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The Core Camel Java DSL based router
/**
* 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.impl.cloud;
import java.util.Optional;
import java.util.Set;
import org.apache.camel.CamelContext;
import org.apache.camel.cloud.ServiceRegistry;
import org.apache.camel.util.ObjectHelper;
public final class ServiceRegistryHelper {
private ServiceRegistryHelper() {
}
public static Optional lookupService(CamelContext context) {
return lookupService(context, ServiceRegistrySelectors.DEFAULT_SELECTOR);
}
public static Optional lookupService(CamelContext context, ServiceRegistry.Selector selector) {
ObjectHelper.notNull(context, "Camel Context");
ObjectHelper.notNull(selector, "ServiceRegistry selector");
Set services = context.hasServices(ServiceRegistry.class);
if (ObjectHelper.isNotEmpty(services)) {
return selector.select(services);
}
return Optional.empty();
}
public static ServiceRegistry mandatoryLookupService(CamelContext context) {
return lookupService(context).orElseThrow(() -> new IllegalStateException("ServiceRegistry service not found"));
}
public static ServiceRegistry mandatoryLookupService(CamelContext context, ServiceRegistry.Selector selector) {
return lookupService(context, selector).orElseThrow(() -> new IllegalStateException("ServiceRegistry service not found"));
}
}