/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 org.jboss.arquillian.protocol.servlet;

import java.lang.reflect.Method;
import java.net.URI;
import java.util.Collection;

import org.jboss.arquillian.container.spi.client.protocol.metadata.HTTPContext;
import org.jboss.arquillian.container.test.api.TargetsContainer;

/**
 * ServletURIHandler
 *
 * @author <a href="mailto:aslak@redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class ServletURIHandler
{

   private ServletProtocolConfiguration config;

   private Collection<HTTPContext> contexts;

   /**
    * 
    */
   public ServletURIHandler(ServletProtocolConfiguration config, Collection<HTTPContext> contexts)
   {
      if (config == null)
      {
         throw new IllegalArgumentException("ServletProtocolConfiguration must be specified");
      }
      if (contexts == null || contexts.size() == 0)
      {
         throw new IllegalArgumentException("HTTPContext must be specified");
      }
      this.config = config;
      this.contexts = contexts;
   }

   public URI locateTestServlet(Method method)
   {
      HTTPContext context = locateHTTPContext(method);
      return ServletUtil.determineBaseURI(
               config, 
               context, 
               ServletMethodExecutor.ARQUILLIAN_SERVLET_NAME);
   }

   protected HTTPContext locateHTTPContext(Method method)
   {
      TargetsContainer targetContainer = method.getAnnotation(TargetsContainer.class);
      if (targetContainer != null)
      {
         String targetName = targetContainer.value();

         for (HTTPContext context : contexts)
         {
            if (targetName.equals(context.getName()))
            {
               return context;
            }
         }
         throw new IllegalArgumentException("Could not determin HTTPContext from ProtocolMetadata for target: "
               + targetName + ". Verify that the given target name in @" + TargetsContainer.class.getSimpleName()
               + " match a name returned by the deployment container");
      }
      return contexts.toArray(new HTTPContext[]{})[0];
   }
}
