diff options
Diffstat (limited to 'eclipselink/org.eclipse.emf.teneo.eclipselink.common.ui/src/org/eclipse/emf/teneo/eclipselink/common/ui/wizards/pages/AbstractRootObjectAndModelEditorPage.java')
| -rwxr-xr-x | eclipselink/org.eclipse.emf.teneo.eclipselink.common.ui/src/org/eclipse/emf/teneo/eclipselink/common/ui/wizards/pages/AbstractRootObjectAndModelEditorPage.java | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/eclipselink/org.eclipse.emf.teneo.eclipselink.common.ui/src/org/eclipse/emf/teneo/eclipselink/common/ui/wizards/pages/AbstractRootObjectAndModelEditorPage.java b/eclipselink/org.eclipse.emf.teneo.eclipselink.common.ui/src/org/eclipse/emf/teneo/eclipselink/common/ui/wizards/pages/AbstractRootObjectAndModelEditorPage.java new file mode 100755 index 000000000..df29a23f5 --- /dev/null +++ b/eclipselink/org.eclipse.emf.teneo.eclipselink.common.ui/src/org/eclipse/emf/teneo/eclipselink/common/ui/wizards/pages/AbstractRootObjectAndModelEditorPage.java @@ -0,0 +1,265 @@ +/******************************************************************************* + * Copyright (c) 2008 Oracle and Geensys. + * 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: + * Oracle and Geensys - initial API and implementation + *******************************************************************************/ +package org.eclipse.emf.teneo.eclipselink.common.ui.wizards.pages; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Map; + +import org.eclipse.core.resources.ResourcesPlugin; +import org.eclipse.core.runtime.CoreException; +import org.eclipse.core.runtime.IConfigurationElement; +import org.eclipse.core.runtime.IExtensionRegistry; +import org.eclipse.core.runtime.IStatus; +import org.eclipse.core.runtime.Platform; +import org.eclipse.core.runtime.QualifiedName; +import org.eclipse.core.runtime.Status; +import org.eclipse.emf.common.notify.AdapterFactory; +import org.eclipse.emf.common.util.EList; +import org.eclipse.emf.common.util.URI; +import org.eclipse.emf.ecore.EClass; +import org.eclipse.emf.ecore.EObject; +import org.eclipse.emf.ecore.EPackage; +import org.eclipse.emf.ecore.resource.Resource; +import org.eclipse.emf.ecore.resource.ResourceSet; +import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl; +import org.eclipse.emf.edit.provider.AdapterFactoryItemDelegator; +import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory; +import org.eclipse.emf.teneo.eclipselink.common.ui.Activator; +import org.eclipse.emf.teneo.eclipselink.common.ui.internal.messages.Messages; +import org.eclipse.emf.teneo.eclipselink.common.ui.preferencepages.IDatabasePreferenceConstants; +import org.eclipse.jface.wizard.WizardPage; +import org.eclipse.osgi.util.NLS; +import org.eclipse.swt.SWT; +import org.eclipse.swt.events.ModifyEvent; +import org.eclipse.swt.events.ModifyListener; +import org.eclipse.swt.layout.GridData; +import org.eclipse.swt.layout.GridLayout; +import org.eclipse.swt.widgets.Combo; +import org.eclipse.swt.widgets.Composite; +import org.eclipse.swt.widgets.Label; + +public abstract class AbstractRootObjectAndModelEditorPage extends WizardPage { + + protected static QualifiedName rootObjectName = new QualifiedName(Activator.getDefault().getBundle() + .getSymbolicName(), "rootObject"); //$NON-NLS-1$ + protected static QualifiedName editorIdName = new QualifiedName(Activator.getDefault().getBundle() + .getSymbolicName(), "editorId"); //$NON-NLS-1$ + + protected Combo rootObjectField; + protected Combo editorIdField; + + protected AdapterFactoryItemDelegator adapterFactoryItemDelegator; + protected List<EObject> rootObjectCandidates = new ArrayList<EObject>(); + + public AbstractRootObjectAndModelEditorPage(String pageName) { + super(pageName); + AdapterFactory adapterFactory = new ReflectiveItemProviderAdapterFactory(); + adapterFactoryItemDelegator = new AdapterFactoryItemDelegator(adapterFactory); + } + + public EObject getRootObject() { + EObject result = null; + for (EObject eObject : rootObjectCandidates) { + String name = adapterFactoryItemDelegator.getText(eObject); + if (name.equals(rootObjectField.getText())) { + result = eObject; + } + } + return result; + } + + public String getEditorId() { + return editorIdField.getText(); + } + + public void createControl(Composite parent) { + Composite composite = new Composite(parent, SWT.NONE); + composite.setLayout(new GridLayout(2, false)); + composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); + + new Label(composite, SWT.LEFT).setText(Messages.label_rootObject); + + rootObjectField = new Combo(composite, SWT.BORDER); + rootObjectField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); + rootObjectField.addModifyListener(new ModifyListener() { + public void modifyText(ModifyEvent e) { + setPageComplete(validatePage()); + + EObject rootObject = getRootObject(); + if (rootObject != null) { + URI uri = createDatabaseURI(getTypedPreviousPage().getPersistenceUnitName(), rootObject); + setMessage(NLS.bind(Messages.message_loadsModelFromDatabaseUsingURI$0, uri)); + } + } + }); + + new Label(composite, SWT.LEFT).setText(Messages.label_editorID); + + editorIdField = new Combo(composite, SWT.BORDER); + editorIdField.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); + initEditorIdField(); + editorIdField.addModifyListener(new ModifyListener() { + public void modifyText(ModifyEvent e) { + setPageComplete(validatePage()); + } + }); + + setPageComplete(validatePage()); + setControl(composite); + } + + @Override + public void setVisible(boolean visible) { + super.setVisible(visible); + if (visible) { + updateRootObjectField(); + } else { + persistWidgets(); + } + } + + @Override + public void dispose() { + persistWidgets(); + super.dispose(); + } + + protected void initEditorIdField() { + for (String editorId : getEditorIds()) { + editorIdField.add(editorId); + } + int index = 0; + try { + String lastEditorId = ResourcesPlugin.getWorkspace().getRoot().getPersistentProperty(editorIdName); + index = Arrays.asList(editorIdField.getItems()).indexOf(lastEditorId); + index = index != -1 ? index : 0; + } catch (CoreException cex) { + Activator.getDefault().getLog().log(cex.getStatus()); + } + editorIdField.select(index); + } + + protected void updateRootObjectField() { + rootObjectField.removeAll(); + + rootObjectCandidates = loadRootObjectCandidates(); + for (EObject eObject : rootObjectCandidates) { + String label = adapterFactoryItemDelegator.getText(eObject); + rootObjectField.add(label); + } + int index = 0; + try { + String lastRootObject = ResourcesPlugin.getWorkspace().getRoot().getPersistentProperty(rootObjectName); + index = Arrays.asList(rootObjectField.getItems()).indexOf(lastRootObject); + index = index != -1 ? index : 0; + } catch (CoreException cex) { + Activator.getDefault().getLog().log(cex.getStatus()); + } + rootObjectField.select(index); + } + + protected boolean validatePage() { + setErrorMessage(null); + if (isBlank(rootObjectField.getText())) { + setErrorMessage(Messages.error_rootObjectMissing); + return false; + } + if (!Arrays.asList(rootObjectField.getItems()).contains(rootObjectField.getText())) { + setErrorMessage(Messages.error_rootObjectMustBeExistingRootObjectCandidate); + return false; + } + if (isBlank(editorIdField.getText())) { + setErrorMessage(Messages.error_editorIDMissing); + return false; + } + if (!Arrays.asList(editorIdField.getItems()).contains(editorIdField.getText())) { + setErrorMessage(Messages.error_editorIDMustIdentifyExistingEditor); + return false; + } + return true; + } + + protected void persistWidgets() { + try { + ResourcesPlugin.getWorkspace().getRoot().setPersistentProperty(rootObjectName, rootObjectField.getText()); + ResourcesPlugin.getWorkspace().getRoot().setPersistentProperty(editorIdName, editorIdField.getText()); + } catch (CoreException cex) { + Activator.getDefault().getLog().log(cex.getStatus()); + } + } + + protected abstract URI createDatabaseURI(String persistenceUnitName, EClass eClass); + + protected abstract URI createDatabaseURI(String persistenceUnitName, EObject eObject); + + protected abstract Map<String, Object> getPersistenceUnitProperties(); + + protected abstract Map<String, Object> getDatabaseLoginOptionsFromPreviousPage(); + + protected boolean isBlank(String string) { + return string == null || string.trim().length() == 0; + } + + protected BasicModelAndDatabaseAccessParametersPage getTypedPreviousPage() { + return (BasicModelAndDatabaseAccessParametersPage) getPreviousPage(); + } + + protected List<EObject> loadRootObjectCandidates() { + List<EObject> result = new ArrayList<EObject>(); + EPackage ePackage = EPackage.Registry.INSTANCE.getEPackage(getTypedPreviousPage().getPackageNsURI()); + EClass eRootClass = (EClass) ePackage.getEClassifier(getTypedPreviousPage().getRootObjectTypeName()); + URI uri = createDatabaseURI(getTypedPreviousPage().getPersistenceUnitName(), eRootClass); + + ResourceSet resourceSet = new ResourceSetImpl(); + resourceSet.getLoadOptions().putAll(getPersistenceUnitProperties()); + if (IDatabasePreferenceConstants.USE_LOGIN_FROM_USER_PREFERENCES.equals(getTypedPreviousPage() + .getUseLoginFrom())) { + resourceSet.getLoadOptions().putAll(getDatabaseLoginOptionsFromPreviousPage()); + } + Resource resource = null; + try { + resource = resourceSet.getResource(uri, true); + EList<EObject> contents = resource.getContents(); + if (contents.size() > 0) { + result.addAll(contents); + } else { + setErrorMessage(NLS.bind(Messages.error_databaseContainsNo$0Objects, eRootClass.getName())); + } + } catch (Exception exception) { + setErrorMessage(Messages.error_failedToOpenDatabase); + Activator.getDefault().getLog().log( + new Status(IStatus.ERROR, Activator.PLUGIN_ID, exception.getMessage(), exception)); + } finally { + if (resource != null) { + resource.unload(); + } + } + + return result; + } + + protected List<String> getEditorIds() { + List<String> result = new ArrayList<String>(); + IExtensionRegistry registry = Platform.getExtensionRegistry(); + IConfigurationElement[] elements = registry.getConfigurationElementsFor("org.eclipse.ui.editors"); //$NON-NLS-1$ + if (elements != null) { + for (IConfigurationElement element : elements) { + String extensions = element.getAttribute("extensions"); //$NON-NLS-1$ + if (extensions != null && extensions.indexOf("database") != -1) { //$NON-NLS-1$ + result.add(element.getAttribute("id")); //$NON-NLS-1$ + } + } + } + return result; + } +} |