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package com.sun.enterprise.deployment.phasing;

import com.sun.enterprise.deployment.backend.DeploymentStatus;
import com.sun.enterprise.deployment.backend.DeploymentRequest;
import com.sun.enterprise.deployment.backend.DeploymentLogger;
import com.sun.enterprise.deployment.backend.DeploymentEventInfo;
import com.sun.enterprise.deployment.backend.DeploymentEvent;
import com.sun.enterprise.deployment.backend.DeploymentEventType;
import com.sun.enterprise.deployment.backend.IASDeploymentException;
import com.sun.enterprise.deployment.util.DeploymentProperties;

import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.resource.Resource;
import com.sun.enterprise.resource.ResourcesXMLParser;

import java.util.List;
import java.util.ArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * This class manages the deletion of the resources from 
 * sun-resources.xml that need to deleted prior to resource adapter unloading
 */
public class PreResDeletionPhase extends ResourcePhase {

    /** Deployment Logger object for this class */
    public static final Logger sLogger = DeploymentLogger.get();
    
    /** string manager */
    private static StringManager localStrings =
        StringManager.getManager(PreResDeletionPhase.class);
   
    /** 
     * Creates a new instance of PreResDeletionPhase 
     * @param deploymentCtx context object for the deployment
     */
    public PreResDeletionPhase(DeploymentContext deploymentCtx) 
    {
        this.deploymentCtx = deploymentCtx;        
        this.name = PRE_RES_DELETION;
    }

    /**
     * Phase specific execution logic will go in this method.
     * Any phase implementing
     * this class will provide its implementation for this method.
     * @param req Deployment request object
     * @param phaseCtx the DeploymentPhaseContext object
     */
    public void runPhase(DeploymentPhaseContext phaseCtx)
    {
        DeploymentStatus status = phaseCtx.getDeploymentStatus();

        try {
            DeploymentRequest req = phaseCtx.getDeploymentRequest();
                                                                      
            prePhaseNotify(getPrePhaseEvent(req));
            doResourceOperation(req);
            postPhaseNotify(getPostPhaseEvent(req));
                                                                      
            phaseCtx.getDeploymentStatus().setStageStatus(DeploymentStatus.SUCCESS);
        } catch(Exception e) {
            status.setStageStatus(DeploymentStatus.WARNING);
            status.setStageException(e);
            status.setStageStatusMessage(e.getMessage());
        }
    }
                                                                      
    /**
     * Event that will be broadcasted at the start of the phase
     * @param req Deployment request object
     * @return DeploymentEvent
     */
    private DeploymentEvent getPrePhaseEvent(DeploymentRequest req)
    {
        return new DeploymentEvent(DeploymentEventType.PRE_RES_DELETE, new DeploymentEventInfo(req));
    }
                                                                      
    /**
                                                                      
     * Event that will be broadcasted at the end of the phase
     * @return DeploymentEvent      */
    private DeploymentEvent getPostPhaseEvent(DeploymentRequest req)    {
        return new DeploymentEvent(DeploymentEventType.POST_RES_DELETE, new DeploymentEventInfo(req));
    }
                                                                      
    // redeployment for resource deletion phase is same as undeployment
    public void handleRedeployment(List<String> targetList,
        List<Resource> resourceList) throws Exception {
        handleUndeployment(targetList, resourceList);
    }
                                                                      
    // no op if it's deployment     
    public void handleDeployment(List<String> targetList,
        List<Resource> resourceList) throws Exception {
    }
                                                                      
    public String getActualAction(String resAction) {
        if (resAction.equals(DeploymentProperties.RES_DEPLOYMENT)) {
            return DeploymentProperties.RES_NO_OP;
        } else {
            return resAction;
        }
    }

    public List<Resource> getRelevantResources(List<Resource> allResources) {
        return ResourcesXMLParser.getConnectorResourcesList(allResources, false);
    }
}