com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator.java Source code

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Here is the source code for com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator.java

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/*
 * Copyright 2007 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.user.rebind.rpc;

import com.google.gwt.core.ext.GeneratorContextExt;
import com.google.gwt.core.ext.GeneratorExt;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.dev.javac.rebind.RebindResult;

/**
 * Generator for producing the asynchronous version of a
 * {@link com.google.gwt.user.client.rpc.RemoteService RemoteService} interface.
 */
public class ServiceInterfaceProxyGenerator extends GeneratorExt {

    @Override
    public RebindResult generateIncrementally(TreeLogger logger, GeneratorContextExt ctx, String requestedClass)
            throws UnableToCompleteException {

        TypeOracle typeOracle = ctx.getTypeOracle();
        assert (typeOracle != null);

        JClassType remoteService = typeOracle.findType(requestedClass);
        if (remoteService == null) {
            logger.log(TreeLogger.ERROR, "Unable to find metadata for type '" + requestedClass + "'", null);
            throw new UnableToCompleteException();
        }

        if (remoteService.isInterface() == null) {
            logger.log(TreeLogger.ERROR, remoteService.getQualifiedSourceName() + " is not an interface", null);
            throw new UnableToCompleteException();
        }

        ProxyCreator proxyCreator = createProxyCreator(remoteService);

        TreeLogger proxyLogger = logger.branch(TreeLogger.DEBUG,
                "Generating client proxy for remote service interface '" + remoteService.getQualifiedSourceName()
                        + "'",
                null);

        return proxyCreator.create(proxyLogger, ctx);
    }

    protected ProxyCreator createProxyCreator(JClassType remoteService) {
        return new ProxyCreator(remoteService);
    }
}