/*******************************************************************************
 * Copyright (c) 2003, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 * IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jst.j2ee.internal.deployables;

import java.util.Arrays;
import java.util.Iterator;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.jst.j2ee.application.Application;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveConstants;
import org.eclipse.jst.j2ee.internal.earcreation.EARNatureRuntime;
import org.eclipse.wst.server.core.IModule;
import org.eclipse.wst.server.core.IModuleArtifact;
import org.eclipse.wst.server.core.ServerUtil;
import org.eclipse.wst.server.core.util.NullModuleArtifact;


import org.eclipse.jem.util.emf.workbench.ProjectUtilities;

/**
 * Creates the Object adapter for ear projects.
 */
public class EnterpriseApplicationDeployableAdapterUtil {

    /**
     * Constructor for EnterpriseApplicationDeployableObjectAdapter.
     */
    public EnterpriseApplicationDeployableAdapterUtil() {
        super();
    }// EnterpriseApplicationDeployableObjectAdapter

    /**
     * Gets the object for a type of object.
     * 
     * @param Object
     *            obj - Object to adapt.
     */
    public static IModuleArtifact getModuleObject(Object obj) {
        if (obj instanceof Application)
            return getModuleObject((Application) obj);
        if (obj instanceof IProject)
            return getModuleObject((IProject) obj);
        if (obj instanceof IFile)
            return getModuleObject((IFile) obj);
        return null;
    }// getDeployableObject

    /**
     * Gets the deployable object for ear instance.
     * 
     * @param Application
     *            application - EAR instance.
     */
    protected static IModuleArtifact getModuleObject(Application application) {
        IModule dep = getModule(application);
        return createModuleObject(dep);
    }// getDeployableObject

    /**
     * Gets the deployable object for project instances.
     * 
     * @param IProject
     *            project - Project instance.
     * @return IModuleObject
     */
    protected static IModuleArtifact getModuleObject(IProject project) {
        org.eclipse.wst.server.core.IModule dep = getModule(project);
        return createModuleObject(dep);
    }// getModuleObject

    /**
     * Gets the deployable object for file instances.
     * 
     * @param IFile
     *            file - File instance.
     * @return IModuleObject
     */
    protected static IModuleArtifact getModuleObject(IFile file) {
        if (file.getProjectRelativePath().toString().endsWith(ArchiveConstants.APPLICATION_DD_URI)) {
            return createModuleObject(getModule(file.getProject()));
        }// if
        return null;
    }// getModuleObject

    /**
     * Gets the deployable object.
     * 
     * @param EObject
     *            refObject - The current refObject.
     * @return IModule
     */
    protected static org.eclipse.wst.server.core.IModule getModule(EObject refObject) {
        IProject proj = ProjectUtilities.getProject(refObject);
        return getModule(proj);
    }// getModule

    /**
     * Get the deployable object.
     * 
     * @param EObject
     *            refObject - The current refObject.
     * @return IModule
     */
/*    protected static IModule getModule(IProject project) {
        EARNatureRuntime nature = getNature(project);
        if (nature != null) {
            return nature.getModule();
        }// if
        return null;
    }// getModule
*/
    /**
     * Gets the ear nature.
     * 
     * @param IProject
     *            project - The current project.
     * @return EARNatureRuntime
     */
    protected static EARNatureRuntime getNature(IProject project) {
        if (project != null) {
            return EARNatureRuntime.getRuntime(project);
        }// if
        return null;
    }// getNature
    
    
    protected static IModule getModule( IProject project) {
    	EARNatureRuntime nature = getNature(project);
    	if (nature == null)
    		return null;
		IModule deployable = nature.getModule();
		if (deployable != null)
			return deployable;
		Iterator iterator = Arrays.asList(ServerUtil.getModules("j2ee.ear")).iterator(); //$NON-NLS-1$
		while (iterator.hasNext()) {
			Object next = iterator.next();
			if (next instanceof IModule) {
				deployable = (IModule) next;
				if (deployable.getProject().equals(project))
					return deployable;
			}
		}
		return null;
	}

    /**
     * Creates the deployable object.
     * 
     * @param IModuleObject
     *            deployable - The current module object.
     */
    protected static IModuleArtifact createModuleObject(IModule module) {

        if (module != null) {
            return new NullModuleArtifact(module);
        }

        return null;
    }// createDeployableObject

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.wst.server.core.IModuleArtifactAdapter#getId()
     */
    public String getId() {
        // TODO Auto-generated method stub
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.wst.server.core.IModuleArtifactAdapter#getObjectClassName()
     */
    public String getObjectClassName() {
        // TODO Auto-generated method stub
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.wst.server.core.IModuleArtifactAdapter#isPluginActivated()
     */
    public boolean isPluginActivated() {
        // TODO Auto-generated method stub
        return false;
    }

}// EnterpriseApplicationDeployableObjectAdapter