plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelper.java - webtools-common/webtools.common - Git at Google

 /*******************************************************************************
  * Copyright (c) 2003, 2006 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.wst.common.internal.emfworkbench.integration;


 import java.util.HashMap;

 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.EPackage;
 import org.eclipse.emf.ecore.EStructuralFeature;
 import org.eclipse.emf.ecore.impl.EClassImpl;
 import org.eclipse.emf.edit.command.SetCommand;
 import org.eclipse.jem.util.logger.proxy.Logger;
 import org.eclipse.wst.common.internal.emf.utilities.FeatureValueConversionException;
 import org.eclipse.wst.common.internal.emf.utilities.FeatureValueConverter;

 /**
  * Insert the type's description here. Creation date: (4/6/2001 3:23:36 PM)
  *
  * @author: Administrator
  */
 public class ModifierHelper {

 	private EObject owner;
 	private ModifierHelper ownerHelper;
 	private OwnerProvider ownerProvider;
 	private Object value;
 	private EStructuralFeature feature;
 	private HashMap attributes;
 	private boolean shouldUnsetValue = false;
 	private String valueXSITypeName;
 	private FeatureValueConverter featureValueConverter;

 	public static final int ACTION_SET = 0;
 	public static final int ACTION_UNSET = 1;
 	public static final int ACTION_BOTH = 2;

 	/**
 	 * J2EEModifierHelper constructor comment.
 	 */
 	public ModifierHelper() {
 		super();
 	}

 	/**
 	 * J2EEModifierHelper constructor comment.
 	 */
 	public ModifierHelper(EObject anOwner, EStructuralFeature aFeature, Object aValue) {
 		setOwner(anOwner);
 		setFeature(aFeature);
 		setValue(aValue);
 	}

 	/**
 	 * J2EEModifierHelper constructor comment.
 	 */
 	public ModifierHelper(ModifierHelper anOwnerHelper, EStructuralFeature aFeature, Object aValue) {
 		setOwnerHelper(anOwnerHelper);
 		setFeature(aFeature);
 		setValue(aValue);
 	}

 	/**
 	 * J2EEModifierHelper constructor comment.
 	 */
 	public ModifierHelper(OwnerProvider anOwnerProvider, EStructuralFeature aFeature, Object aValue) {
 		setOwnerProvider(anOwnerProvider);
 		setFeature(aFeature);
 		setValue(aValue);
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return java.util.HashMap
 	 */
 	public void addAttribute(EStructuralFeature aFeature, Object aValue) {
 		if (aFeature != null && aValue != null)
 			getAttributes().put(aFeature, aValue);
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newValue
 	 *            java.lang.Object
 	 */
 	protected Object convertValue(java.lang.Object newValue) {
 		return getFeatureValueConverter().convertValue(newValue, getFeature());
 	}

 	//Calling this will cause the value to be removed or unset from the owner.
 	public void doUnsetValue() {
 		shouldUnsetValue = true;
 		if (value != SetCommand.UNSET_VALUE && feature != null && !feature.isMany())
 			primSetValue(SetCommand.UNSET_VALUE);
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return java.util.HashMap
 	 */
 	public java.util.HashMap getAttributes() {
 		if (attributes == null)
 			attributes = new HashMap();
 		return attributes;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return org.eclipse.emf.ecore.EFactory
 	 */
 	protected org.eclipse.emf.ecore.EFactory getFactory() {
 		return getPackage().getEFactoryInstance();
 	}

 	protected EPackage getPackage() {
 		return ((EClassImpl) getFeatureType()).getEPackage();
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return org.eclipse.emf.ecore.EStructuralFeature
 	 */
 	public org.eclipse.emf.ecore.EStructuralFeature getFeature() {
 		return feature;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return EObject
 	 */
 	protected EObject getFeatureType() {
 		return getFeature().getEType();
 	}

 	/**
 	 * Insert the method's description here. Creation date: (5/10/2001 4:51:58 PM)
 	 *
 	 * @return com.ibm.etools.j2ee.commands.FeatureValueConverter
 	 */
 	public FeatureValueConverter getFeatureValueConverter() {
 		if (featureValueConverter == null)
 			featureValueConverter = FeatureValueConverter.DEFAULT;
 		return featureValueConverter;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return String
 	 */
 	protected String getNewValueTypeName() {
 		if (getValueXSITypeName() != null && getValueXSITypeName().length() > 0)
 			return getValueXSITypeName();
 		return (((EClass) getFeatureType()).getName());
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return org.eclipse.emf.ecore.EObject
 	 */
 	public org.eclipse.emf.ecore.EObject getOwner() {
 		if (owner == null) {
 			OwnerProvider provider = getOwnerProvider();
 			EObject providerOwner = null;
 			if (provider != null)
 				providerOwner = provider.getOwner();
 			if (providerOwner == null && getOwnerHelper() != null)
 				providerOwner = (EObject) getOwnerHelper().getValue();
 			return providerOwner;
 		}
 		return owner;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/8/2001 2:47:54 PM)
 	 *
 	 * @return com.ibm.etools.j2ee.commands.J2EEModifierHelper
 	 */
 	public ModifierHelper getOwnerHelper() {
 		if (ownerHelper == null) {
 			if (getOwnerProvider() != null && getOwnerProvider().getOwner() == null)
 				return getOwnerProvider().getOwnerHelper();
 		}
 		return ownerHelper;
 	}

 	public ModifierHelper primGetOwnerHelper() {
 		return ownerHelper;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (9/18/2001 1:31:14 PM)
 	 *
 	 * @return com.ibm.etools.j2ee.ui.J2EEOwnerProvider
 	 */
 	public OwnerProvider getOwnerProvider() {
 		return ownerProvider;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @return java.lang.Object
 	 */
 	public java.lang.Object getValue() {
 		return value;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/10/2001 3:39:31 PM)
 	 *
 	 * @return java.lang.String
 	 */
 	public java.lang.String getValueXSITypeName() {
 		return valueXSITypeName;
 	}

 	/**
 	 * This will automatically get called from the J2EEModelModifier before executing so it is not
 	 * necessary to call it directly.
 	 */
 	public boolean isComplete() {
 		boolean result = true;
 		if (getOwnerHelper() != null)
 			result = getOwnerHelper().isComplete();
 		if (!mustCreateValue())
 			result = getValue() != null || shouldUnsetValue();
 		else
 			result = getFeatureType() != null;
 		return result && getFeature() != null && (getOwner() != null || getOwnerHelper() != null);
 	}

 	public boolean mustCreateValue() {
 		return getValue() == null && getFeature() != null && !shouldUnsetValue();
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newValue
 	 *            java.lang.Object
 	 */
 	public void primSetValue(java.lang.Object newValue) {
 		value = newValue;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newFeature
 	 *            org.eclipse.emf.ecore.EStructuralFeature
 	 */
 	public void setFeature(org.eclipse.emf.ecore.EStructuralFeature newFeature) {
 		feature = newFeature;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (5/10/2001 4:51:58 PM)
 	 *
 	 * @param newFeatureValueConverter
 	 *            com.ibm.etools.j2ee.commands.FeatureValueConverter
 	 */
 	public void setFeatureValueConverter(FeatureValueConverter newFeatureValueConverter) {
 		featureValueConverter = newFeatureValueConverter;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newOwner
 	 *            org.eclipse.emf.ecore.EObject
 	 */
 	public void setOwner(org.eclipse.emf.ecore.EObject newOwner) {
 		owner = newOwner;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/8/2001 2:47:54 PM)
 	 *
 	 * @param newOwnerHelper
 	 *            com.ibm.etools.j2ee.commands.J2EEModifierHelper
 	 */
 	public void setOwnerHelper(ModifierHelper newOwnerHelper) {
 		ownerHelper = newOwnerHelper;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (9/18/2001 1:31:14 PM)
 	 *
 	 * @param newOwnerProvider
 	 *            com.ibm.etools.j2ee.ui.J2EEOwnerProvider
 	 */
 	public void setOwnerProvider(OwnerProvider newOwnerProvider) {
 		ownerProvider = newOwnerProvider;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newValue
 	 *            java.lang.Object
 	 */
 	public void setValue(java.lang.Object newValue) {
 		try {
 			primSetValue(convertValue(newValue));
 		} catch (FeatureValueConversionException featureException) {
 			Logger.getLogger().logError(featureException);
 			primSetValue(null);
 		}
 	}

 	/**
 	 * Treat an empty String as a null value. Creation date: (4/6/2001 3:28:16 PM)
 	 *
 	 * @param newValue
 	 *            java.lang.Object
 	 */
 	public void setValueFromWidget(String newValue) {
 		Object data = newValue;
 		if (newValue != null && newValue.length() == 0)
 			data = null;
 		setValue(data);
 		if (data == null)
 			doUnsetValue();
 		else
 			shouldUnsetValue = false;
 	}

 	/**
 	 * Insert the method's description here. Creation date: (4/10/2001 3:39:31 PM)
 	 *
 	 * @param newValueXSITypeName
 	 *            java.lang.String
 	 */
 	public void setValueXSITypeName(java.lang.String newValueXSITypeName) {
 		valueXSITypeName = newValueXSITypeName;
 	}

 	public boolean shouldUnsetValue() {
 		return shouldUnsetValue;
 	}

 	public EObject createNewObjectFromFeature() {
 		EClass metaClass = (EClass) getPackage().getEClassifier(getNewValueTypeName());
 		return getFactory().create(metaClass);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2003, 2006 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.wst.common.internal.emfworkbench.integration;


	import java.util.HashMap;

	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.EPackage;
	import org.eclipse.emf.ecore.EStructuralFeature;
	import org.eclipse.emf.ecore.impl.EClassImpl;
	import org.eclipse.emf.edit.command.SetCommand;
	import org.eclipse.jem.util.logger.proxy.Logger;
	import org.eclipse.wst.common.internal.emf.utilities.FeatureValueConversionException;
	import org.eclipse.wst.common.internal.emf.utilities.FeatureValueConverter;

	/**
	* Insert the type's description here. Creation date: (4/6/2001 3:23:36 PM)
	*
	* @author: Administrator
	*/
	public class ModifierHelper {

	private EObject owner;
	private ModifierHelper ownerHelper;
	private OwnerProvider ownerProvider;
	private Object value;
	private EStructuralFeature feature;
	private HashMap attributes;
	private boolean shouldUnsetValue = false;
	private String valueXSITypeName;
	private FeatureValueConverter featureValueConverter;

	public static final int ACTION_SET = 0;
	public static final int ACTION_UNSET = 1;
	public static final int ACTION_BOTH = 2;

	/**
	* J2EEModifierHelper constructor comment.
	*/
	public ModifierHelper() {
	super();
	}

	/**
	* J2EEModifierHelper constructor comment.
	*/
	public ModifierHelper(EObject anOwner, EStructuralFeature aFeature, Object aValue) {
	setOwner(anOwner);
	setFeature(aFeature);
	setValue(aValue);
	}

	/**
	* J2EEModifierHelper constructor comment.
	*/
	public ModifierHelper(ModifierHelper anOwnerHelper, EStructuralFeature aFeature, Object aValue) {
	setOwnerHelper(anOwnerHelper);
	setFeature(aFeature);
	setValue(aValue);
	}

	/**
	* J2EEModifierHelper constructor comment.
	*/
	public ModifierHelper(OwnerProvider anOwnerProvider, EStructuralFeature aFeature, Object aValue) {
	setOwnerProvider(anOwnerProvider);
	setFeature(aFeature);
	setValue(aValue);
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return java.util.HashMap
	*/
	public void addAttribute(EStructuralFeature aFeature, Object aValue) {
	if (aFeature != null && aValue != null)
	getAttributes().put(aFeature, aValue);
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newValue
	* java.lang.Object
	*/
	protected Object convertValue(java.lang.Object newValue) {
	return getFeatureValueConverter().convertValue(newValue, getFeature());
	}

	//Calling this will cause the value to be removed or unset from the owner.
	public void doUnsetValue() {
	shouldUnsetValue = true;
	if (value != SetCommand.UNSET_VALUE && feature != null && !feature.isMany())
	primSetValue(SetCommand.UNSET_VALUE);
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return java.util.HashMap
	*/
	public java.util.HashMap getAttributes() {
	if (attributes == null)
	attributes = new HashMap();
	return attributes;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return org.eclipse.emf.ecore.EFactory
	*/
	protected org.eclipse.emf.ecore.EFactory getFactory() {
	return getPackage().getEFactoryInstance();
	}

	protected EPackage getPackage() {
	return ((EClassImpl) getFeatureType()).getEPackage();
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return org.eclipse.emf.ecore.EStructuralFeature
	*/
	public org.eclipse.emf.ecore.EStructuralFeature getFeature() {
	return feature;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return EObject
	*/
	protected EObject getFeatureType() {
	return getFeature().getEType();
	}

	/**
	* Insert the method's description here. Creation date: (5/10/2001 4:51:58 PM)
	*
	* @return com.ibm.etools.j2ee.commands.FeatureValueConverter
	*/
	public FeatureValueConverter getFeatureValueConverter() {
	if (featureValueConverter == null)
	featureValueConverter = FeatureValueConverter.DEFAULT;
	return featureValueConverter;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return String
	*/
	protected String getNewValueTypeName() {
	if (getValueXSITypeName() != null && getValueXSITypeName().length() > 0)
	return getValueXSITypeName();
	return (((EClass) getFeatureType()).getName());
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return org.eclipse.emf.ecore.EObject
	*/
	public org.eclipse.emf.ecore.EObject getOwner() {
	if (owner == null) {
	OwnerProvider provider = getOwnerProvider();
	EObject providerOwner = null;
	if (provider != null)
	providerOwner = provider.getOwner();
	if (providerOwner == null && getOwnerHelper() != null)
	providerOwner = (EObject) getOwnerHelper().getValue();
	return providerOwner;
	}
	return owner;
	}

	/**
	* Insert the method's description here. Creation date: (4/8/2001 2:47:54 PM)
	*
	* @return com.ibm.etools.j2ee.commands.J2EEModifierHelper
	*/
	public ModifierHelper getOwnerHelper() {
	if (ownerHelper == null) {
	if (getOwnerProvider() != null && getOwnerProvider().getOwner() == null)
	return getOwnerProvider().getOwnerHelper();
	}
	return ownerHelper;
	}

	public ModifierHelper primGetOwnerHelper() {
	return ownerHelper;
	}

	/**
	* Insert the method's description here. Creation date: (9/18/2001 1:31:14 PM)
	*
	* @return com.ibm.etools.j2ee.ui.J2EEOwnerProvider
	*/
	public OwnerProvider getOwnerProvider() {
	return ownerProvider;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @return java.lang.Object
	*/
	public java.lang.Object getValue() {
	return value;
	}

	/**
	* Insert the method's description here. Creation date: (4/10/2001 3:39:31 PM)
	*
	* @return java.lang.String
	*/
	public java.lang.String getValueXSITypeName() {
	return valueXSITypeName;
	}

	/**
	* This will automatically get called from the J2EEModelModifier before executing so it is not
	* necessary to call it directly.
	*/
	public boolean isComplete() {
	boolean result = true;
	if (getOwnerHelper() != null)
	result = getOwnerHelper().isComplete();
	if (!mustCreateValue())
	result = getValue() != null \|\| shouldUnsetValue();
	else
	result = getFeatureType() != null;
	return result && getFeature() != null && (getOwner() != null \|\| getOwnerHelper() != null);
	}

	public boolean mustCreateValue() {
	return getValue() == null && getFeature() != null && !shouldUnsetValue();
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newValue
	* java.lang.Object
	*/
	public void primSetValue(java.lang.Object newValue) {
	value = newValue;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newFeature
	* org.eclipse.emf.ecore.EStructuralFeature
	*/
	public void setFeature(org.eclipse.emf.ecore.EStructuralFeature newFeature) {
	feature = newFeature;
	}

	/**
	* Insert the method's description here. Creation date: (5/10/2001 4:51:58 PM)
	*
	* @param newFeatureValueConverter
	* com.ibm.etools.j2ee.commands.FeatureValueConverter
	*/
	public void setFeatureValueConverter(FeatureValueConverter newFeatureValueConverter) {
	featureValueConverter = newFeatureValueConverter;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newOwner
	* org.eclipse.emf.ecore.EObject
	*/
	public void setOwner(org.eclipse.emf.ecore.EObject newOwner) {
	owner = newOwner;
	}

	/**
	* Insert the method's description here. Creation date: (4/8/2001 2:47:54 PM)
	*
	* @param newOwnerHelper
	* com.ibm.etools.j2ee.commands.J2EEModifierHelper
	*/
	public void setOwnerHelper(ModifierHelper newOwnerHelper) {
	ownerHelper = newOwnerHelper;
	}

	/**
	* Insert the method's description here. Creation date: (9/18/2001 1:31:14 PM)
	*
	* @param newOwnerProvider
	* com.ibm.etools.j2ee.ui.J2EEOwnerProvider
	*/
	public void setOwnerProvider(OwnerProvider newOwnerProvider) {
	ownerProvider = newOwnerProvider;
	}

	/**
	* Insert the method's description here. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newValue
	* java.lang.Object
	*/
	public void setValue(java.lang.Object newValue) {
	try {
	primSetValue(convertValue(newValue));
	} catch (FeatureValueConversionException featureException) {
	Logger.getLogger().logError(featureException);
	primSetValue(null);
	}
	}

	/**
	* Treat an empty String as a null value. Creation date: (4/6/2001 3:28:16 PM)
	*
	* @param newValue
	* java.lang.Object
	*/
	public void setValueFromWidget(String newValue) {
	Object data = newValue;
	if (newValue != null && newValue.length() == 0)
	data = null;
	setValue(data);
	if (data == null)
	doUnsetValue();
	else
	shouldUnsetValue = false;
	}

	/**
	* Insert the method's description here. Creation date: (4/10/2001 3:39:31 PM)
	*
	* @param newValueXSITypeName
	* java.lang.String
	*/
	public void setValueXSITypeName(java.lang.String newValueXSITypeName) {
	valueXSITypeName = newValueXSITypeName;
	}

	public boolean shouldUnsetValue() {
	return shouldUnsetValue;
	}

	public EObject createNewObjectFromFeature() {
	EClass metaClass = (EClass) getPackage().getEClassifier(getNewValueTypeName());
	return getFactory().create(metaClass);
	}
	}