() == 1) return value.toLowerCase()
return (value.length() > 1) ? value[0].toLowerCase() + value[1..-1] : value.toLowerCase()
}
/**
* Builds a default ObjectName() instance for a given backing POJO/POGO
* @param obj - the backing pojo/pogo
* @return the generated ObjectName() instance.
*/
public static ObjectName getDefaultObjectName(def obj) {
String name = DEFAULT_DOMAIN + ":name=${obj.getClass().getName()},hashCode=${obj.hashCode()}"
try {
return new ObjectName(name)
} catch (Exception ex) {
throw new JmxBuilderException("Unable to create JMX ObjectName $name", ex)
}
}
/**
* Returns an MBeanServerConnection instance. It searches for declared MBeanServers
* from the MBeanServerFactory. If none is found, the default Platform MBeanServer is returned.
*/
public static MBeanServerConnection getMBeanServer() {
def servers = MBeanServerFactory.findMBeanServer(null);
def server = servers.size() > 0 ? servers[0] : ManagementFactory.getPlatformMBeanServer()
return server
}
/** *
* Returns method signature (as Class[]) given the meta map that describes the method.
* @param params - the map with parameter info.
* @return Class[] that represent the method signature.
*/
public static Class[] getSignatureFromParamInfo(def params) {
if (params == null || params.size() == 0) return null
Object[] result = new Object[params.size()]
params.eachWithIndex {param, i ->
def type = TYPE_MAP.get(param.getType()) ?: Class.forName(param.getType()) ?: null
result.putAt i, type
}
return result
}
/**
* Returns the proper type's class name when a short version is provided (i.e. String returns java.lang.String)
* @param type - the type name to normalize
* @return the normalized type name.
*/
public static String getNormalizedType(String type) {
if (typeIsPrimitive(type))
return PRIMITIVE_TYPES[type].name
return TYPE_MAP[type]?.name ?: Class.forName(type)?.name ?: null
}
/**
* Tests whether a type name is a primitive.
* @param typeName - the type name to test.
* @return true = if primitive
*/
private static boolean typeIsPrimitive(String typeName) {
PRIMITIVE_TYPES.containsKey(typeName)
}
/**
* Tests whether the provided class implements MBean. It uses the following runes
*
*
* if(
* DyanamicMBean.class.isAssignable(cls) ||
* cls.getName().endsWith("MBean") ||
* cls.getName().endsWith("MXBean")
* ) then class is MBean
*
*
* @param cls - class to test
* @return true = if class implements DyanmicMBean or interface name that ends in MBean or MXBean.
*/
public static boolean isClassMBean(Class cls) {
boolean result = false
if (cls == null) result = false
if (DynamicMBean.class.isAssignableFrom(cls)) {
result = true
}
for (face in cls.getInterfaces()) {
String name = face.getName()
if (name.endsWith("MBean") || name.endsWith("MXBean")) {
result = true
break
}
}
return result
}
public static GroovyMBean registerMBeanFromMap(String regPolicy, Map metaMap) {
// get modelmbean info from meta map
def info = JmxBeanInfoManager.getModelMBeanInfoFromMap(metaMap)
// Do mbean export: if target is already mbean, ignore, otherwise build modelmbean
def mbean
if (metaMap.isMBean) {
mbean = metaMap.target
} else {
mbean = new JmxBuilderModelMBean(info)
mbean.setManagedResource(metaMap.target)
mbean.addOperationCallListeners metaMap.attributes
mbean.addOperationCallListeners metaMap.operations
if (metaMap.listeners) {
mbean.addEventListeners metaMap.server, metaMap.listeners
}
}
def gbean
switch (regPolicy) {
case "replace":
if (metaMap.server.isRegistered(metaMap.jmxName)) {
metaMap.server.unregisterMBean metaMap.jmxName
}
metaMap.server.registerMBean(mbean, metaMap.jmxName)
gbean = new GroovyMBean(metaMap.server, metaMap.jmxName)
break
case "ignore":
if (metaMap.server.isRegistered(metaMap.jmxName))
break
case "error":
default:
if (metaMap.server.isRegistered(metaMap.jmxName)) {
throw new JmxBuilderException("A Bean with name ${metaMap.jmxName} is already registered on the server.")
} else {
metaMap.server.registerMBean(mbean, metaMap.jmxName)
gbean = new GroovyMBean(metaMap.server, metaMap.jmxName)
}
}
gbean
}
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