/*
* Copyright 2009 Google Inc.
*
* Licensed 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 com.google.gwt.rpc.client.impl;
import com.google.gwt.rpc.client.ast.CommandSink;
import com.google.gwt.rpc.server.CommandServerSerializationStreamReader;
import com.google.gwt.rpc.server.CommandServerSerializationStreamWriter;
import com.google.gwt.rpc.server.HostedModeClientOracle;
import com.google.gwt.rpc.server.SimplePayloadDecoder;
import com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException;
import com.google.gwt.user.client.rpc.SerializationException;
import com.google.gwt.user.client.rpc.SerializationStreamReader;
import com.google.gwt.user.client.rpc.SerializationStreamWriter;
import java.util.Collections;
/**
* Isolates client code from swapping out the command factory in hosted versus
* web mode. This type has a super-source peer which is used in web mode.
*/
public class ClientWriterFactory {
public static SerializationStreamReader createReader(String payload)
throws IncompatibleRemoteServiceException, RemoteException {
SimplePayloadDecoder decoder;
try {
decoder = new SimplePayloadDecoder(new HostedModeClientOracle(), payload);
} catch (ClassNotFoundException e) {
throw new IncompatibleRemoteServiceException(
"Client does not have a type sent by the server", e);
}
CommandServerSerializationStreamReader reader = new CommandServerSerializationStreamReader();
if (decoder.getThrownValue() != null) {
reader.prepareToRead(Collections.singletonList(decoder.getThrownValue()));
try {
throw new RemoteException((Throwable) reader.readObject());
} catch (ClassCastException e) {
throw new RemoteException(
"The remote end threw something other than a Throwable", e);
} catch (SerializationException e) {
throw new RemoteException(
"The remote end threw an exception which could not be deserialized",
e);
}
} else {
reader.prepareToRead(decoder.getValues());
}
return reader;
}
public static SerializationStreamWriter createWriter(
TypeOverrides typeOverrides, CommandSink commandSink) {
return new CommandServerSerializationStreamWriter(commandSink);
}
}