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/*
* $Id: MBeanHelper.java,v 1.7 2007/05/05 05:25:34 tcfujii Exp $
* @author: alexkrav
*
* $Log: MBeanHelper.java,v $
* Revision 1.7 2007/05/05 05:25:34 tcfujii
* CDDL+GPL header updates.
*
* Revision 1.6 2007/04/03 01:13:38 llc
* Issue number: 2752
* Obtained from:
* Submitted by: Lloyd Chambers
* Reviewed by: 3 day timeout expired
*
* Revision 1.5 2006/03/08 01:34:34 kravtch
* Bug #6239362(many MBean server validation messages are not i18n-ed)
* admin-core/admin:
* - "Target exception message" string literal put into localstrings
* Submitted by: kravtch
* Reviewed by: Kedar
* Affected modules admin-core/admin;
* Tests passed: QLT/EE
*
* Revision 1.4 2005/12/25 03:47:28 tcfujii
* Updated copyright text and year.
*
* Revision 1.3 2005/08/16 22:19:29 kravtch
* M3: 1. ConfigMBeans: Support for generic getXXXNamesList() operation (request from management-rules).
* 2. MBeanRegistry: support for getElementPrintName() to provide readable element's description for validator's messages
* Submitted by: kravtch
* Reviewed by: Shreedhar
* Affected modules admin-core/admin
* Tests passed: QLT/EE + devtests
*
* Revision 1.2 2005/06/27 21:19:40 tcfujii
* Issue number: CDDL header updates.
*
* Revision 1.1.1.1 2005/05/27 22:52:02 dpatil
* GlassFish first drop
*
* Revision 1.9 2004/11/14 07:04:16 tcfujii
* Updated copyright text and/or year.
*
* Revision 1.8 2004/02/20 03:56:05 qouyang
*
*
* First pass at code merge.
*
* Details for the merge will be published at:
* http://javaweb.sfbay.sun.com/~qouyang/workspace/PE8FCSMerge/02202004/
*
* Revision 1.7 2003/12/13 16:52:50 qouyang
* MERGE: from PE8FCS_BRANCH (archived by TAG S1AS8PE-FCSBRANCH-MERGE-POINT-12_Dec_2003)
* to HEAD (archived by TAG S1AS8EE-HEADBRANCH-PRE-MERGE-12_Dec_2003)
*
* Revision 1.6.4.2 2004/02/02 07:25:12 tcfujii
* Copyright updates notices; reviewer: Tony Ng
*
* Revision 1.6.4.1 2003/12/01 21:52:37 kravtch
* Bug #4939964
* Reviewer: Sridatta
* admin.config.ManagedConfigBean.createChildByType() now analyzes registryEntries.AttributeInfo for each "empty" valued attribute (similar to setAttribute(), but could not use MBeanAttributeInfo because MBean is not exists yet). If "emptyValueAllowed" field in registrEntry.AttributeInfo is not "true", then "empty" attribute will be ignored.
*
* Revision 1.6 2003/09/26 21:33:02 kravtch
* Bug #4926266
* Reviewer: Sridatta
* - new test cases added to Validator's ThreadPoolTest DELETE - isThreadPoolReferencedFromOrb and isThreadPoolReferencedFromResAdapter to avoid deleteion of the referenced element
* - correspondent localStrings are added;
* - ManagedConfigBean.deleteSelf() now throws Exception;
* - MBeanHelper.invokeOperationInBean() will not suppress runtime exceptions any more;
*
* Revision 1.5 2003/09/08 00:55:27 se113266
* Bugsfixed: 4917554
* CheckinComments: isSignatureEqual throws NPE when signature==null and
* sign!=null. Added a check
* Reviewed by: Sridatta
*
* Revision 1.4 2003/08/29 02:16:40 kravtch
* Bug #4910964 (and similar others)
* Reviewer: Sridatta
*
* Exception handling and logging enchancements:
* - extraction target exception for MBeanException and TargetInvocationException:
* - switch to localStrings usage;
* - throwing exception for config MBeans if error in creation of ConfigBean;
* - exceptions for null-results in configbean operations,like getXXbyYYY() [changes commented because of crashing of quick test]
*
* Revision 1.3 2003/07/18 20:14:42 kravtch
* 1. ALL config mbeans are now covered by descriptors.xml
* 2. new infrastructure for runtime mbeans is added
* 3. generic constructors added to jsr77Mdl beans (String[])
* 4. new test cases are added to admintest
* 5. MBeanRegistryFactory has now different methods to obtain admin/runtime registries
* 6. runtime-descriptors xml-file is added to build
*
* Revision 1.2 2003/06/25 20:03:36 kravtch
* 1. java file headers modified
* 2. properties handling api is added
* 3. fixed bug for xpathes containing special symbols;
* 4. new testcases added for jdbc-resource
* 5. introspector modified by not including base classes operations;
*
*
*/
package com.sun.enterprise.admin;
import java.util.ArrayList;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import com.sun.enterprise.admin.meta.MBeanMetaConstants;
import com.sun.enterprise.admin.meta.MBeanRegistryFactory;
import com.sun.enterprise.admin.meta.MBeanRegistry;
import com.sun.enterprise.admin.meta.MBeanRegistryEntry;
import com.sun.enterprise.admin.meta.naming.MBeanNamingDescriptor;
import com.sun.enterprise.admin.meta.naming.MBeanNamingInfo;
//import com.sun.enterprise.config.ConfigBean;
//JMX imports
import javax.management.MBeanException;
import javax.management.Descriptor;
import javax.management.ObjectName;
import javax.management.MBeanInfo;
import javax.management.MBeanOperationInfo;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanParameterInfo;
import javax.management.modelmbean.ModelMBeanInfo;
// Logging
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.logging.LogDomains;
import com.sun.enterprise.util.i18n.StringManager;
/**
*
*/
//*******************************************************************************************
public class MBeanHelper implements MBeanMetaConstants
{
// Logging
static protected final Logger _sLogger = LogDomains.getLogger(LogDomains.ADMIN_LOGGER);
static protected final StringManager _localStrings = StringManager.getManager( BaseAdminMBean.class );
public static final Object INVOKE_ERROR_SIGNAL_OBJECT = new Object();
//********************************************************************************************************************
// get Descriptor's field value by its name
public static Object getDescriptorFieldValue(ModelMBeanInfo info, String name) throws MBeanException
{
Descriptor descr = info.getMBeanDescriptor();
return descr.getFieldValue(name);
}
//********************************************************************************************************************
// get "Location" field value from MBean's Descriptor
public static String[] getLocation(ModelMBeanInfo info) throws MBeanException
{
return (String[])getDescriptorFieldValue(info, NMLOCATION_FIELD_NAME);
}
//********************************************************************************************************************
// get "XPath" field value from MBean's Descriptor (contains XPath pattern from mbean-descriptor-entry)
public static String getXPathPattern(ModelMBeanInfo info) throws MBeanException
{
return (String)getDescriptorFieldValue(info, XPATH_FIELD_NAME);
}
/* //********************************************************************************************************************
public static ObjectName[] getChildObjectNames(ModelMBeanInfo parentInfo, ConfigBean[] children) throws Exception
{
ObjectName[] objNames = new ObjectName[children.length];
for(int i=0; i<children.length; i++)
objNames[i] = getChildObjectName(parentInfo, children[i]);
return objNames;
}
//********************************************************************************************************************
public static ObjectName getChildObjectName(ModelMBeanInfo parentInfo, ConfigBean childBean) throws Exception
{
Descriptor descr = parentInfo.getMBeanDescriptor();
//String rel = childBean.getRelativeXPath();
String rel = childBean.getAbsoluteXPath("");
rel = rel.substring(rel.lastIndexOf('/')+1);
String xpath = (String)descr.getFieldValue(XPATH_FIELD_NAME);
String prefix;
int pos = rel.indexOf('[');
if(pos>0)
prefix = xpath+"/"+rel.substring(0, pos);
else
prefix = xpath+"/"+rel;
MBeanRegistry registry = MBeanRegistryFactory.getMBeanRegistry();
MBeanRegistryEntry entry = registry.findMBeanRegistryEntryByXPathPattern(prefix);
MBeanNamingDescriptor namingDescr = entry.getNamingDescriptor();
//
String[] parentLocation = (String[])descr.getFieldValue(NMLOCATION_FIELD_NAME);
String[] childLocation = parentLocation;
childLocation = new String[parentLocation.length+1];
for(int i=0; i<parentLocation.length; i++)
{
childLocation[i] = parentLocation[i];
}
if(pos>0)
{
int beg = rel.indexOf('=', pos) + 1;
if(rel.charAt(beg)=='\'')
beg++;
int end = rel.indexOf(']', beg) - 1;
if(rel.charAt(end)=='\'')
end--;
childLocation[parentLocation.length]=rel.substring(beg,end+1);
}
else
childLocation[parentLocation.length]=rel;
MBeanNamingInfo nmi = new MBeanNamingInfo(namingDescr, namingDescr.getType(), childLocation);
return nmi.getObjectName();
}
*/
//********************************************************************************************************************
private static Class getAttributeClass(String signature) throws Exception
{
if (signature.equals(Boolean.TYPE.getName()))
return Boolean.TYPE;
else if (signature.equals(Byte.TYPE.getName()))
return Byte.TYPE;
else if (signature.equals(Character.TYPE.getName()))
return Character.TYPE;
else if (signature.equals(Double.TYPE.getName()))
return Double.TYPE;
else if (signature.equals(Float.TYPE.getName()))
return Float.TYPE;
else if (signature.equals(Integer.TYPE.getName()))
return Integer.TYPE;
else if (signature.equals(Long.TYPE.getName()))
return Long.TYPE;
else if (signature.equals(Short.TYPE.getName()))
return Short.TYPE;
else {
try {
ClassLoader cl=Thread.currentThread().getContextClassLoader();
if( cl!=null )
return cl.loadClass(signature);
} catch( ClassNotFoundException e ) {
}
// try {
return Class.forName(signature);
// } catch (ClassNotFoundException e) {
// throw new ReflectionException
// (e, "Cannot find Class for " + signature);
// }
}
}
//********************************************************************************************************************
public static String[] getParamTypesFromOperationInfo(MBeanOperationInfo opInfo)
{
MBeanParameterInfo[] params = opInfo.getSignature();
if(params==null)
return new String[0];
ArrayList signature = new ArrayList();
for(int i=0; i<params.length; i++)
signature.add(params[i].getType());
return (String[])signature.toArray(new String[signature.size()]);
}
//********************************************************************************************************************
public static Class[] getSignatureFromOperationInfo(MBeanOperationInfo opInfo) throws Exception
{
MBeanParameterInfo[] params = opInfo.getSignature();
if(params==null)
return new Class[0];
ArrayList signature = new ArrayList();
for(int i=0; i<params.length; i++)
signature.add(getAttributeClass(params[i].getType()));
return (Class[])signature.toArray(new Class[signature.size()]);
}
//********************************************************************************************************************
public static MBeanOperationInfo findMatchingOperationInfo(MBeanInfo mbeanInfo, String name, String signature[])
{
MBeanOperationInfo[] opInfos = mbeanInfo.getOperations();
if(opInfos==null)
return null;
boolean bMatch;
for(int i=0; i<opInfos.length; i++)
{
if(name.equals(opInfos[i].getName()))
{
String sign[] = getParamTypesFromOperationInfo(opInfos[i]);
if(isSignaturesEqual(sign, signature))
return opInfos[i];
}
}
return null;
}
//********************************************************************************************************************
public static MBeanAttributeInfo findMatchingAttributeInfo(MBeanInfo mbeanInfo, String name)
{
MBeanAttributeInfo[] attrInfos = mbeanInfo.getAttributes();
if(attrInfos==null)
return null;
boolean bMatch;
for(int i=0; i<attrInfos.length; i++)
{
if(name.equals(attrInfos[i].getName()))
{
return attrInfos[i];
}
}
return null;
}
//********************************************************************************************************************
public static Object invokeOperationInBean(MBeanOperationInfo opInfo, Object bean, Object[] params) throws Exception
{
return invokeOperationInBean(opInfo.getName(), opInfo, bean, params);
}
//********************************************************************************************************************
public static Object invokeOperationInBean(String opName, MBeanOperationInfo opInfo, Object bean, Object[] params) throws Exception
{
Method method = null;
try
{
method = findMatchingOperationMethod(opName, opInfo, bean);
}
catch (Exception e)
{
if(e instanceof SecurityException)
_sLogger.log(Level.FINEST, "invokeOperationInBean() failed", e);
}
if(method==null)
return INVOKE_ERROR_SIGNAL_OBJECT;
return method.invoke(bean, params);
}
//********************************************************************************************************************
public static Method findMatchingOperationMethod(String opName, MBeanOperationInfo opInfo, Object bean) throws Exception
{
// try
{
Class signature[] = getSignatureFromOperationInfo(opInfo);
return bean.getClass().getMethod(opName, signature);
}
/* catch (NoSuchMethodException nsme)
{
}
catch (SecurityException nsme)
{
}
return null;
*/
}
//********************************************************************************************************************
private static boolean isSignaturesEqual(String sign[], String signature[])
{
//signature test
if ((signature==null||signature.length==0) &&
(sign==null||sign.length==0) )
return true;
if((signature==null && sign!=null) ||
(signature!=null && sign==null) )
return false;
if(signature.length != sign.length)
return false;
boolean bMatch = true;
for(int j=0; j<sign.length; j++)
{
if(!sign[j].equals(signature[j]))
{
bMatch = false;
break;
}
}
return bMatch;
}
//****************************************************************************
public static MBeanException extractAndWrapTargetException(Exception e, String wrapMsg)
{
while(e instanceof InvocationTargetException ||
e instanceof MBeanException)
{
if(e instanceof InvocationTargetException)
{
Throwable t = ((InvocationTargetException)e).getTargetException();
if (t instanceof Exception)
e = (Exception)t;
else
e = new Exception(t.getMessage());
}
else
if(e instanceof MBeanException)
{
e = ((MBeanException)e).getTargetException();
}
}
String msg = e.getMessage();
String targetMsgPref = _localStrings.getString( "admin.server.core.mbean.target_exception_prefix");
if(msg!=null)
return new MBeanException(e, wrapMsg + "\n"+ targetMsgPref + ": " + e.getMessage());
else
return new MBeanException(e, wrapMsg);
}
}
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