/**
* Compose write and append print updates. The type write or append as well as the order of the
* updates are taken into account.
*
* @param compAPI
*/
private void composeAppend(PluginCompositionAPI compAPI) {
for (Location l : compAPI.getAffectedLocations()) {
if (!FILE_OUTPUT_FUNC_NAME.equals(l.name)) continue;
LinkedList<Element> elems1 = new LinkedList<>();
LinkedList<Element> elems2 = new LinkedList<>();
Set<Element> contributingAgents = new HashSet<Element>();
Set<ScannerInfo> contributingNodes = new HashSet<ScannerInfo>();
String action = APPEND_ACTION;
// if the second set does not have a basic update,
// add all the updates from the first set as well
if (!compAPI.isLocUpdatedWithActions(2, l, Update.UPDATE_ACTION)) {
for (Update update : compAPI.getLocUpdates(1, l)) {
if (APPEND_ACTION.equals(update.action) || WRITE_ACTION.equals(update.action)) {
Element value = update.value;
if (!(update.value instanceof ListElement))
value = new ListElement(Arrays.asList(new Element[] {value}));
ListElement list = (ListElement) value;
elems1.addAll(list.getList());
contributingAgents.addAll(update.agents);
contributingNodes.addAll(update.sources);
}
if (WRITE_ACTION.equals(update.action)) action = WRITE_ACTION;
}
}
for (Update update : compAPI.getLocUpdates(2, l)) {
if (APPEND_ACTION.equals(update.action) || WRITE_ACTION.equals(update.action)) {
Element value = update.value;
if (!(update.value instanceof ListElement))
value = new ListElement(Arrays.asList(new Element[] {value}));
ListElement list = (ListElement) value;
elems2.addAll(list.getList());
contributingAgents.addAll(update.agents);
contributingNodes.addAll(update.sources);
}
if (WRITE_ACTION.equals(update.action)) {
action = WRITE_ACTION;
elems1.clear();
}
}
if (!elems1.isEmpty() || !elems2.isEmpty()) {
LinkedList<Element> outputResult = elems1;
if (outputResult.isEmpty()) outputResult = elems2;
else if (!elems2.isEmpty()) {
outputResult = new LinkedList<>();
outputResult.addAll(elems1);
outputResult.addAll(elems2);
}
compAPI.addComposedUpdate(
new Update(
l,
new ListElement(new ArrayList<Element>(outputResult)),
action,
contributingAgents,
contributingNodes),
this);
}
}
}
private void composePrint(PluginCompositionAPI compAPI) {
String outputResult1 = "";
String outputResult2 = "";
Set<Element> contributingAgents = new HashSet<Element>();
Set<ScannerInfo> contributingNodes = new HashSet<ScannerInfo>();
// First, add all the updates in the second set
for (Update u : compAPI.getLocUpdates(2, PRINT_OUTPUT_FUNC_LOC)) {
if (u.action.equals(PRINT_ACTION)) {
if (!outputResult2.isEmpty()) outputResult2 += '\n';
outputResult2 += u.value.toString();
contributingAgents.addAll(u.agents);
contributingNodes.addAll(u.sources);
} else compAPI.addComposedUpdate(u, this);
}
// if the second set does not have a basic update,
// add all the updates from the first set as well
if (!compAPI.isLocUpdatedWithActions(2, PRINT_OUTPUT_FUNC_LOC, Update.UPDATE_ACTION)) {
for (Update u : compAPI.getLocUpdates(1, PRINT_OUTPUT_FUNC_LOC)) {
if (u.action.equals(PRINT_ACTION)) {
if (!outputResult1.isEmpty()) outputResult1 += '\n';
outputResult1 += u.value.toString();
contributingAgents.addAll(u.agents);
contributingNodes.addAll(u.sources);
} else compAPI.addComposedUpdate(u, this);
}
}
if (!outputResult1.isEmpty() || !outputResult2.isEmpty()) {
String outputResult = outputResult1;
if (outputResult.isEmpty()) outputResult = outputResult2;
else if (!outputResult2.isEmpty()) outputResult = outputResult1 + '\n' + outputResult2;
compAPI.addComposedUpdate(
new Update(
PRINT_OUTPUT_FUNC_LOC,
new StringElement(outputResult),
PRINT_ACTION,
contributingAgents,
contributingNodes),
this);
}
}