public void visitOutgoingDependencies(Collection<DependencyEdge> target) {
// If this configuration's version is in conflict, don't do anything
// If not traversed before, add all selected outgoing edges
// If traversed before, and the selected modules have changed, remove previous outgoing edges
// and add outgoing edges again with
// the new selections.
// If traversed before, and the selected modules have not changed, ignore
// If none of the incoming edges are transitive, then the node has no outgoing edges
if (moduleRevision.state != ModuleState.Selected) {
LOGGER.debug("version for {} is not selected. ignoring.", this);
return;
}
List<DependencyEdge> transitiveIncoming = new ArrayList<DependencyEdge>();
for (DependencyEdge edge : incomingEdges) {
if (edge.isTransitive()) {
transitiveIncoming.add(edge);
}
}
if (transitiveIncoming.isEmpty() && this != resolveState.root) {
if (previousTraversal != null) {
removeOutgoingEdges();
}
if (incomingEdges.isEmpty()) {
LOGGER.debug("{} has no incoming edges. ignoring.", this);
} else {
LOGGER.debug("{} has no transitive incoming edges. ignoring outgoing edges.", this);
}
return;
}
ModuleResolutionFilter resolutionFilter = getSelector(transitiveIncoming);
if (previousTraversal != null) {
if (previousTraversal.acceptsSameModulesAs(resolutionFilter)) {
LOGGER.debug(
"Changed edges for {} selects same versions as previous traversal. ignoring", this);
// Don't need to traverse again, but hang on to the new filter as the set of artifact may
// have changed
previousTraversal = resolutionFilter;
return;
}
removeOutgoingEdges();
}
for (DependencyMetaData dependency : metaData.getDependencies()) {
ModuleIdentifier targetModuleId =
DefaultModuleIdentifier.newId(
dependency.getRequested().getGroup(), dependency.getRequested().getName());
if (isExcluded(resolutionFilter, targetModuleId)) {
continue;
}
DependencyEdge dependencyEdge =
new DependencyEdge(this, dependency, resolutionFilter, resolveState);
outgoingEdges.add(dependencyEdge);
target.add(dependencyEdge);
}
previousTraversal = resolutionFilter;
}
@Override
public String toString() {
return String.format(
"%s -> %s(%s)",
from.toString(),
dependencyMetaData.getRequested(),
Joiner.on(',').join(dependencyMetaData.getModuleConfigurations()));
}
public ModuleVersionSelectorResolveState getSelector(DependencyMetaData dependencyMetaData) {
ModuleVersionSelector requested = dependencyMetaData.getRequested();
ModuleVersionSelectorResolveState resolveState = selectors.get(requested);
if (resolveState == null) {
resolveState = new ModuleVersionSelectorResolveState(dependencyMetaData, idResolver, this);
selectors.put(requested, resolveState);
}
return resolveState;
}
private ModuleVersionSelectorResolveState(
DependencyMetaData dependencyMetaData,
DependencyToComponentIdResolver resolver,
ResolveState resolveState) {
this.dependencyMetaData = dependencyMetaData;
this.resolver = resolver;
this.resolveState = resolveState;
targetModule =
resolveState.getModule(
new DefaultModuleIdentifier(
dependencyMetaData.getRequested().getGroup(),
dependencyMetaData.getRequested().getName()));
}
public void resolve(DependencyMetaData dependency, BuildableComponentIdResolveResult result) {
ModuleVersionSelector module = dependency.getRequested();
DefaultDependencyResolveDetails details = new DefaultDependencyResolveDetails(module);
try {
rule.execute(details);
} catch (Throwable e) {
result.failed(new ModuleVersionResolveException(module, e));
return;
}
if (details.isUpdated()) {
DependencyMetaData substitutedDependency =
dependency.withRequestedVersion(details.getTarget());
resolver.resolve(substitutedDependency, result);
result.setSelectionReason(details.getSelectionReason());
return;
}
resolver.resolve(dependency, result);
}
public void resolve(DependencyMetaData dependency, BuildableComponentResolveResult result) {
ModuleVersionSelector requested = dependency.getRequested();
LOGGER.debug("Attempting to resolve {} using repositories {}", requested, repositoryNames);
ModuleComponentIdentifier moduleComponentIdentifier =
new DefaultModuleComponentIdentifier(
requested.getGroup(), requested.getName(), requested.getVersion());
ModuleVersionIdentifier moduleVersionIdentifier =
new DefaultModuleVersionIdentifier(
requested.getGroup(), requested.getName(), requested.getVersion());
List<Throwable> errors = new ArrayList<Throwable>();
List<ComponentMetaDataResolveState> resolveStates =
new ArrayList<ComponentMetaDataResolveState>();
for (ModuleComponentRepository repository : repositories) {
resolveStates.add(
new ComponentMetaDataResolveState(
dependency, moduleComponentIdentifier, repository, componentChooser));
}
final RepositoryChainModuleResolution latestResolved = findBestMatch(resolveStates, errors);
if (latestResolved != null) {
LOGGER.debug("Using {} from {}", latestResolved.module.getId(), latestResolved.repository);
for (Throwable error : errors) {
LOGGER.debug("Discarding resolve failure.", error);
}
result.resolved(metaDataFactory.transform(latestResolved));
return;
}
if (!errors.isEmpty()) {
result.failed(new ModuleVersionResolveException(moduleComponentIdentifier, errors));
} else {
for (ComponentMetaDataResolveState resolveState : resolveStates) {
resolveState.applyTo(result);
}
result.notFound(moduleVersionIdentifier);
}
}
// TODO This should be replaced by getRequested()
public ModuleVersionSelector getRequestedModuleVersion() {
return dependencyMetaData.getRequested();
}