/components/camel-cdi/src/main/java/org/apache/camel/cdi/CdiCamelFactory.java
Java | 227 lines | 180 code | 21 blank | 26 comment | 7 complexity | e7bf6dfed4462fcb495f391c0f64e705 MD5 | raw file
- /**
- * 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.cdi;
- import java.lang.annotation.Annotation;
- import java.lang.reflect.ParameterizedType;
- import java.lang.reflect.Type;
- import java.util.Collection;
- import java.util.HashSet;
- import java.util.Optional;
- import javax.enterprise.event.Event;
- import javax.enterprise.inject.Any;
- import javax.enterprise.inject.Default;
- import javax.enterprise.inject.InjectionException;
- import javax.enterprise.inject.Instance;
- import javax.enterprise.inject.Produces;
- import javax.enterprise.inject.Typed;
- import javax.enterprise.inject.UnsatisfiedResolutionException;
- import javax.enterprise.inject.spi.InjectionPoint;
- import org.apache.camel.CamelContext;
- import org.apache.camel.ConsumerTemplate;
- import org.apache.camel.Endpoint;
- import org.apache.camel.FluentProducerTemplate;
- import org.apache.camel.ProducerTemplate;
- import org.apache.camel.TypeConverter;
- import org.apache.camel.component.mock.MockEndpoint;
- import static org.apache.camel.cdi.CdiEventEndpoint.eventEndpointUri;
- import static org.apache.camel.cdi.CdiSpiHelper.isAnnotationType;
- import static org.apache.camel.cdi.DefaultLiteral.DEFAULT;
- final class CdiCamelFactory {
- @Produces
- private static TypeConverter typeConverter(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- return selectContext(ip, instance, extension).getTypeConverter();
- }
- @Produces
- // Qualifiers are dynamically added in CdiCamelExtension
- private static ConsumerTemplate consumerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- return selectContext(ip, instance, extension).createConsumerTemplate();
- }
- @Produces
- @Default @Uri("")
- // Qualifiers are dynamically added in CdiCamelExtension
- private static ProducerTemplate producerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- return getQualifierByType(ip, Uri.class)
- .map(uri -> producerTemplateFromUri(ip, instance, extension, uri))
- .orElseGet(() -> defaultProducerTemplate(ip, instance, extension));
- }
- private static ProducerTemplate producerTemplateFromUri(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension, Uri uri) {
- try {
- CamelContext context = uri.context().isEmpty()
- ? selectContext(ip, instance, extension)
- : selectContext(uri.context(), instance);
- ProducerTemplate producerTemplate = context.createProducerTemplate();
- Endpoint endpoint = context.getEndpoint(uri.value(), Endpoint.class);
- producerTemplate.setDefaultEndpoint(endpoint);
- return producerTemplate;
- } catch (Exception cause) {
- throw new InjectionException("Error injecting producer template annotated with " + uri + " into " + ip, cause);
- }
- }
- private static ProducerTemplate defaultProducerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- try {
- CamelContext context = selectContext(ip, instance, extension);
- return context.createProducerTemplate();
- } catch (Exception cause) {
- throw new InjectionException("Error injecting producer template into " + ip, cause);
- }
- }
- @Produces
- @Default @Uri("")
- // Qualifiers are dynamically added in CdiCamelExtension
- private static FluentProducerTemplate fluentProducerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- return getQualifierByType(ip, Uri.class)
- .map(uri -> fluentProducerTemplateFromUri(ip, instance, extension, uri))
- .orElseGet(() -> defaultFluentProducerTemplate(ip, instance, extension));
- }
- private static FluentProducerTemplate fluentProducerTemplateFromUri(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension, Uri uri) {
- try {
- CamelContext context = uri.context().isEmpty()
- ? selectContext(ip, instance, extension)
- : selectContext(uri.context(), instance);
- FluentProducerTemplate producerTemplate = context.createFluentProducerTemplate();
- Endpoint endpoint = context.getEndpoint(uri.value(), Endpoint.class);
- producerTemplate.setDefaultEndpoint(endpoint);
- return producerTemplate;
- } catch (Exception cause) {
- throw new InjectionException("Error injecting fluent producer template annotated with " + uri + " into " + ip, cause);
- }
- }
- private static FluentProducerTemplate defaultFluentProducerTemplate(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- try {
- CamelContext context = selectContext(ip, instance, extension);
- return context.createFluentProducerTemplate();
- } catch (Exception cause) {
- throw new InjectionException("Error injecting fluent producer template into " + ip, cause);
- }
- }
- @Produces
- @Typed(MockEndpoint.class)
- // Qualifiers are dynamically added in CdiCamelExtension
- private static MockEndpoint mockEndpointFromMember(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- String uri = "mock:" + ip.getMember().getName();
- try {
- return selectContext(ip, instance, extension).getEndpoint(uri, MockEndpoint.class);
- } catch (Exception cause) {
- throw new InjectionException("Error injecting mock endpoint into " + ip, cause);
- }
- }
- @Uri("")
- @Produces
- @Typed(MockEndpoint.class)
- // Qualifiers are dynamically added in CdiCamelExtension
- private static MockEndpoint mockEndpointFromUri(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- Uri uri = getQualifierByType(ip, Uri.class).get();
- try {
- CamelContext context = uri.context().isEmpty()
- ? selectContext(ip, instance, extension)
- : selectContext(uri.context(), instance);
- return context.getEndpoint(uri.value(), MockEndpoint.class);
- } catch (Exception cause) {
- throw new InjectionException("Error injecting mock endpoint annotated with " + uri
- + " into " + ip, cause);
- }
- }
- // Maintained for backward compatibility reason though this is redundant with @Uri
- // see https://issues.apache.org/jira/browse/CAMEL-5553?focusedCommentId=13445936&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13445936
- @Mock
- @Produces
- @Typed(MockEndpoint.class)
- // Qualifiers are dynamically added in CdiCamelExtension
- private static MockEndpoint createMockEndpoint(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- Mock mock = getQualifierByType(ip, Mock.class).get();
- try {
- CamelContext context = mock.context().isEmpty()
- ? selectContext(ip, instance, extension)
- : selectContext(mock.context(), instance);
- return context.getEndpoint(mock.value(), MockEndpoint.class);
- } catch (Exception cause) {
- throw new InjectionException("Error injecting mock endpoint annotated with " + mock + " into " + ip, cause);
- }
- }
- @Uri("")
- @Produces
- // Qualifiers are dynamically added in CdiCamelExtension
- private static Endpoint endpoint(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension) {
- Uri uri = getQualifierByType(ip, Uri.class).get();
- try {
- CamelContext context = uri.context().isEmpty()
- ? selectContext(ip, instance, extension)
- : selectContext(uri.context(), instance);
- return context.getEndpoint(uri.value(), Endpoint.class);
- } catch (Exception cause) {
- throw new InjectionException("Error injecting endpoint annotated with " + uri + " into " + ip, cause);
- }
- }
- @Produces
- @SuppressWarnings("unchecked")
- // Qualifiers are dynamically added in CdiCamelExtension
- private static <T> CdiEventEndpoint<T> cdiEventEndpoint(InjectionPoint ip, @Any Instance<CamelContext> instance, CdiCamelExtension extension, @Any Event<Object> event) throws Exception {
- CamelContext context = selectContext(ip, instance, extension);
- Type type = Object.class;
- if (ip.getType() instanceof ParameterizedType) {
- type = ((ParameterizedType) ip.getType()).getActualTypeArguments()[0];
- }
- String uri = eventEndpointUri(type, ip.getQualifiers());
- if (context.hasEndpoint(uri) == null) {
- context.addEndpoint(uri, extension.getEventEndpoint(uri));
- }
- return context.getEndpoint(uri, CdiEventEndpoint.class);
- }
- private static <T extends CamelContext> T selectContext(String name, Instance<T> instance) {
- for (T context : instance) {
- if (name.equals(context.getName())) {
- return context;
- }
- }
- throw new UnsatisfiedResolutionException("No Camel context with name [" + name + "] is deployed!");
- }
- private static <T extends CamelContext> T selectContext(InjectionPoint ip, Instance<T> instance, CdiCamelExtension extension) {
- Collection<Annotation> qualifiers = new HashSet<>(ip.getQualifiers());
- qualifiers.retainAll(extension.getContextQualifiers());
- if (qualifiers.isEmpty() && !instance.select(DEFAULT).isUnsatisfied()) {
- return instance.select(DEFAULT).get();
- }
- return instance.select(qualifiers.toArray(new Annotation[0])).get();
- }
- private static <T extends Annotation> Optional<T> getQualifierByType(InjectionPoint ip, Class<T> type) {
- return ip.getQualifiers().stream()
- .filter(isAnnotationType(type))
- .findAny()
- .map(type::cast);
- }
- }