Revision 21adfb98
Added by Andreas Müller about 9 years ago
| eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/validation/MarkerManager.java | ||
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package eu.etaxonomy.taxeditor.editor.validation; |
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import java.util.HashMap;
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import java.util.ArrayList;
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import java.util.List; |
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import java.util.Set; |
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import org.eclipse.core.runtime.CoreException; |
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import eu.etaxonomy.cdm.model.validation.EntityConstraintViolation; |
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import eu.etaxonomy.cdm.model.validation.EntityValidationResult;
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import eu.etaxonomy.cdm.model.validation.EntityValidation; |
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import eu.etaxonomy.cdm.model.validation.Severity; |
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/** |
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* A class responsible for refreshing problem markers coming from the CVI |
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* (Cdmlib Validation Infrastructure). |
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*
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* |
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* @author ayco_holleman |
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*
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* |
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*/ |
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/* |
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* See following for problems with icons in Problems view |
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* http://stackoverflow.com |
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* http |
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* ://cubussapiens.hu/2010/11/markers-and-annotations-in-eclipse-for-error-feedback |
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* / |
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*
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* |
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* See here for difficulty of attaching markers to non-resources (files, |
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* folders): |
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* http://stackoverflow.com/questions/12493179/eclipse-virtual-resources |
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*/ |
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public class MarkerManager {
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public static final String MARKER_TYPE_ID = "eu.etaxonomy.taxeditor.markers.validationerror"; |
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/** |
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* The primary key (id) of the EntityValidationResult record |
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*/ |
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public static final String ATTRIB_DATABASE_ID = "databaseId"; |
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// The values of the following constants must correspond to the attributes |
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// defined for the org.eclipse.core.resources.markers extension point in |
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// plugin.xml |
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/** |
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* A user-friendly description of the type of the entity |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_TYPE_NAME = "userFriendlyTypeName"; |
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/** |
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* A user-friendly description of the entity |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_DESCRIPTION = "userFriendlyDescription"; |
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/** |
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* The field whose value violated a constraint |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_FIELD_NAME = "userFriendlyFieldName"; |
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/** |
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* The value violating a constraint |
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*/ |
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public static final String ATTRIB_INVALID_VALUE = "invalidValue"; |
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/** |
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* The message from the {@link Validator} about what was wrong.
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*/ |
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public static final String ATTRIB_VALIDATOR_MESSAGE = "validatorMessage"; |
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/** |
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* The class of the {@link Validator} coding for the constraint
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*/ |
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public static final String ATTRIB_VALIDATOR_CLASS = "validatorClass"; |
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/** |
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* The class of the validated entity |
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*/ |
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public static final String ATTRIB_ENTITY_CLASS = "entityClass"; |
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/** |
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* The id of the validated entity |
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*/ |
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public static final String ATTRIB_ENTITY_ID = "entityId"; |
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private final IWorkspaceRoot root; |
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private final IMarker[] markers; |
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private final List<EntityValidationResult> results; |
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private final HashMap<Integer, EntityValidationResult> resultMap; |
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private final HashMap<Integer, IMarker> markerMap; |
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MarkerManager(List<EntityValidationResult> results) throws CoreException |
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{
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this.root = ResourcesPlugin.getWorkspace().getRoot(); |
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this.markers = root.findMarkers(MARKER_TYPE_ID, true, IResource.DEPTH_INFINITE); |
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this.markerMap = new HashMap<Integer, IMarker>(); |
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for (IMarker marker : markers) {
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markerMap.put(getDatabaseId(marker), marker); |
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} |
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this.results = results; |
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this.resultMap = new HashMap<Integer, EntityValidationResult>(); |
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for (EntityValidationResult result : results) {
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resultMap.put(result.getId(), result); |
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} |
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} |
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/** |
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* Delete all markers that refer to errors that do not exist any longer |
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* (i.e. the corresponding database record has been deleted). |
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* |
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* @return The number of deleted markers |
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* |
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* @throws CoreException |
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*/ |
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int deleteObsoleteMarkers() throws CoreException |
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{
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int i = 0; |
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IMarker[] markers = root.findMarkers(MARKER_TYPE_ID, true, IResource.DEPTH_INFINITE); |
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for (IMarker marker : markers) {
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if (isObsoleteMarker(marker)) {
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++i; |
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marker.delete(); |
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} |
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} |
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return i; |
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} |
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/** |
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* Create markers for new errors (i.e. no marker has been created for them |
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* yet). |
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* |
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* @return The number of new markers |
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* |
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* @throws CoreException |
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*/ |
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int createMarkers() throws CoreException |
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{
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int i = 0; |
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IMarker[] markers = root.findMarkers(MARKER_TYPE_ID, true, IResource.DEPTH_INFINITE); |
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for (EntityValidationResult result : results) {
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if (!isNewResult(result)) {
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continue; |
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} |
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Set<EntityConstraintViolation> problems = result.getEntityConstraintViolations(); |
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for (EntityConstraintViolation problem : problems) {
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if (markerExistsForProblem(problem, markers)) {
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continue; |
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} |
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IMarker marker = root.createMarker(MARKER_TYPE_ID); |
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++i; |
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if (problem.getSeverity() == Severity.ERROR) {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_ERROR); |
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} |
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else if (problem.getSeverity() == Severity.WARNING) {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_WARNING); |
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} |
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else {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_INFO); |
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} |
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marker.setAttribute(IMarker.MESSAGE, problem.getMessage()); |
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marker.setAttribute(ATTRIB_DATABASE_ID, result.getId()); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_TYPE_NAME, result.getUserFriendlyTypeName()); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_DESCRIPTION, result.getUserFriendlyDescription()); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_FIELD_NAME, problem.getUserFriendlyFieldName()); |
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marker.setAttribute(ATTRIB_VALIDATOR_MESSAGE, problem.getMessage()); |
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marker.setAttribute(ATTRIB_INVALID_VALUE, problem.getInvalidValue()); |
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marker.setAttribute(ATTRIB_VALIDATOR_CLASS, problem.getValidator()); |
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marker.setAttribute(ATTRIB_ENTITY_CLASS, result.getValidatedEntityClass()); |
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marker.setAttribute(ATTRIB_ENTITY_ID, result.getValidatedEntityId()); |
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} |
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} |
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return i; |
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} |
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/** |
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* Is there a problem marker that captures the specified |
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* {@link EntityConstraintViolation}? See
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* {@link #markerCapturesProblem(IMarker, EntityConstraintViolation)}.
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* |
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* @param problem |
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* @param markers |
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* @return |
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* @throws CoreException |
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*/ |
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private boolean markerExistsForProblem(EntityConstraintViolation problem, IMarker[] markers) throws CoreException |
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{
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for (IMarker marker : markers) {
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if (markerCapturesProblem(marker, problem)) {
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* <p> |
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* This method determines whether the problem exposed by the specified |
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* marker is <b>de facto</b> equivalent to the specified |
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* {@code EntityConstraintViolation}. When the CVI validates an entity, it
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* first deletes previous validation results for that entity and only then |
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* saves the new validation result. Thus you cannot rely on the database id |
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* of the {@code EntityConstraintViolation} to determine equivalence. Maybe
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* later we can make the CVI more sophisticated in this respect. Or maybe |
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* see if solving it through the equals() method of |
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* {@code EntityValidationResult} and/or {@code EntityConstraintViolation}
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* is possible. But for now this is the easiest solution. |
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* </p> |
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* <p> |
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* The reason we check for equivalence, is that we don't want to |
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* unnecessarily update the Problems view. If a marker is there, we don't |
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* want to replace it with an equivalent marker, because that might lead to |
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* strange click behaviour for end users (e.g. selected problems will |
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* disappear and re-appear unselected). |
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* </p> |
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* |
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* @param marker |
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* @param problem |
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* @return |
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* @throws CoreException |
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*/ |
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private static boolean markerCapturesProblem(IMarker marker, EntityConstraintViolation problem) throws CoreException |
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{
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EntityValidationResult result = problem.getEntityValidationResult(); |
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if (!marker.getAttribute(ATTRIB_ENTITY_CLASS).equals(result.getValidatedEntityClass())) {
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return false; |
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} |
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if (!marker.getAttribute(ATTRIB_ENTITY_ID).equals(result.getValidatedEntityId())) {
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return false; |
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} |
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if (!marker.getAttribute(ATTRIB_USER_FRIENDLY_FIELD_NAME).equals(problem.getPropertyPath())) {
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return false; |
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} |
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if (!marker.getAttribute(ATTRIB_INVALID_VALUE).equals(problem.getInvalidValue())) {
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return false; |
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} |
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if (!marker.getAttribute(ATTRIB_VALIDATOR_CLASS).equals(problem.getValidator())) {
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return false; |
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} |
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return true; |
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} |
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/** |
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* Is this a marker without a corresponding database record ( |
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* {@link EntityValidationResult})?
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* |
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* @param marker |
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* @return |
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* @throws CoreException |
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*/ |
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private boolean isObsoleteMarker(IMarker marker) throws CoreException |
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{
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return resultMap.get(getDatabaseId(marker)) == null; |
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} |
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/** |
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* Is this an {@link EntityValidationResult} for which no marker has been
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* created yet? |
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* |
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* @param result |
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* @return |
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*/ |
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private boolean isNewResult(EntityValidationResult result) |
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{
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return markerMap.get(result.getId()) == null; |
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} |
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/** |
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* Get the id of the {@link EntityValidationResult} that was stored as one
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* of the marker's attributes. |
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* |
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* @param marker |
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* @return |
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* @throws CoreException |
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*/ |
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private static Integer getDatabaseId(IMarker marker) throws CoreException |
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{
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return (Integer) marker.getAttribute(ATTRIB_DATABASE_ID); |
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} |
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public static final String MARKER_TYPE_ID = "eu.etaxonomy.taxeditor.markers.validationerror"; |
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/** |
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* The primary key (id) of the EntityConstraintViolation record |
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*/ |
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public static final String ATTRIB_DATABASE_ID = "databaseId"; |
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// The values of the following constants must correspond to the attributes |
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// defined for the org.eclipse.core.resources.markers extension point in |
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// plugin.xml |
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/** |
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* A user-friendly description of the type of the entity |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_TYPE_NAME = "userFriendlyTypeName"; |
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/** |
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* A user-friendly description of the entity |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_DESCRIPTION = "userFriendlyDescription"; |
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/** |
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* The field whose value violated a constraint |
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*/ |
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public static final String ATTRIB_USER_FRIENDLY_FIELD_NAME = "userFriendlyFieldName"; |
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/** |
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* The value violating a constraint |
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*/ |
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public static final String ATTRIB_INVALID_VALUE = "invalidValue"; |
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/** |
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* The message from the {@link Validator} about what was wrong.
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*/ |
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public static final String ATTRIB_VALIDATOR_MESSAGE = "validatorMessage"; |
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/** |
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* The class of the {@link Validator} coding for the constraint
|
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*/ |
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public static final String ATTRIB_VALIDATOR_CLASS = "validatorClass"; |
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/** |
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* The class of the validated entity |
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*/ |
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public static final String ATTRIB_ENTITY_CLASS = "entityClass"; |
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/** |
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* The id of the validated entity |
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*/ |
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public static final String ATTRIB_ENTITY_ID = "entityId"; |
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private final List<EntityConstraintViolation> problems; |
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MarkerManager(List<EntityValidation> results) {
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this.problems = new ArrayList<EntityConstraintViolation>(); |
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for (EntityValidation result : results) {
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Set<EntityConstraintViolation> problemsPerEntity = result.getEntityConstraintViolations(); |
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for (EntityConstraintViolation problem : problemsPerEntity) {
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problem.setEntityValidation(result); |
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problems.add(problem); |
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} |
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} |
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//MessagingUtils.info("Number of validation errors: " + problems.size());
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} |
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/** |
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* Delete all markers that refer to errors that do not exist any longer |
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* (i.e. the corresponding database record has been deleted). |
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* |
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* @return The number of deleted markers |
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* |
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* @throws CoreException |
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*/ |
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int deleteObsoleteMarkers() throws CoreException {
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int i = 0; |
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IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); |
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IMarker[] markers = root.findMarkers(MARKER_TYPE_ID, true, IResource.DEPTH_INFINITE); |
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for (IMarker marker : markers) {
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if (isObsoleteMarker(marker)) {
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++i; |
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marker.delete(); |
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} |
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} |
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//MessagingUtils.info("Obsolete markers: " + i);
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return i; |
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} |
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|
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/** |
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* Create markers for new errors (i.e. no marker has been created for them |
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* yet). |
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* |
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* @return The number of new markers |
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* |
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* @throws CoreException |
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*/ |
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int createMarkers() throws CoreException {
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int i = 0; |
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IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); |
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IMarker[] markers = root.findMarkers(MARKER_TYPE_ID, true, IResource.DEPTH_INFINITE); |
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for (EntityConstraintViolation problem : problems) {
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if (isNewProblem(problem, markers)) {
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++i; |
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IMarker marker = root.createMarker(MARKER_TYPE_ID); |
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if (problem.getSeverity() == Severity.ERROR) {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_ERROR); |
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} else if (problem.getSeverity() == Severity.WARNING) {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_WARNING); |
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} else {
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marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_INFO); |
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} |
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EntityValidation result = problem.getEntityValidation(); |
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marker.setAttribute(IMarker.MESSAGE, problem.getMessage()); |
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marker.setAttribute(ATTRIB_DATABASE_ID, new Integer(problem.getId())); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_TYPE_NAME, result.getUserFriendlyTypeName()); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_DESCRIPTION, result.getUserFriendlyDescription()); |
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marker.setAttribute(ATTRIB_USER_FRIENDLY_FIELD_NAME, problem.getUserFriendlyFieldName()); |
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marker.setAttribute(ATTRIB_VALIDATOR_MESSAGE, problem.getMessage()); |
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marker.setAttribute(ATTRIB_INVALID_VALUE, problem.getInvalidValue()); |
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marker.setAttribute(ATTRIB_VALIDATOR_CLASS, problem.getValidator()); |
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marker.setAttribute(ATTRIB_ENTITY_CLASS, result.getValidatedEntityClass()); |
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marker.setAttribute(ATTRIB_ENTITY_ID, result.getValidatedEntityId()); |
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} |
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} |
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//MessagingUtils.info("New problems: " + i);
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return i; |
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} |
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|
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private boolean isObsoleteMarker(IMarker marker) throws CoreException {
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for (EntityConstraintViolation problem : problems) {
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if (isMarkerForProblem(marker, problem)) {
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return false; |
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} |
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} |
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return true; |
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} |
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|
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private static boolean isNewProblem(EntityConstraintViolation problem, IMarker[] markers) throws CoreException {
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for (IMarker marker : markers) {
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if (isMarkerForProblem(marker, problem)) {
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return false; |
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} |
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} |
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return true; |
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} |
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| 182 |
|
|
| 183 |
private static boolean isMarkerForProblem(IMarker marker, EntityConstraintViolation problem) throws CoreException {
|
|
| 184 |
if (isEqual(marker, ATTRIB_DATABASE_ID, new Integer(problem.getId()))) {
|
|
| 185 |
return true; |
|
| 186 |
} |
|
| 187 |
EntityValidation result = problem.getEntityValidation(); |
|
| 188 |
if (!isEqual(marker, ATTRIB_ENTITY_ID, result.getValidatedEntityId())) {
|
|
| 189 |
return false; |
|
| 190 |
} |
|
| 191 |
if (!isEqual(marker, ATTRIB_INVALID_VALUE, problem.getInvalidValue())) {
|
|
| 192 |
return false; |
|
| 193 |
} |
|
| 194 |
if (!isEqual(marker, ATTRIB_ENTITY_CLASS, result.getValidatedEntityClass())) {
|
|
| 195 |
return false; |
|
| 196 |
} |
|
| 197 |
if (!isEqual(marker, ATTRIB_USER_FRIENDLY_FIELD_NAME, problem.getUserFriendlyFieldName())) {
|
|
| 198 |
return false; |
|
| 199 |
} |
|
| 200 |
if (!isEqual(marker, ATTRIB_VALIDATOR_CLASS, problem.getValidator())) {
|
|
| 201 |
return false; |
|
| 202 |
} |
|
| 203 |
return true; |
|
| 204 |
} |
|
| 205 |
|
|
| 206 |
private static boolean isEqual(IMarker marker, String attribute, Object value) throws CoreException {
|
|
| 207 |
Object val = marker.getAttribute(attribute); |
|
| 208 |
boolean equal; |
|
| 209 |
if (val == null) {
|
|
| 210 |
equal = value == null; |
|
| 211 |
} else {
|
|
| 212 |
equal = value != null && val.equals(value); |
|
| 213 |
} |
|
| 214 |
return equal; |
|
| 215 |
} |
|
| 289 | 216 |
|
| 290 | 217 |
} |
Also available in: Unified diff