/*
* Copyright 2014 Jeanfrancois Arcand
*
* 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.atmosphere.guice;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Singleton;
import com.google.inject.TypeLiteral;
import com.google.inject.name.Names;
import org.atmosphere.cpr.AtmosphereFramework;
import org.atmosphere.cpr.AtmosphereServlet;
import org.atmosphere.handler.ReflectorServletProcessor;
import java.util.Map;
/**
* Google Guice Integration. Only difference with the {@link AtmosphereServlet} is this class is annotated with @Singleton
* annotation.
*
* @author Jeanfrancois Arcand
*/
@Singleton
public class AtmosphereGuiceServlet extends AtmosphereServlet {
public static final String PROPERTIES = GuiceObjectFactory.class.getName() + ".properties";
public AtmosphereGuiceServlet() {
this(false, true);
}
public AtmosphereGuiceServlet(boolean isFilter, boolean autoDetectHandlers) {
framework = new AtmosphereFramework(isFilter, autoDetectHandlers) {
@Override
protected void configureDetectedFramework(ReflectorServletProcessor rsp, boolean isJersey) {
Injector injector = (Injector) framework().getAtmosphereConfig().getServletContext().getAttribute(Injector.class.getName());
GuiceContainer guiceServlet = injector.getInstance(GuiceContainer.class);
rsp.setServlet(guiceServlet);
if (isJersey) {
try {
Map<String, String> props = injector.getInstance(
Key.get(new TypeLiteral<Map<String, String>>() {
}, Names.named(PROPERTIES)));
if (props != null) {
for (String p : props.keySet()) {
framework().addInitParameter(p, props.get(p));
}
}
} catch (Exception ex) {
// Do not fail
logger.debug("failed to add Jersey init parameters to Atmosphere servlet", ex);
}
}
}
};
}
}