private ModuleComponentIdentifier chooseBestMatchingDependencyWithMetaData(
ModuleVersionListing versions,
DependencyMetaData dependency,
ModuleComponentRepositoryAccess moduleAccess) {
for (Versioned candidate : sortLatestFirst(versions)) {
MutableModuleVersionMetaData metaData =
resolveComponentMetaData(dependency, candidate, moduleAccess);
ModuleComponentIdentifier candidateIdentifier = metaData.getComponentId();
// Apply version selection rules
ModuleComponentSelector requestedComponentSelector =
DefaultModuleComponentSelector.newSelector(dependency.getRequested());
VersionSelectionInternal selection =
new DefaultVersionSelection(requestedComponentSelector, candidateIdentifier);
versionSelectionRules.apply(selection);
switch (selection.getState()) {
case ACCEPTED:
return candidateIdentifier;
case REJECTED:
continue;
default:
break;
}
// Invoke version matcher
if (versionMatcher.accept(dependency.getRequested().getVersion(), metaData)) {
// We already resolved the correct module.
return candidateIdentifier;
}
}
return null;
}
public ModuleComponentIdentifier choose(
ModuleVersionListing versions,
DependencyMetaData dependency,
ModuleComponentRepositoryAccess moduleAccess) {
if (versionMatcher.needModuleMetadata(dependency.getRequested().getVersion())) {
return chooseBestMatchingDependencyWithMetaData(versions, dependency, moduleAccess);
} else {
return chooseBestMatchingDependency(versions, dependency.getRequested());
}
}
private MutableModuleVersionMetaData resolveComponentMetaData(
DependencyMetaData dependency,
Versioned candidate,
ModuleComponentRepositoryAccess moduleAccess) {
ModuleVersionSelector selector = dependency.getRequested();
ModuleComponentIdentifier candidateId =
DefaultModuleComponentIdentifier.newId(
selector.getGroup(), selector.getName(), candidate.getVersion());
DependencyMetaData moduleVersionDependency =
dependency.withRequestedVersion(candidate.getVersion());
BuildableModuleVersionMetaDataResolveResult descriptorResult =
new DefaultBuildableModuleVersionMetaDataResolveResult();
moduleAccess.resolveComponentMetaData(moduleVersionDependency, candidateId, descriptorResult);
return descriptorResult.getMetaData();
}