| 1 | // jademx - JADE management using JMX |
| 2 | // Copyright 2005 Caboodle Networks, Inc. |
| 3 | // |
| 4 | // This library is free software; you can redistribute it and/or |
| 5 | // modify it under the terms of the GNU Lesser General Public |
| 6 | // License as published by the Free Software Foundation; either |
| 7 | // version 2.1 of the License, or (at your option) any later version. |
| 8 | // |
| 9 | // This library is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | // Lesser General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU Lesser General Public |
| 15 | // License along with this library; if not, write to the Free Software |
| 16 | // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
| 17 | |
| 18 | package jade.jademx.server; |
| 19 | |
| 20 | import java.lang.reflect.Method; |
| 21 | import javax.management.MBeanServer; |
| 22 | |
| 23 | |
| 24 | /** |
| 25 | * JadeMXServer implemented by calling a static method. |
| 26 | * @author David Bernstein, <a href="http://www.caboodlenetworks.com" |
| 27 | * >Caboodle Networks, Inc.</a> |
| 28 | */ |
| 29 | public class StaticMethod implements JadeMXServer { |
| 30 | |
| 31 | /** the platform MBean server */ |
| 32 | private MBeanServer mBeanServer; |
| 33 | |
| 34 | /** class whose method to call to get MBeanServer */ |
| 35 | private String className; |
| 36 | |
| 37 | /** name of method to call to get MBeanServer */ |
| 38 | private String methodName; |
| 39 | |
| 40 | /** signature for method to call to get MBeanServer */ |
| 41 | private Class signature[]; |
| 42 | |
| 43 | /** arguments in call to get MBeanServer */ |
| 44 | private Object arguments[]; |
| 45 | |
| 46 | |
| 47 | |
| 48 | /** |
| 49 | * the JadeMXServer for getting MBeanServer via a static method call |
| 50 | * @param className name of class with method to call |
| 51 | * @param methodName name of method to call |
| 52 | * @param signature method signature |
| 53 | * @param arguments arguments to call method with |
| 54 | */ |
| 55 | protected StaticMethod( |
| 56 | String className, |
| 57 | String methodName, |
| 58 | Class signature[], |
| 59 | Object arguments[] ) { |
| 60 | |
| 61 | this.className = className; |
| 62 | this.methodName = methodName; |
| 63 | this.signature = signature; |
| 64 | this.arguments = arguments; |
| 65 | |
| 66 | try { |
| 67 | Class methodClass = Class.forName( className ); |
| 68 | Method method = methodClass.getMethod( methodName, signature ); |
| 69 | mBeanServer = (MBeanServer)method.invoke( null, arguments ); |
| 70 | } |
| 71 | catch ( Exception e ) { |
| 72 | throw new RuntimeException( |
| 73 | "exception calling static method to get MBeanServer: "+ |
| 74 | toString(), e ); |
| 75 | } |
| 76 | |
| 77 | |
| 78 | } |
| 79 | |
| 80 | /* (non-Javadoc) |
| 81 | * @see jade.jademx.server.JadeMXServer#getMBeanServer() |
| 82 | */ |
| 83 | public MBeanServer getMBeanServer() { |
| 84 | return mBeanServer; |
| 85 | } |
| 86 | |
| 87 | /* (non-Javadoc) |
| 88 | * @see java.lang.Object#toString() |
| 89 | */ |
| 90 | public String toString() { |
| 91 | StringBuffer sb = new StringBuffer(); |
| 92 | int parmCount = signature.length; |
| 93 | for ( int i = 0; i < parmCount; i++ ) { |
| 94 | if ( i > 0 ) { |
| 95 | sb.append(", "); |
| 96 | } |
| 97 | sb.append(signature[i].getCanonicalName()); |
| 98 | sb.append(" "); |
| 99 | sb.append(arguments[i].toString()); |
| 100 | } |
| 101 | return |
| 102 | getClass().getCanonicalName() + "[" + className + "." + |
| 103 | methodName + "(" + sb.toString() + ")]"; |
| 104 | } |
| 105 | |
| 106 | } |