package com.c2kernel.lifecycle.instance.predefined.entitycreation;


import java.util.ArrayList;

import com.c2kernel.collection.MembershipException;
import com.c2kernel.common.CannotManageException;
import com.c2kernel.common.ObjectAlreadyExistsException;
import com.c2kernel.common.ObjectCannotBeUpdated;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.entity.TraceableEntity;
import com.c2kernel.events.Event;
import com.c2kernel.events.History;
import com.c2kernel.lifecycle.CompositeActivityDef;
import com.c2kernel.lifecycle.instance.stateMachine.States;
import com.c2kernel.lifecycle.instance.stateMachine.Transitions;
import com.c2kernel.lookup.DomainPath;
import com.c2kernel.lookup.EntityPath;
import com.c2kernel.persistency.ClusterStorageException;
import com.c2kernel.persistency.outcome.Viewpoint;
import com.c2kernel.process.Gateway;
import com.c2kernel.process.module.ModuleImport;
import com.c2kernel.property.Property;
import com.c2kernel.property.PropertyArrayList;
import com.c2kernel.utils.LocalObjectLoader;
import com.c2kernel.utils.Logger;

/**
 * Complete Structure for new item
 *
 * @version $Revision: 1.8 $ $Date: 2006/03/03 13:52:21 $
 */

public class NewItem extends ModuleImport {

    public String initialPath;
    public String workflow;
    public ArrayList<Property> properties  = new ArrayList<Property>();
    public ArrayList<Aggregation> aggregationList = new ArrayList<Aggregation>();
    public ArrayList<Dependency> dependencyList = new ArrayList<Dependency>();
    public ArrayList<Outcome> outcomes = new ArrayList<Outcome>();
    private String ns;

    public NewItem() {
    }

    public NewItem(String name, String initialPath, String wf) {
        this();
        this.name = name;
        this.initialPath = initialPath;
        this.workflow = wf;
    }

	public void setNamespace(String ns) {
		this.ns = ns;
		if (initialPath == null) initialPath = "/desc/"+ns;
	}
	
	public String getNamespace() {
		return ns;
	}

	public void create(int agentId) throws ObjectCannotBeUpdated, ObjectNotFoundException, CannotManageException, ObjectAlreadyExistsException {
        DomainPath domPath = new DomainPath(new DomainPath(initialPath), name);
        if (domPath.exists())
            throw new ObjectAlreadyExistsException(domPath+" already exists!", "");

        // create item
        EntityPath entPath = Gateway.getLDAPLookup().getNextKeyManager().generateNextEntityKey();
        TraceableEntity newItem = (TraceableEntity)Gateway.getCorbaServer().createEntity(entPath);
        Gateway.getLDAPLookup().add(entPath);

        // set the name property
        properties.add(new Property("Name", name));

        // init the new item
        try {

        	// find workflow def
        	CompositeActivityDef compact = (CompositeActivityDef)LocalObjectLoader.getActDef(workflow, "0");
            newItem.initialise(
                    agentId,
                    Gateway.getMarshaller().marshall(new PropertyArrayList(properties)),
                    Gateway.getMarshaller().marshall(compact.instantiate()));
        } catch (Exception ex) {
            Logger.error("Error initialising new item");
            Logger.error(ex);
            throw new CannotManageException("Problem initialising new item. See server log.", "");
        }

        // import outcomes
        
        History hist = new History(entPath.getSysKey(), null);
        for (Outcome thisOutcome : outcomes) {
            Event newEvent = hist.addEvent("system", "Admin", Transitions.DONE, "Import", "Import", "Import", States.FINISHED);
            com.c2kernel.persistency.outcome.Outcome newOutcome = new com.c2kernel.persistency.outcome.Outcome(newEvent.getID(), thisOutcome.getData(ns), thisOutcome.schema, thisOutcome.version);
            Viewpoint newLastView = new Viewpoint(entPath.getSysKey(), thisOutcome.schema, thisOutcome.viewname, thisOutcome.version, newEvent.getID());
            try {
				Gateway.getStorage().put(entPath.getSysKey(), newOutcome, null);
				Gateway.getStorage().put(entPath.getSysKey(), newLastView, null);
			} catch (ClusterStorageException e) {
				throw new ObjectCannotBeUpdated("Could not store data for view "+thisOutcome.schema+"/"+thisOutcome.viewname+" in "+name);
			}
		}
        
        // create collections

        for (Dependency element: dependencyList) {
            try {
                Gateway.getStorage().put(entPath.getSysKey(), element.create(), null);
            } catch (ClusterStorageException ex) {
                Logger.error(ex);
                throw new CannotManageException("Could not create Dependency "+element.name, "");
            } catch (MembershipException ex) {
                Logger.error(ex);
                throw new CannotManageException("A specified member is not of the correct type in "+element.name, "");
            }
        }

        for (Aggregation element : aggregationList) {
            try {
                Gateway.getStorage().put(entPath.getSysKey(), element.create(), null);
            } catch (ClusterStorageException ex) {
                Logger.error(ex);
                throw new CannotManageException("Could not create Aggregation "+element.name, "");
            } catch (MembershipException ex) {
	            Logger.error(ex);
	            throw new CannotManageException("A specified member is not of the correct type in "+element.name, "");
	        }
        }
        // register domain path
        domPath.setEntity(entPath);
        Gateway.getLDAPLookup().add(domPath);
    }

	@Override
	public String getPath(String ns) {
		setNamespace(ns);
		return initialPath;
	}
}