Example of conditional invocation
Created: 2014-04-03 09:52:41
This workflow demonstrates how nested workflows can be conditionally invoked
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Titles (1)
| Example of conditional invocation |
Descriptions (1)
| This workflow demonstrates how nested workflows can be conditionally invoked |
Dependencies (0)
Inputs (1)
| Name |
Description |
| condition |
The condition that determines which of the two nested workflows is invoked
|
Processors (5)
| Name |
Type |
Description |
| condition_checker |
beanshell |
This service checks if the condition is "true" and if so outputs a value in the pass_flags list and
leaves the fail_flags empty. If the condition is not true then the service outputs a value in the
fail_flags list and leaves the pass_flags empty. Scriptimport java.util.ArrayList;
ArrayList pass_flags = new ArrayList();
ArrayList fail_flags = new ArrayList();
if (condition.equals("true")) {
pass_flags.add(condition);
} else {
fail_flags.add(condition);
}
|
| if_condition_passed |
workflow |
|
| if_condition_failed |
workflow |
|
| Flatten_List |
localworker |
Scriptflatten(inputs, outputs, depth) {
for (i = inputs.iterator(); i.hasNext();) {
element = i.next();
if (element instanceof Collection && depth > 0) {
flatten(element, outputs, depth - 1);
} else {
outputs.add(element);
}
}
}
outputlist = new ArrayList();
flatten(inputlist, outputlist, 1); |
| Merge_String_List_to_a_String |
localworker |
ScriptString seperatorString = "\n";
if (seperator != void) {
seperatorString = seperator;
}
StringBuffer sb = new StringBuffer();
for (Iterator i = stringlist.iterator(); i.hasNext();) {
String item = (String) i.next();
sb.append(item);
if (i.hasNext()) {
sb.append(seperatorString);
}
}
concatenated = sb.toString();
|
Beanshells (1)
| Name |
Description |
Inputs |
Outputs |
| condition_checker |
This service checks if the condition is "true" and if so outputs a value in the pass_flags list and
leaves the fail_flags empty. If the condition is not true then the service outputs a value in the
fail_flags list and leaves the pass_flags empty. |
condition
|
pass_flags
fail_flags
|
Datalinks (7)
| Source |
Sink |
| condition |
condition_checker:condition |
| condition_checker:pass_flags |
if_condition_passed:sentinel |
| condition_checker:fail_flags |
if_condition_failed:sentinel |
| Flatten_List:outputlist |
Merge_String_List_to_a_String:stringlist |
| if_condition_passed:message |
Flatten_List:inputlist |
| if_condition_failed:message |
Flatten_List:inputlist |
| Merge_String_List_to_a_String:concatenated |
message |
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