/** {@inheritDoc} */
@Override
protected void computeChildren(final ChildObserver<P> observer, final TaskListener listener)
throws IOException, InterruptedException {
final BranchProjectFactory<P, R> _factory = getProjectFactory();
for (final SCMSource source : getSCMSources()) {
source.fetch(
new SCMHeadObserver() {
@Override
public void observe(@NonNull SCMHead head, @NonNull SCMRevision revision) {
Branch branch = newBranch(source, head);
String rawName = branch.getName();
String encodedName = branch.getEncodedName();
P project = observer.shouldUpdate(encodedName);
if (project != null) {
if (!_factory.isProject(project)) {
listener
.getLogger()
.println("Detected unsupported subitem " + project + ", skipping");
return;
}
boolean needSave = !branch.equals(_factory.getBranch(project));
_factory.decorate(_factory.setBranch(project, branch));
if (revision.isDeterministic()) {
SCMRevision lastBuild = _factory.getRevision(project);
if (!revision.equals(lastBuild)) {
listener
.getLogger()
.println(
"Changes detected in "
+ rawName
+ " ("
+ lastBuild
+ " → "
+ revision
+ ")");
needSave = true;
scheduleBuild(_factory, project, revision, listener, rawName);
} else {
listener
.getLogger()
.println(
"No changes detected in " + rawName + " (still at " + revision + ")");
}
} else {
// fall back to polling when we have a non-deterministic revision/hash.
SCMTriggerItem scmProject =
SCMTriggerItem.SCMTriggerItems.asSCMTriggerItem(project);
if (scmProject != null) {
PollingResult pollingResult = scmProject.poll(listener);
if (pollingResult.hasChanges()) {
listener.getLogger().println("Changes detected in " + rawName);
needSave = true;
scheduleBuild(_factory, project, revision, listener, rawName);
} else {
listener.getLogger().println("No changes detected in " + rawName);
}
}
}
if (needSave) {
try {
project.save();
} catch (IOException e) {
e.printStackTrace(listener.error("Could not save changes to " + rawName));
}
}
return;
}
if (!observer.mayCreate(encodedName)) {
listener.getLogger().println("Ignoring duplicate branch project " + rawName);
return;
}
project = _factory.newInstance(branch);
if (!project.getName().equals(encodedName)) {
throw new IllegalStateException(
"Name of created project "
+ project
+ " did not match expected "
+ encodedName);
}
if (!rawName.equals(encodedName) && project.getDisplayName().equals(encodedName)) {
try {
project.setDisplayName(rawName);
} catch (IOException e) {
e.printStackTrace(listener.error("Could not save changes to " + rawName));
}
}
_factory.decorate(project);
observer.created(project);
scheduleBuild(_factory, project, revision, listener, rawName);
}
},
listener);
}
}
