/*******************************************************************************
* 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 org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.IBuffer;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.ISourceRange;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.formatter.CodeFormatter;
import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
import org.eclipse.jdt.internal.ui.dialogs.StatusUtil;
import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings;
import org.eclipse.jdt.ui.CodeGeneration;
import org.eclipse.jdt.ui.wizards.NewClassWizardPage;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.PlatformUI;
import org.jboss.tools.cdi.core.CDIConstants;
import org.jboss.tools.cdi.core.CDICorePlugin;
import org.jboss.tools.cdi.core.CDIImages;
import org.jboss.tools.cdi.ui.CDIUIMessages;
import org.jboss.tools.cdi.xml.beans.model.CDIBeansConstants;
import org.jboss.tools.common.java.generation.JavaBeanGenerator;
import org.jboss.tools.common.ui.widget.editor.CompositeEditor;
import org.jboss.tools.common.ui.widget.editor.IFieldEditor;
import org.jboss.tools.common.ui.widget.editor.IFieldEditorFactory;
import org.jboss.tools.common.ui.widget.editor.LabelFieldEditor;
/**
*
* @author Viacheslav Kabanovich
*
*/
public class NewDecoratorWizardPage extends NewClassWizardPage {
protected InterceptorBindingSelectionProvider interceptorBindingsProvider = new InterceptorBindingSelectionProvider();
IFieldEditor fieldName = null;
String defaultTypeName = null;
String defaultFieldName = null;
protected StatusInfo fieldNameStatus = new StatusInfo();
protected boolean mayBeRegisteredInBeansXML = true;
protected BeansXMLAccess registerInBeansXML = new BeansXMLAccess(this, "Decorators", CDIBeansConstants.ENT_CDI_CLASS, CDIBeansConstants.ATTR_CLASS);
public NewDecoratorWizardPage() {
setTitle(CDIUIMessages.NEW_DECORATOR_WIZARD_PAGE_NAME);
setDescription(CDIUIMessages.NEW_DECORATOR_WIZARD_DESCRIPTION);
setImageDescriptor(CDIImages.getImageDescriptor(CDIImages.CDI_CLASS_IMAGE));
}
public void setMayBeRegisteredInBeansXML(boolean b) {
mayBeRegisteredInBeansXML = b;
}
public void init(IStructuredSelection selection) {
super.init(selection);
defaultTypeName = null;
defaultFieldName = null;
if (selection != null && !selection.isEmpty()) {
Object o = selection.iterator().next();
IType type = null;
if (o instanceof IType) {
type = (IType) o;
} else if (o instanceof ICompilationUnit) {
ICompilationUnit cu = (ICompilationUnit) o;
try {
IType[] ts = cu.getTypes();
if (ts != null && ts.length > 0)
type = ts[0];
} catch (JavaModelException e) {
CDICorePlugin.getDefault().logError(e);
}
}
boolean isInterface = false;
try {
isInterface = type != null && type.isInterface();
} catch (JavaModelException e) {
CDICorePlugin.getDefault().logError(e);
}
if (isInterface) {
ArrayList<String> interfacesNames = new ArrayList<String>();
String name = "";
try {
name = type.getFullyQualifiedParameterizedName();
} catch (JavaModelException e) {
name = type.getFullyQualifiedName();
}
interfacesNames.add(name);
setSuperInterfaces(interfacesNames, true);
superInterfacesChanged();
setDefaultTypeName(name);
}
}
setModifiers(getModifiers() | Flags.AccAbstract, true);
doStatusUpdate();
}
void setDefaultTypeName(String interfaceName) {
int d = interfaceName.lastIndexOf('.');
int b = interfaceName.indexOf('<');
if (b < 0)
b = interfaceName.length();
String elementName = interfaceName.substring(d + 1, b);
String typeName = elementName + "Decorator";
typeName += interfaceName.substring(b);
String currentTypeName = getTypeName();
boolean isDefault = currentTypeName == null || currentTypeName.length() == 0 || currentTypeName.equals(defaultTypeName);
if(isDefault) {
setTypeName(typeName, true);
typeNameChanged();
}
defaultTypeName = typeName;
String _defaultFieldName = elementName;
if(_defaultFieldName.length() > 0) {
_defaultFieldName = _defaultFieldName.substring(0, 1).toLowerCase() + _defaultFieldName.substring(1);
if(fieldName != null) {
String currentFieldName = fieldName.getValueAsString();
isDefault = currentFieldName == null || currentFieldName.length() == 0 || currentFieldName.equals(defaultFieldName);
if(isDefault) {
fieldName.setValue(_defaultFieldName);
}
defaultFieldName = _defaultFieldName;
}
}
}
public void createControl(Composite parent) {
initializeDialogUnits(parent);
Composite composite = new Composite(parent, SWT.NONE);
composite.setFont(parent.getFont());
int nColumns = 4;
GridLayout layout = new GridLayout();
layout.numColumns = nColumns;
composite.setLayout(layout);
// pick & choose the wanted UI components
createContainerControls(composite, nColumns);
createPackageControls(composite, nColumns);
// createEnclosingTypeControls(composite, nColumns);
createSeparator(composite, nColumns);
createTypeNameControls(composite, nColumns);
createModifierControls(composite, nColumns);
// createSuperClassControls(composite, nColumns);
createSuperInterfacesControls(composite, nColumns);
// createMethodStubSelectionControls(composite, nColumns);
createCustomFields(composite);
createCommentControls(composite, nColumns);
enableCommentControl(true);
setControl(composite);
Dialog.applyDialogFont(composite);
PlatformUI.getWorkbench().getHelpSystem()
.setHelp(composite, IJavaHelpContextIds.NEW_CLASS_WIZARD_PAGE);
// onInterceptorBindingChange();
doStatusUpdate();
}
protected void createTypeMembers(IType newType,
final ImportsManager imports, IProgressMonitor monitor)
throws CoreException {
createInheritedMethods(newType, true, true, imports,
new SubProgressMonitor(monitor, 1));
ISourceRange range = newType.getSourceRange();
IBuffer buf = newType.getCompilationUnit().getBuffer();
String lineDelimiter = StubUtility.getLineDelimiterUsed(newType
.getJavaProject());
StringBuffer sb = new StringBuffer();
addAnnotations(imports, sb, lineDelimiter);
buf.replace(range.getOffset(), 0, sb.toString());
createDelegateField(newType, imports, monitor, lineDelimiter);
modifyMethodContent(newType, imports, monitor, lineDelimiter);
}
void addAnnotations(ImportsManager imports, StringBuffer sb,
String lineDelimiter) {
addDecoratorAnnotation(imports, sb, lineDelimiter);
}
protected void addDecoratorAnnotation(ImportsManager imports,
StringBuffer sb, String lineDelimiter) {
NewCDIAnnotationWizardPage.addAnnotation(
CDIConstants.DECORATOR_STEREOTYPE_TYPE_NAME, imports, sb,
lineDelimiter);
}
protected void createCustomFields(Composite composite) {
createFieldNameField(composite);
createRegisterInBeansXML(composite);
}
protected void createFieldNameField(Composite composite) {
String label = "Delegate Field Name:";
List is = getSuperInterfaces();
String defaultFieldName = "";
if (is != null && !is.isEmpty()) {
defaultFieldName = is.get(0).toString();
int i = defaultFieldName.lastIndexOf('.');
if (i >= 0)
defaultFieldName = defaultFieldName.substring(i + 1);
if (defaultFieldName.length() > 0) {
defaultFieldName = defaultFieldName.substring(0, 1)
.toLowerCase() + defaultFieldName.substring(1);
}
i = defaultFieldName.indexOf('<');
if (i >= 0) {
defaultFieldName = defaultFieldName.substring(0, i);
}
}
fieldName = IFieldEditorFactory.INSTANCE.createTextEditor("fieldName",
label, defaultFieldName);
((CompositeEditor) fieldName)
.addFieldEditors(new IFieldEditor[] { new LabelFieldEditor(
"fieldName", "") });
fieldName.doFillIntoGrid(composite);
fieldName.addPropertyChangeListener(new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
onFieldNameChange();
doStatusUpdate();
}
});
}
void onFieldNameChange() {
String methodName = this.fieldName.getValueAsString();
fieldNameStatus = new StatusInfo();
if (methodName.length() == 0) {
fieldNameStatus.setError(CDIUIMessages.MESSAGE_FIELD_NAME_EMPTY);
return;
}
IStatus val = JavaConventionsUtil.validateMethodName(methodName, null);
if (val != null && val.getSeverity() == IStatus.ERROR) {
fieldNameStatus.setError(NLS.bind(
CDIUIMessages.MESSAGE_FIELD_NAME_NOT_VALID,
val.getMessage()));
}
}
protected void createRegisterInBeansXML(Composite composite) {
if(!mayBeRegisteredInBeansXML) return;
registerInBeansXML.create(composite);
}
protected IField createDelegateField(IType type, ImportsManager imports,
IProgressMonitor monitor, String lineDelimiter)
throws CoreException {
String fieldName = "" + this.fieldName.getValue();
imports.addImport("javax.interceptor.InvocationContext");
imports.addImport("javax.interceptor.AroundInvoke");
imports.addImport(CDIConstants.INJECT_ANNOTATION_TYPE_NAME);
imports.addImport(CDIConstants.ANY_QUALIFIER_TYPE_NAME);
imports.addImport(CDIConstants.DELEGATE_STEREOTYPE_TYPE_NAME);
ICompilationUnit cu = type.getCompilationUnit();
JavaModelUtil.reconcile(cu);
CodeGenerationSettings settings = JavaPreferencesSettings
.getCodeGenerationSettings(type.getJavaProject());
settings.createComments = isAddComments();
String access = "private";
String javatype = "Object";
List is = getSuperInterfaces();
if (is != null)
for (int i = 0; i < is.size(); i++) {
String in = is.get(i).toString();
int d = in.lastIndexOf('.');
if (d >= 0)
in = in.substring(d + 1);
javatype = in;
break;
}
String fieldHeader = "@Inject @Delegate @Any " + access + " " + javatype + " " + fieldName + ";" + lineDelimiter; //$NON-NLS-1$ //$NON-NLS-2$
IJavaElement[] cs = type.getChildren();
IJavaElement sibling = cs == null || cs.length == 0 ? null : cs[0];
IField m = type.createField(fieldHeader, sibling, true, null);
editField(cu, m, javatype, fieldHeader, lineDelimiter);
return m;
}
void editField(ICompilationUnit cu, IField m, String javatype, String fieldHeader,
String lineDelimiter) throws CoreException {
synchronized (cu) {
cu.reconcile(ICompilationUnit.NO_AST, true, null, null);
}
ISourceRange range = m.getSourceRange();
IBuffer buf = cu.getBuffer();
StringBuffer sb = new StringBuffer(lineDelimiter);
if (isAddComments()) {
String fieldComment = CodeGeneration.getFieldComment(cu,
javatype, m.getElementName(), lineDelimiter);
sb.append(fieldComment).append(lineDelimiter);
}
sb.append(fieldHeader);
String formattedContent = JavaBeanGenerator.codeFormat2(
CodeFormatter.K_CLASS_BODY_DECLARATIONS, sb.toString(), 1,
lineDelimiter, cu.getJavaProject());
if (formattedContent != null && formattedContent.startsWith("\t")) { //$NON-NLS-1$
formattedContent = formattedContent.substring(1);
}
buf.replace(range.getOffset(), range.getLength(), formattedContent);
}
protected IStatus superInterfacesChanged() {
List list = getSuperInterfaces();
if(list != null && !list.isEmpty()) {
setDefaultTypeName(list.get(0).toString());
}
StatusInfo result = (StatusInfo) super.superInterfacesChanged();
if (!result.isError()) {
if (list == null || list.isEmpty()) {
result.setError("Please select decorated type.");
}
}
return result;
}
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) {
if(!CDIUIMessages.NEW_DECORATOR_WIZARD_DESCRIPTION.equals(getDescription())) {
setDescription(CDIUIMessages.NEW_DECORATOR_WIZARD_DESCRIPTION);
}
IStatus[] ns = new IStatus[status.length + 1];
System.arraycopy(status, 0, ns, 0, status.length);
ns[status.length] = fieldNameStatus;
status = ns;
updateStatus(StatusUtil.getMostSevere(status));
}
protected void modifyMethodContent(IType type, ImportsManager imports,
IProgressMonitor monitor, String lineDelimiter) throws CoreException {
IMethod[] ms = type.getMethods();
for (int i = 0; i < ms.length; i++) {
if(ms[i].isConstructor()) continue;
ICompilationUnit cu = type.getCompilationUnit();
synchronized (cu) {
cu.reconcile(ICompilationUnit.NO_AST, true, null, null);
}
IBuffer buf = cu.getBuffer();
ISourceRange range = ms[i].getSourceRange();
int start = -1;
int end = -1;
StringBuffer sb = new StringBuffer();
if("void".equals(ms[i].getReturnType()) || "V".equals(ms[i].getReturnType())) {
end = buf.getContents().indexOf("}", range.getOffset());
if(end < 0) continue;
end = buf.getContents().lastIndexOf(lineDelimiter, end);
if(end < 0 || end < range.getOffset()) continue;
// end += lineDelimiter.length();
start = end;
} else {
start = buf.getContents().indexOf("return", range.getOffset());
if(start < 0 || start > range.getOffset() + range.getLength()) continue;
start += 7;
end = buf.getContents().indexOf(";", start);
if(end < 0) continue;
end++;
}
String fieldName = "" + this.fieldName.getValue();
String methodName = ms[i].getElementName();
String[] ps = ms[i].getParameterNames();
sb.append(fieldName).append('.').append(methodName).append('(');
for (int k = 0; k < ps.length; k++) {
if(k > 0) sb.append(", ");
sb.append(ps[k]);
}
sb.append(");");
buf.replace(start, end - start, sb.toString());
}
}
public boolean isToBeRegisteredInBeansXML() {
return registerInBeansXML.isSelected();
}
@Override
public void setVisible(boolean visible) {
if(!getControl().isVisible() && visible && fSuperInterfacesStatus.matches(IStatus.ERROR) && !fTypeNameStatus.matches(IStatus.ERROR)) {
setDescription(fSuperInterfacesStatus.getMessage());
}
super.setVisible(visible);
}
protected String getSuperInterfacesLabel() {
return CDIUIMessages.NEW_DECORATOR_WIZARD_INTERFACES_LABEL;
}
protected IStatus packageChanged() {
IStatus result = super.packageChanged();
if(result != null && result.isOK()) {
interceptorBindingsProvider.setPackageFragment(getPackageFragment());
}
registerInBeansXML.validate();
return result;
}
protected IStatus typeNameChanged() {
IStatus result = super.typeNameChanged();
registerInBeansXML.validate();
return result;
}
}