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/***********************************************************************
* Copyright (c) 2008 by SAP AG, Walldorf.
* 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:
* SAP AG - initial API and implementation
* Dimiter Dimitrov, d.dimitrov@sap.com - initial API and implementation
***********************************************************************/
package org.eclipse.jpt.ui.internal.wizards.entity.data.model;
import java.util.ArrayList;
import java.util.Set;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.core.JavaConventions;
import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
import org.eclipse.jpt.core.internal.resource.orm.OrmResourceModelProvider;
import org.eclipse.jpt.core.resource.orm.OrmResource;
import org.eclipse.jpt.ui.JptUiPlugin;
import org.eclipse.jpt.ui.internal.wizards.entity.EntityWizardMsg;
import org.eclipse.jpt.ui.internal.wizards.entity.data.operation.NewEntityClassOperation;
import org.eclipse.jst.j2ee.internal.common.J2EECommonMessages;
import org.eclipse.jst.j2ee.internal.common.operations.NewJavaClassDataModelProvider;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.frameworks.datamodel.IDataModelOperation;
import org.eclipse.wst.common.frameworks.internal.plugin.WTPCommonPlugin;
public class EntityDataModelProvider extends NewJavaClassDataModelProvider implements IEntityDataModelProperties{
@Override
public IDataModelOperation getDefaultOperation() {
return new NewEntityClassOperation(getDataModel());
}
/**
* Extends: <code>IDataModelProvider#getPropertyNames()</code>
* and add own data model's properties specific for the entity model
*
* @see org.eclipse.wst.common.frameworks.datamodel.IDataModelProvider#getPropertyNames()
*/
@Override
public Set getPropertyNames() {
Set propertyNames = super.getPropertyNames();
propertyNames.add(INHERITANCE);
propertyNames.add(ENTITY);
propertyNames.add(MAPPED_AS_SUPERCLASS);
propertyNames.add(INHERITANCE_STRATEGY);
propertyNames.add(XML_SUPPORT);
propertyNames.add(XML_NAME);
propertyNames.add(ENTITY_NAME);
propertyNames.add(TABLE_NAME_DEFAULT);
propertyNames.add(TABLE_NAME);
propertyNames.add(ENTITY_FIELDS);
propertyNames.add(PK_FIELDS);
propertyNames.add(FIELD_ACCESS_TYPE);
propertyNames.add(PROPERTY_ACCESS_TYPE);
return propertyNames;
}
/**
* Returns the default value of the parameter (which should present a valid data model property).
* This method does not accept a null parameter. It may return null.
*
* @see NewJavaClassDataModelProvider#getDefaultProperty(String)
* @see IDataModelProvider#getDefaultProperty(String)
*
* @param propertyName
* @return Object default value of property
*/
@Override
public Object getDefaultProperty(String propertyName) {
if (propertyName.equals(INHERITANCE)) {
return Boolean.FALSE;
} else if (propertyName.equals(ENTITY)) {
return Boolean.TRUE;
} else if (propertyName.equals(MAPPED_AS_SUPERCLASS)) {
return Boolean.FALSE;
} else if (propertyName.equals(XML_SUPPORT)) {
return Boolean.FALSE;
} else if (propertyName.equals(XML_NAME)) {
return EMPTY_STRING;
} else if (propertyName.equals(ENTITY_NAME)) {
return getStringProperty(CLASS_NAME);
} else if (propertyName.equals(TABLE_NAME_DEFAULT)) {
return Boolean.TRUE;
} else if (propertyName.equals(TABLE_NAME)) {
return getStringProperty(CLASS_NAME);
} else if (propertyName.equals(INHERITANCE_STRATEGY)) {
return EMPTY_STRING;
} else if (propertyName.equals(SUPERCLASS)) {
return EMPTY_STRING;
} else if (propertyName.equals(ENTITY_FIELDS)) {
return new ArrayList<EntityRow>();
} else if (propertyName.equals(PK_FIELDS)) {
return new ArrayList<String>();
} else if (propertyName.equals(FIELD_ACCESS_TYPE)) {
return Boolean.TRUE;
} else if (propertyName.equals(PROPERTY_ACCESS_TYPE)) {
return Boolean.FALSE;
}
// Otherwise check super for default value for property
return super.getDefaultProperty(propertyName);
}
@Override
public boolean propertySet(String propertyName, Object propertyValue) {
boolean ok = super.propertySet(propertyName, propertyValue);
if (propertyName.equals(PROJECT_NAME) || propertyName.equals(XML_SUPPORT)) {
this.model.notifyPropertyChange(XML_NAME, IDataModel.VALID_VALUES_CHG);
}
return ok;
}
/* Adds additional check to the model validation
* @see org.eclipse.jst.j2ee.internal.common.operations.NewJavaClassDataModelProvider#validate(java.lang.String)
*/
@Override
public IStatus validate(String propertyName) {
IStatus result = super.validate(propertyName);
if (propertyName.equals(JAVA_PACKAGE)) {
return validateJavaPackage(getStringProperty(propertyName));
}
if (propertyName.equals(SUPERCLASS) && EMPTY_STRING.equals(getStringProperty(propertyName))) {
return WTPCommonPlugin.OK_STATUS;
}
if (propertyName.equals(XML_NAME)) {
return validateXmlName(getStringProperty(propertyName));
}
if (propertyName.equals(ENTITY_FIELDS)) {
return validateFieldsList((ArrayList<EntityRow>) getProperty(propertyName));
}
return result;
}
/**
* This method is intended for internal use only. It will be used to validate the correctness of entity package
* in accordance with Java convention requirements. This method will accept a null parameter.
*
* @see NewFilterClassDataModelProvider#validate(String)
*
* @param packName
* @return IStatus is the package name satisfies Java convention requirements
*/
private IStatus validateJavaPackage(String packName) {
if (packName == null || packName.equals(EMPTY_STRING)) {
return WTPCommonPlugin.createWarningStatus(EntityWizardMsg.DEFAULT_PACKAGE_WARNING);
}
// Use standard java conventions to validate the package name
IStatus javaStatus = JavaConventions.validatePackageName(packName);
if (javaStatus.getSeverity() == IStatus.ERROR) {
String msg = J2EECommonMessages.ERR_JAVA_PACAKGE_NAME_INVALID + javaStatus.getMessage();
return WTPCommonPlugin.createErrorStatus(msg);
} else if (javaStatus.getSeverity() == IStatus.WARNING) {
String msg = J2EECommonMessages.ERR_JAVA_PACKAGE_NAME_WARNING + javaStatus.getMessage();
return WTPCommonPlugin.createWarningStatus(msg);
}
// java package name is valid
return WTPCommonPlugin.OK_STATUS;
}
/**
* This method is intended for internal use only. It will be used to validate
* the correctness of xml file location.
* This method will accept a null parameter.
*
* @see NewFilterClassDataModelProvider#validate(String)
*
* @param xmlName
* @return IStatus is the package name satisfies Java convention requirements
*/
private IStatus validateXmlName(String xmlName) {
if (getBooleanProperty(XML_SUPPORT)) {
String projectName = model.getStringProperty(PROJECT_NAME);
IProject project = ProjectUtilities.getProject(projectName);
if (project != null) {
OrmResourceModelProvider modelProvider = OrmResourceModelProvider.getModelProvider(project, xmlName);
OrmResource ormResource = modelProvider.getResource();
if (!ormResource.exists()) {
return new Status(
IStatus.ERROR, JptUiPlugin.PLUGIN_ID,
EntityWizardMsg.INVALID_XML_NAME);
}
}
}
return Status.OK_STATUS;
}
/**
* This method is intended for internal use only. It will be used to validate the entity fields
* list to ensure there are not any duplicates. This method will accept a null parameter.
*
* @see NewFilterClassDataModelProvider#validate(String)
*
* @param entities
* @return IStatus is the fields names are unique
*/
private IStatus validateFieldsList(ArrayList<EntityRow> entities) {
if (entities != null && !entities.isEmpty()) {
// Ensure there are not duplicate entries in the list
boolean dup = hasDuplicatesInEntityFields(entities);
if (dup) {
String msg = EntityWizardMsg.DUPLICATED_ENTITY_NAMES_MESSAGE;
return WTPCommonPlugin.createErrorStatus(msg);
}
}
// Return OK
return WTPCommonPlugin.OK_STATUS;
}
/**
* This method is intended for internal use only. It provides a simple algorithm for detecting
* if there are duplicate entries in a list. It will accept a null parameter. It will return
* boolean.
*
* @param input
* @return boolean are there duplications in the list
*/
private boolean hasDuplicatesInEntityFields(ArrayList<EntityRow> input) {
if (input == null) {
return false;
}
int n = input.size();
// nested for loops to check each element to see if other elements are the same
for (int i = 0; i < n; i++) {
EntityRow entity = input.get(i);
for (int j = i + 1; j < n; j++) {
EntityRow intEntity = input.get(j);
if (intEntity.getName().equals(entity.getName())) {
return true;
}
}
}
return false;
}
}
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