/**
* This is the starting point of the compiler.
*
* @param args Command line arguments to control the compiler
*/
public static void main(String[] args) {
try {
run(args);
} catch (FileNotFoundException e) {
System.err.println("FILE NOT FOUND: " + e.getLocalizedMessage());
System.exit(FILE_NOT_FOUND_ERROR);
} catch (ParseException e) {
System.err.println("PARSE ERROR: " + e.getLocalizedMessage());
System.exit(PARSE_ERROR);
} catch (ShadowException e) {
System.err.println("ERROR IN FILE: " + e.getLocalizedMessage());
e.printStackTrace();
System.exit(TYPE_CHECK_ERROR);
} catch (IOException e) {
System.err.println("FILE DEPENDENCY ERROR: " + e.getLocalizedMessage());
e.printStackTrace();
System.exit(TYPE_CHECK_ERROR);
} catch (org.apache.commons.cli.ParseException e) {
System.err.println("COMMAND LINE ERROR: " + e.getLocalizedMessage());
Arguments.printHelp();
System.exit(COMMAND_LINE_ERROR);
} catch (ConfigurationException e) {
System.err.println("CONFIGURATION ERROR: " + e.getLocalizedMessage());
Arguments.printHelp();
System.exit(CONFIGURATION_ERROR);
} catch (TypeCheckException e) {
System.err.println("TYPE CHECK ERROR: " + e.getLocalizedMessage());
System.exit(TYPE_CHECK_ERROR);
} catch (CompileException e) {
System.err.println("COMPILATION ERROR: " + e.getLocalizedMessage());
System.exit(COMPILE_ERROR);
}
}
/**
* typecheck and then compile this rule unless either action has been tried before
*
* @return true if the rule successfully type checks and then compiles under this call or a
* previous call or false if either operation has previously failed or fails under this call.
*/
private synchronized boolean ensureTypeCheckedCompiled() {
if (checkFailed) {
return false;
}
if (!checked) {
// ensure we don't trigger any code inside the type check or compile
// n.b. we may still allow recursive triggering while executing
boolean triggerEnabled = false;
String detail = "";
try {
typeCheck();
compile();
checked = true;
installed();
} catch (TypeWarningException te) {
checkFailed = true;
if (Transformer.isVerbose()) {
StringWriter stringWriter = new StringWriter();
PrintWriter writer = new PrintWriter(stringWriter);
writer.println(
"Rule.ensureTypeCheckedCompiled : warning type checking rule " + getName());
te.printStackTrace(writer);
detail = stringWriter.toString();
System.out.println(detail);
}
} catch (TypeException te) {
checkFailed = true;
StringWriter stringWriter = new StringWriter();
PrintWriter writer = new PrintWriter(stringWriter);
writer.println("Rule.ensureTypeCheckedCompiled : error type checking rule " + getName());
te.printStackTrace(writer);
detail = stringWriter.toString();
System.out.println(detail);
} catch (CompileException ce) {
checkFailed = true;
StringWriter stringWriter = new StringWriter();
PrintWriter writer = new PrintWriter(stringWriter);
writer.println("Rule.ensureTypeCheckedCompiled : error compiling rule " + getName());
ce.printStackTrace(writer);
detail = stringWriter.toString();
System.out.println(detail);
}
ruleScript.recordCompile(triggerClass, loader, !checkFailed, detail);
return !checkFailed;
}
return true;
}
public void testStrictTypingCompilationWithVarInsideConstructor() {
ParserContext ctx = new ParserContext();
ctx.addInput("$likes", String.class);
ctx.addInput("results", List.class);
ctx.addImport(Cheese.class);
ctx.setStrongTyping(true);
Serializable expr = null;
try {
expr =
MVEL.compileExpression("Cheese c = new Cheese( $likes, 15 );\nresults.add( c ); ", ctx);
} catch (CompileException e) {
e.printStackTrace();
fail("This should not fail:\n" + e.getMessage());
}
List results = new ArrayList();
Map vars = new HashMap();
vars.put("$likes", "stilton");
vars.put("results", results);
executeExpression(expr, vars);
assertEquals(new Cheese("stilton", 15), results.get(0));
}