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package com.sun.enterprise.connectors.util;

import com.sun.enterprise.deployment.*;
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 managed connection factory configuration parser. It parses the 
 *  ra.xml file for the managed connection factory specific configurations 
 *  like managed connection factory javabean  properties .
 *
 *  @author      Srikanth P
 *
 */

public class MCFConfigParserImpl implements MCFConfigParser {

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

    public MCFConfigParserImpl() {

    }

    /* Parses the ra.xml and returns all the connection definition names. 
     * Since there is no specific connection definition attribute in the 
     * , connection factory interface is 
     * taken as the connection definition name. 
     *
     * @param desc ConnectorDescriptor pertaining to rar.
     * @return Array of Connection definition names.
     * @throws  ConnectorRuntimeException If moduleDir is null.
     *          If corresponding rar is not deployed. 
     *
     */

    public String[] getConnectionDefinitionNames(ConnectorDescriptor desc)
               throws ConnectorRuntimeException
    {

        if(desc == null) {
            throw new ConnectorRuntimeException("Invalid arguments");
        }

        ConnectionDefDescriptor cdd[] = ddTransformUtil.getConnectionDefs(desc);

        String[] connDefNames = new String[0];
        if(cdd != null) {
            connDefNames = new String[cdd.length];
            for(int i=0;i elements in a given rar.
     *  @return Javabean properties with the propety names and values
     *          of propeties. 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 no connection definition name is found in ra.xml
     */

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

        ConnectionDefDescriptor cdd = getConnectionDefinition(desc, connectionDefName);
        if (cdd == null) return null;

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

    private ConnectionDefDescriptor getConnectionDefinition(ConnectorDescriptor desc, String connectionDefName)
            throws ConnectorRuntimeException {
        if(desc == null || connectionDefName == null) {
            throw new ConnectorRuntimeException("Invalid arguments");
        }
        OutboundResourceAdapter ora =
                      desc.getOutboundResourceAdapter();
        if(ora == null || ora.getConnectionDefs().size() == 0) {
            return null;
        }
        Set connectionDefs = ora.getConnectionDefs();
        if(connectionDefs== null || connectionDefs.size() == 0) {
            return null;
        }
        Iterator iter = connectionDefs.iterator();
        ConnectionDefDescriptor cdd = null;
        boolean connectionDefFound=false;
        while(iter.hasNext()) {
            cdd = (ConnectionDefDescriptor)iter.next();
            if(connectionDefName.equals(cdd.getConnectionFactoryIntf())) {
                connectionDefFound=true;
                break;
            }
        }

        if(!connectionDefFound) {
            if (_logger.isLoggable(Level.FINE)) {
                _logger.log(Level.FINE,
                        "No such connectiondefinition found in ra.xml",
                        connectionDefName);
            }
            throw new ConnectorRuntimeException(
                  "No such connectiondefinition found in ra.xml : " +
                  connectionDefName);
        }

        /* 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
        */
        return cdd;
    }


    public List getConfidentialProperties(ConnectorDescriptor desc, String rarName, String... keyFields)
            throws ConnectorRuntimeException {
        if(keyFields == null || keyFields.length == 0 || keyFields[0] == null){
            throw new ConnectorRuntimeException("ConnectionDefinitionName must be specified");
        }
        ConnectionDefDescriptor cdd = getConnectionDefinition(desc, keyFields[0]);
        List confidentialProperties = new ArrayList();
        if(cdd != null){
            Set configProperties = cdd.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;
    }
}