/*******************************************************************************
 * Copyright (c) 2003, 2005 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.validation;


import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.URIConverter;
import org.eclipse.jem.util.emf.workbench.WorkbenchURIConverter;
import org.eclipse.jem.util.logger.proxy.Logger;
import org.eclipse.jem.workbench.utility.JemProjectUtilities;
import org.eclipse.jst.j2ee.application.EjbModule;
import org.eclipse.jst.j2ee.application.Module;
import org.eclipse.jst.j2ee.application.WebModule;
import org.eclipse.jst.j2ee.common.EjbRef;
import org.eclipse.jst.j2ee.common.MessageDestinationRef;
import org.eclipse.jst.j2ee.common.ResourceEnvRef;
import org.eclipse.jst.j2ee.common.ResourceRef;
import org.eclipse.jst.j2ee.common.SecurityRoleRef;
import org.eclipse.jst.j2ee.commonarchivecore.internal.Archive;
import org.eclipse.jst.j2ee.commonarchivecore.internal.File;
import org.eclipse.jst.j2ee.commonarchivecore.internal.ModuleFile;
import org.eclipse.jst.j2ee.commonarchivecore.internal.ValidateXmlCommand;
import org.eclipse.jst.j2ee.commonarchivecore.internal.exception.ManifestException;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveConstants;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveManifest;
import org.eclipse.jst.j2ee.commonarchivecore.internal.util.ArchiveUtil;
import org.eclipse.jst.j2ee.componentcore.util.EARArtifactEdit;
import org.eclipse.jst.j2ee.internal.J2EEConstants;
import org.eclipse.jst.j2ee.internal.J2EEVersionConstants;
import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities;
import org.eclipse.jst.j2ee.model.internal.validation.EARValidationMessageResourceHandler;
import org.eclipse.jst.j2ee.model.internal.validation.EarValidator;
import org.eclipse.jst.j2ee.webservice.wsclient.ServiceRef;
import org.eclipse.osgi.util.NLS;
import org.eclipse.wst.common.componentcore.ComponentCore;
import org.eclipse.wst.common.componentcore.internal.impl.ModuleURIUtil;
import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
import org.eclipse.wst.common.componentcore.resources.IVirtualFile;
import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
import org.eclipse.wst.common.internal.emfworkbench.WorkbenchResourceHelper;
import org.eclipse.wst.validation.internal.core.ValidationException;
import org.eclipse.wst.validation.internal.operations.IWorkbenchContext;
import org.eclipse.wst.validation.internal.operations.LocalizedMessage;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
import org.eclipse.wst.validation.internal.provisional.core.IValidationContext;
import org.eclipse.wst.validation.internal.provisional.core.IValidatorJob;


/**
 * Insert the type's description here. Creation date: (9/10/2001 2:11:02 PM)
 * 
 * @author: Administrator
 */
public class UIEarValidator extends EarValidator {
	public static final String VALIDATOR_ID = "org.eclipse.jst.j2ee.internal.validation.UIEarValidator"; //$NON-NLS-1$
	public static final String MANIFEST_GROUP_NAME = "WSAD.EAR.MANIFEST"; //$NON-NLS-1$
	public static final String DOCTYPE_1_2 = "1.2"; //$NON-NLS-1$
	public static final String DOCTYPE_1_3 = "1.3"; //$NON-NLS-1$
	
	protected UIEarHelper earHelper;
//	private EARArtifactEdit earEdit = null;
	private IProject project = null;

	/**
	 * UIEarValidator constructor comment.
	 */
	public UIEarValidator() {
		super();
	}

	public Command createValidateXMLCommand() {

		ValidateXmlCommand cmd = (ValidateXmlCommand) super.createValidateXMLCommand();
		cmd.setValidateNested(false);
		return cmd;
	}

	protected String getResourceName() {
		return ((EarHelper) _helper).getProject().getName();
	}

	protected void duplicateProjectMapError(String earProjectName, String moduleUri, String projectName) {

		String[] params = new String[3];
		params[0] = projectName;
		params[1] = earProjectName;
		params[2] = moduleUri;
		String msg = NLS.bind(EARValidationMessageResourceHandler.DUPLICATE_MODULE_FOR_PROJECT_NAME_ERROR_, params);
	
		addLocalizedError(msg, appDD);
	}

	/**
	 *  
	 */
	protected void cleanUpSubTaskMessages(EObject ref) {
		String groupName = EJB_REF_GROUP_NAME;
		if (ref instanceof EjbRef)
			ref = (EjbRef) ref;
		else if (ref instanceof ResourceRef) {
			ref = (ResourceRef) ref;
			groupName = RES_REF_GROUP_NAME;
		} else if (ref instanceof ServiceRef) {
			ref = (ServiceRef) ref;
			groupName = SERVICE_REF_GROUP_NAME;
		} else if (ref instanceof ResourceEnvRef) {
			ref = (ResourceEnvRef) ref;
			groupName = RES_ENV_REF_GROUP_NAME;
		} else if (ref instanceof SecurityRoleRef) {
			ref = (SecurityRoleRef) ref;
			groupName = SEC_ROLE_REF_GROUP_NAME;
		} else if (ref instanceof MessageDestinationRef) {
			ref = (MessageDestinationRef) ref;
			groupName = MESSAGE_REF_GROUP_NAME;
		}
		Resource res = ref.eResource();
		if (res != null) {
			IFile file = WorkbenchResourceHelper.getFile(res);
			if (file != null)
				_reporter.removeMessageSubset(this, file, groupName);
		}
	}

	protected void cleanUpAllRefSubTaskMessages(Resource res) {
		if (res != null) {
			IFile file = WorkbenchResourceHelper.getFile(res);
			if (file != null)
				_reporter.removeMessageSubset(this, file, EJB_REF_GROUP_NAME);
			_reporter.removeMessageSubset(this, file, RES_REF_GROUP_NAME);
			_reporter.removeMessageSubset(this, file, SERVICE_REF_GROUP_NAME);
			_reporter.removeMessageSubset(this, file, SEC_ROLE_REF_GROUP_NAME);
			_reporter.removeMessageSubset(this, file, MESSAGE_REF_GROUP_NAME);
			_reporter.removeMessageSubset(this, file, RES_ENV_REF_GROUP_NAME);
		}
	}

	/**
	 * Insert the method's description here. Creation date: (9/10/2001 2:56:32 PM)
	 * 
	 * @return org.eclipse.wst.validation.internal.core.core.ear.workbenchimpl.UIEarHelper
	 */
	public org.eclipse.jst.j2ee.internal.validation.UIEarHelper getEarHelper() {
		return earHelper;
	}

	protected void invalidClassPathEntryWarning(String entry, Archive anArchive) {
		String[] params = new String[2];
		params[0] = anArchive.getURI();
		params[1] = entry;
		String msg = NLS.bind(EARValidationMessageResourceHandler.INVALID_MANIFEST_CLASSPATH_ONE_WARN_, params);
		addLocalizedWarning(msg, getManifestFile(anArchive), MANIFEST_GROUP_NAME);
	}

	protected void invalidClassPathEntryWarning(String entry, String resolvedEntry, Archive anArchive) {
		String[] params = new String[3];
		params[0] = anArchive.getURI();
		params[1] = entry;
		params[2] = resolvedEntry;
		String msg = NLS.bind(EARValidationMessageResourceHandler.INVALID_MANIFEST_CLASSPATH_TWO_WARN_, params);		
		addLocalizedWarning(msg, getManifestFile(anArchive), MANIFEST_GROUP_NAME);
	}

	protected void invalidDepedencyWarning(String entry, Archive anArchive, ModuleFile m) {
		String[] params = new String[3];
		params[0] = m.getURI();
		params[1] = entry;
		params[2] = anArchive.getURI();
		String msg = NLS.bind(EARValidationMessageResourceHandler.INVALID_MANIFEST_CLASSPATH_DEPENDENCY_WARN_, params);
		
		addLocalizedWarning(msg, getManifestFile(anArchive), MANIFEST_GROUP_NAME);
	}

	/**
	 * Insert the method's description here. Creation date: (9/10/2001 2:56:32 PM)
	 * 
	 * @param newEarHelper
	 *            org.eclipse.wst.validation.internal.core.core.ear.workbenchimpl.UIEarHelper
	 */
	public void setEarHelper(org.eclipse.jst.j2ee.internal.validation.UIEarHelper newEarHelper) {
		earHelper = newEarHelper;
	}

	public IStatus validateInJob(IValidationContext inHelper, IReporter inReporter) throws org.eclipse.wst.validation.internal.core.ValidationException {

		IProject proj = ((IWorkbenchContext) inHelper).getProject();
		IVirtualComponent earModule = ComponentCore.createComponent(proj);
            if(J2EEProjectUtilities.isEARProject(proj)){
				IVirtualFile ddFile = earModule.getRootFolder().getFile(J2EEConstants.APPLICATION_DD_URI);
				if( ddFile.exists()) {	
					IStatus status = IValidatorJob.OK_STATUS;
					status = super.validateInJob(inHelper, inReporter);
					validateModuleMaps(earModule);
					validateManifests();
	//				validateUtilJarMaps(earEdit,earModule);
	//				validateUriAlreadyExistsInEar(earEdit,earModule);
	//				validateDocType(earEdit,earModule);					
				}
            }
		return IValidatorJob.OK_STATUS;
	}	

	public ISchedulingRule getSchedulingRule(IValidationContext helper) {
		IProject project = ((IWorkbenchContext) helper).getProject();
		IVirtualComponent comp = ComponentCore.createComponent( project );
		IFile appDeploymentDescriptor = null;
		if( comp != null ){
			IVirtualFile vf = comp.getRootFolder().getFile(new Path(J2EEConstants.APPLICATION_DD_URI));
			if( vf!= null ){
				appDeploymentDescriptor = vf.getUnderlyingFile();
			}
		}
		return appDeploymentDescriptor;
	}

	public void validateManifests() throws ValidationException {
		if (earFile == null)
			return;
		List archives = earFile.getArchiveFiles();
		for (int i = 0; i < archives.size(); i++) {

			Archive anArchive = (Archive) archives.get(i);

			IFile target = getManifestFile(anArchive);
			if (target != null)
				_reporter.removeMessageSubset(this, target, MANIFEST_GROUP_NAME);
			validateManifestCase(anArchive);
			validateManifestLines(anArchive);
			validateManifestClasspath(anArchive);
		}
	}

	public void validateManifestCase(Archive anArchive) {
		String mfuri = J2EEConstants.MANIFEST_URI;

		//Indicates a manifest file with the valid name exists,
		//nothing left to do
		if (anArchive.containsFile(mfuri))
			return;

		//Otherwise iterate the list of files
		//Ensure the archive is read-only first
		anArchive.getOptions().setIsReadOnly(true);
		List files = anArchive.getFiles();
		String uri = null;
		for (int i = 0; i < files.size(); i++) {
			File aFile = (File) files.get(i);
			uri = aFile.getURI();
			if (mfuri.equalsIgnoreCase(uri) && !mfuri.equals(uri)) {
				String[] params = {uri, anArchive.getURI()};
				IResource target = earHelper.getProject().getFile(J2EEConstants.MANIFEST_URI);
				String msg = NLS.bind(EARValidationMessageResourceHandler.INVALID_CASE_FOR_MANIFEST_ERROR_, params);
				addLocalizedError(msg, target);				
			}
		}

	}


	public void validateManifestClasspath(Archive anArchive) throws ValidationException {
		ArchiveManifest manifest = null;
		try{
			manifest = anArchive.getManifest();
		}catch( ManifestException mf){
			//mf.printStackTrace();
			mf.getMessage();
			String[] args = new String[]{anArchive.getURI()};
			String tmp = NLS.bind(EARValidationMessageResourceHandler.ERROR_READING_MANIFEST_ERROR_, args);
			
			addLocalizedError(tmp, args);
		}
		
		if(manifest == null)
			return;

		String[] cp = manifest.getClassPathTokenized();
		
		for (int i = 0; i < cp.length; i++) {
			String uri = ArchiveUtil.deriveEARRelativeURI(cp[i], anArchive);
			if (uri == null) {
				invalidClassPathEntryWarning(cp[i], anArchive);
				continue;
			}
			File f = null;
			//IFile rf = null;
			try {
//					if (uri.endsWith(J2EEImportConstants.IMPORTED_JAR_SUFFIX)) {
						//TODO Needs work here to initialize rf as rf is an IFile and there is no way to get an IFile currently
//					IVirtualResource resource = component.getRootFolder().findMember(new Path(uri));
//						if (resource == null || !resource.exists()) {
//							invalidClassPathEntryWarning(cp[i], uri, anArchive);
//						}
//					}
//				 else
					f = earFile.getFile(uri);
			} catch (java.io.FileNotFoundException ex) {
				invalidClassPathEntryWarning(cp[i], earFile.getURI(), anArchive);
				continue;
			}
			if (f != null && f.isArchive() && anArchive.isModuleFile()) {
				Archive archive = (Archive) f;
				ModuleFile m = (ModuleFile) anArchive;
				if (!ArchiveUtil.isValidDependency(archive, m))
					invalidDepedencyWarning(cp[i], archive, m);
			}
		}
	}


	protected void validateManifestLines(Archive anArchive) throws ValidationException {
		if (anArchive == null)
			return;
		InputStream is = null;
		try {
			is = anArchive.getInputStream(J2EEConstants.MANIFEST_URI);
			ManifestLineValidator lineVal = new ManifestLineValidator(is);
			lineVal.validate();
			addErrorsIfNecessary(anArchive, lineVal);
		} catch (FileNotFoundException ex) {
			return;
		} catch (IOException ex) {
			handleManifestException(ex, anArchive);
		} finally {
			if (is != null)
				try {
					is.close();
				} catch (IOException ex) {
					handleManifestException(ex, anArchive);
				}
		}
	}

	protected void addErrorsIfNecessary(Archive anArchive, ManifestLineValidator mfVal) {
		if (!mfVal.hasErrors())
			return;
		IFile target = getManifestFile(anArchive);
		if (!mfVal.endsWithLineBreak())
			addFileEndError(anArchive, mfVal, target);
		int[] lines = mfVal.getLineNumbersExceedingLimit();
		for (int i = 0; i < lines.length; i++) {
			addLineLengthError(anArchive, target, lines[i]);
		}
	}

	protected void addLineLengthError(Archive anArchive, IFile target, int lineNo) {
		String[] args = new String[2];
		args[0] = Integer.toString(lineNo);
		args[1] = anArchive.getURI();
		
		String tmp = NLS.bind(EARValidationMessageResourceHandler.MANIFEST_LINE_EXCEEDS_LENGTH_ERROR_, args);
		
		if( lineNo >= 0 ){
			addLocalizedError(tmp, target);
		}else{
			addLocalizedError(tmp, target, lineNo);
		}

	}

	protected void addFileEndError(Archive anArchive, ManifestLineValidator mfVal, IFile target) {
		String[] args = new String[]{anArchive.getURI()};
		
		String tmp = NLS.bind(EARValidationMessageResourceHandler.MANIFEST_LINE_END_ERROR_, args);
		
		if (target != null)
			addLocalizedError(tmp, getManifestFile(anArchive), mfVal.getLineCount());
		else
			addLocalizedError(tmp, null);
	}

	protected void handleManifestException(IOException ex, Archive anArchive) throws ValidationException {
		Logger.getLogger().logError(ex);
		String tmp = NLS.bind(EARValidationMessageResourceHandler.ERROR_READING_MANIFEST_ERROR_, new String[]{anArchive.getURI()});		
		IMessage message = new LocalizedMessage(IMessage.HIGH_SEVERITY, tmp);
		throw new ValidationException(message, ex);
	}

	/**
	 * Validates utiljar maps
	 */
//	public void validateUtilJarMaps(EARArtifactEdit edit, IVirtualComponent workbenchModule) {
//		List utilJarModules = edit.getUtilityModuleReferences();
//		if (!utilJarModules.isEmpty() || !utilJarModules.isEmpty()) {
//			for (int i = 0; i < utilJarModules.size(); i++) {
//				IVirtualComponent aUtilJar = ((IVirtualReference) utilJarModules.get(i)).getReferencedComponent();
//				if (aUtilJar != null) {
//					IProject project = J2EEPlugin.getWorkspace().getRoot().getProject(aUtilJar.getProject().getName());
//					if (project != null) {
//						if (!project.exists()) {
//							String[] params = new String[]{project.getName(), aUtilJar.getRuntimePath().toString(), earHelper.getProject().getName()};
//							addWarning(getBaseName(), PROJECT_DOES_NOT_EXIST_WARN_, params);
//						} else {
//							//validateModuleProjectForValidServerTarget(project);
//							if (!project.isOpen()) {
//								String[] params = new String[]{project.getName()};
//								addWarning(getBaseName(), PROJECT_IS_CLOSED_WARN_, params);
//							}
//						}
//					}
//				}
//			}
//		} 
//		validateDuplicateUtilJars(edit,workbenchModule);
//		validateUtilJarNameCollision(edit,workbenchModule);
//		validateUtilJarContainsNoSpaces(edit,workbenchModule);
//		
//	}// validateUtilJarMaps

	/**
	 * Checks if the util jar contains spaces or not.
	 * 
	 * @param EAREditModel
	 *            earEditModel - The ear editmodel.
	 */
	protected void validateUtilJarContainsNoSpaces(EARArtifactEdit edit, IVirtualComponent module) {
		IVirtualReference[] utilJars = edit.getUtilityModuleReferences();

		if (utilJars == null)
			return;

		for (int i = 0; i < utilJars.length; i++) {
			IVirtualReference utilModule = utilJars[i];
			if (utilModule != null) {
				String uri = ModuleURIUtil.fullyQualifyURI(project).toString();
				if (uri != null && uri.indexOf(" ") != -1) { //$NON-NLS-1$
					String[] params = new String[1];
					params[0] = uri;
					String tmp = NLS.bind(EARValidationMessageResourceHandler.URI_CONTAINS_SPACES_ERROR_, params);
					addLocalizedError(tmp, appDD);
				}// if
			}// if
		}// for

	}// validateUtilJarContainsNoSpaces

	/**
	 * Validates if the a util jar has the same name as another module.
	 * 
	 * @param EAREditModel
	 *            earEditModel - The ear editmodel.
	 */
//	protected void validateUtilJarNameCollision(EARArtifactEdit edit, IVirtualComponent module) {
//		List utilJars = edit.getUtilityModuleReferences();
//		if (utilJars == null)
//			return;
//		for (int i = 0; i < utilJars.size(); i++) {
//			UtilityJARMapping utilModule = (UtilityJARMapping) utilJars.get(i);
//
//			if (utilModule != null) {
//				if (edit.uriExists(utilModule.getUri())) {
//
//					String[] params = new String[]{utilModule.getUri(), module.getName()};
//					addError(getBaseName(), MESSAGE_UTIL_URI_NAME_COLLISION_ERROR_, params);
//
//				} else if (utilModule.getProjectName() != null || utilModule.getProjectName().length() != 0) {
//					if (edit.uriExists(utilModule.getUri())) {
//						String[] params = new String[]{utilModule.getUri(), utilModule.getProjectName()};
//						addError(getBaseName(), MESSAGE_UTIL_PROJECT_NAME_COLLISION_ERROR_, params);
//					}
//				}
//			}
//		}
//	} 
		

	/**
	 * validate is there are duplicate util jars.
	 * 
	 * @param EAREditModel
	 *            earEditModel - The ear editmodel
	 */
	protected void validateDuplicateUtilJars(EARArtifactEdit edit, IVirtualComponent module) {
		IVirtualReference[] utilJars = edit.getUtilityModuleReferences();
		Set visitedUtilUri = new HashSet();
		if (utilJars == null)
			return;
		for (int i = 0; i < utilJars.length; i++) {
			IVirtualReference utilModule = utilJars[i];
			if (utilModule != null) {
				String uri = ModuleURIUtil.fullyQualifyURI(project).toString();
				if (visitedUtilUri.contains(uri)) {
					String compName = module.getName();
					duplicateUtilError(module.getName(),uri, compName);
				} else
					visitedUtilUri.add(uri);
			} // if
		} // for
	} // validateModuleMapsDuplicateUtil

	/**
	 * Creates an error for duplicate util jars.
	 * 
	 * @param String
	 *            earProjectName - The ears project name.
	 * @param String
	 *            moduleUri - The modules uri.
	 * @param String
	 *            projectName - The project name.
	 */
	protected void duplicateUtilError(String earProjectName, String moduleUri, String projectName) {
		String[] params = new String[3];
		params[0] = projectName;
		params[1] = earProjectName;
		params[2] = moduleUri;
		String tmp = NLS.bind(EARValidationMessageResourceHandler.DUPLICATE_UTILJAR_FOR_PROJECT_NAME_ERROR_, params);
		
		addLocalizedError(tmp, null);
	}// duplicateUtilError

	public void validateModuleMaps(IVirtualComponent component) {
		IVirtualFile ddFile = component.getRootFolder().getFile(J2EEConstants.APPLICATION_DD_URI);
		if( ddFile.exists()){
			EList modules = appDD.getModules();
			if (!modules.isEmpty()) {
				EARArtifactEdit edit = null;
				try{
					edit = EARArtifactEdit.getEARArtifactEditForRead( component.getProject() );
					
					for (int i = 0; i < modules.size(); i++) {
						Module module = (Module) modules.get(i);
						String uri = module.getUri();
						IVirtualComponent referencedComp = edit.getModuleByManifestURI( uri );
						if( referencedComp == null ){
							String[] params = new String[]{uri, component.getProject().getName()};
							String tmp = NLS.bind(EARValidationMessageResourceHandler.MISSING_PROJECT_FORMODULE_WARN_, params);
							
							addLocalizedWarning(tmp, null);							
						}
						validateModuleURIExtension(module);
					}
				}finally{
					if( edit != null )
						edit.dispose();					
				}
			}
		}
	}


	protected void validateModuleURIExtension(Module module) {
		String newUri = module.getUri();
		if (newUri != null && newUri.length() > 0) {
			if (module instanceof EjbModule && !newUri.endsWith(".jar")) { //$NON-NLS-1$
				String[] params = new String[1];
				params[0] = module.getUri();
				IResource target = earHelper.getProject().getFile(ArchiveConstants.APPLICATION_DD_URI);
				String tmp = NLS.bind(EARValidationMessageResourceHandler.INVALID_URI_FOR_MODULE_ERROR_, params);
				addLocalizedWarning(tmp, target);
			} else if (module instanceof WebModule && !newUri.endsWith(".war")) { //$NON-NLS-1$
				String[] params = new String[1];
				params[0] = module.getUri();
				IResource target = earHelper.getProject().getFile(ArchiveConstants.APPLICATION_DD_URI);
				String tmp = NLS.bind(EARValidationMessageResourceHandler.INVALID_URI_FOR_MODULE_ERROR_, params);				
				addLocalizedWarning(tmp, target);
			}
		}
	}
	

	public void cleanup(IReporter reporter) {
		super.cleanup(reporter);
		cleanup();
	}


	/*
	 * @see J2EEValidator#cleanup()
	 */
	public void cleanup() {
		if (earHelper != null)
			earHelper.closeEARFile();
	}

	protected IFile getManifestFile(Archive anArchive) {
		URIConverter conv = anArchive.getResourceSet().getURIConverter();
		if (conv instanceof WorkbenchURIConverter) {
			WorkbenchURIConverter wbConv = (WorkbenchURIConverter) conv;
			IContainer input = wbConv.getInputContainer();
			if (input == null)
				return null;
			IProject p = input.getProject();
			if (p == null || JemProjectUtilities.isBinaryProject(p))
				return null;
			IFile result = J2EEProjectUtilities.getManifestFile(p);
			if (result != null && result.exists())
				return result;
		}
		return null;
	}

	/**
	 * Checks if the nature is consistent with doc type.
	 */
	protected void validateDocType(EARArtifactEdit edit,IVirtualComponent module) {
		if (edit == null)
			return;
		if (edit.getJ2EEVersion() >= J2EEVersionConstants.J2EE_1_3_ID && appDD.getVersionID() < J2EEVersionConstants.J2EE_1_3_ID) {
			String[] params = new String[3];
			params[0] = DOCTYPE_1_2;
			params[1] = getResourceName();
			params[2] = DOCTYPE_1_3;
			String tmp = NLS.bind(EARValidationMessageResourceHandler.EAR_INVALID_DOC_TYPE_ERROR_, params);			
			addLocalizedError(tmp, appDD);
		} else if (edit.getJ2EEVersion() < J2EEVersionConstants.J2EE_1_3_ID && appDD.getVersionID() >= J2EEVersionConstants.J2EE_1_3_ID) {
			String[] params = new String[3];
			params[0] = DOCTYPE_1_3;
			params[1] = getResourceName();
			params[2] = DOCTYPE_1_2;
			String tmp = NLS.bind(EARValidationMessageResourceHandler.EAR_INVALID_DOC_TYPE_ERROR_, params);			
			addLocalizedError(tmp, appDD);
		}
	}

	/**
	 * Validates that conflicting jar does not exist in the ear project.
	 */
	public void validateUriAlreadyExistsInEar(EARArtifactEdit edit,IVirtualComponent component) {
		IVirtualReference[] modules = edit.getJ2EEModuleReferences();
		if (modules == null)
			return;
		for (int i = 0; i < modules.length; i++) {
			IVirtualReference reference = modules[i];
			IVirtualComponent module = reference.getReferencedComponent();
			if (module != null && module.getRootFolder().getRuntimePath() != null) {
				IProject currentEARProject = earHelper.getProject();
				try {
					IFile exFile = currentEARProject.getFile(module.getRootFolder().getRuntimePath());
					if (exFile != null && exFile.exists()) {
						String[] params = new String[2];
						params[0] = module.getRootFolder().getRuntimePath().toString();
						params[1] = currentEARProject.getName();
						String tmp = NLS.bind(EARValidationMessageResourceHandler.URI_ALREADY_EXISTS_IN_EAR_WARN_, params);						
						addLocalizedWarning(tmp, appDD);
					}
				} catch (IllegalArgumentException iae) {
					Logger.getLogger().logError(iae);
				}
			}
		}
	}

	protected void removeAllMessages(EObject eObject, String groupName) {
		Resource res = eObject.eResource();
		if(res != null) {
			IFile file = WorkbenchResourceHelper.getFile(res);
			if(file != null)
				_reporter.removeMessageSubset(this,file,groupName);
		}
	}
	
}// UIEarValidator