PortletEventBridge.java

/*
 * Copyright 2013 eXo Platform SAS
 *
 * 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 juzu.impl.bridge.spi.portlet;

import juzu.Event;
import juzu.impl.bridge.Bridge;
import juzu.impl.common.Introspector;
import juzu.impl.request.ContextualParameter;
import juzu.impl.request.ControllerHandler;
import juzu.request.ClientContext;
import juzu.request.Phase;

import javax.portlet.EventRequest;
import javax.portlet.EventResponse;
import javax.portlet.PortletConfig;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */
public class PortletEventBridge extends PortletInteractionBridge<EventRequest, EventResponse> {

  public PortletEventBridge(
      Bridge bridge,
      EventRequest req,
      EventResponse resp,
      PortletConfig config,
      ControllerHandler<?> target,
      Map<String, String[]> parameters) {
    super(bridge, Phase.EVENT, req, resp, config, target, parameters);
  }

  @Override
  public Map<ContextualParameter, Object> getContextualArguments(Set<ContextualParameter> parameters) {
    Map<ContextualParameter, Object> args = super.getContextualArguments(parameters);
    for (ContextualParameter parameter : parameters) {
      ContextualParameter contextualParameter = (ContextualParameter)parameter;
      if (Event.class.isAssignableFrom(contextualParameter.getType())) {
        Class payloadType = Introspector.resolveToClass(contextualParameter.getGenericType(), Event.class, 0);
        if (payloadType.isInstance(req.getEvent().getValue())) {
          if (args.isEmpty()) {
            args = new HashMap<ContextualParameter, Object>();
          }
          args.put(parameter, new Event(req.getEvent().getName(), req.getEvent().getValue()));
        }
      }
    }
    return args;
  }

  public ClientContext getClientContext() {
    return null;
  }
}