@Override
protected boolean executeAnalysis(final IProgressMonitor monitor) throws TmfAnalysisException {
/* Get the graph */
TmfGraphBuilderModule graphModule = getGraph();
if (graphModule == null) {
Activator.getInstance()
.logWarning("No graph was found to execute the critical path on"); // $NON-NLS-1$
return true;
}
graphModule.schedule();
monitor.setTaskName(
NLS.bind(Messages.CriticalPathModule_waitingForGraph, graphModule.getName()));
if (!graphModule.waitForCompletion(monitor)) {
Activator.getInstance()
.logInfo(
"Critical path execution: graph building was cancelled. Results may not be accurate."); //$NON-NLS-1$
return false;
}
TmfGraph graph = graphModule.getGraph();
if (graph == null) {
throw new TmfAnalysisException(
"Critical Path analysis: graph "
+ graphModule.getName()
+ " is null"); //$NON-NLS-1$//$NON-NLS-2$
}
/* Get the worker id */
Object workerObj = getParameter(PARAM_WORKER);
if (workerObj == null) {
return false;
}
if (!(workerObj instanceof IGraphWorker)) {
throw new IllegalStateException("Worker parameter must be an IGraphWorker"); // $NON-NLS-1$
}
IGraphWorker worker = (IGraphWorker) workerObj;
TmfVertex head = graph.getHead(worker);
if (head == null) {
/* Nothing happens with this worker, return an empty graph */
fCriticalPath = new TmfGraph();
return true;
}
ICriticalPathAlgorithm cp = getAlgorithm(graph);
try {
fCriticalPath = cp.compute(head, null);
return true;
} catch (CriticalPathAlgorithmException e) {
Activator.getInstance().logError(NonNullUtils.nullToEmptyString(e.getMessage()), e);
}
return false;
}
/**
* Copy link of type TYPE between nodes FROM and TO in the graph PATH. The return value is the
* tail node for the new path.
*
* @param criticalPath The graph on which to add the link
* @param graph The original graph on which to calculate critical path
* @param anchor The anchor vertex from the path graph
* @param from The origin vertex in the main graph
* @param to The destination vertex in the main graph
* @param ts The timestamp of the edge
* @param type The type of the edge to create
* @return The destination vertex in the path graph
*/
public TmfVertex copyLink(
TmfGraph criticalPath,
TmfGraph graph,
TmfVertex anchor,
TmfVertex from,
TmfVertex to,
long ts,
TmfEdge.EdgeType type) {
IGraphWorker parentFrom = graph.getParentOf(from);
IGraphWorker parentTo = graph.getParentOf(to);
if (parentTo == null) {
throw new NullPointerException();
}
TmfVertex tmp = new TmfVertex(ts);
criticalPath.add(parentTo, tmp);
if (parentFrom == parentTo) {
anchor.linkHorizontal(tmp).setType(type);
} else {
anchor.linkVertical(tmp).setType(type);
}
return tmp;
}