| /******************************************************************************* |
| * Copyright (c) 2005, 2012 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.ui.dialogs; |
| |
| import java.util.Comparator; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.xml.namespace.QName; |
| |
| import org.eclipse.bpel.model.BPELFactory; |
| import org.eclipse.bpel.model.Process; |
| import org.eclipse.bpel.model.Variable; |
| import org.eclipse.bpel.model.util.BPELUtils; |
| import org.eclipse.bpel.ui.Messages; |
| import org.eclipse.bpel.ui.commands.CompoundCommand; |
| import org.eclipse.bpel.ui.commands.InsertInContainerCommand; |
| import org.eclipse.bpel.ui.commands.SetNameCommand; |
| import org.eclipse.bpel.ui.commands.SetVariableTypeCommand; |
| import org.eclipse.bpel.ui.properties.PropertiesLabelProvider; |
| import org.eclipse.bpel.ui.util.BPELUtil; |
| import org.eclipse.bpel.ui.util.ModelHelper; |
| import org.eclipse.bpel.ui.util.NameDialog; |
| import org.eclipse.bpel.ui.util.NamespaceUtils; |
| import org.eclipse.bpel.ui.util.XSDUtils; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.ui.dialogs.FilteredList; |
| import org.eclipse.wst.wsdl.Message; |
| import org.eclipse.xsd.XSDElementDeclaration; |
| import org.eclipse.xsd.XSDTypeDefinition; |
| |
| |
| /** |
| * Asks the user to select a variable. |
| */ |
| public class VariableSelectorDialog extends SelectionAndCreationDialog { |
| |
| protected static class TypeLabelProvider extends LabelProvider { |
| @Override |
| public String getText(Object element) { |
| if (element instanceof Variable) { |
| Variable variable = (Variable)element; |
| if (variable.getMessageType() != null) { |
| Message message = variable.getMessageType(); |
| QName qname = message.getQName(); |
| String uri = NamespaceUtils.convertUriToNamespace(qname.getNamespaceURI()); |
| return uri + " - " + qname.getLocalPart(); //$NON-NLS-1$ |
| } |
| if (variable.getType() != null) { |
| return XSDUtils.getDisplayNameFromXSDType(variable.getType()); |
| } |
| if (variable.getXSDElement() != null) { |
| return variable.getXSDElement().getName(); |
| } |
| } |
| return Messages.VariableSelectorDialog_None_0; |
| } |
| } |
| |
| /** |
| * The sort order should be: |
| * - variables with the desired type |
| * - alphabetical by name |
| */ |
| protected class VariableComparator implements Comparator { |
| /** |
| * The given objects are the variable names. |
| */ |
| public int compare(Object o1, Object o2) { |
| String name1 = (String)o1; |
| String name2 = (String)o2; |
| if (name1 == null || name2 == null) { |
| // neither of the names should be null but we handle it here in case that happens |
| if (name1 == null && name2 == null) return 0; |
| if (name1 == null) return 1; |
| return -1; |
| } |
| // since we are only passed the variable names, we have to use the following workaround |
| // to get the variable object |
| Variable var1 = getVariable(name1); |
| Variable var2 = getVariable(name2); |
| if (variableType != null) { |
| Object type1 = null; |
| Object type2 = null; |
| if (variableType instanceof Message) { |
| type1 = var1.getMessageType(); |
| type2 = var2.getMessageType(); |
| } else if (variableType instanceof XSDTypeDefinition) { |
| type1 = var1.getType(); |
| type2 = var2.getType(); |
| } else if (variableType instanceof XSDElementDeclaration) { |
| type1 = var1.getXSDElement(); |
| type2 = var2.getXSDElement(); |
| } |
| if (variableType.equals(type1) && !variableType.equals(type2)) return -1; |
| if (!variableType.equals(type1) && variableType.equals(type2)) return 1; |
| // if both are equal we should compare the names (bellow) |
| } |
| return name1.compareTo(name2); |
| } |
| } |
| |
| protected EObject modelObject; |
| protected Map nameToVariable; |
| protected Variable[] variables; |
| protected EObject variableType; |
| protected Text filterText; |
| |
| /** |
| * The modelObject is the model element that indicates the scope in which the |
| * variable should be visible. |
| */ |
| public VariableSelectorDialog(Shell parent, EObject modelObject, EObject variableType) { |
| super(parent, new PropertiesLabelProvider(), new TypeLabelProvider()); |
| this.modelObject = modelObject; |
| this.variableType = variableType; |
| nameToVariable = new HashMap(); |
| setMessage(Messages.VariableSelectorDialog_Variable_Name_wildcards_1); |
| setUpperListLabel(Messages.VariableSelectorDialog_Matches_2); |
| setLowerListLabel(Messages.VariableSelectorDialog_Variable_Type_4); |
| refreshVariables(); |
| } |
| |
| protected void refreshVariables() { |
| variables = BPELUtil.getVisibleVariables(modelObject); |
| setElements(variables); |
| if (fFilteredList != null) { |
| setListElements(variables); |
| } |
| } |
| |
| @Override |
| protected FilteredList createFilteredList(Composite parent) { |
| FilteredList result = super.createFilteredList(parent); |
| result.setComparator(new VariableComparator()); |
| return result; |
| } |
| |
| @Override |
| protected void handleNewButtonPushed() { |
| Variable variable = BPELFactory.eINSTANCE.createVariable(); |
| Process process = BPELUtils.getProcess(modelObject); |
| String newName = filterText.getText(); |
| newName = BPELUtil.generateUniqueModelName(process, newName, variable); |
| NameDialog nameDialog = new NameDialog(getShell(), Messages.VariableSelectorDialog_New_Variable_4, Messages.VariableSelectorDialog_Variable_Name_5, |
| newName, BPELUtil.getNCNameValidator()); |
| if (nameDialog.open() == Window.OK) { |
| String newVariableName = nameDialog.getValue(); |
| CompoundCommand command = new CompoundCommand(); |
| command.add(new InsertInContainerCommand(process, variable, null)); |
| command.add(new SetNameCommand(variable, newVariableName)); |
| command.add(new SetVariableTypeCommand(variable, variableType)); |
| ModelHelper.getBPELEditor(process).getCommandStack().execute(command); |
| refreshVariables(); |
| setFilter(variable.getName()); |
| setLowerSelectedElement(variable); |
| |
| // give focus to the dialog's OK button |
| getOkButton().setFocus(); |
| } |
| } |
| |
| /** |
| * Returns a variable from its name. |
| */ |
| protected Variable getVariable(String name) { |
| Variable result = (Variable)nameToVariable.get(name); |
| if (result != null) return result; |
| for (int i = 0; i < variables.length; i++) { |
| if (name.equals(variables[i].getName())) { |
| nameToVariable.put(name, variables[i]); |
| return variables[i]; |
| } |
| } |
| return null; // should never happen |
| } |
| |
| /** |
| * Returns the chosen variable or null. |
| */ |
| public Variable getVariable() { |
| if (getResult().length > 0) { |
| return (Variable)getResult()[0]; |
| } |
| return null; |
| } |
| |
| /** |
| * Only used to get the Text instance. |
| */ |
| @Override |
| protected Text createFilterText(Composite parent) { |
| filterText = super.createFilterText(parent); |
| return filterText; |
| } |
| } |