org.eclipse.ui.dialogs.SearchPattern#matches ( )源码实例Demo

protected Predicate<IEObjectDescription> getSearchPredicate(final String stringPattern,
		final String typeStringPattern) {
	final Collection<String> namespaceDelimiters = IXtextSearchFilter.Registry.allNamespaceDelimiters();			
	final SearchPattern searchPattern = new SearchPattern();
	searchPattern.setPattern(stringPattern);
	final SearchPattern typeSearchPattern = new SearchPattern();
	typeSearchPattern.setPattern(typeStringPattern);
	final Collection<IXtextSearchFilter> registeredFilters = IXtextSearchFilter.Registry.allFilters();
	return new Predicate<IEObjectDescription>() {
		@Override
		public boolean apply(IEObjectDescription input) {
			if (isNameMatches(searchPattern, input, namespaceDelimiters)
					&& typeSearchPattern.matches(input.getEClass().getName())) {
				for (IXtextSearchFilter xtextSearchFilter : registeredFilters) {
					if (xtextSearchFilter.reject(input)) {
						return false;
					}
				}
				return true;
			}
			return false;
		}
	};
}
 

protected boolean isNameMatches(SearchPattern searchPattern, IEObjectDescription eObjectDescription, Collection<String> namespaceDelimiters) {
	String qualifiedName = eObjectDescription.getQualifiedName().toString();
	if (qualifiedName!=null) {
		if(searchPattern.matches(qualifiedName)) {
			return true;
		}
		for(String namespaceDelimiter : namespaceDelimiters) {
			int index = qualifiedName.lastIndexOf(namespaceDelimiter); 
			if(index!=-1 && searchPattern.matches(qualifiedName.substring(index+1))) {
				return true;
			}
		}	
	}
	return false;
}
 

/**
 * Matches according to scopes.
 */
public static boolean matchItem(SearchPattern patternMatcher, IInfo info) {
    //We want to match the package name in the beggining too...
    String pattern = patternMatcher.getPattern();
    List<String> split = StringUtils.splitAndRemoveEmptyTrimmed(pattern, '.');
    if (split.size() <= 1) {
        if (pattern.endsWith(".")) {
            split.add("");
        } else {
            return patternMatcher.matches(info.getName());
        }
    }

    //Otherwise, we have more things to match... We could match something like:
    //django.AAA -- which should match all the modules that start with django and the tokens that have AAA.

    String declaringModuleName = info.getDeclaringModuleName();
    if (declaringModuleName == null || declaringModuleName.length() == 0) {
        return false;
    }
    List<String> moduleParts = StringUtils.splitAndRemoveEmptyTrimmed(declaringModuleName, '.');

    while (split.size() > 1) {
        String head = split.remove(0);
        SearchPattern headPattern = new SearchPattern();
        headPattern.setPattern(head);
        if (moduleParts.size() == 0) {
            return false; //we cannot match it anymore
        }
        if (!headPattern.matches(moduleParts.remove(0))) {
            return false;
        }
    }
    //if it got here, we've matched the module correctly... let's go on and check the name.

    SearchPattern tailPattern = new SearchPattern();
    tailPattern.setPattern(split.get(0));
    return tailPattern.matches(info.getName());
}