package mbeanTest; import java.lang.reflect.Constructor; import javax.management.Descriptor; import javax.management.InstanceNotFoundException; import javax.management.MBeanException; import javax.management.MBeanOperationInfo; import javax.management.MBeanParameterInfo; import javax.management.RuntimeOperationsException; import javax.management.modelmbean.DescriptorSupport; import javax.management.modelmbean.InvalidTargetObjectTypeException; import javax.management.modelmbean.ModelMBeanAttributeInfo; import javax.management.modelmbean.ModelMBeanConstructorInfo; import javax.management.modelmbean.ModelMBeanInfo; import javax.management.modelmbean.ModelMBeanInfoSupport; import javax.management.modelmbean.ModelMBeanOperationInfo; import javax.management.modelmbean.RequiredModelMBean; public class HelloWorldModelMBean extends RequiredModelMBean { public HelloWorldModelMBean() throws Exception {} public static RequiredModelMBean createModelBean() throws RuntimeOperationsException, MBeanException, InstanceNotFoundException, InvalidTargetObjectTypeException { // 模型MBean信息 ModelMBeanInfo info = buildModelMBeanInfo(); // 模型MBean RequiredModelMBean modelMBean = new RequiredModelMBean(info); // 目前只支持ObjectReference,将来可能会支持ObjectReference", "Handle", "IOR", "EJBHandle", // or "RMIReference, // RMIReference从名字上可以看出,如果支持的话,那么以后就可以支持远程MBean引用 modelMBean.setManagedResource(new HelloWorld(), "ObjectReference"); return modelMBean; } protected static ModelMBeanInfo buildModelMBeanInfo() throws RuntimeOperationsException, MBeanException { // -- // attributes // ------------------------------------------------------------------ ModelMBeanAttributeInfo[] attributes = new ModelMBeanAttributeInfo[1]; // 设置属性 Descriptor nameDesc = new DescriptorSupport(); nameDesc.setField("name", "hello"); nameDesc.setField("value", "这是value的值"); nameDesc.setField("hee", "这是hee的值"); nameDesc.setField("displayName", "myname"); nameDesc.setField("setMethod", "setHello"); nameDesc.setField("getMethod", "getHello"); nameDesc.setField("descriptorType", "attribute"); attributes[0] = new ModelMBeanAttributeInfo("hello", "java.lang.String", "name say hello to", true, true, false, nameDesc); String[] sa = nameDesc.getFields(); // -- // operations // ------------------------------------------------------------------- ModelMBeanOperationInfo[] operations = new ModelMBeanOperationInfo[2]; String className = HelloWorld.class.getName(); // getName method Descriptor getDesc = new DescriptorSupport(new String[] { "name=getHello", "descriptorType=operation", "class=" + className, "role=operation" }); operations[0] = new ModelMBeanOperationInfo("getHello", "get hello ", null, null, MBeanOperationInfo.ACTION, getDesc); Descriptor setDesc = new DescriptorSupport(new String[] { "name=setHello", "descriptorType=operation", "class=" + className, "role=operation" }); operations[1] = new ModelMBeanOperationInfo("setHello", "set hello ", new MBeanParameterInfo[] { new MBeanParameterInfo("a", "java.lang.String", " a method‘s arg ") }, null, MBeanOperationInfo.ACTION, setDesc); // constructors ModelMBeanConstructorInfo[] constructors = new ModelMBeanConstructorInfo[1]; Constructor<?>[] ctors = HelloWorld.class.getConstructors(); constructors[0] = new ModelMBeanConstructorInfo("default constructor", ctors[0], null); // ModelMBeanInfo ModelMBeanInfo mmbeanInfo = new ModelMBeanInfoSupport(className, "Simple implementation of model bean.", attributes, null, operations/* null */, null, null); // 设置一个Descriptor策略,这样RequiredModelMBean改变 Attribute值得时候会记录日志 // 当然RequiredModelMBean还需要addAttributeChangeNotificationListener,注册一个监听器 Descriptor globalDescriptor = new DescriptorSupport(new String[] { "name=HelloWorldModelMBean", "displayName=globaldescriptor", "descriptorType=mbean", "log=T", "logfile=hello.log" }); mmbeanInfo.setMBeanDescriptor(globalDescriptor); return mmbeanInfo; } }
时间: 2024-10-13 11:46:05