be.objectify.deadbolt.java.ExecutionContextProvider Maven / Gradle / Ivy
/*
* Copyright 2010-2016 Steve Chaloner
*
* 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 be.objectify.deadbolt.java;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import play.inject.Injector;
import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.HashMap;
import java.util.function.Supplier;
/**
* @author Steve Ch aloner ([email protected])
*/
@Singleton
public class ExecutionContextProvider implements Supplier
{
private static final Logger LOGGER = LoggerFactory.getLogger(ExecutionContextProvider.class);
private final DeadboltExecutionContextProvider ecProvider;
@Inject
public ExecutionContextProvider(final Config config,
final Injector injector,
final DefaultDeadboltExecutionContextProvider defaultEcProvider)
{
final HashMap defaults = new HashMap<>();
defaults.put(ConfigKeys.CUSTOM_EC_DEFAULT._1,
ConfigKeys.CUSTOM_EC_DEFAULT._2);
final Config configWithFallback = config.withFallback(ConfigFactory.parseMap(defaults));
boolean customEcEnabled = configWithFallback.getBoolean(ConfigKeys.CUSTOM_EC_DEFAULT._1);
DeadboltExecutionContextProvider ecp = defaultEcProvider;
if (customEcEnabled)
{
try
{
ecp = injector.instanceOf(DeadboltExecutionContextProvider.class);
LOGGER.debug("Custom execution context provider found");
}
catch (Exception e)
{
LOGGER.debug("No custom execution context found.");
}
this.ecProvider = ecp;
}
else
{
ecProvider = defaultEcProvider;
}
}
@Override
public DeadboltExecutionContextProvider get()
{
return ecProvider;
}
}