Examples with ServiceChooser org.apache.camel.cloud.ServiceChooser used on opensource projects

Example 1 with ServiceChooser

use of org.apache.camel.cloud.ServiceChooser in project camel by apache.

the class ServiceCallDefinition method createProcessor.

// *****************************
// Processor Factory
// *****************************
@Override
public Processor createProcessor(RouteContext routeContext) throws Exception {
    final CamelContext camelContext = routeContext.getCamelContext();
    final ServiceDiscovery serviceDiscovery = retrieveServiceDiscovery(camelContext);
    final ServiceFilter serviceFilter = retrieveServiceFilter(camelContext);
    final ServiceChooser serviceChooser = retrieveServiceChooser(camelContext);
    final LoadBalancer loadBalancer = retrieveLoadBalancer(camelContext);
    final Expression expression = retrieveExpression(camelContext);
    if (loadBalancer instanceof CamelContextAware) {
        ((CamelContextAware) loadBalancer).setCamelContext(camelContext);
    }
    if (loadBalancer instanceof ServiceDiscoveryAware) {
        ((ServiceDiscoveryAware) loadBalancer).setServiceDiscovery(serviceDiscovery);
    }
    if (loadBalancer instanceof ServiceFilterAware) {
        ((ServiceFilterAware) loadBalancer).setServiceFilter(serviceFilter);
    }
    if (loadBalancer instanceof ServiceChooserAware) {
        ((ServiceChooserAware) loadBalancer).setServiceChooser(serviceChooser);
    }
    // The component is used to configure the default scheme to use (eg camel component name).
    // The component configured on EIP takes precedence vs configured on configuration.
    String component = this.component;
    if (component == null) {
        ServiceCallConfigurationDefinition conf = retrieveConfig(camelContext);
        if (conf != null) {
            component = conf.getComponent();
        }
    }
    if (component == null) {
        ServiceCallConfigurationDefinition conf = retrieveDefaultConfig(camelContext);
        if (conf != null) {
            component = conf.getComponent();
        }
    }
    return new DefaultServiceCallProcessor(camelContext, name, component, uri, pattern, loadBalancer, expression);
}

Example 2 with ServiceChooser

use of org.apache.camel.cloud.ServiceChooser in project camel by apache.

the class ServiceCallDefinition method retrieveServiceChooser.

// ******************************************
// ServiceChooser
// ******************************************
private ServiceChooser retrieveServiceChooser(CamelContext camelContext, Function<CamelContext, ServiceCallConfigurationDefinition> function) throws Exception {
    ServiceChooser answer = null;
    ServiceCallConfigurationDefinition config = function.apply(camelContext);
    if (config != null) {
        answer = retrieve(ServiceChooser.class, camelContext, config::getServiceChooser, config::getServiceChooserRef);
        if (answer == null) {
            String ref = config.getServiceChooserRef();
            if (ObjectHelper.equal("roundrobin", ref, true)) {
                answer = new RoundRobinServiceChooser();
            } else if (ObjectHelper.equal("round-robin", ref, true)) {
                answer = new RoundRobinServiceChooser();
            } else if (ObjectHelper.equal("random", ref, true)) {
                answer = new RandomServiceChooser();
            }
        }
    }
    return answer;
}

Example 3 with ServiceChooser

use of org.apache.camel.cloud.ServiceChooser in project camel by apache.

the class ServiceCallServiceChooserConfiguration method newInstance.

// *************************************************************************
// Factory
// *************************************************************************
@Override
public ServiceChooser newInstance(CamelContext camelContext) throws Exception {
    ObjectHelper.notNull(factoryKey, "ServiceChooser factoryKey");
    ServiceChooser answer;
    // First try to find the factory from the registry.
    ServiceChooserFactory factory = CamelContextHelper.lookup(camelContext, factoryKey, ServiceChooserFactory.class);
    if (factory != null) {
        // If a factory is found in the registry do not re-configure it as
        // it should be pre-configured.
        answer = factory.newInstance(camelContext);
    } else {
        Class<?> type;
        try {
            // Then use Service factory.
            type = camelContext.getFactoryFinder(RESOURCE_PATH).findClass(factoryKey);
        } catch (Exception e) {
            throw new NoFactoryAvailableException(RESOURCE_PATH + factoryKey, e);
        }
        if (type != null) {
            if (ServiceChooserFactory.class.isAssignableFrom(type)) {
                factory = (ServiceChooserFactory) camelContext.getInjector().newInstance(type);
            } else {
                throw new NoFactoryAvailableException("Resolving ServiceChooser: " + factoryKey + " detected type conflict: Not a ServiceChooserFactory implementation. Found: " + type.getName());
            }
        }
        try {
            Map<String, Object> parameters = new HashMap<>();
            IntrospectionSupport.getProperties(this, parameters, null, false);
            parameters.put("properties", getPropertiesAsMap(camelContext));
            IntrospectionSupport.setProperties(factory, parameters);
            answer = factory.newInstance(camelContext);
        } catch (Exception e) {
            throw new IllegalArgumentException(e);
        }
    }
    return answer;
}