| 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 | } |