org.eclipse.osbp.ecview.core.common.editparts.emf/src/org/eclipse/osbp/ecview/core/common/editpart/emf/datatypes/ValidatorByConfigFactory.java - osbp/org.eclipse.osbp.ecview.core - Git at Google

 /**
  * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *         Florian Pirchner - Initial implementation
  */
 package org.eclipse.osbp.ecview.core.common.editpart.emf.datatypes;

 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.osbp.ecview.core.common.context.IViewContext;
 import org.eclipse.osbp.ecview.core.common.editpart.datatypes.IDatatypeEditpart.DatatypeBridge;
 import org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.emf.validation.RegexpValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IBeanValidationValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IMaxLengthValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IMinLengthValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IRegexpValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.validation.IValidatorEditpart;
 import org.eclipse.osbp.ecview.core.common.model.core.YElement;
 import org.eclipse.osbp.ecview.core.common.model.validation.ValidationFactory;
 import org.eclipse.osbp.ecview.core.common.model.validation.ValidationPackage;
 import org.eclipse.osbp.ecview.core.common.model.validation.YBeanValidationValidator;
 import org.eclipse.osbp.ecview.core.common.model.validation.YBeanValidationValidatorConfig;
 import org.eclipse.osbp.ecview.core.common.model.validation.YMaxLengthValidationConfig;
 import org.eclipse.osbp.ecview.core.common.model.validation.YMaxLengthValidator;
 import org.eclipse.osbp.ecview.core.common.model.validation.YMinLengthValidationConfig;
 import org.eclipse.osbp.ecview.core.common.model.validation.YMinLengthValidator;
 import org.eclipse.osbp.ecview.core.common.model.validation.YRegexpValidationConfig;
 import org.eclipse.osbp.ecview.core.common.model.validation.YRegexpValidator;
 import org.eclipse.osbp.ecview.core.common.model.validation.YValidationConfig;
 import org.eclipse.osbp.ecview.core.common.model.validation.YValidator;
 import org.eclipse.osbp.ecview.core.common.validation.IValidationConfig;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 // TODO: Auto-generated Javadoc
 /**
  * A temporary factory. It should be replaced by OSGi services later.
  */
 public class ValidatorByConfigFactory {

 	/** The Constant LOGGER. */
 	private static final Logger LOGGER = LoggerFactory
 			.getLogger(ValidatorByConfigFactory.class);

 	/**
 	 * Creates a new minLengthValidator.
 	 *
 	 * @param config
 	 *            the config
 	 * @return the i min length validator editpart
 	 */
 	public static IMinLengthValidatorEditpart createMinLengthValidator(
 			IValidationConfig config) {
 		YMinLengthValidationConfig yValidationConfig = (YMinLengthValidationConfig) config
 				.getValidationSettings();
 		IMinLengthValidatorEditpart editpart = null;
 		int minlength = yValidationConfig.getMinLength();
 		if (minlength > 0) {
 			YMinLengthValidator yValidator = ValidationFactory.eINSTANCE
 					.createYMinLengthValidator();
 			yValidator.setMinLength(minlength);
 			editpart = ElementEditpart.getEditpart(config.getContext(), yValidator);
 			editpart.setConfig(config);
 		}
 		return editpart;
 	}

 	/**
 	 * Creates a new maxLengthValidator.
 	 *
 	 * @param config
 	 *            the config
 	 * @return the i max length validator editpart
 	 */
 	public static IMaxLengthValidatorEditpart createMaxLengthValidator(
 			IValidationConfig config) {
 		YMaxLengthValidationConfig yValidationConfig = (YMaxLengthValidationConfig) config
 				.getValidationSettings();
 		IMaxLengthValidatorEditpart editpart = null;
 		int maxlength = yValidationConfig.getMaxLength();
 		if (maxlength > 0) {
 			YMaxLengthValidator yValidator = ValidationFactory.eINSTANCE
 					.createYMaxLengthValidator();
 			yValidator.setMaxLength(maxlength);
 			editpart = getEditpart(config.getContext(), yValidator);
 			editpart.setConfig(config);
 		}
 		return editpart;
 	}

 	/**
 	 * Creates a new regExpressionValidator.
 	 *
 	 * @param config
 	 *            the config
 	 * @return the i regexp validator editpart
 	 */
 	public static IRegexpValidatorEditpart createRegExpressionValidator(
 			IValidationConfig config) {
 		YRegexpValidationConfig yValidationConfig = (YRegexpValidationConfig) config
 				.getValidationSettings();
 		IRegexpValidatorEditpart editpart = null;
 		String regexp = yValidationConfig.getRegExpression();
 		if (RegexpValidatorEditpart.isValidRegExpression(regexp)) {
 			YRegexpValidator yValidator = ValidationFactory.eINSTANCE
 					.createYRegexpValidator();
 			yValidator.setRegExpression(regexp);
 			editpart = getEditpart(config.getContext(), yValidator);
 			editpart.setConfig(config);
 		}
 		return editpart;
 	}

 	/**
 	 * Creates a new beanValidationValidator.
 	 *
 	 * @param config
 	 *            the config
 	 * @return the i bean validation validator editpart
 	 */
 	public static IBeanValidationValidatorEditpart createBeanValidationValidator(
 			IValidationConfig config) {
 		YBeanValidationValidatorConfig yValidationConfig = (YBeanValidationValidatorConfig) config
 				.getValidationSettings();
 		IBeanValidationValidatorEditpart editpart = null;
 		Class<?> bvalClass = yValidationConfig.getBvalClass();
 		String bvalClassName = yValidationConfig
 				.getBvalClassFullyQualifiedName();
 		if (bvalClass != null || bvalClassName != null) {
 			YBeanValidationValidator yValidator = ValidationFactory.eINSTANCE
 					.createYBeanValidationValidator();
 			yValidator.setBvalClass(bvalClass);
 			yValidator.setBvalClassFullyQualifiedName(bvalClassName);
 			yValidator.setBvalProperty(yValidationConfig.getBvalProperty());
 			editpart = getEditpart(config.getContext(), yValidator);
 			editpart.setConfig(config);
 		}
 		return editpart;
 	}

 	/**
 	 * See {@link ElementEditpart#getEditpart(viewContext, YElement)}.
 	 *
 	 * @param <A>
 	 *            the generic type
 	 * @param yValidator
 	 *            the y validator
 	 * @return the editpart
 	 */
 	private static <A extends IValidatorEditpart> A getEditpart(IViewContext context,
 			YElement yValidator) {
 		return ElementEditpart.getEditpart(context, yValidator);
 	}

 	/**
 	 * Internal get validators delta.
 	 *
 	 * @param config
 	 *            the config
 	 * @param bridge
 	 *            the bridge
 	 * @param notification
 	 *            the notification
 	 * @return the datatype editpart. validator delta
 	 */
 	public static DatatypeEditpart.ValidatorDelta internalGetValidatorsDelta(
 			IValidationConfig config, DatatypeBridge bridge,
 			Notification notification) {

 		List<IValidatorEditpart> toAdd = new ArrayList<IValidatorEditpart>();
 		List<IValidatorEditpart> toRemove = new ArrayList<IValidatorEditpart>();

 		List<IValidatorEditpart> activeValidators = bridge
 				.getDatatypeValidators();
 		if (notification.getFeature() == ValidationPackage.Literals.YMAX_LENGTH_VALIDATION_CONFIG__MAX_LENGTH) {
 			int oldValue = notification.getOldIntValue();
 			int newValue = notification.getNewIntValue();

 			if (oldValue <= 0 && newValue > 0) {
 				toAdd.add(createMaxLengthValidator(config));
 			} else if (oldValue > 0 && newValue <= 0) {
 				toRemove.addAll(findToRemoveValidators(activeValidators,
 						YMaxLengthValidator.class));
 			} else {
 				// nothing to do -> Other changes of attributes are handled by
 				// the ValidationConfigToValidatorBridge
 			}
 		} else if (notification.getFeature() == ValidationPackage.Literals.YMIN_LENGTH_VALIDATION_CONFIG__MIN_LENGTH) {
 			int oldValue = notification.getOldIntValue();
 			int newValue = notification.getNewIntValue();

 			if (oldValue <= 0 && newValue > 0) {
 				toAdd.add(createMinLengthValidator(config));
 			} else if (oldValue > 0 && newValue <= 0) {
 				toRemove.addAll(findToRemoveValidators(activeValidators,
 						YMinLengthValidator.class));
 			} else {
 				// nothing to do -> Other changes of attributes are handled by
 				// the ValidationConfigToValidatorBridge
 			}
 		} else if (notification.getFeature() == ValidationPackage.Literals.YREGEXP_VALIDATION_CONFIG__REG_EXPRESSION) {
 			String oldValue = notification.getOldStringValue();
 			String newValue = notification.getNewStringValue();

 			if (!RegexpValidatorEditpart.isValidRegExpression(oldValue)
 					&& RegexpValidatorEditpart.isValidRegExpression(newValue)) {
 				toAdd.add(createRegExpressionValidator(config));
 			} else if (RegexpValidatorEditpart.isValidRegExpression(oldValue)
 					&& !RegexpValidatorEditpart.isValidRegExpression(newValue)) {
 				toRemove.addAll(findToRemoveValidators(activeValidators,
 						YRegexpValidator.class));
 			} else {
 				// nothing to do -> Other changes of attributes are handled by
 				// the ValidationConfigToValidatorBridge
 			}
 		} else if (notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_CLASS
 				|| notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_CLASS_FULLY_QUALIFIED_NAME
 				|| notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_PROPERTY) {
 			LOGGER.error("Implement adding and removing BeanValidationValidators!");
 		}

 		return new DatatypeEditpart.ValidatorDelta(toAdd, toRemove);
 	}

 	/**
 	 * Tries to find all validators of the given type. Each validator of the
 	 * same type will then be removed.
 	 * <p>
 	 * Note: If we need detailed control of the validators to remove (for
 	 * instance only validators that have been created by this instance of
 	 * datatype editpart), then we have to add a "marker adapter" to the
 	 * prepared {@link YValidator}. This marker adapter will keep a reference to
 	 * this datatype editpart, and then we can separate validators that have
 	 * been added by different editparts. For now, there is no need for it.
 	 *
 	 * @param activeValidators
 	 *            the active validators
 	 * @param clazz
 	 *            the clazz
 	 * @return the list
 	 */
 	protected static List<IValidatorEditpart> findToRemoveValidators(
 			List<IValidatorEditpart> activeValidators,
 			Class<? extends YValidator> clazz) {
 		List<IValidatorEditpart> toRemove = new ArrayList<IValidatorEditpart>();
 		for (IValidatorEditpart editpart : activeValidators) {
 			if (clazz.isAssignableFrom(editpart.getModel().getClass())) {
 				toRemove.add(editpart);
 			}
 		}
 		return toRemove;
 	}

 	/**
 	 * Collects all validators.
 	 *
 	 * @param config
 	 *            the config
 	 * @return the all validators
 	 */
 	public static DatatypeEditpart.ValidatorDelta getAllValidators(
 			IValidationConfig config) {

 		List<IValidatorEditpart> toAdd = new ArrayList<IValidatorEditpart>();
 		if (!(config.getValidationSettings() instanceof YValidationConfig)) {
 			return new DatatypeEditpart.ValidatorDelta(toAdd, null);
 		}

 		YValidationConfig yValidationConfig = (YValidationConfig) config
 				.getValidationSettings();
 		if (yValidationConfig instanceof YMinLengthValidationConfig) {
 			IMinLengthValidatorEditpart minLength = createMinLengthValidator(config);
 			if (minLength != null) {
 				toAdd.add(minLength);
 			}
 		}

 		if (yValidationConfig instanceof YMaxLengthValidationConfig) {
 			IMaxLengthValidatorEditpart maxLength = createMaxLengthValidator(config);
 			if (maxLength != null) {
 				toAdd.add(maxLength);
 			}
 		}

 		if (yValidationConfig instanceof YRegexpValidationConfig) {
 			IRegexpValidatorEditpart regexp = createRegExpressionValidator(config);
 			if (regexp != null) {
 				toAdd.add(regexp);
 			}
 		}

 		if (yValidationConfig instanceof YBeanValidationValidatorConfig) {
 			IBeanValidationValidatorEditpart beanVal = createBeanValidationValidator(config);
 			if (beanVal != null) {
 				toAdd.add(beanVal);
 			}
 		}

 		return new DatatypeEditpart.ValidatorDelta(toAdd, null);
 	}
 }
	/**
	* Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Florian Pirchner - Initial implementation
	*/
	package org.eclipse.osbp.ecview.core.common.editpart.emf.datatypes;

	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.osbp.ecview.core.common.context.IViewContext;
	import org.eclipse.osbp.ecview.core.common.editpart.datatypes.IDatatypeEditpart.DatatypeBridge;
	import org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.emf.validation.RegexpValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IBeanValidationValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IMaxLengthValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IMinLengthValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IRegexpValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.validation.IValidatorEditpart;
	import org.eclipse.osbp.ecview.core.common.model.core.YElement;
	import org.eclipse.osbp.ecview.core.common.model.validation.ValidationFactory;
	import org.eclipse.osbp.ecview.core.common.model.validation.ValidationPackage;
	import org.eclipse.osbp.ecview.core.common.model.validation.YBeanValidationValidator;
	import org.eclipse.osbp.ecview.core.common.model.validation.YBeanValidationValidatorConfig;
	import org.eclipse.osbp.ecview.core.common.model.validation.YMaxLengthValidationConfig;
	import org.eclipse.osbp.ecview.core.common.model.validation.YMaxLengthValidator;
	import org.eclipse.osbp.ecview.core.common.model.validation.YMinLengthValidationConfig;
	import org.eclipse.osbp.ecview.core.common.model.validation.YMinLengthValidator;
	import org.eclipse.osbp.ecview.core.common.model.validation.YRegexpValidationConfig;
	import org.eclipse.osbp.ecview.core.common.model.validation.YRegexpValidator;
	import org.eclipse.osbp.ecview.core.common.model.validation.YValidationConfig;
	import org.eclipse.osbp.ecview.core.common.model.validation.YValidator;
	import org.eclipse.osbp.ecview.core.common.validation.IValidationConfig;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	// TODO: Auto-generated Javadoc
	/**
	* A temporary factory. It should be replaced by OSGi services later.
	*/
	public class ValidatorByConfigFactory {

	/** The Constant LOGGER. */
	private static final Logger LOGGER = LoggerFactory
	.getLogger(ValidatorByConfigFactory.class);

	/**
	* Creates a new minLengthValidator.
	*
	* @param config
	* the config
	* @return the i min length validator editpart
	*/
	public static IMinLengthValidatorEditpart createMinLengthValidator(
	IValidationConfig config) {
	YMinLengthValidationConfig yValidationConfig = (YMinLengthValidationConfig) config
	.getValidationSettings();
	IMinLengthValidatorEditpart editpart = null;
	int minlength = yValidationConfig.getMinLength();
	if (minlength > 0) {
	YMinLengthValidator yValidator = ValidationFactory.eINSTANCE
	.createYMinLengthValidator();
	yValidator.setMinLength(minlength);
	editpart = ElementEditpart.getEditpart(config.getContext(), yValidator);
	editpart.setConfig(config);
	}
	return editpart;
	}

	/**
	* Creates a new maxLengthValidator.
	*
	* @param config
	* the config
	* @return the i max length validator editpart
	*/
	public static IMaxLengthValidatorEditpart createMaxLengthValidator(
	IValidationConfig config) {
	YMaxLengthValidationConfig yValidationConfig = (YMaxLengthValidationConfig) config
	.getValidationSettings();
	IMaxLengthValidatorEditpart editpart = null;
	int maxlength = yValidationConfig.getMaxLength();
	if (maxlength > 0) {
	YMaxLengthValidator yValidator = ValidationFactory.eINSTANCE
	.createYMaxLengthValidator();
	yValidator.setMaxLength(maxlength);
	editpart = getEditpart(config.getContext(), yValidator);
	editpart.setConfig(config);
	}
	return editpart;
	}

	/**
	* Creates a new regExpressionValidator.
	*
	* @param config
	* the config
	* @return the i regexp validator editpart
	*/
	public static IRegexpValidatorEditpart createRegExpressionValidator(
	IValidationConfig config) {
	YRegexpValidationConfig yValidationConfig = (YRegexpValidationConfig) config
	.getValidationSettings();
	IRegexpValidatorEditpart editpart = null;
	String regexp = yValidationConfig.getRegExpression();
	if (RegexpValidatorEditpart.isValidRegExpression(regexp)) {
	YRegexpValidator yValidator = ValidationFactory.eINSTANCE
	.createYRegexpValidator();
	yValidator.setRegExpression(regexp);
	editpart = getEditpart(config.getContext(), yValidator);
	editpart.setConfig(config);
	}
	return editpart;
	}

	/**
	* Creates a new beanValidationValidator.
	*
	* @param config
	* the config
	* @return the i bean validation validator editpart
	*/
	public static IBeanValidationValidatorEditpart createBeanValidationValidator(
	IValidationConfig config) {
	YBeanValidationValidatorConfig yValidationConfig = (YBeanValidationValidatorConfig) config
	.getValidationSettings();
	IBeanValidationValidatorEditpart editpart = null;
	Class<?> bvalClass = yValidationConfig.getBvalClass();
	String bvalClassName = yValidationConfig
	.getBvalClassFullyQualifiedName();
	if (bvalClass != null \|\| bvalClassName != null) {
	YBeanValidationValidator yValidator = ValidationFactory.eINSTANCE
	.createYBeanValidationValidator();
	yValidator.setBvalClass(bvalClass);
	yValidator.setBvalClassFullyQualifiedName(bvalClassName);
	yValidator.setBvalProperty(yValidationConfig.getBvalProperty());
	editpart = getEditpart(config.getContext(), yValidator);
	editpart.setConfig(config);
	}
	return editpart;
	}

	/**
	* See {@link ElementEditpart#getEditpart(viewContext, YElement)}.
	*
	* @param <A>
	* the generic type
	* @param yValidator
	* the y validator
	* @return the editpart
	*/
	private static <A extends IValidatorEditpart> A getEditpart(IViewContext context,
	YElement yValidator) {
	return ElementEditpart.getEditpart(context, yValidator);
	}

	/**
	* Internal get validators delta.
	*
	* @param config
	* the config
	* @param bridge
	* the bridge
	* @param notification
	* the notification
	* @return the datatype editpart. validator delta
	*/
	public static DatatypeEditpart.ValidatorDelta internalGetValidatorsDelta(
	IValidationConfig config, DatatypeBridge bridge,
	Notification notification) {

	List<IValidatorEditpart> toAdd = new ArrayList<IValidatorEditpart>();
	List<IValidatorEditpart> toRemove = new ArrayList<IValidatorEditpart>();

	List<IValidatorEditpart> activeValidators = bridge
	.getDatatypeValidators();
	if (notification.getFeature() == ValidationPackage.Literals.YMAX_LENGTH_VALIDATION_CONFIG__MAX_LENGTH) {
	int oldValue = notification.getOldIntValue();
	int newValue = notification.getNewIntValue();

	if (oldValue <= 0 && newValue > 0) {
	toAdd.add(createMaxLengthValidator(config));
	} else if (oldValue > 0 && newValue <= 0) {
	toRemove.addAll(findToRemoveValidators(activeValidators,
	YMaxLengthValidator.class));
	} else {
	// nothing to do -> Other changes of attributes are handled by
	// the ValidationConfigToValidatorBridge
	}
	} else if (notification.getFeature() == ValidationPackage.Literals.YMIN_LENGTH_VALIDATION_CONFIG__MIN_LENGTH) {
	int oldValue = notification.getOldIntValue();
	int newValue = notification.getNewIntValue();

	if (oldValue <= 0 && newValue > 0) {
	toAdd.add(createMinLengthValidator(config));
	} else if (oldValue > 0 && newValue <= 0) {
	toRemove.addAll(findToRemoveValidators(activeValidators,
	YMinLengthValidator.class));
	} else {
	// nothing to do -> Other changes of attributes are handled by
	// the ValidationConfigToValidatorBridge
	}
	} else if (notification.getFeature() == ValidationPackage.Literals.YREGEXP_VALIDATION_CONFIG__REG_EXPRESSION) {
	String oldValue = notification.getOldStringValue();
	String newValue = notification.getNewStringValue();

	if (!RegexpValidatorEditpart.isValidRegExpression(oldValue)
	&& RegexpValidatorEditpart.isValidRegExpression(newValue)) {
	toAdd.add(createRegExpressionValidator(config));
	} else if (RegexpValidatorEditpart.isValidRegExpression(oldValue)
	&& !RegexpValidatorEditpart.isValidRegExpression(newValue)) {
	toRemove.addAll(findToRemoveValidators(activeValidators,
	YRegexpValidator.class));
	} else {
	// nothing to do -> Other changes of attributes are handled by
	// the ValidationConfigToValidatorBridge
	}
	} else if (notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_CLASS
	\|\| notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_CLASS_FULLY_QUALIFIED_NAME
	\|\| notification.getFeature() == ValidationPackage.Literals.YBEAN_VALIDATION_VALIDATOR_CONFIG__BVAL_PROPERTY) {
	LOGGER.error("Implement adding and removing BeanValidationValidators!");
	}

	return new DatatypeEditpart.ValidatorDelta(toAdd, toRemove);
	}

	/**
	* Tries to find all validators of the given type. Each validator of the
	* same type will then be removed.
	* <p>
	* Note: If we need detailed control of the validators to remove (for
	* instance only validators that have been created by this instance of
	* datatype editpart), then we have to add a "marker adapter" to the
	* prepared {@link YValidator}. This marker adapter will keep a reference to
	* this datatype editpart, and then we can separate validators that have
	* been added by different editparts. For now, there is no need for it.
	*
	* @param activeValidators
	* the active validators
	* @param clazz
	* the clazz
	* @return the list
	*/
	protected static List<IValidatorEditpart> findToRemoveValidators(
	List<IValidatorEditpart> activeValidators,
	Class<? extends YValidator> clazz) {
	List<IValidatorEditpart> toRemove = new ArrayList<IValidatorEditpart>();
	for (IValidatorEditpart editpart : activeValidators) {
	if (clazz.isAssignableFrom(editpart.getModel().getClass())) {
	toRemove.add(editpart);
	}
	}
	return toRemove;
	}

	/**
	* Collects all validators.
	*
	* @param config
	* the config
	* @return the all validators
	*/
	public static DatatypeEditpart.ValidatorDelta getAllValidators(
	IValidationConfig config) {

	List<IValidatorEditpart> toAdd = new ArrayList<IValidatorEditpart>();
	if (!(config.getValidationSettings() instanceof YValidationConfig)) {
	return new DatatypeEditpart.ValidatorDelta(toAdd, null);
	}

	YValidationConfig yValidationConfig = (YValidationConfig) config
	.getValidationSettings();
	if (yValidationConfig instanceof YMinLengthValidationConfig) {
	IMinLengthValidatorEditpart minLength = createMinLengthValidator(config);
	if (minLength != null) {
	toAdd.add(minLength);
	}
	}

	if (yValidationConfig instanceof YMaxLengthValidationConfig) {
	IMaxLengthValidatorEditpart maxLength = createMaxLengthValidator(config);
	if (maxLength != null) {
	toAdd.add(maxLength);
	}
	}

	if (yValidationConfig instanceof YRegexpValidationConfig) {
	IRegexpValidatorEditpart regexp = createRegExpressionValidator(config);
	if (regexp != null) {
	toAdd.add(regexp);
	}
	}

	if (yValidationConfig instanceof YBeanValidationValidatorConfig) {
	IBeanValidationValidatorEditpart beanVal = createBeanValidationValidator(config);
	if (beanVal != null) {
	toAdd.add(beanVal);
	}
	}

	return new DatatypeEditpart.ValidatorDelta(toAdd, null);
	}
	}