public static Map<JobVertexID, ExecutionJobVertex> includeLegacyJobVertexIDs(
Map<JobVertexID, ExecutionJobVertex> tasks) {
Map<JobVertexID, ExecutionJobVertex> expanded = new HashMap<>(2 * tasks.size());
// first include all new ids
expanded.putAll(tasks);
// now expand and add legacy ids
for (ExecutionJobVertex executionJobVertex : tasks.values()) {
if (null != executionJobVertex) {
JobVertex jobVertex = executionJobVertex.getJobVertex();
if (null != jobVertex) {
List<JobVertexID> alternativeIds = jobVertex.getIdAlternatives();
for (JobVertexID jobVertexID : alternativeIds) {
ExecutionJobVertex old = expanded.put(jobVertexID, executionJobVertex);
Preconditions.checkState(
null == old || old.equals(executionJobVertex),
"Ambiguous jobvertex id detected during expansion to legacy ids.");
}
}
}
}
return expanded;
}
