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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.corext.codemanipulation;
  12
  13 import net.sourceforge.phpdt.core.Flags;
  14 import net.sourceforge.phpdt.core.IField;
  15 import net.sourceforge.phpdt.core.IJavaProject;
  16 import net.sourceforge.phpdt.core.IMethod;
  17 import net.sourceforge.phpdt.core.IType;
  18 import net.sourceforge.phpdt.core.JavaModelException;
  19 import net.sourceforge.phpdt.core.NamingConventions;
  20 import net.sourceforge.phpdt.core.Signature;
  21 import net.sourceforge.phpdt.internal.corext.util.JavaModelUtil;
  22 import net.sourceforge.phpdt.internal.corext.util.JdtFlags;
  23 import net.sourceforge.phpdt.ui.CodeGeneration;
  24 import net.sourceforge.phpdt.ui.PreferenceConstants;
  25
  26 import org.eclipse.core.runtime.CoreException;
  27
  28 public class GetterSetterUtil {
  29
  30         private static final String[] EMPTY = new String[0];
  31
  32         // no instances
  33         private GetterSetterUtil() {
  34         }
  35
  36         public static String getGetterName(IField field, String[] excludedNames)
  37                         throws JavaModelException {
  38                 boolean useIs = PreferenceConstants.getPreferenceStore().getBoolean(
  39                                 PreferenceConstants.CODEGEN_IS_FOR_GETTERS);
  40                 return getGetterName(field, excludedNames, useIs);
  41         }
  42
  43         private static String getGetterName(IField field, String[] excludedNames,
  44                         boolean useIsForBoolGetters) throws JavaModelException {
  45                 if (excludedNames == null) {
  46                         excludedNames = EMPTY;
  47                 }
  48                 return getGetterName(field.getJavaProject(), field.getElementName(),
  49                                 field.getFlags(), useIsForBoolGetters
  50                                                 && JavaModelUtil.isBoolean(field), excludedNames);
  51         }
  52
  53         public static String getGetterName(IJavaProject project, String fieldName,
  54                         int flags, boolean isBoolean, String[] excludedNames) {
  55                 return NamingConventions.suggestGetterName(project, fieldName, flags,
  56                                 isBoolean, excludedNames);
  57         }
  58
  59         public static String getSetterName(IJavaProject project, String fieldName,
  60                         int flags, boolean isBoolean, String[] excludedNames) {
  61                 return NamingConventions.suggestSetterName(project, fieldName, flags,
  62                                 isBoolean, excludedNames);
  63         }
  64
  65         public static String getSetterName(IField field, String[] excludedNames)
  66                         throws JavaModelException {
  67                 if (excludedNames == null) {
  68                         excludedNames = EMPTY;
  69                 }
  70                 return NamingConventions.suggestSetterName(field.getJavaProject(),
  71                                 field.getElementName(), field.getFlags(), JavaModelUtil
  72                                                 .isBoolean(field), excludedNames);
  73         }
  74
  75         public static IMethod getGetter(IField field) throws JavaModelException {
  76                 IMethod primaryCandidate = JavaModelUtil.findMethod(getGetterName(
  77                                 field, EMPTY, true), new String[0], false, field
  78                                 .getDeclaringType());
  79                 if (!JavaModelUtil.isBoolean(field)
  80                                 || (primaryCandidate != null && primaryCandidate.exists()))
  81                         return primaryCandidate;
  82                 // bug 30906 describes why we need to look for other alternatives here
  83                 String secondCandidateName = getGetterName(field, EMPTY, false);
  84                 return JavaModelUtil.findMethod(secondCandidateName, new String[0],
  85                                 false, field.getDeclaringType());
  86         }
  87
  88         public static IMethod getSetter(IField field) throws JavaModelException {
  89                 String[] args = new String[] { field.getTypeSignature() };
  90                 return JavaModelUtil.findMethod(getSetterName(field, EMPTY), args,
  91                                 false, field.getDeclaringType());
  92         }
  93
  94         /**
  95          * Create a stub for a getter of the given field using getter/setter
  96          * templates. The resulting code has to be formatted and indented.
  97          *
  98          * @param field
  99          *            The field to create a getter for
 100          * @param setterName
 101          *            The chosen name for the setter
 102          * @param addComments
 103          *            If <code>true</code>, comments will be added.
 104          * @param flags
 105          *            The flags signaling visibility, if static, synchronized or
 106          *            final
 107          * @return Returns the generated stub.
 108          * @throws CoreException
 109          */
 110         public static String getSetterStub(IField field, String setterName,
 111                         boolean addComments, int flags) throws CoreException {
 112
 113                 String fieldName = field.getElementName();
 114                 IType parentType = field.getDeclaringType();
 115
 116                 String returnSig = field.getTypeSignature();
 117                 String typeName = Signature.toString(returnSig);
 118
 119                 IJavaProject project = field.getJavaProject();
 120
 121                 String accessorName = NamingConventions
 122                                 .removePrefixAndSuffixForFieldName(project, fieldName, field
 123                                                 .getFlags());
 124                 String argname = StubUtility.suggestArgumentName(project, accessorName,
 125                                 EMPTY);
 126
 127                 boolean isStatic = Flags.isStatic(flags);
 128                 // boolean isSync= Flags.isSynchronized(flags);
 129                 boolean isFinal = Flags.isFinal(flags);
 130
 131                 // create the setter stub
 132                 StringBuffer buf = new StringBuffer();
 133                 if (addComments) {
 134                         String comment = CodeGeneration.getSetterComment(field
 135                                         .getCompilationUnit(),
 136                                         parentType.getTypeQualifiedName('.'), setterName, field
 137                                                         .getElementName(), typeName, argname, accessorName,
 138                                         String.valueOf('\n'));
 139                         if (comment != null) {
 140                                 buf.append(comment);
 141                                 buf.append('\n');
 142                         }
 143                 }
 144                 buf.append(JdtFlags.getVisibilityString(flags));
 145                 buf.append(' ');
 146                 if (isStatic)
 147                         buf.append("static "); //$NON-NLS-1$
 148                         // if (isSync)
 149                         // buf.append("synchronized "); //$NON-NLS-1$
 150                 if (isFinal)
 151                         buf.append("final "); //$NON-NLS-1$
 152
 153                 buf.append("void "); //$NON-NLS-1$
 154                 buf.append(setterName);
 155                 buf.append('(');
 156                 buf.append(typeName);
 157                 buf.append(' ');
 158                 buf.append(argname);
 159                 buf.append(") {\n"); //$NON-NLS-1$
 160
 161                 boolean useThis = PreferenceConstants.getPreferenceStore().getBoolean(
 162                                 PreferenceConstants.CODEGEN_KEYWORD_THIS);
 163                 if (argname.equals(fieldName) || (useThis && !isStatic)) {
 164                         if (isStatic)
 165                                 fieldName = parentType.getElementName() + '.' + fieldName;
 166                         else
 167                                 fieldName = "this." + fieldName; //$NON-NLS-1$
 168                 }
 169                 String body = CodeGeneration.getSetterMethodBodyContent(field
 170                                 .getCompilationUnit(), parentType.getTypeQualifiedName('.'),
 171                                 setterName, fieldName, argname, String.valueOf('\n'));
 172                 if (body != null) {
 173                         buf.append(body);
 174                 }
 175                 buf.append("}\n"); //$NON-NLS-1$
 176                 return buf.toString();
 177         }
 178
 179         /**
 180          * Create a stub for a getter of the given field using getter/setter
 181          * templates. The resulting code has to be formatted and indented.
 182          *
 183          * @param field
 184          *            The field to create a getter for
 185          * @param getterName
 186          *            The chosen name for the getter
 187          * @param addComments
 188          *            If <code>true</code>, comments will be added.
 189          * @param flags
 190          *            The flags signaling visibility, if static, synchronized or
 191          *            final
 192          * @return Returns the generated stub.
 193          * @throws CoreException
 194          */
 195         public static String getGetterStub(IField field, String getterName,
 196                         boolean addComments, int flags) throws CoreException {
 197                 String fieldName = field.getElementName();
 198                 IType parentType = field.getDeclaringType();
 199
 200                 boolean isStatic = Flags.isStatic(flags);
 201                 // boolean isSync= Flags.isSynchronized(flags);
 202                 boolean isFinal = Flags.isFinal(flags);
 203
 204                 String typeName = Signature.toString(field.getTypeSignature());
 205                 String accessorName = NamingConventions
 206                                 .removePrefixAndSuffixForFieldName(field.getJavaProject(),
 207                                                 fieldName, field.getFlags());
 208
 209                 // create the getter stub
 210                 StringBuffer buf = new StringBuffer();
 211                 if (addComments) {
 212                         String comment = CodeGeneration.getGetterComment(field
 213                                         .getCompilationUnit(),
 214                                         parentType.getTypeQualifiedName('.'), getterName, field
 215                                                         .getElementName(), typeName, accessorName, String
 216                                                         .valueOf('\n'));
 217                         if (comment != null) {
 218                                 buf.append(comment);
 219                                 buf.append('\n');
 220                         }
 221                 }
 222
 223                 buf.append(JdtFlags.getVisibilityString(flags));
 224                 buf.append(' ');
 225                 if (isStatic)
 226                         buf.append("static "); //$NON-NLS-1$
 227                         // if (isSync)
 228                         // buf.append("synchronized "); //$NON-NLS-1$
 229                 if (isFinal)
 230                         buf.append("final "); //$NON-NLS-1$
 231
 232                 buf.append(typeName);
 233                 buf.append(' ');
 234                 buf.append(getterName);
 235                 buf.append("() {\n"); //$NON-NLS-1$
 236
 237                 boolean useThis = PreferenceConstants.getPreferenceStore().getBoolean(
 238                                 PreferenceConstants.CODEGEN_KEYWORD_THIS);
 239                 if (useThis && !isStatic) {
 240                         fieldName = "this." + fieldName; //$NON-NLS-1$
 241                 }
 242
 243                 String body = CodeGeneration.getGetterMethodBodyContent(field
 244                                 .getCompilationUnit(), parentType.getTypeQualifiedName('.'),
 245                                 getterName, fieldName, String.valueOf('\n'));
 246                 if (body != null) {
 247                         buf.append(body);
 248                 }
 249                 buf.append("}\n"); //$NON-NLS-1$
 250                 return buf.toString();
 251         }
 252
 253 }