public boolean doTypeCheck()

in taverna-workflowmodel-impl/src/main/java/org/apache/taverna/workflowmodel/impl/ProcessorImpl.java [208:273]
36 lines of code
10 McCabe index (conditional complexity)

	public boolean doTypeCheck() throws IterationTypeMismatchException,
			InvalidDataflowException {
		// Check for any nested dataflows, they should all be valid
		for (Activity<?> activity : getActivityList())
			if (activity instanceof NestedDataflow) {
				NestedDataflow nestedDataflowActivity = (NestedDataflow) activity;
				Dataflow nestedDataflow = nestedDataflowActivity
						.getNestedDataflow();
				DataflowValidationReport validity = nestedDataflow
						.checkValidity();
				if (!validity.isValid())
					throw new InvalidDataflowException(nestedDataflow, validity);
			}

		/*
		 * Check whether all our input ports have inbound links
		 */

		Map<String, Integer> inputDepths = new HashMap<>();
		for (ProcessorInputPortImpl input : inputPorts) {
			if (input.getIncomingLink() == null)
				return false;
			if (input.getIncomingLink().getResolvedDepth() == -1)
				/*
				 * Incoming link hasn't been resolved yet, can't do this
				 * processor at the moment
				 */
				return false;

			// Get the conceptual resolved depth of the datalink
			inputDepths.put(input.getName(), input.getIncomingLink()
					.getResolvedDepth());
			/*
			 * Configure the filter with the finest grained item from the link
			 * source
			 */
			input.setFilterDepth(input.getIncomingLink().getSource()
					.getGranularDepth());
		}

		/*
		 * Got here so we have all the inputs, now test whether the iteration
		 * strategy typechecks correctly
		 */

		try {
			this.resultWrappingDepth = iterationStack
					.getIterationDepth(inputDepths);
			for (BasicEventForwardingOutputPort output : outputPorts)
				for (DatalinkImpl outgoingLink : output.outgoingLinks)
					// Set the resolved depth on each output edge
					outgoingLink.setResolvedDepth(this.resultWrappingDepth
							+ output.getDepth());
		} catch (MissingIterationInputException e) {
			/*
			 * This should never happen as we only get here if we've already
			 * checked that all the inputs have been provided. If it does happen
			 * we've got some deeper issues.
			 */
			logger.error(e);
			return false;
		}

		// If we get to here everything has been configured appropriately
		return true;
	}