Clover coverage report - groovy - 1.0-beta-7
Coverage timestamp: Wed Sep 29 2004 16:55:52 BST
file stats: LOC: 165   Methods: 8
NCLOC: 94   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
GroovyMBean.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: GroovyMBean.java,v 1.3 2004/07/31 03:39:28 jstrachan Exp $
 3   
 
 4   
  Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
 5   
 
 6   
  Redistribution and use of this software and associated documentation
 7   
  ("Software"), with or without modification, are permitted provided
 8   
  that the following conditions are met:
 9   
 
 10   
  1. Redistributions of source code must retain copyright
 11   
     statements and notices.  Redistributions must also contain a
 12   
     copy of this document.
 13   
 
 14   
  2. Redistributions in binary form must reproduce the
 15   
     above copyright notice, this list of conditions and the
 16   
     following disclaimer in the documentation and/or other
 17   
     materials provided with the distribution.
 18   
 
 19   
  3. The name "groovy" must not be used to endorse or promote
 20   
     products derived from this Software without prior written
 21   
     permission of The Codehaus.  For written permission,
 22   
     please contact info@codehaus.org.
 23   
 
 24   
  4. Products derived from this Software may not be called "groovy"
 25   
     nor may "groovy" appear in their names without prior written
 26   
     permission of The Codehaus. "groovy" is a registered
 27   
     trademark of The Codehaus.
 28   
 
 29   
  5. Due credit should be given to The Codehaus -
 30   
     http://groovy.codehaus.org/
 31   
 
 32   
  THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
 33   
  ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 34   
  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 35   
  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 36   
  THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 37   
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 38   
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 39   
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 40   
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 41   
  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 42   
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 43   
  OF THE POSSIBILITY OF SUCH DAMAGE.
 44   
 
 45   
  */
 46   
 package groovy.util;
 47   
 
 48   
 import groovy.lang.GroovyObjectSupport;
 49   
 import groovy.lang.GroovyRuntimeException;
 50   
 
 51   
 import java.util.HashMap;
 52   
 import java.util.Map;
 53   
 import java.io.IOException;
 54   
 
 55   
 import javax.management.Attribute;
 56   
 import javax.management.JMException;
 57   
 import javax.management.MBeanException;
 58   
 import javax.management.MBeanInfo;
 59   
 import javax.management.MBeanOperationInfo;
 60   
 import javax.management.MBeanParameterInfo;
 61   
 import javax.management.MBeanServer;
 62   
 import javax.management.ObjectName;
 63   
 import javax.management.MBeanServerConnection;
 64   
 
 65   
 
 66   
 /**
 67   
  * A GroovyObject facade for an underlying MBean which acts like a normal 
 68   
  * groovy object but which is actually implemented via 
 69   
  * an underlying JMX MBean. 
 70   
  * Properties and normal method invocations
 71   
  * delegate to the MBeanServer to the actual MBean.
 72   
  * 
 73   
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 74   
  * @version $Revision: 1.3 $
 75   
  */
 76   
 public class GroovyMBean extends GroovyObjectSupport {
 77   
 
 78   
     private MBeanServerConnection server;
 79   
     private ObjectName name;
 80   
     private MBeanInfo beanInfo;
 81   
     private Map operations = new HashMap();
 82   
 
 83  0
     public GroovyMBean(MBeanServerConnection server, ObjectName name) throws JMException, IOException {
 84  0
         this.server = server;
 85  0
         this.name = name;
 86  0
         this.beanInfo = server.getMBeanInfo(name);
 87   
         
 88  0
         MBeanOperationInfo[] operationInfos = beanInfo.getOperations();
 89  0
         for (int i = 0; i < operationInfos.length; i++ ) {
 90  0
             MBeanOperationInfo info = operationInfos[i];
 91  0
             operations.put(info.getName(), createSignature(info));
 92   
         }
 93   
     }
 94   
 
 95  0
     public MBeanServerConnection server() {
 96  0
         return server;
 97   
     }
 98   
     
 99  0
     public ObjectName name() {
 100  0
         return name;
 101   
     }
 102   
     
 103  0
     public MBeanInfo info() {
 104  0
         return beanInfo;
 105   
     }
 106   
     
 107  0
     public Object getProperty(String property) {
 108  0
         try {
 109  0
             return server.getAttribute(name, property);
 110   
         }
 111   
         catch (MBeanException e) {
 112  0
             throw new GroovyRuntimeException("Could not access property: " + property + ". Reason: " + e, e.getTargetException());
 113   
         }
 114   
         catch (Exception e) {
 115  0
             throw new GroovyRuntimeException("Could not access property: " + property + ". Reason: " + e, e);
 116   
         }
 117   
     }
 118   
     
 119  0
     public void setProperty(String property, Object value) {
 120  0
         try {
 121  0
             server.setAttribute(name, new Attribute(property, value));
 122   
         }
 123   
         catch (MBeanException e) {
 124  0
             throw new GroovyRuntimeException("Could not set property: " + property + ". Reason: " + e, e.getTargetException());
 125   
         }
 126   
         catch (Exception e) {
 127  0
             throw new GroovyRuntimeException("Could not set property: " + property + ". Reason: " + e, e);
 128   
         }
 129   
     }
 130   
     
 131  0
     public Object invokeMethod(String method, Object arguments) {
 132  0
         String[] signature = (String[]) operations.get(method);
 133  0
         if (signature != null) {
 134  0
             Object[] argArray = null;
 135  0
             if (arguments instanceof Object[]) {
 136  0
                 argArray = (Object[]) arguments;
 137   
             }
 138   
             else {
 139  0
                 argArray = new Object[] { arguments };
 140   
             }
 141  0
             try {
 142  0
                 return server.invoke(name, method, argArray, signature);
 143   
             }
 144   
             catch (MBeanException e) {
 145  0
                 throw new GroovyRuntimeException("Could not invoke method: " + method + ". Reason: " + e, e.getTargetException());
 146   
             }
 147   
             catch (Exception e) {
 148  0
                 throw new GroovyRuntimeException("Could not invoke method: " + method + ". Reason: " + e, e);
 149   
             }
 150   
         }
 151   
         else {
 152  0
             return super.invokeMethod(method, arguments);
 153   
         }
 154   
     }
 155   
 
 156  0
     protected String[] createSignature(MBeanOperationInfo info) {
 157  0
         MBeanParameterInfo[] params = info.getSignature();
 158  0
         String[] answer = new String[params.length];
 159  0
         for (int i = 0; i < params.length; i++) {
 160  0
             answer[i] = params[i].getType();
 161   
         }
 162  0
         return answer;
 163   
     }
 164   
 }
 165