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1
5 package com.opensymphony.workflow.util.beanshell;
6
7 import bsh.EvalError;
8 import bsh.Interpreter;
9 import bsh.TargetError;
10
11 import com.opensymphony.workflow.*;
12 import com.opensymphony.workflow.spi.WorkflowEntry;
13
14 import org.apache.commons.logging.Log;
15 import org.apache.commons.logging.LogFactory;
16
17 import java.util.Map  ;
18
19
20
26 public class BeanShellRegister implements Register {
27
29 private static final Log log = LogFactory.getLog(BeanShellRegister.class);
30
31
33 public Object registerVariable(WorkflowContext context, WorkflowEntry entry, Map args) throws WorkflowException {
34 String script = (String ) args.get(AbstractWorkflow.BSH_SCRIPT);
35
36 Interpreter i = new Interpreter();
37 ClassLoader loader = Thread.currentThread().getContextClassLoader();
38
39 try {
40 if (loader != null) {
41 i.setClassLoader(loader);
42 }
43
44 i.set("entry", entry);
45 i.set("context", context);
46
47 Object o = i.eval(script);
48
49 return o;
50 } catch (TargetError targetError) {
51 if (targetError.getTarget() instanceof WorkflowException) {
52 throw (WorkflowException) targetError.getTarget();
53 } else {
54 String message = "Could not get object registered in to variable map";
55 throw new WorkflowException(message, targetError.getTarget());
56 }
57 } catch (EvalError e) {
58 String message = "Could not get object registered in to variable map";
59 throw new WorkflowException(message, e);
60 } finally {
61 if (loader != null) {
62 i.setClassLoader(null);
63 }
64 }
65 }
66 }
67 |
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