org.apache.camel.component.cron.CronHelper Maven / Gradle / Ivy
/*
* 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 org.apache.camel.component.cron;
import org.apache.camel.CamelContext;
import org.apache.camel.ExtendedCamelContext;
import org.apache.camel.component.cron.api.CamelCronService;
import org.apache.camel.spi.FactoryFinder;
import org.apache.camel.support.CamelContextHelper;
import org.apache.camel.util.ObjectHelper;
public final class CronHelper {
private static final String RESOURCE_PATH = "META-INF/services/org/apache/camel/cron/";
private static final String FACTORY_KEY = "cron-service";
private CronHelper() {
}
/**
* Helper to lookup/create an instance of {@link CamelCronService}
*/
public static CamelCronService resolveCamelCronService(CamelContext context, String name) {
// Lookup the registry first
CamelCronService service = ObjectHelper.isEmpty(name)
? CamelContextHelper.findSingleByType(context, CamelCronService.class)
: CamelContextHelper.lookup(context, name, CamelCronService.class);
if (service != null) {
// If the service is bound to the registry we assume it is already
// configured so let's return it as it is.
return service;
}
// Fallback to factory finder
FactoryFinder finder = context.adapt(ExtendedCamelContext.class).getFactoryFinder(RESOURCE_PATH);
return finder.newInstance(FACTORY_KEY, CamelCronService.class).orElse(null);
}
}