Examples of org.apache.bsf.BSFException

org.apache.bsf.BSFException
If something goes wrong while doing some scripting stuff, one of these is thrown. The integer code indicates what's wrong and the message may give more details. The reason one exception with multiple meanings (via the code) [instead of multiple exception types] is used is due to the interest to keep the run-time size small. @author Sanjiva Weerawarana

    @Override
    public void exec(String file, int line, int col, Object expr) throws BSFException {
        try {
            evaler.parse(runtime, expr.toString(), file, line).run();
        } catch (Exception excptn) {
            throw new BSFException(BSFException.REASON_EXECUTION_ERROR, "Exception", excptn);
        }
    }

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    public Object call(Object recv, String method, Object[] args) throws BSFException {
        try {
          return JavaEmbedUtils.invokeMethod(runtime, recv, method, args, Object.class);
        } catch (Exception excptn) {
            throw new BSFException(BSFException.REASON_EXECUTION_ERROR, excptn.getMessage(), excptn);
        }
    }

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            // corrected the situation by aborting the loop and
            // a long stacktrace would end up on the user's console
            throw (Error) t;
        }
        else {
            throw new BSFException(BSFException.REASON_OTHER_ERROR,
                                   "JavaScript Error: " + message,
                                   target);
        }
    }

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     * The object may be null to indicate the global namespace of the
     * interpreter.
     * @param object may be null for the global namespace.
     */
    public Object call(Object object, String name, Object[] args) throws BSFException {
        throw new BSFException("The call method is not yet supported for SimpleMethods");
    }

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    @Override
    public Object apply(String source, int lineNo, int columnNo, Object funcBody, Vector namesVec, Vector argsVec) throws BSFException {
        //if (namesVec.size() != argsVec.size()) throw new BSFException("number of params/names mismatch");
        //if (!(funcBody instanceof String)) throw new BSFException("apply: function body must be a string");


        throw new BSFException("The apply method is not yet supported for simple-methods");
    }

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        throw new BSFException("The apply method is not yet supported for simple-methods");
    }


    public Object eval(String source, int lineNo, int columnNo, Object expr) throws BSFException {
        if (!(expr instanceof String)) throw new BSFException("simple-method expression must be a string");


        //right now only supports one method per file, so get all methods and just run the first...
        Map<String, SimpleMethod> simpleMethods = null;
        try {
            simpleMethods = SimpleMethod.getDirectSimpleMethods(source, (String) expr, "<bsf source>");
        } catch (MiniLangException e) {
            throw new BSFException("Error loading/parsing simple-method XML source: " + e.getMessage());
        }
        Set<String> smNames = simpleMethods.keySet();
        if (smNames.size() == 0) throw new BSFException("Did not find any simple-methods in the file");


        String methodName = smNames.iterator().next();
        if (smNames.size() > 1) Debug.logWarning("Found more than one simple-method in the file, running the [" + methodName + "] method, you should remove all but one method from this file", module);


        SimpleMethod simpleMethod = simpleMethods.get(methodName);

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        // declare the bsf manager for callbacks, etc.
        try {
            interpreter.set("bsf", mgr);
        } catch (EvalError e) {
            throw new BSFException("bsh internal error: "+e.toString());
        }


        for(int i=0; i<declaredBeans.size(); i++) {
            BSFDeclaredBean bean = (BSFDeclaredBean)declaredBeans.get(i);
            declareBean(bean);

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    public Object call(Object object, String name, Object[] args) throws BSFException {
        if (object == null) {
            try {
                object = interpreter.get("global");
            } catch (EvalError e) {
                throw new BSFException("bsh internal error: "+e.toString());
            }
        }


        if (object instanceof bsh.This) {
            try {
                return ((bsh.This)object).invokeMethod(name, args);
            } catch (InterpreterError e) {
                throw new BSFException("BeanShell interpreter internal error: "+e);
            } catch (TargetError e2) {
                throw new BSFException("The application script threw an exception: " + e2.getTarget());
            } catch (EvalError e3) {
                throw new BSFException("BeanShell script error: "+e3);
            }
        } else {
            throw new BSFException("Cannot invoke method: " + name +
            ". Object: "+object +" is not a BeanShell scripted object.");
        }
    }

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     * arguments.
     */
    @SuppressWarnings("unchecked")
    @Override
    public Object apply(String source, int lineNo, int columnNo, Object funcBody, Vector namesVec, Vector argsVec) throws BSFException {
        if (namesVec.size() != argsVec.size()) throw new BSFException("number of params/names mismatch");
        if (!(funcBody instanceof String)) throw new BSFException("apply: function body must be a string");


        String [] names = new String [ namesVec.size() ];
        namesVec.copyInto(names);
        Object [] args = new String [ argsVec.size() ];
        argsVec.copyInto(args);


        try {
            if (!installedApplyMethod) {
                interpreter.eval(bsfApplyMethod);
                installedApplyMethod = true;
            }


            bsh.This global = (bsh.This)interpreter.get("global");
            return global.invokeMethod("_bsfApply", new Object [] { names, args, (String)funcBody });


        } catch (InterpreterError e) {
            throw new BSFException("BeanShell interpreter internal error: " + e + sourceInfo(source,lineNo,columnNo));
        } catch (TargetError e2) {
            throw new BSFException("The application script threw an exception: " + e2.getTarget() + sourceInfo(source,lineNo,columnNo));
        } catch (EvalError e3) {
            throw new BSFException("BeanShell script error: " + e3 + sourceInfo(source,lineNo,columnNo));
        }
    }

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            throw new BSFException("BeanShell script error: " + e3 + sourceInfo(source,lineNo,columnNo));
        }
    }


    public Object eval(String source, int lineNo, int columnNo, Object expr) throws BSFException {
        if (!(expr instanceof String)) throw new BSFException("BeanShell expression must be a string");


        try {
            //return interpreter.eval(((String) expr));


            Interpreter.ParsedScript script = null;


            if (UtilValidate.isNotEmpty(source)) {
                script = parsedScripts.get(source);
                if (script == null) {
                    synchronized (OfbizBshBsfEngine.class) {
                        script = parsedScripts.get(source);
                        if (script == null) {
                            script = interpreter.parseScript(source, new StringReader((String) expr));
                            Debug.logVerbose("Caching BSH script at: " + source, module);
                            parsedScripts.put(source, script);
                        }
                    }
                }
            } else {
                script = interpreter.parseScript(source, new StringReader((String) expr));
            }


            return interpreter.evalParsedScript(script);
        } catch (InterpreterError e) {
            throw new BSFException("BeanShell interpreter internal error: "+ e + sourceInfo(source,lineNo,columnNo));
        } catch (TargetError e2) {
            Debug.logError(e2, "Error thrown in BeanShell script called through BSF at: " + sourceInfo(source,lineNo,columnNo), module);
            //Debug.logError(e2.getTarget(), module);
            throw new BSFException("The application script threw an exception: " + e2 + " " + sourceInfo(source,lineNo,columnNo));
        } catch (EvalError e3) {
            throw new BSFException("BeanShell script error: " + e3 + sourceInfo(source,lineNo,columnNo));
        }
    }

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