]>
Commit | Line | Data |
---|---|---|
1b2798f6 EK |
1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * IBM Corporation - initial API and implementation | |
10 | *******************************************************************************/ | |
11 | package org.eclipse.jdt.internal.ui.actions; | |
12 | ||
13 | import java.util.ArrayList; | |
14 | import java.util.List; | |
15 | ||
16 | import org.eclipse.core.runtime.IStatus; | |
17 | ||
18 | import org.eclipse.ui.dialogs.ISelectionStatusValidator; | |
19 | ||
20 | import org.eclipse.jdt.core.dom.IMethodBinding; | |
21 | import org.eclipse.jdt.core.dom.ITypeBinding; | |
22 | import org.eclipse.jdt.core.dom.IVariableBinding; | |
23 | ||
24 | import org.eclipse.jdt.internal.corext.util.Messages; | |
25 | ||
26 | import org.eclipse.jdt.internal.ui.dialogs.StatusInfo; | |
27 | ||
28 | public class GenerateConstructorUsingFieldsValidator implements ISelectionStatusValidator { | |
29 | ||
30 | private GenerateConstructorUsingFieldsSelectionDialog fDialog; | |
31 | ||
32 | private final int fEntries; | |
33 | ||
34 | private List<String> fSignatures; | |
35 | ||
36 | private ITypeBinding fType= null; | |
37 | ||
38 | public GenerateConstructorUsingFieldsValidator(GenerateConstructorUsingFieldsSelectionDialog dialog, ITypeBinding type, int entries) { | |
39 | fEntries= entries; | |
40 | fDialog= dialog; | |
41 | fType= type; | |
42 | fSignatures= getExistingConstructorSignatures(); | |
43 | } | |
44 | ||
45 | public GenerateConstructorUsingFieldsValidator(int entries) { | |
46 | fEntries= entries; | |
47 | fType= null; | |
48 | } | |
49 | ||
50 | private int countSelectedFields(Object[] selection) { | |
51 | int count= 0; | |
52 | for (int index= 0; index < selection.length; index++) { | |
53 | if (selection[index] instanceof IVariableBinding) | |
54 | count++; | |
55 | } | |
56 | return count; | |
57 | } | |
58 | ||
59 | private void createSignature(final IMethodBinding constructor, StringBuffer buffer, Object[] selection) { | |
60 | ITypeBinding types[]= constructor.getParameterTypes(); | |
61 | for (int index= 0; index < types.length; index++) | |
62 | buffer.append(types[index].getName()); | |
63 | if (selection != null) { | |
64 | for (int index= 0; index < selection.length; index++) | |
65 | if (selection[index] instanceof IVariableBinding) | |
66 | buffer.append(((IVariableBinding) selection[index]).getType().getErasure().getName()); | |
67 | } | |
68 | } | |
69 | ||
70 | private List<String> getExistingConstructorSignatures() { | |
71 | List<String> existing= new ArrayList<String>(); | |
72 | IMethodBinding[] methods= fType.getDeclaredMethods(); | |
73 | for (int index= 0; index < methods.length; index++) { | |
74 | if (methods[index].isConstructor()) { | |
75 | StringBuffer buffer= new StringBuffer(); | |
76 | createSignature(methods[index], buffer, null); | |
77 | existing.add(buffer.toString()); | |
78 | } | |
79 | } | |
80 | return existing; | |
81 | } | |
82 | ||
83 | public IStatus validate(Object[] selection) { | |
84 | StringBuffer buffer= new StringBuffer(); | |
85 | final IMethodBinding constructor= fDialog.getSuperConstructorChoice(); | |
86 | createSignature(constructor, buffer, selection); | |
87 | if (fSignatures.contains(buffer.toString())) | |
88 | return new StatusInfo(IStatus.WARNING, ActionMessages.GenerateConstructorUsingFieldsAction_error_duplicate_constructor); | |
89 | return new StatusInfo(IStatus.INFO, Messages.format(ActionMessages.GenerateConstructorUsingFieldsAction_fields_selected, new Object[] { String.valueOf(countSelectedFields(selection)), String.valueOf(fEntries)})); | |
90 | } | |
91 | } |