Java tutorial
/*********************************************************************** * 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 ***********************************************************************/ package org.eclipse.jst.jee.ui.internal.navigator; import java.util.List; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.content.IContentType; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.jdt.core.ICompilationUnit; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.internal.ui.javaeditor.EditorUtility; import org.eclipse.jdt.ui.JavaUI; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.TreePath; import org.eclipse.jface.viewers.TreeSelection; import org.eclipse.jst.j2ee.commonarchivecore.internal.ModuleFile; import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveOptions; import org.eclipse.jst.j2ee.commonarchivecore.internal.util.ArchiveUtil; import org.eclipse.jst.j2ee.internal.J2EEConstants; import org.eclipse.jst.j2ee.internal.actions.AbstractOpenAction; import org.eclipse.jst.j2ee.internal.actions.ComponentEditorInput; import org.eclipse.jst.j2ee.internal.archive.JavaEEArchiveUtilities; import org.eclipse.jst.j2ee.internal.componentcore.ComponentArchiveOptions; import org.eclipse.jst.j2ee.internal.ejb.provider.J2EEJavaClassProviderHelper; import org.eclipse.jst.j2ee.internal.plugin.J2EEUIMessages; import org.eclipse.jst.j2ee.model.ModelProviderManager; import org.eclipse.jst.j2ee.webservice.wsdd.BeanLink; import org.eclipse.jst.javaee.core.EjbLocalRef; import org.eclipse.jst.javaee.core.JavaEEObject; import org.eclipse.jst.javaee.core.Listener; import org.eclipse.jst.javaee.core.ResourceRef; import org.eclipse.jst.javaee.core.internal.impl.EjbLocalRefImpl; import org.eclipse.jst.javaee.core.internal.impl.ResourceRefImpl; import org.eclipse.jst.javaee.ejb.EJBJar; import org.eclipse.jst.javaee.ejb.EntityBean; import org.eclipse.jst.javaee.ejb.MessageDrivenBean; import org.eclipse.jst.javaee.ejb.SessionBean; import org.eclipse.jst.javaee.web.Filter; import org.eclipse.jst.javaee.web.Servlet; import org.eclipse.jst.jee.archive.IArchive; import org.eclipse.jst.jee.ui.internal.navigator.appclient.GroupAppClientProvider; import org.eclipse.jst.jee.ui.internal.navigator.ear.GroupEARProvider; import org.eclipse.jst.jee.ui.internal.navigator.ejb.BeanInterfaceNode; import org.eclipse.jst.jee.ui.internal.navigator.ejb.BeanNode; import org.eclipse.jst.jee.ui.internal.navigator.ejb.GroupEJBProvider; import org.eclipse.jst.jee.ui.internal.navigator.ra.RaGroupContentProvider; import org.eclipse.jst.jee.ui.internal.navigator.web.WebAppProvider; import org.eclipse.jst.jee.ui.internal.navigator.web.WebArtifactNode; import org.eclipse.jst.jee.ui.plugin.JEEUIPlugin; import org.eclipse.ui.IEditorDescriptor; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.IEditorRegistry; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.ide.IDE; import org.eclipse.ui.part.FileEditorInput; import org.eclipse.ui.part.ISetSelectionTarget; import org.eclipse.wst.common.componentcore.resources.IVirtualComponent; import org.eclipse.wst.common.internal.emfworkbench.WorkbenchResourceHelper; /** * Open Action for Deployment descriptor tree nodes. * * @author Dimitar Giormov * */ public class OpenJEEResourceAction extends AbstractOpenAction { public static final String ID = "com.sap.ide.j2ee.ui.actions.OpenJEEResourceAction"; //$NON-NLS-1$ public static final String JAVA_EDITOR_ID = "org.eclipse.jst.j2ee.internal.internal.ejb.ui.java.EnterpriseBeanJavaEditor"; //$NON-NLS-1$ public static final String BASE_JAVA_EDITOR_ID = "org.eclipse.jdt.ui.CompilationUnitEditor"; //$NON-NLS-1$ protected static IEditorDescriptor javaEditorDescriptor; protected static IEditorDescriptor baseJavaEditorDescriptor; /** * Create an instance of this class */ public OpenJEEResourceAction() { super("Open"); //$NON-NLS-1$ } /** * Returns the action ID. */ public String getID() { return ID; } public static IEditorDescriptor getJavaEditorDescriptor() { if (javaEditorDescriptor == null) javaEditorDescriptor = findEditorDescriptor(JAVA_EDITOR_ID); return javaEditorDescriptor; } public static IEditorDescriptor getBaseJavaEditorDescriptor() { if (baseJavaEditorDescriptor == null) baseJavaEditorDescriptor = findEditorDescriptor(BASE_JAVA_EDITOR_ID); return baseJavaEditorDescriptor; } protected void openAppropriateEditor(String c) { if (getStructuredSelection() instanceof TreeSelection) { TreePath path = ((TreeSelection) getStructuredSelection()).getPaths()[0]; IProject project = null; while (path != null) { Object segment = path.getLastSegment(); if (segment instanceof IProject) { project = (IProject) segment; break; } path = path.getParentPath(); } if (project != null) { try { IType findType = JavaCore.create(project).findType(c); if (findType == null) { return; } openAppropriateEditor(findType.getResource()); } catch (JavaModelException e) { JEEUIPlugin.logError("Error during open editor", e); //$NON-NLS-1$ } } } } protected void openAppropriateEditor(IVirtualComponent c) { if (c == null) { return; } IWorkbenchPage page = null; IEditorPart editor = null; try { page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); editor = page.openEditor(new ComponentEditorInput(c), currentDescriptor.getId()); if (editor instanceof ISetSelectionTarget) ((ISetSelectionTarget) editor).selectReveal(getStructuredSelection()); } catch (Exception e) { MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), J2EEUIMessages.getResourceString("Problems_Opening_Editor_ERROR_"), e.getMessage()); //$NON-NLS-1$ = "Problems Opening Editor" } } protected void openAppropriateEditor(IJavaElement element) { if (element == null) { return; } try { JavaUI.openInEditor(element); } catch (Exception e) { MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), J2EEUIMessages.getResourceString("Problems_Opening_Editor_ERROR_"), e.getMessage()); //$NON-NLS-1$ = "Problems Opening Editor" } } /** * open the appropriate editor */ protected void openAppropriateEditor(IResource r) { if (r == null) return; IWorkbenchPage page = null; IEditorPart editor = null; try { page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); String ID = PlatformUI.getWorkbench().getEditorRegistry() .getDefaultEditor(r.getLocation().toPortableString()).getId(); editor = page.openEditor(new FileEditorInput((IFile) r), ID); if (editor instanceof ISetSelectionTarget) ((ISetSelectionTarget) editor).selectReveal(getStructuredSelection()); } catch (Exception e) { MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), J2EEUIMessages.getResourceString("Problems_Opening_Editor_ERROR_"), e.getMessage()); //$NON-NLS-1$ = "Problems Opening Editor" } } /** * The user has invoked this action */ @Override public void run() { if (!isEnabled()) return; if (srcObject instanceof J2EEJavaClassProviderHelper) { ((J2EEJavaClassProviderHelper) srcObject).openInEditor(); return; } //[Bug 240512] deal with if any of these node types ndo not have an associated class if (srcObject instanceof SessionBean || srcObject instanceof MessageDrivenBean || srcObject instanceof EntityBean || srcObject instanceof Servlet || srcObject instanceof Filter || srcObject instanceof Listener) { String name = ""; //$NON-NLS-1$ if (srcObject instanceof SessionBean) { SessionBean bean = (SessionBean) srcObject; name = bean.getEjbClass(); } else if (srcObject instanceof MessageDrivenBean) { MessageDrivenBean bean = (MessageDrivenBean) srcObject; name = bean.getEjbClass(); } else if (srcObject instanceof EntityBean) { EntityBean bean = (EntityBean) srcObject; name = bean.getEjbClass(); } else if (srcObject instanceof Servlet) { Servlet servlet = (Servlet) srcObject; name = servlet.getServletClass(); } else if (srcObject instanceof Filter) { Filter filter = (Filter) srcObject; name = filter.getFilterClass(); } else if (srcObject instanceof Listener) { Listener listener = (Listener) srcObject; name = listener.getListenerClass(); } IResource resource = WorkbenchResourceHelper.getFile((EObject) srcObject); if (resource == null) return; IProject project = resource.getProject(); IJavaProject javaProject = JavaCore.create(project); if (javaProject.exists()) { IType type = null; try { //if name is null then can't get type if (name != null) { type = javaProject.findType(name); } //if type is null then can't open its editor, so open editor for the resource if (type != null) { ICompilationUnit cu = type.getCompilationUnit(); if (cu != null) { EditorUtility.openInEditor(cu); } else { EditorUtility.openInEditor(type); } } else { openAppropriateEditor(resource); } } catch (JavaModelException e) { JEEUIPlugin.logError(e.getMessage(), e); } catch (PartInitException e) { JEEUIPlugin.logError(e.getMessage(), e); } } return; } if (srcObject instanceof EObject) { if (srcObject instanceof EjbLocalRefImpl || srcObject instanceof ResourceRefImpl) { IResource resource = WorkbenchResourceHelper.getFile((EObject) srcObject); if (resource == null) { openEObject((EObject) srcObject); return; } IProject project = resource.getProject(); EJBJar ejbJar = (EJBJar) ModelProviderManager.getModelProvider(project) .getModelObject(new Path(J2EEConstants.EJBJAR_DD_URI)); if (srcObject instanceof EjbLocalRefImpl) { openEjbLocalRefNode(resource, ejbJar); } else if (srcObject instanceof ResourceRefImpl) { openResourceRefNode(resource, ejbJar); } } else { openEObject((EObject) srcObject); } } else if (srcObject instanceof BeanInterfaceNode) { openAppropriateEditor(((BeanInterfaceNode) srcObject).get_fqn()); return; } else if (srcObject instanceof BeanNode) { openAppropriateEditor(((BeanNode) srcObject).getEjbClassQualifiedName()); return; } else if (srcObject instanceof WebAppProvider) { IFile file = ((WebAppProvider) srcObject).getDDFile(); if (file.isAccessible()) { openAppropriateEditor(file); return; } } else if (srcObject instanceof WebArtifactNode) { openEObject((EObject) ((WebArtifactNode) srcObject).getJavaEEObject()); } else if (srcObject instanceof GroupEJBProvider) { openEObject((EObject) ((GroupEJBProvider) srcObject).getEjbJar()); } else if (srcObject instanceof GroupEARProvider) { IFile file = ((GroupEARProvider) srcObject).getDDFile(); if (file.isAccessible()) { openAppropriateEditor(file); return; } } else if (srcObject instanceof GroupAppClientProvider) { IFile file = ((GroupAppClientProvider) srcObject).getDDFile(); if (file.isAccessible()) { openAppropriateEditor(file); return; } } else if (srcObject instanceof AbstractGroupProvider) { openEObject((EObject) ((AbstractGroupProvider) srcObject).getJavaEEObject()); } else if (srcObject instanceof Resource) openAppropriateEditor(WorkbenchResourceHelper.getFile((Resource) srcObject)); } private void openResourceRefNode(IResource resource, EJBJar ejbJar) { if (ejbJar.getEnterpriseBeans() != null) { List<SessionBean> beans = ejbJar.getEnterpriseBeans().getSessionBeans(); for (SessionBean bean : beans) { for (ResourceRef localref : bean.getResourceRefs()) { if (localref.getResRefName().equals(((ResourceRef) srcObject).getResRefName())) { openAppropriateEditor(resource); return; } } } } if (((ResourceRefImpl) srcObject).eContainer() instanceof SessionBean) { openAppropriateEditor(((SessionBean) (((ResourceRefImpl) srcObject).eContainer())).getEjbClass()); return; } } private void openEjbLocalRefNode(IResource resource, EJBJar ejbJar) { if (ejbJar.getEnterpriseBeans() != null) { List<SessionBean> beans = ejbJar.getEnterpriseBeans().getSessionBeans(); for (SessionBean bean : beans) { for (EjbLocalRef localref : bean.getEjbLocalRefs()) { if (localref.getEjbRefName().equals(((EjbLocalRef) srcObject).getEjbRefName())) { openAppropriateEditor(resource); return; } } } } if (((EjbLocalRefImpl) srcObject).eContainer() instanceof SessionBean) { openAppropriateEditor(((SessionBean) (((EjbLocalRefImpl) srcObject).eContainer())).getEjbClass()); return; } } private void openEObject(EObject _srcObject) { EObject ro = _srcObject; IResource resource = WorkbenchResourceHelper.getFile(_srcObject); if (resource != null) { openAppropriateEditor(resource); } else { ModuleFile moduleFile = ArchiveUtil.getModuleFile(ro); if (moduleFile != null) { ArchiveOptions options = moduleFile.getOptions(); if (options instanceof ComponentArchiveOptions) { IVirtualComponent component = ((ComponentArchiveOptions) options).getComponent(); openAppropriateEditor(component); } } else { IArchive archive = JavaEEArchiveUtilities.findArchive(ro); if (archive != null) { IVirtualComponent component = JavaEEArchiveUtilities.findComponent(archive); if (component != null) { openAppropriateEditor(component); } } } } } /** * The structured selection has changed in the workbench. Subclasses should * override this method to react to the change. Returns true if the action * should be enabled for this selection, and false otherwise. * * When this method is overridden, the super method must always be invoked. * If the super method returns false, this method must also return false. * * @param sel * the new structured selection */ @Override public boolean updateSelection(IStructuredSelection s) { if (!super.updateSelection(s)) return false; // Make sure this is one of the selections we can handle, // then set the source object as is. The run() will do the hard stuff. Object obj = s.getFirstElement(); setText("Open"); //$NON-NLS-1$ if (obj instanceof J2EEJavaClassProviderHelper) currentDescriptor = getJavaEditorDescriptor(); else if (obj instanceof BeanLink) currentDescriptor = getBaseJavaEditorDescriptor(); else if (obj instanceof EObject) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IFile file = WorkbenchResourceHelper.getFile((EObject) obj); if (file != null) { IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { if (((EObject) obj).eResource() != null) { String name = (new Path(((EObject) obj).eResource().getURI().toString())).lastSegment(); currentDescriptor = registry.getDefaultEditor(name, null); } } } else if (obj instanceof Resource) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IFile file = WorkbenchResourceHelper.getFile((Resource) obj); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else if (obj instanceof GroupEARProvider) { IFile file = ((GroupEARProvider) obj).getDDFile(); if (file.isAccessible()) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { currentDescriptor = null; return false; } } else if (obj instanceof GroupEJBProvider) { IFile file = WorkbenchResourceHelper.getFile((EObject) ((GroupEJBProvider) obj).getEjbJar()); if (file.isAccessible()) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { currentDescriptor = null; return false; } } else if (obj instanceof GroupAppClientProvider) { IFile file = ((GroupAppClientProvider) obj).getDDFile(); if (file.isAccessible()) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { currentDescriptor = null; return false; } } else if (obj instanceof WebAppProvider) { IFile file = ((WebAppProvider) obj).getDDFile(); if (file.isAccessible()) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { currentDescriptor = null; return false; } } else if (obj instanceof RaGroupContentProvider) { IFile file = WorkbenchResourceHelper.getFile((EObject) ((AbstractGroupProvider) obj).getJavaEEObject()); if (file.isAccessible()) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { currentDescriptor = null; return false; } } else if (obj instanceof BeanNode) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); JavaEEObject enterpriseBean = ((BeanNode) obj).getEnterpriseBean(); IFile file = WorkbenchResourceHelper.getFile((EObject) enterpriseBean); if (file != null) { IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { if (((EObject) enterpriseBean).eResource() != null) { String name = (new Path(((EObject) enterpriseBean).eResource().getURI().toString())) .lastSegment(); currentDescriptor = registry.getDefaultEditor(name, null); } } } else if (obj instanceof BeanInterfaceNode) { IEditorRegistry registry = PlatformUI.getWorkbench().getEditorRegistry(); JavaEEObject beanInterface = (JavaEEObject) ((BeanInterfaceNode) obj).getAdapterNode(); IFile file = WorkbenchResourceHelper.getFile((EObject) beanInterface); if (file != null) { IContentType contentType = IDE.getContentType(file); currentDescriptor = registry.getDefaultEditor(file.getName(), contentType); } else { if (((EObject) beanInterface).eResource() != null) { String name = (new Path(((EObject) beanInterface).eResource().getURI().toString())) .lastSegment(); currentDescriptor = registry.getDefaultEditor(name, null); } else { String fqn = ((BeanInterfaceNode) obj).get_fqn(); if (fqn != null) { currentDescriptor = registry.getDefaultEditor(((BeanInterfaceNode) obj).getText(), null); // return true; } else { return false; } } } } setAttributesFromDescriptor(); srcObject = obj; return true; } }