@Override
public HibNodeToken newNodeToken(
final GraphProcess process,
final Node node,
final ExecutionType executionType,
final List<ArcToken> parents,
final NodeToken envSource) {
// Here we setup the token attributes for the new node
// If the node has no predecessors, it will have no attributes
// If it has only one processor (or only one processor with attributes)
// it will inherit the attributes of that one node
// Otherwise, the attributes of all predecessor nodes will get merged into
// a single set.
List<ArcToken> envParents = envSource == null ? parents : envSource.getParentTokens();
HibNodeToken attrSetToken = null;
Map<String, String> attrMap = new HashMap<String, String>();
Map<String, Object> transientAttributes = new HashMap<String, Object>();
boolean isMerge = false;
for (ArcToken arcToken : envParents) {
HibNodeToken parent = (HibNodeToken) arcToken.getParentToken();
if (parent.getAttrSetToken() == null) {
continue;
}
if (attrSetToken == null) {
attrSetToken = parent.getAttrSetToken();
} else if (!isMerge) {
attrMap.putAll(attrSetToken.getAttrMap());
isMerge = true;
}
if (isMerge) {
attrMap.putAll(parent.getAttrSetToken().getAttrMap());
}
Env mergeEnv = parent.getEnv();
for (String name : mergeEnv.getTransientAttributeNames()) {
transientAttributes.put(name, mergeEnv.getTransientAttribute(name));
}
}
HibNodeToken token =
new HibNodeToken(
(HibGraphProcess) process,
(HibNodeRef) node,
attrSetToken,
executionType,
attrMap,
parents,
transientAttributes);
session.save(token);
return token;
}
/**
* @see
* com.googlecode.sarasvati.test.framework.TokenOnNodePredicate#matches(com.googlecode.sarasvati.NodeToken)
*/
@Override
public boolean matches(final NodeToken token) {
if (super.matches(token)) {
for (final ArcToken parent : token.getParentTokens()) {
if (parent.getParentToken().getTokenSetMember(tokenSetName) != null) {
return true;
}
}
}
return false;
}
public NodeToken backtrackDeadEnd(final NodeToken token) {
token.markBacktracked();
NodeTokenEvent.fireBacktrackedEvent(engine, token);
List<ArcToken> parents = new ArrayList<ArcToken>(token.getParentTokens().size());
for (ArcToken parent : token.getParentTokens()) {
parent.markBacktracked();
ArcTokenEvent.fireBacktrackedEvent(engine, parent);
ArcToken backtrackArcToken =
engine
.getFactory()
.newArcToken(token.getProcess(), parent.getArc(), ExecutionType.UTurn, token);
ArcTokenEvent.fireCreatedEvent(engine, backtrackArcToken);
token.getChildTokens().add(backtrackArcToken);
parents.add(backtrackArcToken);
shareTokenSets(backtrackArcToken, parent);
}
NodeToken backtrackToken =
engine
.getFactory()
.newNodeToken(
token.getProcess(), token.getNode(), ExecutionType.Forward, parents, token);
NodeTokenEvent.fireCreatedEvent(engine, backtrackToken);
token.getProcess().addNodeToken(backtrackToken);
shareTokenSets(backtrackToken, token);
for (ArcToken parent : parents) {
parent.markProcessed();
ArcTokenEvent.fireProcessedEvent(engine, parent);
parent.markComplete(backtrackToken);
ArcTokenEvent.fireCompletedEvent(engine, parent);
}
reactivateTokenSets();
return backtrackToken;
}
public boolean isStartTokenNode() {
return token != null && token.getParentTokens().isEmpty() && token.getNode().isStart();
}