Examples with MissingMethodException groovy.lang.MissingMethodException used on opensource projects

Example 11 with MissingMethodException

use of groovy.lang.MissingMethodException in project gradle by gradle.

the class ExtensibleDynamicObjectTest method canCallGroovyDynamicMethods.

@Test
public void canCallGroovyDynamicMethods() {
    DynamicGroovyBean bean = new DynamicGroovyBean();
    DynamicObject object = new ExtensibleDynamicObject(bean, DynamicGroovyBean.class, ThreadGlobalInstantiator.getOrCreate());
    Integer doubled = (Integer) object.invokeMethod("bar", 1);
    assertThat(doubled, equalTo(2));
    try {
        object.invokeMethod("xxx", 1, 2, 3);
        fail();
    } catch (MissingMethodException e) {
        assertThat(e.getMessage(), equalTo("Could not find method xxx() for arguments [1, 2, 3] on object of type " + DynamicGroovyBean.class.getName() + "."));
    }
}

Example 12 with MissingMethodException

use of groovy.lang.MissingMethodException in project groovy-core by groovy.

the class GroovyScriptEngineImpl method eval.

// package-privates
Object eval(Class scriptClass, final ScriptContext ctx) throws ScriptException {
    // Only initialize once.
    if (null == ctx.getAttribute("context", ScriptContext.ENGINE_SCOPE)) {
        // add context to bindings
        ctx.setAttribute("context", ctx, ScriptContext.ENGINE_SCOPE);
        // direct output to ctx.getWriter
        // If we're wrapping with a PrintWriter here,
        // enable autoFlush because otherwise it might not get done!
        final Writer writer = ctx.getWriter();
        ctx.setAttribute("out", (writer instanceof PrintWriter) ? writer : new PrintWriter(writer, true), ScriptContext.ENGINE_SCOPE);
    // Not going to do this after all (at least for now).
    // Scripts can use context.{reader, writer, errorWriter}.
    // That is a modern version of System.{in, out, err} or Console.{reader, writer}().
    //
    //            // New I/O names consistent with ScriptContext and java.io.Console.
    //
    //            ctx.setAttribute("writer", writer, ScriptContext.ENGINE_SCOPE);
    //
    //            // Direct errors to ctx.getErrorWriter
    //            final Writer errorWriter = ctx.getErrorWriter();
    //            ctx.setAttribute("errorWriter", (errorWriter instanceof PrintWriter) ?
    //                                    errorWriter :
    //                                    new PrintWriter(errorWriter),
    //                                    ScriptContext.ENGINE_SCOPE);
    //
    //            // Get input from ctx.getReader
    //            // We don't wrap with BufferedReader here because we expect that if
    //            // the host wants that they do it.  Either way Groovy scripts will
    //            // always have readLine because the GDK supplies it for Reader.
    //            ctx.setAttribute("reader", ctx.getReader(), ScriptContext.ENGINE_SCOPE);
    }
    // Fix for GROOVY-3669: Can't use several times the same JSR-223 ScriptContext for differents groovy script
    if (ctx.getWriter() != null) {
        ctx.setAttribute("out", new PrintWriter(ctx.getWriter(), true), ScriptContext.ENGINE_SCOPE);
    }
    /*
         * We use the following Binding instance so that global variable lookup
         * will be done in the current ScriptContext instance.
         */
    Binding binding = new Binding(ctx.getBindings(ScriptContext.ENGINE_SCOPE)) {

        @Override
        public Object getVariable(String name) {
            synchronized (ctx) {
                int scope = ctx.getAttributesScope(name);
                if (scope != -1) {
                    return ctx.getAttribute(name, scope);
                }
            }
            throw new MissingPropertyException(name, getClass());
        }

        @Override
        public void setVariable(String name, Object value) {
            synchronized (ctx) {
                int scope = ctx.getAttributesScope(name);
                if (scope == -1) {
                    scope = ScriptContext.ENGINE_SCOPE;
                }
                ctx.setAttribute(name, value, scope);
            }
        }
    };
    try {
        // then simply return that class
        if (!Script.class.isAssignableFrom(scriptClass)) {
            return scriptClass;
        } else {
            // it's a script
            Script scriptObject = InvokerHelper.createScript(scriptClass, binding);
            // save all current closures into global closures map
            Method[] methods = scriptClass.getMethods();
            for (Method m : methods) {
                String name = m.getName();
                globalClosures.put(name, new MethodClosure(scriptObject, name));
            }
            MetaClass oldMetaClass = scriptObject.getMetaClass();
            /*
                * We override the MetaClass of this script object so that we can
                * forward calls to global closures (of previous or future "eval" calls)
                * This gives the illusion of working on the same "global" scope.
                */
            scriptObject.setMetaClass(new DelegatingMetaClass(oldMetaClass) {

                @Override
                public Object invokeMethod(Object object, String name, Object args) {
                    if (args == null) {
                        return invokeMethod(object, name, MetaClassHelper.EMPTY_ARRAY);
                    }
                    if (args instanceof Tuple) {
                        return invokeMethod(object, name, ((Tuple) args).toArray());
                    }
                    if (args instanceof Object[]) {
                        return invokeMethod(object, name, (Object[]) args);
                    } else {
                        return invokeMethod(object, name, new Object[] { args });
                    }
                }

                @Override
                public Object invokeMethod(Object object, String name, Object[] args) {
                    try {
                        return super.invokeMethod(object, name, args);
                    } catch (MissingMethodException mme) {
                        return callGlobal(name, args, ctx);
                    }
                }

                @Override
                public Object invokeStaticMethod(Object object, String name, Object[] args) {
                    try {
                        return super.invokeStaticMethod(object, name, args);
                    } catch (MissingMethodException mme) {
                        return callGlobal(name, args, ctx);
                    }
                }
            });
            return scriptObject.run();
        }
    } catch (Exception e) {
        throw new ScriptException(e);
    } finally {
        // Fix for GROOVY-3669: Can't use several times the same JSR-223 ScriptContext for different groovy script
        // Groovy's scripting engine implementation adds those two variables in the binding
        // but should clean up afterwards
        ctx.removeAttribute("context", ScriptContext.ENGINE_SCOPE);
        ctx.removeAttribute("out", ScriptContext.ENGINE_SCOPE);
    }
}

Example 13 with MissingMethodException

use of groovy.lang.MissingMethodException in project gremlin by tinkerpop.

the class GremlinGroovyScriptEngine method callGlobal.

private Object callGlobal(final String name, final Object[] args, final ScriptContext ctx) {
    Closure closure = globalClosures.get(name);
    if (closure != null) {
        return closure.call(args);
    }
    Object value = ctx.getAttribute(name);
    if (value instanceof Closure) {
        return ((Closure) value).call(args);
    } else {
        throw new MissingMethodException(name, getClass(), args);
    }
}

Example 14 with MissingMethodException

use of groovy.lang.MissingMethodException in project gremlin by tinkerpop.

the class GremlinGroovyScriptEngine method eval.

Object eval(final Class scriptClass, final ScriptContext context) throws ScriptException {
    this.checkClearCache();
    context.setAttribute("context", context, ScriptContext.ENGINE_SCOPE);
    java.io.Writer writer = context.getWriter();
    context.setAttribute("out", writer instanceof PrintWriter ? writer : new PrintWriter(writer), ScriptContext.ENGINE_SCOPE);
    Binding binding = new Binding() {

        public Object getVariable(String name) {
            synchronized (context) {
                int scope = context.getAttributesScope(name);
                if (scope != -1) {
                    return context.getAttribute(name, scope);
                }
                throw new MissingPropertyException(name, getClass());
            }
        }

        public void setVariable(String name, Object value) {
            synchronized (context) {
                int scope = context.getAttributesScope(name);
                if (scope == -1) {
                    scope = ScriptContext.ENGINE_SCOPE;
                }
                context.setAttribute(name, value, scope);
            }
        }
    };
    try {
        Script scriptObject = InvokerHelper.createScript(scriptClass, binding);
        Method[] methods = scriptClass.getMethods();
        Map<String, MethodClosure> closures = new HashMap<String, MethodClosure>();
        for (Method m : methods) {
            String name = m.getName();
            closures.put(name, new MethodClosure(scriptObject, name));
        }
        globalClosures.putAll(closures);
        final MetaClass oldMetaClass = scriptObject.getMetaClass();
        scriptObject.setMetaClass(new DelegatingMetaClass(oldMetaClass) {

            public Object invokeMethod(Object object, String name, Object args) {
                if (args == null) {
                    return invokeMethod(object, name, MetaClassHelper.EMPTY_ARRAY);
                } else if (args instanceof Tuple) {
                    return invokeMethod(object, name, ((Tuple) args).toArray());
                } else if (args instanceof Object[]) {
                    return invokeMethod(object, name, (Object[]) args);
                } else {
                    return invokeMethod(object, name, new Object[] { args });
                }
            }

            public Object invokeMethod(Object object, String name, Object[] args) {
                try {
                    return super.invokeMethod(object, name, args);
                } catch (MissingMethodException mme) {
                    return callGlobal(name, args, context);
                }
            }

            public Object invokeStaticMethod(Object object, String name, Object[] args) {
                try {
                    return super.invokeStaticMethod(object, name, args);
                } catch (MissingMethodException mme) {
                    return callGlobal(name, args, context);
                }
            }
        });
        return scriptObject.run();
    } catch (Exception e) {
        throw new ScriptException(e);
    }
}

Example 15 with MissingMethodException

use of groovy.lang.MissingMethodException in project groovy by apache.

the class InvokerHelper method invokePogoMethod.

static Object invokePogoMethod(Object object, String methodName, Object arguments) {
    GroovyObject groovy = (GroovyObject) object;
    boolean intercepting = groovy instanceof GroovyInterceptable;
    try {
        // if it's a pure interceptable object (even intercepting toString(), clone(), ...)
        if (intercepting) {
            return groovy.invokeMethod(methodName, asUnwrappedArray(arguments));
        }
        //else try a statically typed method or a GDK method
        return groovy.getMetaClass().invokeMethod(object, methodName, asArray(arguments));
    } catch (MissingMethodException e) {
        if (e instanceof MissingMethodExecutionFailed) {
            throw (MissingMethodException) e.getCause();
        } else if (!intercepting && e.getMethod().equals(methodName) && object.getClass() == e.getType()) {
            // in case there's nothing else, invoke the object's own invokeMethod()
            return groovy.invokeMethod(methodName, asUnwrappedArray(arguments));
        } else {
            throw e;
        }
    }
}