| /* |
| * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.corba.se.impl.presentation.rmi ; |
| |
| import java.io.Serializable ; |
| import java.io.Externalizable ; |
| |
| import javax.rmi.PortableRemoteObject ; |
| import javax.rmi.CORBA.Util ; |
| |
| import java.rmi.RemoteException ; |
| import java.rmi.UnexpectedException ; |
| |
| import org.omg.CORBA.UserException ; |
| |
| import org.omg.CORBA_2_3.portable.InputStream ; |
| import org.omg.CORBA_2_3.portable.OutputStream ; |
| import org.omg.CORBA.portable.ApplicationException ; |
| |
| import java.lang.reflect.Method ; |
| |
| import com.sun.corba.se.spi.logging.CORBALogDomains ; |
| import com.sun.corba.se.impl.logging.ORBUtilSystemException ; |
| |
| public class ExceptionHandlerImpl implements ExceptionHandler |
| { |
| private ExceptionRW[] rws ; |
| |
| private final ORBUtilSystemException wrapper ; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // ExceptionRW interface and implementations. |
| // Used to read and write exceptions. |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| public interface ExceptionRW |
| { |
| Class getExceptionClass() ; |
| |
| String getId() ; |
| |
| void write( OutputStream os, Exception ex ) ; |
| |
| Exception read( InputStream is ) ; |
| } |
| |
| public abstract class ExceptionRWBase implements ExceptionRW |
| { |
| private Class cls ; |
| private String id ; |
| |
| public ExceptionRWBase( Class cls ) |
| { |
| this.cls = cls ; |
| } |
| |
| public Class getExceptionClass() |
| { |
| return cls ; |
| } |
| |
| public String getId() |
| { |
| return id ; |
| } |
| |
| void setId( String id ) |
| { |
| this.id = id ; |
| } |
| } |
| |
| public class ExceptionRWIDLImpl extends ExceptionRWBase |
| { |
| private Method readMethod ; |
| private Method writeMethod ; |
| |
| public ExceptionRWIDLImpl( Class cls ) |
| { |
| super( cls ) ; |
| |
| String helperName = cls.getName() + "Helper" ; |
| ClassLoader loader = cls.getClassLoader() ; |
| Class helperClass ; |
| |
| try { |
| helperClass = Class.forName( helperName, true, loader ) ; |
| Method idMethod = helperClass.getDeclaredMethod( "id", (Class[])null ) ; |
| setId( (String)idMethod.invoke( null, (Object[])null ) ) ; |
| } catch (Exception ex) { |
| throw wrapper.badHelperIdMethod( ex, helperName ) ; |
| } |
| |
| try { |
| Class[] argTypes = new Class[] { |
| org.omg.CORBA.portable.OutputStream.class, cls } ; |
| writeMethod = helperClass.getDeclaredMethod( "write", |
| argTypes ) ; |
| } catch (Exception ex) { |
| throw wrapper.badHelperWriteMethod( ex, helperName ) ; |
| } |
| |
| try { |
| Class[] argTypes = new Class[] { |
| org.omg.CORBA.portable.InputStream.class } ; |
| readMethod = helperClass.getDeclaredMethod( "read", argTypes ) ; |
| } catch (Exception ex) { |
| throw wrapper.badHelperReadMethod( ex, helperName ) ; |
| } |
| } |
| |
| public void write( OutputStream os, Exception ex ) |
| { |
| try { |
| Object[] args = new Object[] { os, ex } ; |
| writeMethod.invoke( null, args ) ; |
| } catch (Exception exc) { |
| throw wrapper.badHelperWriteMethod( exc, |
| writeMethod.getDeclaringClass().getName() ) ; |
| } |
| } |
| |
| public Exception read( InputStream is ) |
| { |
| try { |
| Object[] args = new Object[] { is } ; |
| return (Exception)readMethod.invoke( null, args ) ; |
| } catch (Exception ex) { |
| throw wrapper.badHelperReadMethod( ex, |
| readMethod.getDeclaringClass().getName() ) ; |
| } |
| } |
| } |
| |
| public class ExceptionRWRMIImpl extends ExceptionRWBase |
| { |
| public ExceptionRWRMIImpl( Class cls ) |
| { |
| super( cls ) ; |
| setId( IDLNameTranslatorImpl.getExceptionId( cls ) ) ; |
| } |
| |
| public void write( OutputStream os, Exception ex ) |
| { |
| os.write_string( getId() ) ; |
| os.write_value( ex, getExceptionClass() ) ; |
| } |
| |
| public Exception read( InputStream is ) |
| { |
| is.read_string() ; // read and ignore! |
| return (Exception)is.read_value( getExceptionClass() ) ; |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| public ExceptionHandlerImpl( Class[] exceptions ) |
| { |
| wrapper = ORBUtilSystemException.get( |
| CORBALogDomains.RPC_PRESENTATION ) ; |
| |
| int count = 0 ; |
| for (int ctr=0; ctr<exceptions.length; ctr++) { |
| Class cls = exceptions[ctr] ; |
| if (!RemoteException.class.isAssignableFrom(cls)) |
| count++ ; |
| } |
| |
| rws = new ExceptionRW[count] ; |
| |
| int index = 0 ; |
| for (int ctr=0; ctr<exceptions.length; ctr++) { |
| Class cls = exceptions[ctr] ; |
| if (!RemoteException.class.isAssignableFrom(cls)) { |
| ExceptionRW erw = null ; |
| if (UserException.class.isAssignableFrom(cls)) |
| erw = new ExceptionRWIDLImpl( cls ) ; |
| else |
| erw = new ExceptionRWRMIImpl( cls ) ; |
| |
| /* The following check is not performed |
| * in order to maintain compatibility with |
| * rmic. See bug 4989312. |
| |
| // Check for duplicate repository ID |
| String repositoryId = erw.getId() ; |
| int duplicateIndex = findDeclaredException( repositoryId ) ; |
| if (duplicateIndex > 0) { |
| ExceptionRW duprw = rws[duplicateIndex] ; |
| String firstClassName = |
| erw.getExceptionClass().getName() ; |
| String secondClassName = |
| duprw.getExceptionClass().getName() ; |
| throw wrapper.duplicateExceptionRepositoryId( |
| firstClassName, secondClassName, repositoryId ) ; |
| } |
| |
| */ |
| |
| rws[index++] = erw ; |
| } |
| } |
| } |
| |
| private int findDeclaredException( Class cls ) |
| { |
| for (int ctr = 0; ctr < rws.length; ctr++) { |
| Class next = rws[ctr].getExceptionClass() ; |
| if (next.isAssignableFrom(cls)) |
| return ctr ; |
| } |
| |
| return -1 ; |
| } |
| |
| private int findDeclaredException( String repositoryId ) |
| { |
| for (int ctr=0; ctr<rws.length; ctr++) { |
| // This may occur when rws has not been fully |
| // populated, in which case the search should just fail. |
| if (rws[ctr]==null) |
| return -1 ; |
| |
| String rid = rws[ctr].getId() ; |
| if (repositoryId.equals( rid )) |
| return ctr ; |
| } |
| |
| return -1 ; |
| } |
| |
| public boolean isDeclaredException( Class cls ) |
| { |
| return findDeclaredException( cls ) >= 0 ; |
| } |
| |
| public void writeException( OutputStream os, Exception ex ) |
| { |
| int index = findDeclaredException( ex.getClass() ) ; |
| if (index < 0) |
| throw wrapper.writeUndeclaredException( ex, |
| ex.getClass().getName() ) ; |
| |
| rws[index].write( os, ex ) ; |
| } |
| |
| public Exception readException( ApplicationException ae ) |
| { |
| // Note that the exception ID is present in both ae |
| // and in the input stream from ae. The exception |
| // reader must actually read the exception ID from |
| // the stream. |
| InputStream is = (InputStream)ae.getInputStream() ; |
| String excName = ae.getId() ; |
| int index = findDeclaredException( excName ) ; |
| if (index < 0) { |
| excName = is.read_string() ; |
| Exception res = new UnexpectedException( excName ) ; |
| res.initCause( ae ) ; |
| return res ; |
| } |
| |
| return rws[index].read( is ) ; |
| } |
| |
| // This is here just for the dynamicrmiiiop test |
| public ExceptionRW getRMIExceptionRW( Class cls ) |
| { |
| return new ExceptionRWRMIImpl( cls ) ; |
| } |
| } |