protected void addVariables(
HistoricProcessInstanceQuery processInstanceQuery, List<QueryVariable> variables) {
RestResponseFactory responseFactory =
getApplication(ActivitiRestServicesApplication.class).getRestResponseFactory();
for (QueryVariable variable : variables) {
if (variable.getVariableOperation() == null) {
throw new ActivitiIllegalArgumentException(
"Variable operation is missing for variable: " + variable.getName());
}
if (variable.getValue() == null) {
throw new ActivitiIllegalArgumentException(
"Variable value is missing for variable: " + variable.getName());
}
boolean nameLess = variable.getName() == null;
Object actualValue = responseFactory.getVariableValue(variable);
// A value-only query is only possible using equals-operator
if (nameLess && variable.getVariableOperation() != QueryVariableOperation.EQUALS) {
throw new ActivitiIllegalArgumentException(
"Value-only query (without a variable-name) is only supported when using 'equals' operation.");
}
switch (variable.getVariableOperation()) {
case EQUALS:
if (nameLess) {
processInstanceQuery.variableValueEquals(actualValue);
} else {
processInstanceQuery.variableValueEquals(variable.getName(), actualValue);
}
break;
case EQUALS_IGNORE_CASE:
if (actualValue instanceof String) {
processInstanceQuery.variableValueEqualsIgnoreCase(
variable.getName(), (String) actualValue);
} else {
throw new ActivitiIllegalArgumentException(
"Only string variable values are supported when ignoring casing, but was: "
+ actualValue.getClass().getName());
}
break;
case NOT_EQUALS:
processInstanceQuery.variableValueNotEquals(variable.getName(), actualValue);
break;
case LIKE:
if (actualValue instanceof String) {
processInstanceQuery.variableValueLike(variable.getName(), (String) actualValue);
} else {
throw new ActivitiIllegalArgumentException(
"Only string variable values are supported for like, but was: "
+ actualValue.getClass().getName());
}
break;
case GREATER_THAN:
processInstanceQuery.variableValueGreaterThan(variable.getName(), actualValue);
break;
case GREATER_THAN_OR_EQUALS:
processInstanceQuery.variableValueGreaterThanOrEqual(variable.getName(), actualValue);
break;
case LESS_THAN:
processInstanceQuery.variableValueLessThan(variable.getName(), actualValue);
break;
case LESS_THAN_OR_EQUALS:
processInstanceQuery.variableValueLessThanOrEqual(variable.getName(), actualValue);
break;
default:
throw new ActivitiIllegalArgumentException(
"Unsupported variable query operation: " + variable.getVariableOperation());
}
}
}
