Java tutorial
/******************************************************************************* * Copyright (c) 2010 Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is 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: * Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.jboss.tools.cdi.ui.wizard; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.ArrayList; import java.util.List; import java.util.Set; import org.eclipse.core.runtime.IStatus; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IPackageFragmentRoot; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.internal.ui.dialogs.StatusInfo; import org.eclipse.jdt.internal.ui.dialogs.StatusUtil; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.widgets.Composite; import org.jboss.tools.cdi.core.CDIConstants; import org.jboss.tools.cdi.core.CDIUtil; import org.jboss.tools.cdi.core.ICDIAnnotation; import org.jboss.tools.cdi.core.ICDIProject; import org.jboss.tools.cdi.core.IInterceptorBinding; import org.jboss.tools.cdi.internal.core.validation.AnnotationValidationDelegate; import org.jboss.tools.cdi.ui.CDIUIMessages; import org.jboss.tools.cdi.ui.CDIUIPlugin; import org.jboss.tools.common.java.IAnnotationDeclaration; import org.jboss.tools.common.ui.widget.editor.ListFieldEditor; /** * * @author Viacheslav Kabanovich * */ public class NewInterceptorBindingWizardPage extends NewCDIAnnotationWizardPage { protected InterceptorBindingSelectionProvider interceptorBindingsProvider = new InterceptorBindingSelectionProvider(); protected ListFieldEditor interceptorBindings = null; protected StatusInfo targetStatus = new StatusInfo(); public NewInterceptorBindingWizardPage() { setTitle(CDIUIMessages.NEW_INTERCEPTOR_BINDING_WIZARD_PAGE_NAME); } protected void addAnnotations(ImportsManager imports, StringBuffer sb, String lineDelimiter) { addInterceptorBindingAnnotation(imports, sb, lineDelimiter); addInheritedAnnotation(imports, sb, lineDelimiter); addInterceptorBindingAnnotations(imports, sb, lineDelimiter); addTargetAnnotation(imports, sb, lineDelimiter, getTargets()); addRetentionAnnotation(imports, sb, lineDelimiter); addDocumentedAnnotation(imports, sb, lineDelimiter); } protected void addInterceptorBindingAnnotation(ImportsManager imports, StringBuffer sb, String lineDelimiter) { addAnnotation(CDIConstants.INTERCEPTOR_BINDING_ANNOTATION_TYPE_NAME, imports, sb, lineDelimiter); } @SuppressWarnings("unchecked") protected void addInterceptorBindingAnnotations(ImportsManager imports, StringBuffer sb, String lineDelimiter) { if (interceptorBindings != null) { List list = (List) interceptorBindings.getValue(); for (Object o : list) { if (o instanceof ICDIAnnotation) { ICDIAnnotation a = (ICDIAnnotation) o; String typeName = a.getSourceType().getFullyQualifiedName(); addAnnotation(typeName, imports, sb, lineDelimiter); } } } } @Override protected void createCustomFields(Composite composite) { createInheritedField(composite, true); createTargetField(composite); createInterceptorBindingField(composite); } protected void createTargetField(Composite composite) { List<String> targetOptions = new ArrayList<String>(); targetOptions.add("TYPE,METHOD"); targetOptions.add("TYPE"); createTargetField(composite, targetOptions); target.addPropertyChangeListener(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { validateTargetAndInterceptorBinding(); } }); } protected void createInterceptorBindingField(Composite composite) { interceptorBindings = new ListFieldEditor("interceptorBindings", CDIUIMessages.FIELD_EDITOR_INTERCEPTOR_BINDINGS_LABEL, new ArrayList<Object>()); interceptorBindings.setProvider(interceptorBindingsProvider); interceptorBindingsProvider.setEditorField(interceptorBindings); interceptorBindings.doFillIntoGrid(composite); setInterceptorBindings(getPackageFragmentRoot()); interceptorBindings.addPropertyChangeListener(new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { validateTargetAndInterceptorBinding(); } }); } public void setPackageFragmentRoot(IPackageFragmentRoot root, boolean canBeModified) { super.setPackageFragmentRoot(root, canBeModified); setInterceptorBindings(root); } void setInterceptorBindings(IPackageFragmentRoot root) { interceptorBindingsProvider.setProject(null); if (root != null) { IJavaProject jp = root.getJavaProject(); ICDIProject cdi = getCDIProject(jp); if (cdi != null) { interceptorBindingsProvider.setProject(cdi); } } } void validateTargetAndInterceptorBinding() { try { getTargetAndInterceptorBindingError(); } catch (JavaModelException e) { CDIUIPlugin.getDefault().logError(e); } doStatusUpdate(); } private void doStatusUpdate() { // status of all used components IStatus[] status = new IStatus[] { fContainerStatus, isEnclosingTypeSelected() ? fEnclosingTypeStatus : fPackageStatus, fTypeNameStatus, fModifierStatus, fSuperClassStatus, fSuperInterfacesStatus }; // the mode severe status will be displayed and the OK button enabled/disabled. updateStatus(status); } protected void updateStatus(IStatus[] status) { IStatus[] ns = new IStatus[status.length + 1]; System.arraycopy(status, 0, ns, 0, status.length); ns[status.length] = targetStatus; status = ns; updateStatus(StatusUtil.getMostSevere(status)); } void getTargetAndInterceptorBindingError() throws JavaModelException { targetStatus = new StatusInfo(); if (interceptorBindings != null && target != null) { String value = (String) target.getValue(); boolean hasMethodOrField = value != null && (value.indexOf(AnnotationValidationDelegate.TARGET_METHOD) >= 0 || value.indexOf(AnnotationValidationDelegate.TARGET_FIELD) >= 0); List list = (List) interceptorBindings.getValue(); for (Object o : list) { if (o instanceof IInterceptorBinding) { IInterceptorBinding a = (IInterceptorBinding) o; IAnnotationDeclaration target = a .getAnnotationDeclaration(CDIConstants.TARGET_ANNOTATION_TYPE_NAME); if (target != null) { Set<String> targets = CDIUtil.getTargetAnnotationValues(target); if (targets != null && targets.size() == 1 && targets.contains(AnnotationValidationDelegate.TARGET_TYPE) && hasMethodOrField) { String message = NLS.bind(CDIUIMessages.MESSAGE_INTERCEPTOR_BINDING_IS_NOT_COMPATIBLE, a.getSourceType().getElementName()); // String message = a.getSourceType().getElementName() + " annotated with @Target({TYPE}) is not compatible with target"; targetStatus.setWarning(message); } //targets always contain TYPE } } } } } public void addInterceptorBinding(IInterceptorBinding s) { List vs = (List) interceptorBindings.getValue(); List nvs = new ArrayList(); if (vs != null) nvs.addAll(vs); nvs.add(s); interceptorBindings.setValue(nvs); } }