| 1 | /******************************************************************************* | 
| 2 |  * Copyright (c) 2008, 2009 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.pde.api.tools.internal.builder; | 
| 12 |   | 
| 13 | import java.util.ArrayList; | 
| 14 | import java.util.HashSet; | 
| 15 | import java.util.List; | 
| 16 | import java.util.Set; | 
| 17 |   | 
| 18 | import org.eclipse.core.resources.IProject; | 
| 19 | import org.eclipse.pde.api.tools.internal.model.PluginProjectApiComponent; | 
| 20 | import org.eclipse.pde.api.tools.internal.provisional.ApiDescriptionVisitor; | 
| 21 | import org.eclipse.pde.api.tools.internal.provisional.ApiPlugin; | 
| 22 | import org.eclipse.pde.api.tools.internal.provisional.IApiAnnotations; | 
| 23 | import org.eclipse.pde.api.tools.internal.provisional.RestrictionModifiers; | 
| 24 | import org.eclipse.pde.api.tools.internal.provisional.VisibilityModifiers; | 
| 25 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IElementDescriptor; | 
| 26 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IFieldDescriptor; | 
| 27 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IMethodDescriptor; | 
| 28 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IPackageDescriptor; | 
| 29 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IReferenceTypeDescriptor; | 
| 30 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiComponent; | 
| 31 | import org.eclipse.pde.api.tools.internal.provisional.problems.IApiProblemTypes; | 
| 32 |   | 
| 33 | /** | 
| 34 |  * Builds problem detectors for reference analysis. | 
| 35 |  *  | 
| 36 |  * @since 1.1 | 
| 37 |  */ | 
| 38 | public class ProblemDetectorBuilder extends ApiDescriptionVisitor { | 
| 39 |   | 
| 40 |         /** | 
| 41 |          * Problem detectors | 
| 42 |          */ | 
| 43 |         private IllegalExtendsProblemDetector fIllegalExtends = null; | 
| 44 |         private IllegalImplementsProblemDetector fIllegalImplements = null; | 
| 45 |         private IllegalInstantiateProblemDetector fIllegalInstantiate = null; | 
| 46 |         private IllegalOverrideProblemDetector fIllegalOverride = null; | 
| 47 |         private IllegalMethodReferenceDetector fIllegalMethodRef = null; | 
| 48 |         private IllegalFieldReferenceDetector fIllegalFieldRef = null; | 
| 49 |         private SystemApiDetector fSystemApiDetector = null; | 
| 50 |         /** | 
| 51 |          * Cache of non-API package names visited | 
| 52 |          */ | 
| 53 |         private Set fNonApiPackageNames = new HashSet(); | 
| 54 |          | 
| 55 |         /** | 
| 56 |          * The owning {@link IApiComponent} of this builder | 
| 57 |          */ | 
| 58 |         private IApiComponent fComponent = null; | 
| 59 |          | 
| 60 |         /** | 
| 61 |          * Problem detectors used for a component's analysis | 
| 62 |          */ | 
| 63 |         private List fDetectors; | 
| 64 |          | 
| 65 |         /** | 
| 66 |          * Build problem detectors for a component. | 
| 67 |          *  | 
| 68 |          * @param component | 
| 69 |          */ | 
| 70 |         public ProblemDetectorBuilder(IApiComponent component) { | 
| 71 |                 initializeDetectors(component); | 
| 72 |         } | 
| 73 |   | 
| 74 |         /* (non-Javadoc) | 
| 75 |          * @see org.eclipse.pde.api.tools.ApiDescriptionVisitor#visitElement(org.eclipse.pde.api.tools.descriptors.IElementDescriptor, java.lang.String, org.eclipse.pde.api.tools.IApiAnnotations) | 
| 76 |          */ | 
| 77 |         public boolean visitElement(IElementDescriptor element, IApiAnnotations description) { | 
| 78 |                 int mask = description.getRestrictions(); | 
| 79 |                 switch (element.getElementType()) { | 
| 80 |                         case IElementDescriptor.PACKAGE: | 
| 81 |                                 if (VisibilityModifiers.isPrivate(description.getVisibility())) { | 
| 82 |                                         fNonApiPackageNames.add(((IPackageDescriptor)element).getName()); | 
| 83 |                                         return false; // no need to visit types in non-API package | 
| 84 |                                 } | 
| 85 |                                 break; | 
| 86 |                         default: | 
| 87 |                                 if (!RestrictionModifiers.isUnrestricted(mask)) { | 
| 88 |                                         if(RestrictionModifiers.isOverrideRestriction(mask) && fIllegalOverride != null) { | 
| 89 |                                                 fIllegalOverride.addIllegalMethod((IMethodDescriptor) element, fComponent.getId()); | 
| 90 |                                         } | 
| 91 |                                         if (RestrictionModifiers.isExtendRestriction(mask) && fIllegalExtends != null) { | 
| 92 |                                                 fIllegalExtends.addIllegalType((IReferenceTypeDescriptor) element, fComponent.getId()); | 
| 93 |                                         } | 
| 94 |                                         if (RestrictionModifiers.isImplementRestriction(mask) && fIllegalImplements != null) { | 
| 95 |                                                 fIllegalImplements.addIllegalType((IReferenceTypeDescriptor) element, fComponent.getId()); | 
| 96 |                                         } | 
| 97 |                                         if (RestrictionModifiers.isInstantiateRestriction(mask) && fIllegalInstantiate != null) { | 
| 98 |                                                 fIllegalInstantiate.addIllegalType((IReferenceTypeDescriptor) element, fComponent.getId()); | 
| 99 |                                         } | 
| 100 |                                         if (RestrictionModifiers.isReferenceRestriction(mask)) { | 
| 101 |                                                 if (element.getElementType() == IElementDescriptor.METHOD && fIllegalMethodRef != null) { | 
| 102 |                                                         fIllegalMethodRef.addIllegalMethod((IMethodDescriptor) element, fComponent.getId()); | 
| 103 |                                                 } else if (element.getElementType() == IElementDescriptor.FIELD && fIllegalFieldRef != null) { | 
| 104 |                                                         fIllegalFieldRef.addIllegalField((IFieldDescriptor) element, fComponent.getId()); | 
| 105 |                                                 } | 
| 106 |                                         } | 
| 107 |                                 } | 
| 108 |                 } | 
| 109 |                 return true; | 
| 110 |         } | 
| 111 |          | 
| 112 |         /** | 
| 113 |          * Sets the owning component of this builder | 
| 114 |          * @param component | 
| 115 |          */ | 
| 116 |         public void setOwningComponent(IApiComponent component) { | 
| 117 |                 fComponent = component; | 
| 118 |         } | 
| 119 |          | 
| 120 |         /** | 
| 121 |          * @return the {@link IProject} associated with the set {@link IApiComponent} or <code>null</code> | 
| 122 |          * if the component is not a {@link PluginProjectApiComponent} | 
| 123 |          */ | 
| 124 |         private IProject getProject(IApiComponent component) { | 
| 125 |                 if(component instanceof PluginProjectApiComponent) { | 
| 126 |                         PluginProjectApiComponent comp = (PluginProjectApiComponent) component; | 
| 127 |                         return comp.getJavaProject().getProject(); | 
| 128 |                 } | 
| 129 |                 return null; | 
| 130 |         } | 
| 131 |          | 
| 132 |         /** | 
| 133 |          * Initializes the detectors for this builder. This method is only | 
| 134 |          * called when an owning component is set | 
| 135 |          */ | 
| 136 |         private void initializeDetectors(IApiComponent component) { | 
| 137 |                 fDetectors = new ArrayList(); | 
| 138 |                 IProject project = getProject(component); | 
| 139 |                 if(project != null) { | 
| 140 |                         if(!isIgnore(IApiProblemTypes.ILLEGAL_EXTEND, project) && fIllegalExtends == null) { | 
| 141 |                                 fIllegalExtends = new IllegalExtendsProblemDetector(); | 
| 142 |                         } | 
| 143 |                         if(!isIgnore(IApiProblemTypes.ILLEGAL_IMPLEMENT, project) && fIllegalImplements == null) { | 
| 144 |                                 fIllegalImplements = new IllegalImplementsProblemDetector(); | 
| 145 |                         } | 
| 146 |                         if(!isIgnore(IApiProblemTypes.ILLEGAL_INSTANTIATE, project) && fIllegalInstantiate == null) { | 
| 147 |                                 fIllegalInstantiate = new IllegalInstantiateProblemDetector(); | 
| 148 |                         } | 
| 149 |                         if(!isIgnore(IApiProblemTypes.ILLEGAL_OVERRIDE, project) && fIllegalOverride == null) { | 
| 150 |                                 fIllegalOverride = new IllegalOverrideProblemDetector(); | 
| 151 |                         } | 
| 152 |                         if(!isIgnore(IApiProblemTypes.ILLEGAL_REFERENCE, project) && fIllegalMethodRef == null) { | 
| 153 |                                 fIllegalMethodRef = new IllegalMethodReferenceDetector(); | 
| 154 |                                 fIllegalFieldRef = new IllegalFieldReferenceDetector(); | 
| 155 |                         } | 
| 156 |                 } | 
| 157 |                 else { | 
| 158 |                         //add all detectors by default if we have no preference context | 
| 159 |                         fIllegalExtends = new IllegalExtendsProblemDetector(); | 
| 160 |                         fIllegalImplements = new IllegalImplementsProblemDetector(); | 
| 161 |                         fIllegalInstantiate = new IllegalInstantiateProblemDetector(); | 
| 162 |                         fIllegalOverride = new IllegalOverrideProblemDetector(); | 
| 163 |                         fIllegalMethodRef = new IllegalMethodReferenceDetector(); | 
| 164 |                         fIllegalFieldRef = new IllegalFieldReferenceDetector(); | 
| 165 |                 } | 
| 166 |                 if (project != null) { | 
| 167 |                         if (!isIgnore(IApiProblemTypes.INVALID_REFERENCE_IN_SYSTEM_LIBRARIES, project) | 
| 168 |                                          && fSystemApiDetector == null) { | 
| 169 |                                 fSystemApiDetector = new SystemApiDetector(); | 
| 170 |                         } | 
| 171 |                 } else { | 
| 172 |                         //add detector by default only outside of the ide if we have no preference context | 
| 173 |                         fSystemApiDetector = new SystemApiDetector(); | 
| 174 |                 } | 
| 175 |                 if (fIllegalExtends != null) { | 
| 176 |                         fDetectors.add(fIllegalExtends); | 
| 177 |                 } | 
| 178 |                 if (fIllegalImplements != null) { | 
| 179 |                         fDetectors.add(fIllegalImplements); | 
| 180 |                 } | 
| 181 |                 if (fIllegalInstantiate != null) { | 
| 182 |                         fDetectors.add(fIllegalInstantiate); | 
| 183 |                 } | 
| 184 |                 if (fIllegalOverride != null) { | 
| 185 |                         fDetectors.add(fIllegalOverride); | 
| 186 |                 } | 
| 187 |                 if (fIllegalMethodRef != null) { | 
| 188 |                         fDetectors.add(fIllegalMethodRef); | 
| 189 |                 } | 
| 190 |                 if (fIllegalFieldRef != null) { | 
| 191 |                         fDetectors.add(fIllegalFieldRef); | 
| 192 |                 } | 
| 193 |                 if (fSystemApiDetector != null) { | 
| 194 |                         fDetectors.add(fSystemApiDetector); | 
| 195 |                 } | 
| 196 |                 addLeakDetectors(fDetectors, component); | 
| 197 |         } | 
| 198 |          | 
| 199 |         /** | 
| 200 |          * Returns whether the given problem kind should be ignored. | 
| 201 |          *  | 
| 202 |          * @param problemKey | 
| 203 |          * @return whether the given problem kind should be ignored | 
| 204 |          */ | 
| 205 |         private boolean isIgnore(String problemKey, IProject project) { | 
| 206 |                 int severity = ApiPlugin.getDefault().getSeverityLevel(problemKey, project); | 
| 207 |                 return severity == ApiPlugin.SEVERITY_IGNORE; | 
| 208 |         } | 
| 209 |          | 
| 210 |         /** | 
| 211 |          * Returns a set of all non-API package names that are in prerequisite components. | 
| 212 |          *  | 
| 213 |          * @return | 
| 214 |          */ | 
| 215 |         Set getNonApiPackageNames() { | 
| 216 |                 return fNonApiPackageNames; | 
| 217 |         } | 
| 218 |          | 
| 219 |         /** | 
| 220 |          * Adds additional non-API package descriptors to the detector builder. | 
| 221 |          * @param packagee | 
| 222 |          * @return true if the descriptor did not exist in the current collection and was added, false otherwise | 
| 223 |          */ | 
| 224 |         public boolean addNonApiPackageName(String packagee) { | 
| 225 |                 if(packagee != null) { | 
| 226 |                         return fNonApiPackageNames.add(packagee); | 
| 227 |                 } | 
| 228 |                 return false; | 
| 229 |         } | 
| 230 |          | 
| 231 |         /** | 
| 232 |          * Returns a list of problem detectors to be used. | 
| 233 |          *  | 
| 234 |          * @return problem detectors | 
| 235 |          */ | 
| 236 |         List getProblemDetectors() { | 
| 237 |                 return fDetectors; | 
| 238 |         } | 
| 239 |          | 
| 240 |         /** | 
| 241 |          * Adds any leak detectors to the listing. If a project context is available we  | 
| 242 |          * filter out disabled detectors based on project  / workspace preference settings | 
| 243 |          * @param detectors | 
| 244 |          */ | 
| 245 |         private void addLeakDetectors(List detectors, IApiComponent component) { | 
| 246 |                 IProject project = getProject(component); | 
| 247 |                 if(project != null) { | 
| 248 |                         if(!isIgnore(IApiProblemTypes.LEAK_EXTEND, project)) { | 
| 249 |                                 detectors.add(new LeakExtendsProblemDetector(fNonApiPackageNames)); | 
| 250 |                         } | 
| 251 |                         if(!isIgnore(IApiProblemTypes.LEAK_IMPLEMENT, project)) { | 
| 252 |                                 detectors.add(new LeakImplementsProblemDetector(fNonApiPackageNames)); | 
| 253 |                         } | 
| 254 |                         if(!isIgnore(IApiProblemTypes.LEAK_FIELD_DECL, project)) { | 
| 255 |                                 detectors.add(new LeakFieldProblemDetector(fNonApiPackageNames)); | 
| 256 |                         } | 
| 257 |                         if(!isIgnore(IApiProblemTypes.LEAK_METHOD_PARAM, project)) { | 
| 258 |                                 detectors.add(new LeakParameterTypeDetector(fNonApiPackageNames)); | 
| 259 |                         } | 
| 260 |                         if(!isIgnore(IApiProblemTypes.LEAK_METHOD_RETURN_TYPE, project)) { | 
| 261 |                                 detectors.add(new LeakReturnTypeDetector(fNonApiPackageNames)); | 
| 262 |                         } | 
| 263 |                 } | 
| 264 |                 else { | 
| 265 |                         // add all leak detectors by default if we have no preference context | 
| 266 |                         detectors.add(new LeakExtendsProblemDetector(fNonApiPackageNames)); | 
| 267 |                         detectors.add(new LeakImplementsProblemDetector(fNonApiPackageNames)); | 
| 268 |                         detectors.add(new LeakFieldProblemDetector(fNonApiPackageNames)); | 
| 269 |                         detectors.add(new LeakReturnTypeDetector(fNonApiPackageNames)); | 
| 270 |                         detectors.add(new LeakParameterTypeDetector(fNonApiPackageNames)); | 
| 271 |                 } | 
| 272 |         } | 
| 273 | } |