public void storeWorkflowDefinition(
AbstractWorkflowDefinition<? extends WorkflowState> definition) {
StoredWorkflowDefinition storedDefinition = convert(definition);
MapSqlParameterSource params = new MapSqlParameterSource();
params.addValue("type", definition.getType());
String serializedDefinition = serializeDefinition(storedDefinition);
params.addValue("definition_sha1", sha1(serializedDefinition));
params.addValue("definition", serializedDefinition, sqlVariants.longTextType());
params.addValue("modified_by", executorInfo.getExecutorId());
params.addValue("executor_group", executorInfo.getExecutorGroup());
String sql =
"update nflow_workflow_definition "
+ "set definition = :definition, modified_by = :modified_by, definition_sha1 = :definition_sha1 "
+ "where type = :type and executor_group = :executor_group and definition_sha1 <> :definition_sha1";
int updatedRows = namedJdbc.update(sql, params);
if (updatedRows == 0) {
sql =
"insert into nflow_workflow_definition(type, definition_sha1, definition, modified_by, executor_group) "
+ "values (:type, :definition_sha1, :definition, :modified_by, :executor_group)";
try {
namedJdbc.update(sql, params);
} catch (DataIntegrityViolationException dex) {
logger.debug("Another executor already stored the definition.", dex);
}
}
}
StoredWorkflowDefinition convert(AbstractWorkflowDefinition<? extends WorkflowState> definition) {
StoredWorkflowDefinition resp = new StoredWorkflowDefinition();
resp.type = definition.getType();
resp.description = definition.getDescription();
resp.onError = definition.getErrorState().name();
Map<String, StoredWorkflowDefinition.State> states = new HashMap<>();
for (WorkflowState state : definition.getStates()) {
states.put(
state.name(),
new StoredWorkflowDefinition.State(
state.name(), state.getType().name(), state.getDescription()));
}
for (Entry<String, List<String>> entry : definition.getAllowedTransitions().entrySet()) {
StoredWorkflowDefinition.State state = states.get(entry.getKey());
for (String targetState : entry.getValue()) {
state.transitions.add(targetState);
}
sort(state.transitions);
}
for (Entry<String, WorkflowState> entry : definition.getFailureTransitions().entrySet()) {
StoredWorkflowDefinition.State state = states.get(entry.getKey());
state.onFailure = entry.getValue().name();
}
resp.states = new ArrayList<>(states.values());
sort(resp.states);
return resp;
}