Clover coverage report - PMD - 3.7
Coverage timestamp: Wed May 31 2006 09:25:59 EDT

file stats: | LOC: | 305 |  | Methods: | 23
| NCLOC: | 214 |  | Classes: | 3

Source file | Conditionals | Statements | Methods | TOTAL

AccessorClassGeneration.java

63.6%

72.6%

95.7%

73.3%

1 |  | /**
2 |  | * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3 |  | */
4 |  | package net.sourceforge.pmd.rules;
5 |  |
6 |  | import net.sourceforge.pmd.AbstractRule;
7 |  | import net.sourceforge.pmd.ast.ASTAllocationExpression;
8 |  | import net.sourceforge.pmd.ast.ASTArguments;
9 |  | import net.sourceforge.pmd.ast.ASTArrayDimsAndInits;
10 |  | import net.sourceforge.pmd.ast.ASTClassOrInterfaceDeclaration;
11 |  | import net.sourceforge.pmd.ast.ASTClassOrInterfaceType;
12 |  | import net.sourceforge.pmd.ast.ASTCompilationUnit;
13 |  | import net.sourceforge.pmd.ast.ASTConstructorDeclaration;
14 |  | import net.sourceforge.pmd.ast.ASTEnumDeclaration;
15 |  |
16 |  | import java.util.ArrayList;
17 |  | import java.util.Iterator;
18 |  | import java.util.List;
19 |  | import java.util.ListIterator;
20 |  |
21 |  | /**
22 |  | * 1. Note all private constructors.
23 |  | * 2. Note all instantiations from outside of the class by way of the private
24 |  | * constructor.
25 |  | * 3. Flag instantiations.
26 |  | * <p/>
27 |  | * <p/>
28 |  | * Parameter types can not be matched because they can come as exposed members
29 |  | * of classes. In this case we have no way to know what the type is. We can
30 |  | * make a best effort though which can filter some?
31 |  | *
32 |  | * @author CL Gilbert (dnoyeb@users.sourceforge.net)
33 |  | * @author David Konecny (david.konecny@)
34 |  | */
35 |  | public class AccessorClassGeneration extends AbstractRule {
36 |  |
37 |  | private List classDataList = new ArrayList();
38 |  | private int classID = -1;
39 |  | private String packageName;
40 |  |
41 | 0 | public Object visit(ASTEnumDeclaration node, Object data) {
42 | 0 | return data; // just skip Enums
43 |  | }
44 |  |
45 | 4 | public Object visit(ASTCompilationUnit node, Object data) {
46 | 4 | classDataList.clear();
47 | 4 | packageName = node.getScope().getEnclosingSourceFileScope().getPackageName();
48 | 4 | return super.visit(node, data);
49 |  | }
50 |  |
51 |  | private static class ClassData {
52 |  | private String m_ClassName;
53 |  | private List m_PrivateConstructors;
54 |  | private List m_Instantiations;
55 |  | /**
56 |  | * List of outer class names that exist above this class
57 |  | */
58 |  | private List m_ClassQualifyingNames;
59 |  |
60 | 8 | public ClassData(String className) {
61 | 8 | m_ClassName = className;
62 | 8 | m_PrivateConstructors = new ArrayList();
63 | 8 | m_Instantiations = new ArrayList();
64 | 8 | m_ClassQualifyingNames = new ArrayList();
65 |  | }
66 |  |
67 | 3 | public void addInstantiation(AllocData ad) {
68 | 3 | m_Instantiations.add(ad);
69 |  | }
70 |  |
71 | 2 | public Iterator getInstantiationIterator() {
72 | 2 | return m_Instantiations.iterator();
73 |  | }
74 |  |
75 | 2 | public void addConstructor(ASTConstructorDeclaration cd) {
76 | 2 | m_PrivateConstructors.add(cd);
77 |  | }
78 |  |
79 | 8 | public Iterator getPrivateConstructorIterator() {
80 | 8 | return m_PrivateConstructors.iterator();
81 |  | }
82 |  |
83 | 5 | public String getClassName() {
84 | 5 | return m_ClassName;
85 |  | }
86 |  |
87 | 3 | public void addClassQualifyingName(String name) {
88 | 3 | m_ClassQualifyingNames.add(name);
89 |  | }
90 |  |
91 | 3 | public List getClassQualifyingNamesList() {
92 | 3 | return m_ClassQualifyingNames;
93 |  | }
94 |  | }
95 |  |
96 |  | private static class AllocData {
97 |  | private String m_Name;
98 |  | private int m_ArgumentCount;
99 |  | private ASTAllocationExpression m_ASTAllocationExpression;
100 |  | private boolean isArray;
101 |  |
102 | 3 | public AllocData(ASTAllocationExpression node, String aPackageName, List classQualifyingNames) {
103 | 3 | if (node.jjtGetChild(1) instanceof ASTArguments) {
104 | 3 | ASTArguments aa = (ASTArguments) node.jjtGetChild(1);
105 | 3 | m_ArgumentCount = aa.getArgumentCount();
106 |  | //Get name and strip off all superfluous data
107 |  | //strip off package name if it is current package
108 | 3 | if (!(node.jjtGetChild(0) instanceof ASTClassOrInterfaceType)) {
109 | 0 | throw new RuntimeException("BUG: Expected a ASTClassOrInterfaceType, got a " + node.jjtGetChild(0).getClass());
110 |  | }
111 | 3 | ASTClassOrInterfaceType an = (ASTClassOrInterfaceType) node.jjtGetChild(0);
112 | 3 | m_Name = stripString(aPackageName + ".", an.getImage());
113 |  |
114 |  | //strip off outer class names
115 |  | //try OuterClass, then try OuterClass.InnerClass, then try OuterClass.InnerClass.InnerClass2, etc...
116 | 3 | String findName = "";
117 | 3 | for (ListIterator li = classQualifyingNames.listIterator(classQualifyingNames.size()); li.hasPrevious();) {
118 | 1 | String aName = (String) li.previous();
119 | 1 | findName = aName + "." + findName;
120 | 1 | if (m_Name.startsWith(findName)) {
121 |  | //strip off name and exit
122 | 0 | m_Name = m_Name.substring(findName.length());
123 | 0 | break;
124 |  | }
125 |  | }
126 | 0 | } else if (node.jjtGetChild(1) instanceof ASTArrayDimsAndInits) {
127 |  | //this is incomplete because I dont need it.
128 |  | // child 0 could be primitive or object (ASTName or ASTPrimitiveType)
129 | 0 | isArray = true;
130 |  | }
131 | 3 | m_ASTAllocationExpression = node;
132 |  | }
133 |  |
134 | 2 | public String getName() {
135 | 2 | return m_Name;
136 |  | }
137 |  |
138 | 2 | public int getArgumentCount() {
139 | 2 | return m_ArgumentCount;
140 |  | }
141 |  |
142 | 2 | public ASTAllocationExpression getASTAllocationExpression() {
143 | 2 | return m_ASTAllocationExpression;
144 |  | }
145 |  |
146 | 3 | public boolean isArray() {
147 | 3 | return isArray;
148 |  | }
149 |  | }
150 |  |
151 |  | /**
152 |  | * Outer interface visitation
153 |  | */
154 | 8 | public Object visit(ASTClassOrInterfaceDeclaration node, Object data) {
155 | 8 | if (node.isInterface()) {
156 | 0 | if (node.isNested()) {
157 | 0 | String interfaceName = node.getImage();
158 | 0 | int formerID = getClassID();
159 | 0 | setClassID(classDataList.size());
160 | 0 | ClassData newClassData = new ClassData(interfaceName);
161 |  | //store the names of any outer classes of this class in the classQualifyingName List
162 | 0 | ClassData formerClassData = (ClassData) classDataList.get(formerID);
163 | 0 | newClassData.addClassQualifyingName(formerClassData.getClassName());
164 | 0 | classDataList.add(getClassID(), newClassData);
165 | 0 | Object o = super.visit(node, data);
166 | 0 | setClassID(formerID);
167 | 0 | return o;
168 |  | } else {
169 | 0 | String interfaceName = node.getImage();
170 | 0 | classDataList.clear();
171 | 0 | setClassID(0);
172 | 0 | classDataList.add(getClassID(), new ClassData(interfaceName));
173 | 0 | Object o = super.visit(node, data);
174 | 0 | if (o != null) {
175 | 0 | processRule(o);
176 |  | } else {
177 | 0 | processRule(data);
178 |  | }
179 | 0 | setClassID(-1);
180 | 0 | return o;
181 |  | }
182 | 8 | } else if (node.isNested()) {
183 | 3 | String className = node.getImage();
184 | 3 | int formerID = getClassID();
185 | 3 | setClassID(classDataList.size());
186 | 3 | ClassData newClassData = new ClassData(className);
187 |  | // TODO
188 |  | // this is a hack to bail out here
189 |  | // but I'm not sure why this is happening
190 |  | // TODO
191 | 3 | if (formerID == -1 || formerID >= classDataList.size()) {
192 | 0 | return null;
193 |  | }
194 |  | //store the names of any outer classes of this class in the classQualifyingName List
195 | 3 | ClassData formerClassData = (ClassData) classDataList.get(formerID);
196 | 3 | newClassData.addClassQualifyingName(formerClassData.getClassName());
197 | 3 | classDataList.add(getClassID(), newClassData);
198 | 3 | Object o = super.visit(node, data);
199 | 3 | setClassID(formerID);
200 | 3 | return o;
201 |  | }
202 |  | // outer classes
203 | 5 | String className = node.getImage();
204 | 5 | classDataList.clear();
205 | 5 | setClassID(0);//first class
206 | 5 | classDataList.add(getClassID(), new ClassData(className));
207 | 5 | Object o = super.visit(node, data);
208 | 5 | if (o != null) {
209 | 0 | processRule(o);
210 |  | } else {
211 | 5 | processRule(data);
212 |  | }
213 | 5 | setClassID(-1);
214 | 5 | return o;
215 |  | }
216 |  |
217 |  | /**
218 |  | * Store all target constructors
219 |  | */
220 | 3 | public Object visit(ASTConstructorDeclaration node, Object data) {
221 | 3 | if (node.isPrivate()) {
222 | 2 | getCurrentClassData().addConstructor(node);
223 |  | }
224 | 3 | return super.visit(node, data);
225 |  | }
226 |  |
227 | 4 | public Object visit(ASTAllocationExpression node, Object data) {
228 |  | // TODO
229 |  | // this is a hack to bail out here
230 |  | // but I'm not sure why this is happening
231 |  | // TODO
232 | 4 | if (classID == -1 || getCurrentClassData() == null) {
233 | 1 | return data;
234 |  | }
235 | 3 | AllocData ad = new AllocData(node, packageName, getCurrentClassData().getClassQualifyingNamesList());
236 | 3 | if (ad.isArray() == false) {
237 | 3 | getCurrentClassData().addInstantiation(ad);
238 |  | }
239 | 3 | return super.visit(node, data);
240 |  | }
241 |  |
242 | 5 | private void processRule(Object ctx) {
243 |  | //check constructors of outerIterator against allocations of innerIterator
244 | 5 | for (Iterator outerIterator = classDataList.iterator(); outerIterator.hasNext();) {
245 | 8 | ClassData outerDataSet = (ClassData) outerIterator.next();
246 | 8 | for (Iterator constructors = outerDataSet.getPrivateConstructorIterator(); constructors.hasNext();) {
247 | 2 | ASTConstructorDeclaration cd = (ASTConstructorDeclaration) constructors.next();
248 |  |
249 | 2 | for (Iterator innerIterator = classDataList.iterator(); innerIterator.hasNext();) {
250 | 4 | ClassData innerDataSet = (ClassData) innerIterator.next();
251 | 4 | if (outerDataSet == innerDataSet) {
252 | 2 | continue;
253 |  | }
254 | 2 | for (Iterator allocations = innerDataSet.getInstantiationIterator(); allocations.hasNext();) {
255 | 2 | AllocData ad = (AllocData) allocations.next();
256 |  | //if the constructor matches the instantiation
257 |  | //flag the instantiation as a generator of an extra class
258 | 2 | if (outerDataSet.getClassName().equals(ad.getName()) && (cd.getParameterCount() == ad.getArgumentCount())) {
259 | 2 | addViolation(ctx, ad.getASTAllocationExpression());
260 |  | }
261 |  | }
262 |  | }
263 |  | }
264 |  | }
265 |  | }
266 |  |
267 | 11 | private ClassData getCurrentClassData() {
268 |  | // TODO
269 |  | // this is a hack to bail out here
270 |  | // but I'm not sure why this is happening
271 |  | // TODO
272 | 11 | if (classID >= classDataList.size()) {
273 | 0 | return null;
274 |  | }
275 | 11 | return (ClassData) classDataList.get(classID);
276 |  | }
277 |  |
278 | 16 | private void setClassID(int ID) {
279 | 16 | classID = ID;
280 |  | }
281 |  |
282 | 11 | private int getClassID() {
283 | 11 | return classID;
284 |  | }
285 |  |
286 |  | //remove = Fire.
287 |  | //value = someFire.Fighter
288 |  | // 0123456789012345
289 |  | //index = 4
290 |  | //remove.size() = 5
291 |  | //value.substring(0,4) = some
292 |  | //value.substring(4 + remove.size()) = Fighter
293 |  | //return "someFighter"
294 | 3 | private static String stripString(String remove, String value) {
295 | 3 | String returnValue;
296 | 3 | int index = value.indexOf(remove);
297 | 3 | if (index != -1) { //if the package name can start anywhere but 0 please inform the author because this will break
298 | 0 | returnValue = value.substring(0, index) + value.substring(index + remove.length());
299 |  | } else {
300 | 3 | returnValue = value;
301 |  | }
302 | 3 | return returnValue;
303 |  | }
304 |  |
305 |  | }