Example usage for com.google.gwt.user.client.rpc SerializationStreamFactory createStreamWriter

Introduction

In this page you can find the example usage for com.google.gwt.user.client.rpc SerializationStreamFactory createStreamWriter.

Prototype

SerializationStreamWriter createStreamWriter();

Source Link

Document

Creates a SerializationStreamWriter .

Usage

From source file:fr.putnami.pwt.core.service.client.DefaultCommandController.java

License:Open Source License

private int sendRequest(List<Request> requests, AsyncCallback<List<CommandResponse>> callback) {
    if (requests == null || requests.isEmpty()) {
        return 0;
    }//w w  w  . j a  v  a2  s .c  om
    try {
        Collection<Serializer> serializers = Sets.newHashSet();
        List<CommandRequest> commands = Lists.newArrayList();

        for (Request request : requests) {
            serializers.add(request.param.getSerializer());
            commands.add(request.command);
            if (!request.param.isQuiet()) {
                this.fireEvent(new CommandRequestEvent(request.requestId, request.command));
            }
        }

        ServiceCallback serviceCallback = new ServiceCallback(requests, callback);
        CommandServiceCompositeSerializer compositeSerializer = new CommandServiceCompositeSerializer(
                serializers);

        SerializationStreamFactory streamFactory = new CommandSerializationStreamFactory(compositeSerializer,
                this.moduleBaseURL);
        SerializationStreamWriter streamWriter = streamFactory.createStreamWriter();

        streamWriter.writeString(DefaultCommandController.REMOTE_SERVICE_INTERFACE_NAME);
        streamWriter.writeString(DefaultCommandController.METHOD_NAME);
        streamWriter.writeInt(1);
        streamWriter.writeString(List.class.getName());
        streamWriter.writeObject(commands);

        String payload = streamWriter.toString();

        RpcStatsContext statsContext = new RpcStatsContext();

        RequestCallback responseHandler = new RequestCallbackAdapter<List<CommandResponse>>(streamFactory,
                DefaultCommandController.METHOD_NAME, statsContext, serviceCallback, null,
                ResponseReader.OBJECT);

        this.rpcRequestBuilder.create(this.remoteServiceURL);
        this.rpcRequestBuilder.setCallback(responseHandler);
        this.rpcRequestBuilder.setContentType(DefaultCommandController.RPC_CONTENT_TYPE);
        this.rpcRequestBuilder.setRequestData(payload);
        this.rpcRequestBuilder.setRequestId(statsContext.getRequestId());

        RequestBuilder rb = this.rpcRequestBuilder.finish();
        CsrfController.get().securize(rb);
        rb.send();

        return requests.size();
    } catch (SerializationException e) {
        throw new CommandException(e.getMessage());
    } catch (RequestException e) {
        throw new CommandException(e.getMessage());
    }
}

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