case-study/jdt-after/ui/org/eclipse/jdt/internal/ui/text/java/GetterSetterCompletionProposal.java

   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.text.java;
  12
  13 import java.util.Collection;
  14 import java.util.Set;
  15
  16 import org.eclipse.core.runtime.Assert;
  17 import org.eclipse.core.runtime.CoreException;
  18
  19 import org.eclipse.jface.viewers.StyledString;
  20
  21 import org.eclipse.jface.text.BadLocationException;
  22 import org.eclipse.jface.text.IDocument;
  23 import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4;
  24
  25 import org.eclipse.jdt.core.IField;
  26 import org.eclipse.jdt.core.IMethod;
  27 import org.eclipse.jdt.core.IType;
  28 import org.eclipse.jdt.core.JavaModelException;
  29 import org.eclipse.jdt.core.Signature;
  30 import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
  31
  32 import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
  33 import org.eclipse.jdt.internal.corext.codemanipulation.GetterSetterUtil;
  34 import org.eclipse.jdt.internal.corext.util.JdtFlags;
  35 import org.eclipse.jdt.internal.corext.util.Messages;
  36 import org.eclipse.jdt.internal.corext.util.Strings;
  37
  38 import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal;
  39
  40 import org.eclipse.jdt.internal.ui.JavaPluginImages;
  41 import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings;
  42 import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;
  43
  44 public class GetterSetterCompletionProposal extends JavaTypeCompletionProposal implements ICompletionProposalExtension4 {
  45
  46         public static void evaluateProposals(IType type, String prefix, int offset, int length, int relevance, Set<String> suggestedMethods, Collection<IJavaCompletionProposal> result) throws CoreException {
  47                 if (prefix.length() == 0) {
  48                         relevance--;
  49                 }
  50
  51                 IField[] fields= type.getFields();
  52                 IMethod[] methods= type.getMethods();
  53                 for (int i= 0; i < fields.length; i++) {
  54                         IField curr= fields[i];
  55                         if (!JdtFlags.isEnum(curr)) {
  56                                 String getterName= GetterSetterUtil.getGetterName(curr, null);
  57                                 if (Strings.startsWithIgnoreCase(getterName, prefix) && !hasMethod(methods, getterName)) {
  58                                         suggestedMethods.add(getterName);
  59                                         int getterRelevance= relevance;
  60                                         if (JdtFlags.isStatic(curr) && JdtFlags.isFinal(curr))
  61                                                 getterRelevance= relevance - 1;
  62                                         result.add(new GetterSetterCompletionProposal(curr, offset, length, true, getterRelevance));
  63                                 }
  64
  65                                 if (!JdtFlags.isFinal(curr)) {
  66                                         String setterName= GetterSetterUtil.getSetterName(curr, null);
  67                                         if (Strings.startsWithIgnoreCase(setterName, prefix) && !hasMethod(methods, setterName)) {
  68                                                 suggestedMethods.add(setterName);
  69                                                 result.add(new GetterSetterCompletionProposal(curr, offset, length, false, relevance));
  70                                         }
  71                                 }
  72                         }
  73                 }
  74         }
  75
  76         private static boolean hasMethod(IMethod[] methods, String name) {
  77                 for (int i= 0; i < methods.length; i++) {
  78                         if (methods[i].getElementName().equals(name)) {
  79                                 return true;
  80                         }
  81                 }
  82                 return false;
  83         }
  84
  85         public final IField fField;
  86         public final boolean fIsGetter;
  87
  88         public GetterSetterCompletionProposal(IField field, int start, int length, boolean isGetter, int relevance) throws JavaModelException {
  89                 super("", field.getCompilationUnit(), start, length, JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC), getDisplayName(field, isGetter), relevance); //$NON-NLS-1$
  90                 Assert.isNotNull(field);
  91
  92                 fField= field;
  93                 fIsGetter= isGetter;
  94                 setProposalInfo(new ProposalInfo(field));
  95         }
  96
  97         private static StyledString getDisplayName(IField field, boolean isGetter) throws JavaModelException {
  98                 StyledString buf= new StyledString();
  99                 String fieldTypeName= Signature.toString(field.getTypeSignature());
 100                 String fieldNameLabel= BasicElementLabels.getJavaElementName(field.getElementName());
 101                 if (isGetter) {
 102                         buf.append(BasicElementLabels.getJavaElementName(GetterSetterUtil.getGetterName(field, null) + "() : " + fieldTypeName)); //$NON-NLS-1$
 103                         buf.append(" - ", StyledString.QUALIFIER_STYLER); //$NON-NLS-1$
 104                         buf.append(Messages.format(JavaTextMessages.GetterSetterCompletionProposal_getter_label, fieldNameLabel), StyledString.QUALIFIER_STYLER);
 105                 } else {
 106                         buf.append(BasicElementLabels.getJavaElementName(GetterSetterUtil.getSetterName(field, null) + '(' + fieldTypeName + ") : void"  )); //$NON-NLS-1$
 107                         buf.append(" - ", StyledString.QUALIFIER_STYLER); //$NON-NLS-1$
 108                         buf.append(Messages.format(JavaTextMessages.GetterSetterCompletionProposal_setter_label, fieldNameLabel), StyledString.QUALIFIER_STYLER);
 109                 }
 110                 return buf;
 111         }
 112
 113         /* (non-Javadoc)
 114          * @see JavaTypeCompletionProposal#updateReplacementString(IDocument, char, int, ImportRewrite)
 115          */
 116         @Override
 117         protected boolean updateReplacementString(IDocument document, char trigger, int offset, ImportRewrite impRewrite) throws CoreException, BadLocationException {
 118
 119                 CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings(fField.getJavaProject());
 120                 return settings.generated_994620741155192875(document, this);
 121         }
 122
 123         /*
 124          * @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension4#isAutoInsertable()
 125          */
 126         public boolean isAutoInsertable() {
 127                 return false;
 128         }
 129 }
 130