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[p2-dev] New Query API Questions; Migrating from my own ContextQuery
|
Hey, all. I'm working on a tool that adds bundles, features, packages
(essentially IUs) to your target platform from a p2 repository (via
quickfix and a new fancy search dialog). In the past, I was able to do
something like this via a custom ContextQuery. How would I do
something similar now using the new query API and searching for
particular java packages? I essentially need to search for a specific
package and know what IU it belongs too (in the simplest case).
public class IUNameMatchingQuery extends ContextQuery {
/**
* Performs this query on the given iterator, passing all objects in
the iterator
* that match the criteria of this query to the given result.
*/
public final IQueryResult perform(Iterator iterator) {
Collector result = new Collector();
while (iterator.hasNext()) {
Object candidate = iterator.next();
if (candidate instanceof IInstallableUnit) {
result.accept(candidate);
addPackages(candidate, result);
}
}
return result;
}
private void addPackages(Object candidate, Collector result) {
if (candidate instanceof IInstallableUnit) {
IInstallableUnit iu = (IInstallableUnit) candidate;
Collection providedCapabilities = iu.getProvidedCapabilities();
Iterator iterator = providedCapabilities.iterator();
while (iterator.hasNext()) {
IProvidedCapability providedCapability = (IProvidedCapability)
iterator.next();
if (providedCapability.getNamespace().equals("java.package")) {
//$NON-NLS-1$
result.accept(new IUPackage(iu, providedCapability.getName(),
providedCapability.getVersion()));
}
}
}
}
}
Cheers,
--
Chris Aniszczyk | EclipseSource Austin | +1 860 839 2465
http://twitter.com/eclipsesource | http://twitter.com/caniszczyk