public static CompiledChainImpl buildChain(
AutomationService service, Class<?> in, OperationParameters[] operations)
throws OperationNotFoundException, InvalidChainException {
if (operations.length == 0) {
throw new InvalidChainException("Null operation chain.");
}
OperationParameters params = operations[0];
CompiledChainImpl invocation =
new CompiledChainImpl(service.getOperation(params.id()), params.map());
CompiledChainImpl last = invocation;
for (int i = 1; i < operations.length; i++) {
params = operations[i];
last = new CompiledChainImpl(last, service.getOperation(params.id()), params.map());
}
// find the best matching path in the chain
if (!invocation.initializePath(in)) {
throw new InvalidChainException(
"Cannot find any valid path in operation chain - no method found for operation '"
+ opId
+ "' and for first input type '"
+ in.getName()
+ "'");
}
return invocation;
}
public AutomationInfo(AutomationService service) {
ops = service.getDocumentation();
// build a map for easy lookup
Map<String, OperationDocumentation> map = new HashMap<String, OperationDocumentation>();
for (OperationDocumentation doc : ops) {
map.put(doc.id, doc);
}
chains = new ArrayList<OperationDocumentation>();
for (OperationChain chain : service.getOperationChains()) {
OperationDocumentation doc = new OperationDocumentation(chain.getId());
doc.description = chain.getDescription();
doc.category = "Chain";
doc.label = doc.id;
doc.params = Collections.emptyList();
// compute chain signature
List<OperationParameters> ops = chain.getOperations();
if (ops.isEmpty()) {
doc.signature = new String[] {"void", "void"};
} else if (ops.size() == 1) {
OperationDocumentation opdoc = map.get(ops.get(0).id());
doc.signature = opdoc.signature;
} else {
ArrayList<String[]> sigs = new ArrayList<String[]>();
for (OperationParameters o : ops) {
sigs.add(map.get(o.id()).signature);
}
String[] head = sigs.get(0);
ArrayList<String> rs = new ArrayList<String>();
for (int i = 0; i < head.length; i += 2) {
String in = head[i];
String out = head[i + 1];
List<String> result = new ArrayList<String>();
checkPath(out, sigs, 1, result);
for (String r : result) {
rs.add(in);
rs.add(r);
}
}
doc.signature = rs.toArray(new String[rs.size()]);
}
chains.add(doc);
}
}
