Re: [jdt-core-dev] SearchEngine

[j3ns@xxxxxxxx]

Hi Frederic Fusier,

Ups - sorry for asking the question here (but someone at the eclipse-dev IRC
channel told me that this might be the place). BUT thanks a lot for answering
my question :-) Now I'll head off to bugzilla to vote for 127442 ;-)

Best regards,

Jens


Quoting Frederic Fusier <frederic_fusier@xxxxxxxxxx>:

> This mailing list is used for development only. Questions like this should
> be posted on eclipse.tools.jdt news group instead...
>
> Saying that, to answer your question, this would have been the correct
> approach if your jar contained sources or had a source attachment location
> and it seems not to be the case...
>
> Unfortunately, SearchEngine is currently not able to find references in
> class files which do not have attached source (see bug
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=127442).
> In this case, it does only look for declarations and that's why you get no
> match to your search request...
>
> Cordialement/Regards,
>
> Frédéric
>
>
>
>
>
>              j3ns@xxxxxxxx
>              Sent by:
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>              ces@xxxxxxxxxxx           jdt-core-dev@xxxxxxxxxxx
>                                                                         cc
>
>              03/30/2006 08:47                                      Subject
>              PM                        [jdt-core-dev] SearchEngine
>
>
>              Please respond to
>              "Eclipse JDT Core
>              developers list."
>
>
>
>
>
>
> Hi,
>
> I was wondering if any of you at the mailing list could help me a little
> with
> the SearchEngine (located in org.elcipse.jdt.core.search). But first I've
> would
> like to tell you a little about what I'm trying to achieve.
>
> I’m trying to create an Editor(multipage) for reading and manipulating a
> JCE
> keystore. But the user should be able to configure the JCE Prodivers he/she
> would like to use to open the selected keystore (by adding/removing and
> changing the order of the JCE Providers in the java.security.Security
> class).
> When the user chooses to add one (or more) providers he would be prompted
> with
> a file dialog so he can choose one or more jar files containing the
> Provider(s).
>
> The file dialog returns an array of paths which is then passed to a method
> which
> uses the SearchEngine to index jar which then is used to look for
> providers. I
> thought it was possible to use the SearchEngine because my public boolean
> encloses(String resourcePath) does see the correct matches (located in the
> ProviderJavaSearchScope.class and the indexes is locaed in
> .metadata/.plugins/org.eclipse.jdt.core) (e.g 2 results for the
> BouncyCastle
> JCE jar file) but I was expecting the get the results from SearchRequestor:
> public void acceptSearchMatch(SearchMatch match). I can see (when I run the
> code below) that all other methods gets called (enter/exitParticipant and
> begin/endReporting).
>
>              public void findProviders(String[] providerPaths) {
>                          SearchPattern pattern =
> SearchPattern.createPattern("java.security.Provider",
> //$NON-NLS-1$
>
> IJavaSearchConstants.CLASS,
>
> IJavaSearchConstants.ALL_OCCURRENCES,
>
> SearchPattern.R_CASE_SENSITIVE | SearchPattern.R_PATTERN_MATCH);
>
>
>                                  SearchRequestor requestor         = new
> ProviderSearchRequestor();
>                                  IJavaSearchScope scope
>  = new ProviderJavaSearchScope(providerPaths);
>                                  SearchParticipant[] participants = new
> SearchParticipant[1];
>                                  participants[0] =
> SearchEngine.getDefaultSearchParticipant(); //new
> JavaSearchParticipant();
>
>                                                  try {
>                                                              SearchEngine
> se = new SearchEngine();
>
> se.search(pattern, participants, scope, requestor, null);
>                                                  } catch (CoreException e)
> {
>
> e.printStackTrace();
>                                                  }
>              }
>
>
> The result that a get (when enabling VERBOSE) is the following:
>
> Thread[main,6,main] BasicSearchEngine.search(SearchPattern,
> SearchParticipant[],
> IJavaSearchScope, SearchRequestor, IProgressMonitor)
> Thread[main,6,main] Searching for pattern: ClassDeclarationPattern:
> qualification<java.security>, type<Provider> ClassDeclarationPattern:
> pkg<*>,
> enclosing<*>, type<Provider>, exact match, case sensitive
> Thread[main,6,main] | TypeReferencePattern: qualification<java.security>,
> type<Provider>, exact match, case sensitive
> Thread[main,6,main]
>
org.iostream.jdt.internal.keystore.util.ProviderLocator$ProviderJavaSearchScope@4b9ec5
>
> start Reporting
> enterParticipant:
> org.eclipse.jdt.internal.core.search.JavaSearchParticipant@a4c0b2
> Thread[main,6,main] STARTING  concurrent job - searching
> ClassDeclarationPattern: qualification<java.security>, type<Provider>
> ClassDeclarationPattern: pkg<*>, enclosing<*>, type<Provider>, exact match,
> case sensitive
> Thread[main,6,main] | TypeReferencePattern: qualification<java.security>,
> type<Provider>, exact match, case sensitive
> Thread[main,6,main] -> execution time: 49ms - searching
> ClassDeclarationPattern:
> qualification<java.security>, type<Provider> ClassDeclarationPattern:
> pkg<*>,
> enclosing<*>, type<Provider>, exact match, case sensitive
> Thread[main,6,main] | TypeReferencePattern: qualification<java.security>,
> type<Provider>, exact match, case sensitive
> Thread[main,6,main] FINISHED  concurrent job - searching
> ClassDeclarationPattern: qualification<java.security>, type<Provider>
> ClassDeclarationPattern: pkg<*>, enclosing<*>, type<Provider>, exact match,
> case sensitive
> Thread[main,6,main] | TypeReferencePattern: qualification<java.security>,
> type<Provider>, exact match, case sensitive
> Locating matches in documents [
>              SearchDocument for
>
/Users/jens/Desktop/providers/bcprov-jdk15-132.jar|org/bouncycastle/jce/provider/X509CertificateObject.class
>
>              SearchDocument for
>
/Users/jens/Desktop/providers/bcprov-jdk15-132.jar|org/bouncycastle/jce/provider/BouncyCastleProvider.class
>
> ]
> exitParticipant:
> org.eclipse.jdt.internal.core.search.JavaSearchParticipant@a4c0b2
> stop Reporting
>
> So my question is: Is what I’m trying to do possible using the SearchEngine
> outside the workspace - or should I take another approach?
>
> best regards,
>
> Jens
>
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