com.rabidgremlin.onepagewebstarter.guice.CxfGuiceServlet.java Source code

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Here is the source code for com.rabidgremlin.onepagewebstarter.guice.CxfGuiceServlet.java

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/* 
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You 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.rabidgremlin.onepagewebstarter.guice;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.inject.Singleton;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;

import org.apache.commons.lang3.StringUtils;
import org.apache.cxf.jaxrs.lifecycle.ResourceProvider;
import org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider;
import org.apache.cxf.jaxrs.servlet.CXFNonSpringJaxrsServlet;

import com.google.inject.Injector;

@Singleton
public class CxfGuiceServlet extends CXFNonSpringJaxrsServlet {

    @Override
    protected List<Object> getProviders(ServletConfig servletConfig, String splitChar) throws ServletException {
        List<Object> providers = new ArrayList<Object>();

        String providersList = servletConfig.getInitParameter("jaxrs.providers");
        if (providersList == null) {
            return providers;
        }

        Injector injector = (Injector) servletConfig.getServletContext().getAttribute(Injector.class.getName());

        String[] classNames = StringUtils.split(providersList, splitChar);
        for (String cName : classNames) {
            Class<?> cls = loadClass(StringUtils.strip(cName));
            providers.add(injector.getInstance(cls));
        }

        return providers;
    }

    @Override
    protected Map<Class<?>, ResourceProvider> getResourceProviders(ServletConfig servletConfig,
            Map<Class<?>, Map<String, List<String>>> resourceClasses) throws ServletException {
        Injector injector = (Injector) servletConfig.getServletContext().getAttribute(Injector.class.getName());

        Map<Class<?>, ResourceProvider> providers = new HashMap<Class<?>, ResourceProvider>();
        for (Map.Entry<Class<?>, Map<String, List<String>>> entry : resourceClasses.entrySet()) {
            Class<?> cls = entry.getKey();
            providers.put(cls, new SingletonResourceProvider(injector.getInstance(cls)));
        }

        return providers;
    }

}