Example usage for com.google.gwt.core.ext GeneratorContextExt commitResource

Introduction

In this page you can find the example usage for com.google.gwt.core.ext GeneratorContextExt commitResource.

Prototype

GeneratedResource commitResource(TreeLogger logger, OutputStream os) throws UnableToCompleteException;

Source Link

Document

Commits resource generation begun with #tryCreateResource(TreeLogger,String) .

Usage

From source file:org.atmosphere.gwt.rebind.SerializerGenerator.java

License:Apache License

@Override
public RebindResult generateIncrementally(TreeLogger logger, GeneratorContextExt context, String typeName)
        throws UnableToCompleteException {

    TypeOracle typeOracle = context.getTypeOracle();

    // Create the CometSerializer impl
    String packageName = "comet";
    String className = typeName.replace('.', '_') + "Impl";
    PrintWriter printWriter = context.tryCreate(logger, packageName, className);

    if (printWriter != null) {

        try {//from  w w w . j  av a 2s. co m
            JClassType type = typeOracle.getType(typeName);
            SerialTypes annotation = type.getAnnotation(SerialTypes.class);
            if (annotation == null) {
                logger.log(TreeLogger.ERROR, "No SerialTypes annotation on CometSerializer type: " + typeName);
                throw new UnableToCompleteException();
            }

            SerializableTypeOracleBuilder typesSentToBrowserBuilder = new SerializableTypeOracleBuilder(logger,
                    context.getPropertyOracle(), context);
            SerializableTypeOracleBuilder typesSentFromBrowserBuilder = new SerializableTypeOracleBuilder(
                    logger, context.getPropertyOracle(), context);

            for (Class<? extends Serializable> serializable : annotation.value()) {
                int rank = 0;
                if (serializable.isArray()) {
                    while (serializable.isArray()) {
                        serializable = (Class<? extends Serializable>) serializable.getComponentType();
                        rank++;
                    }
                }

                JType resolvedType = typeOracle.getType(serializable.getCanonicalName());
                while (rank > 0) {
                    resolvedType = typeOracle.getArrayType(resolvedType);
                    rank--;
                }

                typesSentToBrowserBuilder.addRootType(logger, resolvedType);
                typesSentFromBrowserBuilder.addRootType(logger, resolvedType);
            }

            // Create a resource file to receive all of the serialization information
            // computed by STOB and mark it as private so it does not end up in the
            // output.
            OutputStream pathInfo = context.tryCreateResource(logger, typeName + ".rpc.log");
            PrintWriter writer = new PrintWriter(new OutputStreamWriter(pathInfo));
            writer.write("====================================\n");
            writer.write("Types potentially sent from server:\n");
            writer.write("====================================\n\n");
            writer.flush();

            typesSentToBrowserBuilder.setLogOutputWriter(writer);
            SerializableTypeOracle typesSentToBrowser = typesSentToBrowserBuilder.build(logger);

            writer.write("===================================\n");
            writer.write("Types potentially sent from browser:\n");
            writer.write("===================================\n\n");
            writer.flush();
            typesSentFromBrowserBuilder.setLogOutputWriter(writer);
            SerializableTypeOracle typesSentFromBrowser = typesSentFromBrowserBuilder.build(logger);

            writer.close();

            if (pathInfo != null) {
                context.commitResource(logger, pathInfo).setPrivate(true);
            }

            // Create the serializer
            final String modifiedTypeName = typeName.replace('.', '_');
            TypeSerializerCreator tsc = new TypeSerializerCreator(logger, typesSentFromBrowser,
                    typesSentToBrowser, context, "comet." + modifiedTypeName, modifiedTypeName);
            String realize = tsc.realize(logger);

            // Create the CometSerializer impl
            ClassSourceFileComposerFactory composerFactory = new ClassSourceFileComposerFactory(packageName,
                    className);

            composerFactory.addImport(Serializer.class.getName());
            composerFactory.addImport(SerialMode.class.getName());

            composerFactory.setSuperclass(typeName);
            // TODO is the SERIALIZER required for DE RPC?
            SourceWriter sourceWriter = composerFactory.createSourceWriter(context, printWriter);
            sourceWriter.print("private Serializer SERIALIZER = new " + realize + "();");
            sourceWriter.print("protected Serializer getSerializer() {return SERIALIZER;}");
            sourceWriter
                    .print("public SerialMode getMode() {return SerialMode." + annotation.mode().name() + ";}");
            sourceWriter.print("public SerialMode getPushMode() {return SerialMode."
                    + annotation.pushmode().name() + ";}");
            sourceWriter.commit(logger);

            if (annotation.mode() == SerialMode.DE_RPC) {
                RpcDataArtifact data = new RpcDataArtifact(type.getQualifiedSourceName());
                for (JType t : typesSentToBrowser.getSerializableTypes()) {
                    if (!(t instanceof JClassType)) {
                        continue;
                    }
                    JField[] serializableFields = SerializationUtils
                            .getSerializableFields(context.getTypeOracle(), (JClassType) t);

                    List<String> names = Lists.create();
                    for (int i = 0, j = serializableFields.length; i < j; i++) {
                        names = Lists.add(names, serializableFields[i].getName());
                    }

                    data.setFields(SerializationUtils.getRpcTypeName(t), names);
                }

                context.commitArtifact(logger, data);
            }
        } catch (NotFoundException e) {
            logger.log(TreeLogger.ERROR, "", e);
            throw new UnableToCompleteException();
        }
    }

    return new RebindResult(RebindStatus.USE_PARTIAL_CACHED, packageName + '.' + className);
}

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