| /** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.yoko.rmi.impl; |
| |
| import org.omg.CORBA.MARSHAL; |
| import org.omg.CORBA.TypeCode; |
| import org.omg.CORBA.portable.InputStream; |
| import org.omg.CORBA.portable.ObjectImpl; |
| import org.omg.CORBA.portable.OutputStream; |
| |
| import javax.rmi.CORBA.Util; |
| import java.io.Serializable; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.Map; |
| |
| class IDLEntityDescriptor extends ValueDescriptor { |
| private final boolean isCorba; |
| private final Class helperType; |
| |
| IDLEntityDescriptor(Class type, TypeRepository repository) { |
| super(type, repository); |
| |
| isCorba = org.omg.CORBA.Object.class.isAssignableFrom(type); |
| try { |
| final String helperName = type.getName() + "Helper"; |
| helperType = Util.loadClass(helperName, null, type.getClassLoader()); |
| } catch (ClassNotFoundException ex) { |
| throw new RuntimeException("cannot load IDL Helper class for " |
| + type, ex); |
| } |
| } |
| |
| @Override |
| protected final String genIDLName() { |
| return "org_omg_boxedIDL_" + super.genIDLName(); |
| } |
| |
| private volatile Method readMethod = null; |
| private Method getReadMethod() { |
| if (null == readMethod) readMethod = genHelperMethod("write"); |
| return readMethod; |
| } |
| |
| private volatile Method writeMethod = null; |
| private Method getWriteMethod() { |
| if (null == writeMethod) writeMethod = genHelperMethod("write"); |
| return writeMethod; |
| } |
| |
| private volatile Method typeMethod = null; |
| private Method getTypeMethod() { |
| if (null == typeMethod) typeMethod = genHelperMethod("type"); |
| return typeMethod; |
| } |
| |
| private Method genHelperMethod(final String name) { |
| return AccessController.doPrivileged(new PrivilegedAction<Method>() { |
| @Override |
| public Method run() { |
| for (Method m: helperType.getDeclaredMethods()) { |
| if (m.getName().equals(name)) return m; |
| } |
| throw new RuntimeException("Unable to find " + name + " method for " + helperType.getName()); |
| } |
| }); |
| } |
| |
| /** Read an instance of this value from a CDR stream */ |
| @Override |
| public Object read(InputStream in) { |
| org.omg.CORBA_2_3.portable.InputStream _in = (org.omg.CORBA_2_3.portable.InputStream) in; |
| |
| // there are two ways we need to deal with IDLEntity classes. Ones that also implement |
| // the CORBA Object interface are actual corba objects, and must be handled that way. |
| // Other IDLEntity classes are just transmitted by value. |
| if (isCorba) { |
| return _in.read_Object(type); |
| } else { |
| // we directly call read_value() on the stream here, with the explicitly specified |
| // repository ID. The input stream will handle validating the value tag for us, and eventually |
| // will call our readValue() method to deserialize the object. |
| return _in.read_value(getRepositoryID()); |
| } |
| } |
| |
| @Override |
| public Serializable readValue(final InputStream in, final Map offsetMap, final Integer offset) { |
| try { |
| Serializable value = (Serializable) getReadMethod().invoke(null, new Object[]{in}); |
| offsetMap.put(offset, value); |
| return value; |
| } catch (InvocationTargetException ex) { |
| throw (MARSHAL)new MARSHAL(""+ex.getCause()).initCause(ex.getCause()); |
| } catch (IllegalAccessException ex) { |
| throw (MARSHAL)new MARSHAL(ex.getMessage()).initCause(ex); |
| } |
| } |
| |
| /** Write an instance of this value to a CDR stream */ |
| @Override |
| public void write(OutputStream out, Object val) { |
| org.omg.CORBA_2_3.portable.OutputStream _out = (org.omg.CORBA_2_3.portable.OutputStream) out; |
| |
| |
| // there are two ways we need to deal with IDLEntity classes. Ones that also implement |
| // the CORBA Object interface are actual corba objects, and must be handled that way. |
| // Other IDLEntity classes are just transmitted by value. |
| if (val instanceof ObjectImpl) { |
| _out.write_Object((org.omg.CORBA.Object)val); |
| } else { |
| // we directly call write_value() on the stream here, with the explicitly specified |
| // repository ID. the output stream will handle writing the value tag for us, and eventually |
| // will call our writeValue() method to serialize the object. |
| _out.write_value((Serializable)val, getRepositoryID()); |
| } |
| } |
| |
| @Override |
| public void writeValue(OutputStream out, Serializable val) { |
| try { |
| getWriteMethod().invoke(null, new Object[] { out, val }); |
| } catch (InvocationTargetException ex) { |
| throw (MARSHAL)new MARSHAL(""+ ex.getCause()).initCause(ex.getCause()); |
| } catch (IllegalAccessException ex) { |
| throw (MARSHAL)new MARSHAL(ex.getMessage()).initCause(ex); |
| } |
| } |
| |
| @Override |
| protected TypeCode genTypeCode() { |
| try { |
| return (TypeCode) getTypeMethod().invoke(null, new Object[0]); |
| } catch (InvocationTargetException ex) { |
| throw (MARSHAL)new MARSHAL(""+ex.getCause()).initCause(ex.getCause()); |
| } catch (IllegalAccessException ex) { |
| throw (MARSHAL)new MARSHAL(ex.getMessage()).initCause(ex); |
| } |
| } |
| } |