Examples with IQueryParticipant org.eclipse.jdt.ui.search.IQueryParticipant used on opensource projects

Example 1 with IQueryParticipant

use of org.eclipse.jdt.ui.search.IQueryParticipant in project che by eclipse.

the class JavaSearchQuery method run.

public IStatus run(IProgressMonitor monitor) {
    final JavaSearchResult textResult = (JavaSearchResult) getSearchResult();
    textResult.removeAll();
    // Don't need to pass in working copies in 3.0 here
    SearchEngine engine = new SearchEngine();
    try {
        int totalTicks = 1000;
        IProject[] projects = JavaSearchScopeFactory.getInstance().getProjects(fPatternData.getScope());
        final SearchParticipantRecord[] participantDescriptors = SearchParticipantsExtensionPoint.getInstance().getSearchParticipants(projects);
        final int[] ticks = new int[participantDescriptors.length];
        for (int i = 0; i < participantDescriptors.length; i++) {
            final int iPrime = i;
            ISafeRunnable runnable = new ISafeRunnable() {

                public void handleException(Throwable exception) {
                    ticks[iPrime] = 0;
                    String message = SearchMessages.JavaSearchQuery_error_participant_estimate;
                    JavaPlugin.log(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, message, exception));
                }

                public void run() throws Exception {
                    ticks[iPrime] = participantDescriptors[iPrime].getParticipant().estimateTicks(fPatternData);
                }
            };
            SafeRunner.run(runnable);
            totalTicks += ticks[i];
        }
        SearchPattern pattern;
        String stringPattern;
        if (fPatternData instanceof ElementQuerySpecification) {
            IJavaElement element = ((ElementQuerySpecification) fPatternData).getElement();
            stringPattern = JavaElementLabels.getElementLabel(element, JavaElementLabels.ALL_DEFAULT);
            if (!element.exists()) {
                return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, Messages.format(SearchMessages.JavaSearchQuery_error_element_does_not_exist, stringPattern), null);
            }
            pattern = SearchPattern.createPattern(element, fPatternData.getLimitTo(), SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE);
        } else {
            PatternQuerySpecification patternSpec = (PatternQuerySpecification) fPatternData;
            stringPattern = patternSpec.getPattern();
            int matchMode = getMatchMode(stringPattern) | SearchPattern.R_ERASURE_MATCH;
            if (patternSpec.isCaseSensitive())
                matchMode |= SearchPattern.R_CASE_SENSITIVE;
            pattern = SearchPattern.createPattern(patternSpec.getPattern(), patternSpec.getSearchFor(), patternSpec.getLimitTo(), matchMode);
        }
        if (pattern == null) {
            return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, Messages.format(SearchMessages.JavaSearchQuery_error_unsupported_pattern, stringPattern), null);
        }
        monitor.beginTask(Messages.format(SearchMessages.JavaSearchQuery_task_label, stringPattern), totalTicks);
        IProgressMonitor mainSearchPM = new SubProgressMonitor(monitor, 1000);
        boolean ignorePotentials = NewSearchUI.arePotentialMatchesIgnored();
        NewSearchResultCollector collector = new NewSearchResultCollector(textResult, ignorePotentials);
        engine.search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() }, fPatternData.getScope(), collector, mainSearchPM);
        for (int i = 0; i < participantDescriptors.length; i++) {
            final ISearchRequestor requestor = new SearchRequestor(participantDescriptors[i].getParticipant(), textResult);
            final IProgressMonitor participantPM = new SubProgressMonitor(monitor, ticks[i]);
            final int iPrime = i;
            ISafeRunnable runnable = new ISafeRunnable() {

                public void handleException(Throwable exception) {
                    participantDescriptors[iPrime].getDescriptor().disable();
                    String message = SearchMessages.JavaSearchQuery_error_participant_search;
                    JavaPlugin.log(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, message, exception));
                }

                public void run() throws Exception {
                    final IQueryParticipant participant = participantDescriptors[iPrime].getParticipant();
                    final PerformanceStats stats = PerformanceStats.getStats(PERF_SEARCH_PARTICIPANT, participant);
                    stats.startRun();
                    participant.search(requestor, fPatternData, participantPM);
                    stats.endRun();
                }
            };
            SafeRunner.run(runnable);
        }
    } catch (CoreException e) {
        return e.getStatus();
    }
    String message = Messages.format(SearchMessages.JavaSearchQuery_status_ok_message, String.valueOf(textResult.getMatchCount()));
    return new Status(IStatus.OK, JavaPlugin.getPluginId(), 0, message, null);
}