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package com.sun.enterprise.connectors.util;

import com.sun.enterprise.deployment.*;
import com.sun.enterprise.connectors.*;
import com.sun.logging.LogDomains;
import com.sun.appserv.connectors.internal.api.ConnectorRuntimeException;

import java.util.logging.*;
import java.util.*;
import java.lang.*;

/**
 *  This is message listener configuration parser. It parses the 
 *  ra.xml file for the message listener specific configurations 
 *  like activationSpec javabean  properties, message listener types .
 *
 *  @author      Srikanth P
 *
 */

public class MessageListenerConfigParserImpl implements 
                               MessageListenerConfigParser {

    private final static Logger _logger = LogDomains.getLogger(MessageListenerConfigParserImpl.class, LogDomains.RSR_LOGGER);
   
    /**
     *  Default constructor.
     *
     */

    public MessageListenerConfigParserImpl() {

    }

    /**
     * Return the ActivationSpecClass name for given rar and messageListenerType
     * @param desc ConnectorDescriptor pertaining to rar.
     * @param messageListenerType MessageListener type
     * @throws  ConnectorRuntimeException If moduleDir is null.
     *          If corresponding rar is not deployed. 
     */

    public String getActivationSpecClass( ConnectorDescriptor desc, 
             String messageListenerType) throws ConnectorRuntimeException
    {
        if(desc == null) {
            throw new ConnectorRuntimeException("Invalid arguments");
        }

        MessageListener messageListeners[] = 
               ddTransformUtil.getMessageListeners(desc);

        if(messageListeners != null) {
            for(int i=0;i sub-elements in  
     *          element in a given rar.
     *  @return Javabean properties with the property names and values
     *          of properties. The property values will be the values
     *          mentioned in ra.xml if present. Otherwise it will be the
     *          default values obtained by introspecting the javabean.
     *          In both the case if no value is present, empty String is
     *          returned as the value.
     *  @throws  ConnectorRuntimeException if either of the parameters are null.
     *           If corresponding rar is not deployed i.e moduleDir is invalid. 
     *           If messagelistener type is not found in ra.xml
     */

    public Properties getJavaBeanProps(ConnectorDescriptor desc, 
               String messageListenerType, String rarName) throws ConnectorRuntimeException 
    {

        MessageListener messageListener = getMessageListener(desc, messageListenerType);

        /* ddVals           -> Properties present in ra.xml
        *  introspectedVals -> All properties with values
        *                      obtained by introspection of resource
        *                      adapter javabean
        *  mergedVals       -> merged props of raConfigPros and
        *                      allraConfigPropsWithDefVals
        */

        Properties mergedVals = null;
        Set ddVals = messageListener.getConfigProperties();
        String className = messageListener.getActivationSpecClass();
        if(className != null && className.length() != 0) {
            Properties introspectedVals = configParserUtil.introspectJavaBean(
                               className,ddVals, false, rarName);
            mergedVals = configParserUtil.mergeProps(ddVals,introspectedVals);
        }
        return mergedVals;
    }

    private MessageListener getMessageListener(ConnectorDescriptor desc, String messageListenerType)
            throws ConnectorRuntimeException {
        if(desc == null || messageListenerType == null) {
            throw new ConnectorRuntimeException("Invalid arguments");
        }

        MessageListener allMessageListeners[] =
               ddTransformUtil.getMessageListeners(desc);

        MessageListener messageListener = null;
        for(int i=0;i getConfidentialProperties(ConnectorDescriptor desc, String rarName, String... keyFields)
            throws ConnectorRuntimeException {
        if(keyFields == null || keyFields.length == 0 || keyFields[0] == null){
            throw new ConnectorRuntimeException("MessageListenerType must be specified");
        }
        MessageListener messageListener = getMessageListener(desc, keyFields[0]);
        List confidentialProperties = new ArrayList();
        Set configProperties = messageListener.getConfigProperties();
        if(configProperties != null){
            Iterator iterator = configProperties.iterator();
            while(iterator.hasNext()){
                ConnectorConfigProperty ccp = (ConnectorConfigProperty)iterator.next();
                if(ccp.isConfidential()){
                    confidentialProperties.add(ccp.getName());
                }
            }
        }
        return confidentialProperties;
    }

    /** Returns the Properties object consisting of propertyname as the
     *  key and datatype as the value.
     *  @param  messageListenerType message listener type.It is uniqie
     *          across all  sub-elements in  
     *          element in a given rar.
     *  @return Properties object with the property names(key) and datatype
     *          of property(as value). 
     *  @throws  ConnectorRuntimeException if either of the parameters are null.
     *           If corresponding rar is not deployed i.e moduleDir is invalid. 
     *           If messagelistener type is not found in ra.xml
     */
    public Properties getJavaBeanReturnTypes(ConnectorDescriptor desc, 
               String messageListenerType, String rarName) throws ConnectorRuntimeException
    {

        MessageListener messageListener = getMessageListener(desc, messageListenerType);

        /* ddVals           -> Properties present in ra.xml
        *  introspectedVals -> All properties with values
        *                      obtained by introspection of resource
        *                      adapter javabean
        *  mergedVals       -> merged props of raConfigPros and
        *                      allraConfigPropsWithDefVals
        */

        Properties mergedVals = null;
        Set ddVals = messageListener.getConfigProperties();
        String className = messageListener.getActivationSpecClass();
        if(className != null && className.length() != 0) {
            Properties introspectedVals =
               configParserUtil.introspectJavaBeanReturnTypes(className,ddVals, rarName);
            mergedVals = configParserUtil.mergePropsReturnTypes(
                                              ddVals,introspectedVals);
        }
        return mergedVals;
    }
}




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