コード例 #1
0
ファイル: WebAppManager.java プロジェクト: kasunbg/jaggery
  public static JaggeryContext clonedJaggeryContext(ServletContext context) {
    JaggeryContext shared = sharedJaggeryContext(context);
    RhinoEngine engine = shared.getEngine();
    Scriptable sharedScope = shared.getScope();
    Context cx = Context.getCurrentContext();
    ScriptableObject instanceScope = (ScriptableObject) cx.newObject(sharedScope);
    instanceScope.setPrototype(sharedScope);
    instanceScope.setParentScope(null);

    JaggeryContext clone = new JaggeryContext();
    clone.setEngine(engine);
    clone.setTenantId(shared.getTenantId());
    clone.setScope(instanceScope);

    clone.addProperty(Constants.SERVLET_CONTEXT, shared.getProperty(Constants.SERVLET_CONTEXT));
    clone.addProperty(LogHostObject.LOG_LEVEL, shared.getProperty(LogHostObject.LOG_LEVEL));
    clone.addProperty(
        FileHostObject.JAVASCRIPT_FILE_MANAGER,
        shared.getProperty(FileHostObject.JAVASCRIPT_FILE_MANAGER));
    clone.addProperty(
        Constants.JAGGERY_CORE_MANAGER, shared.getProperty(Constants.JAGGERY_CORE_MANAGER));
    clone.addProperty(Constants.JAGGERY_INCLUDED_SCRIPTS, new HashMap<String, Boolean>());
    clone.addProperty(Constants.JAGGERY_INCLUDES_CALLSTACK, new Stack<String>());
    clone.addProperty(Constants.JAGGERY_REQUIRED_MODULES, new HashMap<String, ScriptableObject>());

    CommonManager.setJaggeryContext(clone);

    return clone;
  }
コード例 #2
0
ファイル: WebAppManager.java プロジェクト: kasunbg/jaggery
  public static ScriptableObject require(
      Context cx, Scriptable thisObj, Object[] args, Function funObj)
      throws ScriptException, IOException {
    String functionName = "require";
    int argsCount = args.length;
    if (argsCount != 1) {
      HostObjectUtil.invalidNumberOfArgs(
          CommonManager.HOST_OBJECT_NAME, functionName, argsCount, false);
    }
    if (!(args[0] instanceof String)) {
      HostObjectUtil.invalidArgsError(
          CommonManager.HOST_OBJECT_NAME, functionName, "1", "string", args[0], false);
    }

    String moduleId = (String) args[0];
    int dotIndex = moduleId.lastIndexOf(".");
    if (moduleId.length() == dotIndex + 1) {
      String msg = "Invalid file path for require method : " + moduleId;
      log.error(msg);
      throw new ScriptException(msg);
    }

    JaggeryContext jaggeryContext = CommonManager.getJaggeryContext();
    Map<String, ScriptableObject> requiredModules =
        (Map<String, ScriptableObject>)
            jaggeryContext.getProperty(Constants.JAGGERY_REQUIRED_MODULES);
    ScriptableObject object = requiredModules.get(moduleId);
    if (object != null) {
      return object;
    }

    if (dotIndex == -1) {
      object = CommonManager.require(cx, thisObj, args, funObj);
      initModule(cx, jaggeryContext, moduleId, object);
    } else {
      object = (ScriptableObject) cx.newObject(thisObj);
      object.setPrototype(thisObj);
      object.setParentScope(null);
      String ext = moduleId.substring(dotIndex + 1);
      if (ext.equalsIgnoreCase("json")) {
        object = executeScript(jaggeryContext, object, moduleId, true, true, false);
      } else if (ext.equalsIgnoreCase("js")) {
        object = executeScript(jaggeryContext, object, moduleId, false, true, false);
      } else if (ext.equalsIgnoreCase("jag")) {
        object = executeScript(jaggeryContext, object, moduleId, false, false, false);
      } else {
        String msg = "Unsupported file type for require() method : ." + ext;
        log.error(msg);
        throw new ScriptException(msg);
      }
    }
    requiredModules.put(moduleId, object);
    return object;
  }
コード例 #3
0
 @Override
 public void put(String name, Scriptable start, Object value) {
   int info = findInstanceIdInfo(name);
   if (info != 0) {
     if (start == this && isSealed()) {
       throw Context.reportRuntimeError1("msg.modify.sealed", name);
     }
     int attr = (info >>> 16);
     if ((attr & READONLY) == 0) {
       if (start == this) {
         int id = (info & 0xFFFF);
         setInstanceIdValue(id, value);
       } else {
         start.put(name, start, value);
       }
     }
     return;
   }
   if (prototypeValues != null) {
     int id = prototypeValues.findId(name);
     if (id != 0) {
       if (start == this && isSealed()) {
         throw Context.reportRuntimeError1("msg.modify.sealed", name);
       }
       prototypeValues.set(id, start, value);
       return;
     }
   }
   super.put(name, start, value);
 }
コード例 #4
0
 @Override
 public void delete(String name) {
   int info = findInstanceIdInfo(name);
   if (info != 0) {
     // Let the super class to throw exceptions for sealed objects
     if (!isSealed()) {
       int attr = (info >>> 16);
       if ((attr & PERMANENT) == 0) {
         int id = (info & 0xFFFF);
         setInstanceIdValue(id, NOT_FOUND);
       }
       return;
     }
   }
   if (prototypeValues != null) {
     int id = prototypeValues.findId(name);
     if (id != 0) {
       if (!isSealed()) {
         prototypeValues.delete(id);
       }
       return;
     }
   }
   super.delete(name);
 }
コード例 #5
0
 @Override
 public void defineOwnProperty(Context cx, Object key, ScriptableObject desc) {
   if (key instanceof String) {
     String name = (String) key;
     int info = findInstanceIdInfo(name);
     if (info != 0) {
       int id = (info & 0xFFFF);
       if (isAccessorDescriptor(desc)) {
         delete(id); // it will be replaced with a slot
       } else {
         int attr = (info >>> 16);
         Object value = getProperty(desc, "value");
         setInstanceIdValue(id, value == NOT_FOUND ? Undefined.instance : value);
         setAttributes(id, applyDescriptorToAttributeBitset(attr, desc));
         return;
       }
     }
     if (prototypeValues != null) {
       int id = prototypeValues.findId(name);
       if (id != 0) {
         if (isAccessorDescriptor(desc)) {
           prototypeValues.delete(id); // it will be replaced with a slot
         } else {
           int attr = prototypeValues.getAttributes(id);
           Object value = getProperty(desc, "value");
           prototypeValues.set(id, this, value == NOT_FOUND ? Undefined.instance : value);
           prototypeValues.setAttributes(id, applyDescriptorToAttributeBitset(attr, desc));
           return;
         }
       }
     }
   }
   super.defineOwnProperty(cx, key, desc);
 }
コード例 #6
0
 final void setAttributes(int id, int attributes) {
   ScriptableObject.checkValidAttributes(attributes);
   ensureId(id);
   synchronized (this) {
     attributeArray[id - 1] = (short) attributes;
   }
 }
コード例 #7
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
 private static ObjToIntMap getObjectFunctionNames(Scriptable obj) {
   Object[] ids = ScriptableObject.getPropertyIds(obj);
   ObjToIntMap map = new ObjToIntMap(ids.length);
   for (int i = 0; i != ids.length; ++i) {
     if (!(ids[i] instanceof String)) continue;
     String id = (String) ids[i];
     Object value = ScriptableObject.getProperty(obj, id);
     if (value instanceof Function) {
       Function f = (Function) value;
       int length = ScriptRuntime.toInt32(ScriptableObject.getProperty(f, "length"));
       if (length < 0) {
         length = 0;
       }
       map.put(id, length);
     }
   }
   return map;
 }
コード例 #8
0
 static Object lookupQualifiedName(Scriptable scope, String qualifiedName) {
   StringTokenizer st = new StringTokenizer(qualifiedName, ".");
   Object result = scope;
   while (st.hasMoreTokens()) {
     String s = st.nextToken();
     result = ScriptableObject.getProperty((Scriptable) result, s);
     if (result == null || !(result instanceof Scriptable)) break;
   }
   return result;
 }
コード例 #9
0
 @Override
 public void setAttributes(String name, int attributes) {
   ScriptableObject.checkValidAttributes(attributes);
   int info = findInstanceIdInfo(name);
   if (info != 0) {
     int currentAttributes = (info >>> 16);
     if (attributes != currentAttributes) {
       throw new RuntimeException("Change of attributes for this id is not supported");
     }
     return;
   }
   if (prototypeValues != null) {
     int id = prototypeValues.findId(name);
     if (id != 0) {
       prototypeValues.setAttributes(id, attributes);
       return;
     }
   }
   super.setAttributes(name, attributes);
 }
コード例 #10
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
  public static Function getFunction(Scriptable obj, String functionName) {
    Object x = ScriptableObject.getProperty(obj, functionName);
    if (x == Scriptable.NOT_FOUND) {
      // This method used to swallow the exception from calling
      // an undefined method. People have come to depend on this
      // somewhat dubious behavior. It allows people to avoid
      // implementing listener methods that they don't care about,
      // for instance.
      return null;
    }
    if (!(x instanceof Function)) throw ScriptRuntime.notFunctionError(x, functionName);

    return (Function) x;
  }
コード例 #11
0
 final IdFunctionObject createPrecachedConstructor() {
   if (constructorId != 0) throw new IllegalStateException();
   constructorId = obj.findPrototypeId("constructor");
   if (constructorId == 0) {
     throw new IllegalStateException("No id for constructor property");
   }
   obj.initPrototypeId(constructorId);
   if (constructor == null) {
     throw new IllegalStateException(
         obj.getClass().getName()
             + ".initPrototypeId() did not "
             + "initialize id="
             + constructorId);
   }
   constructor.initFunction(obj.getClassName(), ScriptableObject.getTopLevelScope(obj));
   constructor.markAsConstructor(obj);
   return constructor;
 }
コード例 #12
0
    final void initValue(int id, String name, Object value, int attributes) {
      if (!(1 <= id && id <= maxId)) throw new IllegalArgumentException();
      if (name == null) throw new IllegalArgumentException();
      if (value == NOT_FOUND) throw new IllegalArgumentException();
      ScriptableObject.checkValidAttributes(attributes);
      if (obj.findPrototypeId(name) != id) throw new IllegalArgumentException(name);

      if (id == constructorId) {
        if (!(value instanceof IdFunctionObject)) {
          throw new IllegalArgumentException(
              "consructor should be initialized with IdFunctionObject");
        }
        constructor = (IdFunctionObject) value;
        constructorAttrs = (short) attributes;
        return;
      }

      initSlot(id, name, value, attributes);
    }
コード例 #13
0
 protected final void defaultPut(String name, Object value) {
   super.put(name, this, value);
 }
コード例 #14
0
  /** Type-munging for field setting and method invocation. Conforms to LC3 specification */
  static Object coerceTypeImpl(Class<?> type, Object value) {
    if (value != null && value.getClass() == type) {
      return value;
    }

    switch (getJSTypeCode(value)) {
      case JSTYPE_NULL:
        // raise error if type.isPrimitive()
        if (type.isPrimitive()) {
          reportConversionError(value, type);
        }
        return null;

      case JSTYPE_UNDEFINED:
        if (type == ScriptRuntime.StringClass || type == ScriptRuntime.ObjectClass) {
          return "undefined";
        } else {
          reportConversionError("undefined", type);
        }
        break;

      case JSTYPE_BOOLEAN:
        // Under LC3, only JS Booleans can be coerced into a Boolean value
        if (type == Boolean.TYPE
            || type == ScriptRuntime.BooleanClass
            || type == ScriptRuntime.ObjectClass) {
          return value;
        } else if (type == ScriptRuntime.StringClass) {
          return value.toString();
        } else {
          reportConversionError(value, type);
        }
        break;

      case JSTYPE_NUMBER:
        if (type == ScriptRuntime.StringClass) {
          return ScriptRuntime.toString(value);
        } else if (type == ScriptRuntime.ObjectClass) {
          return coerceToNumber(Double.TYPE, value);
        } else if ((type.isPrimitive() && type != Boolean.TYPE)
            || ScriptRuntime.NumberClass.isAssignableFrom(type)) {
          return coerceToNumber(type, value);
        } else {
          reportConversionError(value, type);
        }
        break;

      case JSTYPE_STRING:
        if (type == ScriptRuntime.StringClass || type.isInstance(value)) {
          return value;
        } else if (type == Character.TYPE || type == ScriptRuntime.CharacterClass) {
          // Special case for converting a single char string to a
          // character
          // Placed here because it applies *only* to JS strings,
          // not other JS objects converted to strings
          if (((String) value).length() == 1) {
            return new Character(((String) value).charAt(0));
          } else {
            return coerceToNumber(type, value);
          }
        } else if ((type.isPrimitive() && type != Boolean.TYPE)
            || ScriptRuntime.NumberClass.isAssignableFrom(type)) {
          return coerceToNumber(type, value);
        } else {
          reportConversionError(value, type);
        }
        break;

      case JSTYPE_JAVA_CLASS:
        if (value instanceof Wrapper) {
          value = ((Wrapper) value).unwrap();
        }

        if (type == ScriptRuntime.ClassClass || type == ScriptRuntime.ObjectClass) {
          return value;
        } else if (type == ScriptRuntime.StringClass) {
          return value.toString();
        } else {
          reportConversionError(value, type);
        }
        break;

      case JSTYPE_JAVA_OBJECT:
      case JSTYPE_JAVA_ARRAY:
        if (value instanceof Wrapper) {
          value = ((Wrapper) value).unwrap();
        }
        if (type.isPrimitive()) {
          if (type == Boolean.TYPE) {
            reportConversionError(value, type);
          }
          return coerceToNumber(type, value);
        } else {
          if (type == ScriptRuntime.StringClass) {
            return value.toString();
          } else {
            if (type.isInstance(value)) {
              return value;
            } else {
              reportConversionError(value, type);
            }
          }
        }
        break;

      case JSTYPE_OBJECT:
        if (type == ScriptRuntime.StringClass) {
          return ScriptRuntime.toString(value);
        } else if (type.isPrimitive()) {
          if (type == Boolean.TYPE) {
            reportConversionError(value, type);
          }
          return coerceToNumber(type, value);
        } else if (type.isInstance(value)) {
          return value;
        } else if (type == ScriptRuntime.DateClass && value instanceof NativeDate) {
          double time = ((NativeDate) value).getJSTimeValue();
          // XXX: This will replace NaN by 0
          return new Date((long) time);
        } else if (type.isArray() && value instanceof NativeArray) {
          // Make a new java array, and coerce the JS array components
          // to the target (component) type.
          NativeArray array = (NativeArray) value;
          long length = array.getLength();
          Class<?> arrayType = type.getComponentType();
          Object Result = Array.newInstance(arrayType, (int) length);
          for (int i = 0; i < length; ++i) {
            try {
              Array.set(Result, i, coerceType(arrayType, array.get(i, array)));
            } catch (EvaluatorException ee) {
              reportConversionError(value, type);
            }
          }

          return Result;
        } else if (value instanceof Wrapper) {
          value = ((Wrapper) value).unwrap();
          if (type.isInstance(value)) return value;
          reportConversionError(value, type);
        } else if (type.isInterface() && value instanceof Callable) {
          // Try to use function as implementation of Java interface.
          //
          // XXX: Currently only instances of ScriptableObject are
          // supported since the resulting interface proxies should
          // be reused next time conversion is made and generic
          // Callable has no storage for it. Weak references can
          // address it but for now use this restriction.
          if (value instanceof ScriptableObject) {
            ScriptableObject so = (ScriptableObject) value;
            Object key = Kit.makeHashKeyFromPair(COERCED_INTERFACE_KEY, type);
            Object old = so.getAssociatedValue(key);
            if (old != null) {
              // Function was already wrapped
              return old;
            }
            Context cx = Context.getContext();
            Object glue = InterfaceAdapter.create(cx, type, (Callable) value);
            // Store for later retrival
            glue = so.associateValue(key, glue);
            return glue;
          }
          reportConversionError(value, type);
        } else {
          reportConversionError(value, type);
        }
        break;
    }

    return value;
  }
コード例 #15
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
  static Object js_createAdapter(Context cx, Scriptable scope, Object[] args) {
    int N = args.length;
    if (N == 0) {
      throw ScriptRuntime.typeError0("msg.adapter.zero.args");
    }

    // Expected arguments:
    // Any number of NativeJavaClass objects representing the super-class
    // and/or interfaces to implement, followed by one NativeObject providing
    // the implementation, followed by any number of arguments to pass on
    // to the (super-class) constructor.

    int classCount;
    for (classCount = 0; classCount < N - 1; classCount++) {
      Object arg = args[classCount];
      // We explicitly test for NativeObject here since checking for
      // instanceof ScriptableObject or !(instanceof NativeJavaClass)
      // would fail for a Java class that isn't found in the class path
      // as NativeJavaPackage extends ScriptableObject.
      if (arg instanceof NativeObject) {
        break;
      }
      if (!(arg instanceof NativeJavaClass)) {
        throw ScriptRuntime.typeError2(
            "msg.not.java.class.arg", String.valueOf(classCount), ScriptRuntime.toString(arg));
      }
    }
    Class<?> superClass = null;
    Class<?>[] intfs = new Class[classCount];
    int interfaceCount = 0;
    for (int i = 0; i < classCount; ++i) {
      Class<?> c = ((NativeJavaClass) args[i]).getClassObject();
      if (!c.isInterface()) {
        if (superClass != null) {
          throw ScriptRuntime.typeError2("msg.only.one.super", superClass.getName(), c.getName());
        }
        superClass = c;
      } else {
        intfs[interfaceCount++] = c;
      }
    }

    if (superClass == null) {
      superClass = ScriptRuntime.ObjectClass;
    }

    Class<?>[] interfaces = new Class[interfaceCount];
    System.arraycopy(intfs, 0, interfaces, 0, interfaceCount);
    // next argument is implementation, must be scriptable
    Scriptable obj = ScriptableObject.ensureScriptable(args[classCount]);

    Class<?> adapterClass = getAdapterClass(scope, superClass, interfaces, obj);
    Object adapter;

    int argsCount = N - classCount - 1;
    try {
      if (argsCount > 0) {
        // Arguments contain parameters for super-class constructor.
        // We use the generic Java method lookup logic to find and
        // invoke the right constructor.
        Object[] ctorArgs = new Object[argsCount + 2];
        ctorArgs[0] = obj;
        ctorArgs[1] = cx.getFactory();
        System.arraycopy(args, classCount + 1, ctorArgs, 2, argsCount);
        // TODO: cache class wrapper?
        NativeJavaClass classWrapper = new NativeJavaClass(scope, adapterClass, true);
        NativeJavaMethod ctors = classWrapper.members.ctors;
        int index = ctors.findCachedFunction(cx, ctorArgs);
        if (index < 0) {
          String sig = NativeJavaMethod.scriptSignature(args);
          throw Context.reportRuntimeError2("msg.no.java.ctor", adapterClass.getName(), sig);
        }

        // Found the constructor, so try invoking it.
        adapter = NativeJavaClass.constructInternal(ctorArgs, ctors.methods[index]);
      } else {
        Class<?>[] ctorParms = {ScriptRuntime.ScriptableClass, ScriptRuntime.ContextFactoryClass};
        Object[] ctorArgs = {obj, cx.getFactory()};
        adapter = adapterClass.getConstructor(ctorParms).newInstance(ctorArgs);
      }

      Object self = getAdapterSelf(adapterClass, adapter);
      // Return unwrapped JavaAdapter if it implements Scriptable
      if (self instanceof Wrapper) {
        Object unwrapped = ((Wrapper) self).unwrap();
        if (unwrapped instanceof Scriptable) {
          if (unwrapped instanceof ScriptableObject) {
            ScriptRuntime.setObjectProtoAndParent((ScriptableObject) unwrapped, scope);
          }
          return unwrapped;
        }
      }
      return self;
    } catch (Exception ex) {
      throw Context.throwAsScriptRuntimeEx(ex);
    }
  }
コード例 #16
0
 protected void addIdFunctionProperty(Scriptable obj, Object tag, int id, String name, int arity) {
   Scriptable scope = ScriptableObject.getTopLevelScope(obj);
   IdFunctionObject f = newIdFunction(tag, id, name, arity, scope);
   f.addAsProperty(obj);
 }
コード例 #17
0
 public final void initPrototypeMethod(Object tag, int id, String name, int arity) {
   Scriptable scope = ScriptableObject.getTopLevelScope(this);
   IdFunctionObject f = newIdFunction(tag, id, name, arity, scope);
   prototypeValues.initValue(id, name, f, DONTENUM);
 }
コード例 #18
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
 public static Scriptable createAdapterWrapper(Scriptable obj, Object adapter) {
   Scriptable scope = ScriptableObject.getTopLevelScope(obj);
   NativeJavaObject res = new NativeJavaObject(scope, adapter, null, true);
   res.setPrototype(obj);
   return res;
 }
コード例 #19
0
 public Scriptable getPrototype() {
   if (prototype == null && javaObject instanceof String) {
     return ScriptableObject.getClassPrototype(parent, "String");
   }
   return prototype;
 }