/*******************************************************************************
 * <copyright>
 *
 * Copyright (c) 2005, 2010 SAP AG.
 * 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:
 *    Stefan Dimov - initial API, implementation and documentation
 *
 * </copyright>
 *
 *******************************************************************************/
package org.eclipse.jpt.jpadiagrameditor.ui.internal.propertypage;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.JPADiagramEditorPlugin;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.i18n.JPAEditorMessages;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.preferences.JPAEditorPreferenceInitializer;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.preferences.JPAEditorPreferencesPage;
import org.eclipse.jpt.jpadiagrameditor.ui.internal.util.JPAEditorUtil;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.dialogs.PropertyPage;

public class JPADiagramPropertyPage extends PropertyPage {
	
	public static final String PROJECT_SETTINGS_PATH = "/.settings/org.eclipse.jpt.jpadiagrameditor.ui";	//$NON-NLS-1$;
	protected IProject project = null;
	protected boolean isJPA10Project = false;				//$NON-NLS-1$;
	
	private Properties editorProps;
	
	private Text txtDefaultFolderField;
	private Text txtDefaultEntityPackageField;
	private Text txtDefaultTableNamePrefix;
	private Button checkDirectEditAffectsClass;
	private Group groupAccessType;
	private Group groupCollectionType;
	private Button btnFieldBasedAccess;
	private Button btnPropertyBasedAccess;
	private Button btnCollectionType;
	private Button btnListType;
	private Button btnSetType;
	private Button checkOneToManyOldStyle;

	private boolean propsModified = false;

	static private final String QUALIFIER 								= "org.eclipse.jpt.jpadiagrameditor.ui";						//$NON-NLS-1$
	static public final QualifiedName PROP_DEFAULT_DIAGRAM_FOLDER		= new QualifiedName(QUALIFIER, "diagramFolder");			//$NON-NLS-1$;	
	static public final QualifiedName PROP_DEFAULT_PACKAGE 				= new QualifiedName(QUALIFIER, "defaultPackage");			//$NON-NLS-1$
	static public final QualifiedName PROP_DEFAULT_TABLE_NAME_PREFIX 	= new QualifiedName(QUALIFIER, "defaultTableNamePrefix");	//$NON-NLS-1$;
	static public final QualifiedName PROP_DIRECT_EDIT_AFFECTS_CLASS 	= new QualifiedName(QUALIFIER, "directEditAffectsClass");	//$NON-NLS-1$;
	static public final QualifiedName PROP_ACCESS_TYPE 					= new QualifiedName(QUALIFIER, "accessType");				//$NON-NLS-1$;
	static public final QualifiedName PROP_COLLECTION_TYPE 				= new QualifiedName(QUALIFIER, "collectionType");			//$NON-NLS-1$;
	static public final QualifiedName PROP_ONE_TO_MANY_OLD_STYLE		= new QualifiedName(QUALIFIER, "oneToManyOldStyle");		//$NON-NLS-1$;
	

    public static final String COLLECTION_TYPE = "java.util.Collection"; //$NON-NLS-1$
    public static final String LIST_TYPE = "java.util.List"; //$NON-NLS-1$
    public static final String SET_TYPE = "java.util.Set"; //$NON-NLS-1$

	
	private IPreferenceStore store = JPADiagramEditorPlugin.getDefault().getPreferenceStore();

	@Override
	protected Control createContents(Composite parent) {
		final Composite composite = createCompositeContainer(parent);
		project = (IProject)getElement().getAdapter(IProject.class);
		isJPA10Project = JPAEditorUtil.checkJPAFacetVersion(project, "1.0");				//$NON-NLS-1$;		
		loadProperties();
		createDefaultFolderControl(composite);
		createDefaultPackageControl(composite);
		createDefaultTableNamePrefixControl(composite);
		createDirectEditAffectsClassControl(composite);
		createAccessTypeControl(composite);
		createDefaultCollectionTypeControl(composite);
		if (!isJPA10Project)
			createOneToManyOldStyleControl(composite);
		Dialog.applyDialogFont(composite);
		validatePage();
		return composite;		
	}
	
	private Composite createCompositeContainer(Composite parent) {	
		final Composite composite= new Composite(parent, SWT.NONE);
		composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
		GridLayout gl = new GridLayout();
		gl.numColumns = 2;
		composite.setLayout(gl);
		return composite;
	}
		
	private void createDefaultFolderControl(Composite composite) {
		Label lblDefaultFolder = new Label(composite, SWT.FILL); 
		lblDefaultFolder.setText(JPAEditorMessages.JPAEditorPreferencesPage_defaultFolderControlLabel);
		lblDefaultFolder.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_defaultFolderControlTooltip);
		GridData gd = new GridData();
		lblDefaultFolder.setLayoutData(gd);	
		txtDefaultFolderField = new Text(composite, SWT.FLAT | SWT.BORDER | SWT.FILL);
		lblDefaultFolder.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_defaultFolderControlTooltip);
		gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.grabExcessHorizontalSpace = true;
		txtDefaultFolderField.setLayoutData(gd);
		
	    String defaultFolder = editorProps.getProperty(PROP_DEFAULT_DIAGRAM_FOLDER.getLocalName());
	    txtDefaultFolderField.setText(defaultFolder);
	    txtDefaultFolderField.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_defaultFolderControlTooltip);
	    txtDefaultFolderField.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				validatePage();
				propsModified = true;
			}			
		});
	}
	
		
	private void createDefaultPackageControl(Composite composite) {
		Label lblDefaultPackage = new Label(composite, SWT.FILL); 
		lblDefaultPackage.setText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultPackageToUse);
		lblDefaultPackage.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultPackageMsg);
		GridData gd = new GridData();
		lblDefaultPackage.setLayoutData(gd);	
		txtDefaultEntityPackageField = new Text(composite, SWT.FLAT | SWT.BORDER | SWT.FILL);
		lblDefaultPackage.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultPackageMsg);
		gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.grabExcessHorizontalSpace = true;
		txtDefaultEntityPackageField.setLayoutData(gd);
		
	    String defaultPackageName = editorProps.getProperty(PROP_DEFAULT_PACKAGE.getLocalName());
		txtDefaultEntityPackageField.setText(defaultPackageName);
		txtDefaultEntityPackageField.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultPackageMsg);
		txtDefaultEntityPackageField.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				validatePage();
				propsModified = true;
			}			
		});
	}
	
	private void createDefaultTableNamePrefixControl(Composite composite) {
		Label lblDefaultTableNamePrfix = new Label(composite, SWT.FILL); 
		lblDefaultTableNamePrfix.setText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultTableNameLabel);
		lblDefaultTableNamePrfix.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultTableNamePrefixMsg);
		GridData gd = new GridData();
		lblDefaultTableNamePrfix.setLayoutData(gd);	
		txtDefaultTableNamePrefix = new Text(composite, SWT.FLAT | SWT.BORDER);
		lblDefaultTableNamePrfix.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultTableNamePrefixMsg);
		gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.grabExcessHorizontalSpace = true;
		txtDefaultTableNamePrefix.setLayoutData(gd);
		
	    String defaultTableNamePrefix =  editorProps.getProperty(PROP_DEFAULT_TABLE_NAME_PREFIX.getLocalName());
		txtDefaultTableNamePrefix.setText(defaultTableNamePrefix);	
		txtDefaultTableNamePrefix.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultTableNamePrefixMsg);
		txtDefaultTableNamePrefix.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				validatePage();
				propsModified = true;
			}			
		});		
	}
	
	private void createDirectEditAffectsClassControl(Composite composite) {
		checkDirectEditAffectsClass = new Button(composite, SWT.FLAT | SWT.CHECK);
		checkDirectEditAffectsClass.setText(JPAEditorMessages.JPAEditorPreferencesPage_directEditAffectsClass);
		checkDirectEditAffectsClass.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_directEditAffectsClassTooltip);
		checkDirectEditAffectsClass.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 2, 1));
		
		boolean defaultDirectEditAffectsClass = Boolean.parseBoolean(editorProps.getProperty(PROP_DIRECT_EDIT_AFFECTS_CLASS.getLocalName()));
		checkDirectEditAffectsClass.setSelection(defaultDirectEditAffectsClass);
		checkDirectEditAffectsClass.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});			
	}
	
	private void createOneToManyOldStyleControl(Composite composite) {
		checkOneToManyOldStyle = new Button(composite, SWT.FLAT | SWT.CHECK);
		checkOneToManyOldStyle.setText(JPAEditorMessages.JPAEditorPropertyPage_oneToManyOldStyle);
		checkOneToManyOldStyle.setToolTipText(JPAEditorMessages.JPAEditorPropertyPage_oneToManyOldStyleTooltip);
		checkOneToManyOldStyle.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 2, 1));
		
		boolean defaultDirectEditAffectsClass = Boolean.parseBoolean(editorProps.getProperty(PROP_ONE_TO_MANY_OLD_STYLE.getLocalName()));
		checkOneToManyOldStyle.setSelection(defaultDirectEditAffectsClass);
		checkOneToManyOldStyle.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});			
	}
	
	
	
	private void createDefaultCollectionTypeControl(Composite composite) {
		groupCollectionType = new Group(composite, 0);
		groupCollectionType.setText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultCollectionTypeSectionTittle);
		groupCollectionType.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_DefaultCollectionTypeSectionDescription);
		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.grabExcessHorizontalSpace = true;
		gd.horizontalSpan = 2;
		groupCollectionType.setLayoutData(gd);
		
		GridLayout gl = new GridLayout();
		gl.numColumns = 1;
		groupCollectionType.setLayout(gl);
		
		String defaultCollectionType = editorProps.getProperty(PROP_COLLECTION_TYPE.getLocalName());
		
		createCollectionTypeButton(composite, gd, defaultCollectionType);
		createListTypeButton(composite, gd, defaultCollectionType);
		createSetTypeButton(composite, gd, defaultCollectionType);

	}
	
	private void createAccessTypeControl(Composite composite) {
		groupAccessType = new Group(composite, 0);
		groupAccessType.setText(JPAEditorMessages.JPAEditorPreferencesPage_entityAccessTypeButtonGroupLabel);
		groupAccessType.setToolTipText(JPAEditorMessages.JPAEditorPreferencesPage_entityAccessTypeButtonGroupTooltip);
		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.grabExcessHorizontalSpace = true;
		gd.horizontalSpan = 2;
		groupAccessType.setLayoutData(gd);
		
		GridLayout gl = new GridLayout();
		gl.numColumns = 1;
		groupAccessType.setLayout(gl);
		
		String defaultAccessType = editorProps.getProperty(PROP_ACCESS_TYPE.getLocalName());
		
		createFieldAccessButton(composite, gd, defaultAccessType);
		createPropertyAccessButton(composite, gd, defaultAccessType);
	}
	
	private void createCollectionTypeButton(Composite composite, GridData gd, String defaultCollectionType) {
		btnCollectionType = new Button(groupCollectionType, SWT.RADIO | SWT.FLAT);
		btnCollectionType.setText(COLLECTION_TYPE);
		gd = new GridData();
		btnCollectionType.setLayoutData(gd);
		btnCollectionType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_COLLECTION_TYPE));
		btnCollectionType.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});
	}
	
	private void createListTypeButton(Composite composite, GridData gd, String defaultCollectionType) {
		btnListType = new Button(groupCollectionType, SWT.RADIO | SWT.FLAT);
		btnListType.setText(LIST_TYPE);
		gd = new GridData();
		btnListType.setLayoutData(gd);
		btnListType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_LIST_TYPE));
		btnListType.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});
	}
	
	private void createSetTypeButton(Composite composite, GridData gd, String defaultCollectionType) {
		btnSetType = new Button(groupCollectionType, SWT.RADIO | SWT.FLAT);
		btnSetType.setText(SET_TYPE);
		gd = new GridData();
		btnSetType.setLayoutData(gd);
		btnSetType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_SET_TYPE));
		btnSetType.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});
	}
	
	private void createFieldAccessButton(Composite composite, GridData gd, String defaultAccessType) {
		btnFieldBasedAccess = new Button(groupAccessType, SWT.RADIO | SWT.FLAT);
		btnFieldBasedAccess.setText(JPAEditorMessages.JPAEditorPreferencesPage_entityFieldBasedAccessButtonLabel);
		gd = new GridData();
		btnFieldBasedAccess.setLayoutData(gd);
		btnFieldBasedAccess.setSelection(defaultAccessType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_FIELD_BASED));
		btnFieldBasedAccess.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});
	}
	
	private void createPropertyAccessButton(Composite composite, GridData gd, String defaultAccessType) {
		btnPropertyBasedAccess = new Button(groupAccessType, SWT.RADIO | SWT.FLAT);
		btnPropertyBasedAccess.setText(JPAEditorMessages.JPAEditorPreferencesPage_entityPropertyBasedAccessButtonLabel);
		gd = new GridData();
		btnPropertyBasedAccess.setLayoutData(gd);	
		btnPropertyBasedAccess.setSelection(defaultAccessType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_PROPERTY_BASED));
		btnPropertyBasedAccess.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent e) {
				propsModified = true;
			}
			public void widgetDefaultSelected(SelectionEvent e) {}			
		});		
	}
	
    protected void performDefaults() {
	    String defaultFolder = store.getString(JPAEditorPreferenceInitializer.PROPERTY_DIAGRAM_FOLDER);
		txtDefaultFolderField.setText(defaultFolder);		
	    String defaultPackageName = store.getString(JPAEditorPreferenceInitializer.PROPERTY_ENTITY_PACKAGE);
		txtDefaultEntityPackageField.setText(defaultPackageName);		
	    String defaultTableNamePrefix =  store.getString(JPAEditorPreferenceInitializer.PROPERTY_TABLE_NAME_PREFIX);
		txtDefaultTableNamePrefix.setText(defaultTableNamePrefix);		  
	    boolean defaultDirectEditAffectsClass = store.getBoolean(JPAEditorPreferenceInitializer.PROPERTY_DIRECT_EDIT_CLASS_NAME);
		checkDirectEditAffectsClass.setSelection(defaultDirectEditAffectsClass);
		String defaultAccessType = store.getString(JPAEditorPreferenceInitializer.PROPERTY_ENTITY_ACCESS_TYPE);
		btnFieldBasedAccess.setSelection(defaultAccessType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_FIELD_BASED));
		btnPropertyBasedAccess.setSelection(defaultAccessType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_PROPERTY_BASED));		
		String defaultCollectionType = store.getString(JPAEditorPreferenceInitializer.PROPERTY_DEFAULT_COLLECTION_TYPE);
		btnCollectionType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_COLLECTION_TYPE));
		btnListType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_LIST_TYPE));		
		btnSetType.setSelection(defaultCollectionType.equals(JPAEditorPreferenceInitializer.PROPERTY_VAL_SET_TYPE));
	    boolean defaultOneToManyOldStyle = store.getBoolean(JPAEditorPreferenceInitializer.PROPERTY_ONE_TO_MANY_OLD_STYLE);
	    if (!isJPA10Project)
	    	checkOneToManyOldStyle.setSelection(defaultOneToManyOldStyle);		
		super.performDefaults();
    }
    
    synchronized protected void validatePage() {
    	IStatus statFolder = JPAEditorPreferencesPage.validateDefaultFolder(txtDefaultFolderField.getText().trim(), 
    																		project.getName());
    	IStatus statPack = JPAEditorPreferencesPage.validateDefaultPackage(txtDefaultEntityPackageField.getText().trim());
    	IStatus statPref = JPAEditorPreferencesPage.validateTableNamePrefix(txtDefaultTableNamePrefix.getText().trim());
    	if (statFolder.getSeverity() == IStatus.ERROR) {
    		setErrorMessage(statFolder.getMessage());
    		setValid(false);
    		return;
    	}    	    	
    	if (statPack.getSeverity() == IStatus.ERROR) {
    		setErrorMessage(statPack.getMessage());
    		setValid(false);
    		return;
    	} 
    	if (statPref.getSeverity() == IStatus.ERROR) {
    		setErrorMessage(statPref.getMessage());
    		setValid(false);
    		return;
    	}
    	setErrorMessage(null);
    	setValid(true);
    	if (statPack.getSeverity() == IStatus.WARNING) {   		
    		setMessage(statPack.getMessage(), IMessageProvider.WARNING);
    		return;
    	}
    	if (statPref.getSeverity() == IStatus.WARNING) {   		
    		setMessage(statPref.getMessage(), IMessageProvider.WARNING);
    		return;
    	}
    	setMessage(null, IMessageProvider.NONE);
    }
    
    protected void performApply() {
    	saveSettingsIfModified();
    }
    
    public boolean performOk() {
    	return saveSettingsIfModified();
    }
    
    private boolean saveSettingsIfModified() {
    	if (propsModified) {
    		boolean saved = saveSettings();
    		propsModified = !saved;
    		return saved;
    	}
    	return true;
    }
    
    private boolean saveSettings() {
    	putNewValsInProps();
		IProject project = (IProject)getElement().getAdapter(IProject.class);
		Path path = new Path(PROJECT_SETTINGS_PATH);
		IFile quartzDataXMLFile = project.getFile(path);	
		File file = new File(quartzDataXMLFile.getLocation().toOSString());
		OutputStream os = null; 
		try {
			os = new FileOutputStream(file); 
			editorProps.store(os, "This file contains JPA Diagram Editor settings");	//$NON-NLS-1$;
			os.close();
			return true;
		} catch (IOException e) {
			MessageDialog.openError(Display.getCurrent().getActiveShell(), 
									JPAEditorMessages.JPADiagramPropertyPage_errSavePropsMsgTitle, 
									JPAEditorMessages.JPADiagramPropertyPage_errSavePropsMsgText);
			return false;
		}
	}
	
	private void putNewValsInProps() {
		editorProps.put(PROP_DEFAULT_DIAGRAM_FOLDER.getLocalName(), txtDefaultFolderField.getText().trim());
		editorProps.put(PROP_DEFAULT_PACKAGE.getLocalName(), txtDefaultEntityPackageField.getText().trim());
		editorProps.put(PROP_DEFAULT_TABLE_NAME_PREFIX.getLocalName(), txtDefaultTableNamePrefix.getText().trim());
		editorProps.put(PROP_DIRECT_EDIT_AFFECTS_CLASS.getLocalName(), "" + checkDirectEditAffectsClass.getSelection());	//$NON-NLS-1$;
		editorProps.put(PROP_ACCESS_TYPE.getLocalName(), btnFieldBasedAccess.getSelection() ? JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_FIELD_BASED : JPAEditorPreferenceInitializer.PROPERTY_VAL_ACCESS_PROPERTY_BASED);		
		editorProps.put(PROP_COLLECTION_TYPE.getLocalName(), getCollectionProperty());
		if (!isJPA10Project)
			editorProps.put(PROP_ONE_TO_MANY_OLD_STYLE.getLocalName(), "" + checkOneToManyOldStyle.getSelection());	//$NON-NLS-1$;
	}
	
	
	private String getCollectionProperty(){
		if (btnCollectionType.getSelection())
			return JPAEditorPreferenceInitializer.PROPERTY_VAL_COLLECTION_TYPE;
		else if (btnListType.getSelection())
			return JPAEditorPreferenceInitializer.PROPERTY_VAL_LIST_TYPE;
		else if (btnSetType.getSelection())
			return JPAEditorPreferenceInitializer.PROPERTY_VAL_SET_TYPE;
		return null;
	}
	
	private Properties createDefaultProps() {
		return createDefaultProps(store);
	}
	
	static private Properties createDefaultProps(IPreferenceStore store) {
		Properties editorDefaultProps = new Properties(); 
		editorDefaultProps.setProperty(PROP_DEFAULT_DIAGRAM_FOLDER.getLocalName(), store.getString(JPAEditorPreferenceInitializer.PROPERTY_DIAGRAM_FOLDER));		
		editorDefaultProps.setProperty(PROP_DEFAULT_PACKAGE.getLocalName(), store.getString(JPAEditorPreferenceInitializer.PROPERTY_ENTITY_PACKAGE));
		editorDefaultProps.setProperty(PROP_DEFAULT_TABLE_NAME_PREFIX.getLocalName(), store.getString(JPAEditorPreferenceInitializer.PROPERTY_TABLE_NAME_PREFIX));
		editorDefaultProps.setProperty(PROP_DIRECT_EDIT_AFFECTS_CLASS.getLocalName(), "" + store.getBoolean(JPAEditorPreferenceInitializer.PROPERTY_DIRECT_EDIT_CLASS_NAME));	//$NON-NLS-1$;
		editorDefaultProps.setProperty(PROP_ACCESS_TYPE.getLocalName(), store.getString(JPAEditorPreferenceInitializer.PROPERTY_ENTITY_ACCESS_TYPE));		
		editorDefaultProps.setProperty(PROP_COLLECTION_TYPE.getLocalName(), store.getString(JPAEditorPreferenceInitializer.PROPERTY_DEFAULT_COLLECTION_TYPE));
		editorDefaultProps.setProperty(PROP_ONE_TO_MANY_OLD_STYLE.getLocalName(), "" + store.getBoolean(JPAEditorPreferenceInitializer.PROPERTY_ONE_TO_MANY_OLD_STYLE));	//$NON-NLS-1$;
		
		
		return editorDefaultProps;
	}

	
	private void loadProperties() {
		Properties defaultProps = createDefaultProps();
		editorProps = new Properties(defaultProps);
		
		IProject project = (IProject)getElement().getAdapter(IProject.class);
		Path path = new Path(PROJECT_SETTINGS_PATH);
		IFile editorProjectProperties = project.getFile(path);
		
		File propertiesFile = new File(editorProjectProperties.getLocation().toOSString());
		if (propertiesFile.exists()) {
			InputStream is = null;
			try {
				is = new FileInputStream(propertiesFile);
				editorProps.load(is);	
				is.close();
			} catch (IOException e) {
				// ignore
			}
		}
	}
	
	static public Properties loadProperties(IProject project) {
		IPreferenceStore store = JPADiagramEditorPlugin.getDefault().getPreferenceStore();
		Properties defaultProps = createDefaultProps(store);
		Properties editorProps = new Properties(defaultProps);
		
		Path path = new Path(PROJECT_SETTINGS_PATH);
		IFile editorProjectProperties = project.getFile(path);
		
		File propertiesFile = new File(editorProjectProperties.getLocation().toOSString());
		if (propertiesFile.exists()) {
			InputStream is = null;
			try {
				is = new FileInputStream(propertiesFile);
				editorProps.load(is);	
				is.close();
			} catch (IOException e) {
				// ignore
			}
		}
		return editorProps;
	}
	
	public static String getDefaultFolder(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return getDefaultFolder(project, props);
	}
	
	public static String getDefaultPackage(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return getDefaultPackage(project, props);
	}
	
	public static String getDefaultTablePrefixName(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return getDefaultTablePrefixName(project, props);
	}
	
	public static boolean doesDirecteEditingAffectClassNameByDefault(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return doesDirecteEditingAffectClassNameByDefault(project, props);
	}
	
	public static boolean isAccessFieldBased(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return isAccessFieldBased(project, props);
	}	
	
	public static boolean isCollectionType(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return isCollectionType(project, props);
	}
	
	public static boolean isListType(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return isListType(project, props);
	}
	
	public static boolean isSetType(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return isSetType(project, props);
	}
	
	public static boolean shouldOneToManyUnidirBeOldStyle(IProject project) {
		Properties props = JPADiagramPropertyPage.loadProperties(project);
		return shouldOneToManyUnidirBeOldStyle(project, props);
	}	

//---------------------------------------------------------------------------------------------------

	public static String getDefaultFolder(IProject project, Properties props) {
		return props.getProperty(PROP_DEFAULT_DIAGRAM_FOLDER.getLocalName());
	}
	
	public static String getDefaultPackage(IProject project, Properties props) {
		return props.getProperty(PROP_DEFAULT_PACKAGE.getLocalName());
	}
	
	public static String getDefaultTablePrefixName(IProject project, Properties props) {
		return props.getProperty(PROP_DEFAULT_TABLE_NAME_PREFIX.getLocalName());
	}
	
	public static boolean doesDirecteEditingAffectClassNameByDefault(IProject project, Properties props) {
		return Boolean.parseBoolean(props.getProperty(PROP_DIRECT_EDIT_AFFECTS_CLASS.getLocalName()));
	}
	
	public static boolean isAccessFieldBased(IProject project, Properties props) {
		String accessType = props.getProperty(PROP_ACCESS_TYPE.getLocalName());
		return accessType.equals("field");	//$NON-NLS-1$;
	}	
	
	public static boolean isCollectionType(IProject project, Properties props) {
		String accessType = props.getProperty(PROP_COLLECTION_TYPE.getLocalName());
		return accessType.equals("collection");	//$NON-NLS-1$;
	}
	
	public static boolean isListType(IProject project, Properties props) {
		String accessType = props.getProperty(PROP_COLLECTION_TYPE.getLocalName());
		return accessType.equals("list");	//$NON-NLS-1$;
	}
	
	public static boolean isSetType(IProject project, Properties props) {
		String accessType = props.getProperty(PROP_COLLECTION_TYPE.getLocalName());
		return accessType.equals("set");	//$NON-NLS-1$;
	}
	
	public static boolean shouldOneToManyUnidirBeOldStyle(IProject project, Properties props) {
		return Boolean.parseBoolean(props.getProperty(PROP_ONE_TO_MANY_OLD_STYLE.getLocalName()));
	}

}