public void registerProcess(Process process) {
Process existingProcess = getProcess(process.getOwner(), process.getID());
// is there already a process registered for the ID?
if (existingProcess == null) {
synchronized (mProcesses) {
mProcesses.addFirst(process);
}
} else {
// maybe it is the same process?
if (existingProcess != process) {
throw new RuntimeException(
this
+ " - Process ID "
+ process.getID()
+ " already in use for "
+ existingProcess
+ ". Can not use it for "
+ process
+ ".");
}
}
}
/** Returns a process if it is changeable by the entity and has the given process number. */
public Process getProcess(Identity owner, int processID) {
synchronized (mProcesses) {
if (mProcesses != null) {
for (Process process : mProcesses) {
if (process.getID() == processID) {
// do we filter for owners?
if (owner != null) {
// check if the entities are the same
if (process.isChangableBy(owner)) {
return process;
}
} else {
return process;
}
}
}
}
}
return null;
}