001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.guice.impl;
018    
019    import java.lang.reflect.Field;
020    import java.lang.reflect.Method;
021    
022    import com.google.inject.Inject;
023    import com.google.inject.TypeLiteral;
024    
025    import org.apache.camel.CamelContext;
026    import org.apache.camel.EndpointInject;
027    import org.apache.camel.impl.CamelPostProcessorHelper;
028    import org.apache.camel.util.ObjectHelper;
029    import org.guiceyfruit.support.AnnotationMemberProvider;
030    
031    /**
032     * Injects values into the {@link EndpointInject} injection point
033     *
034     * @version $Revision: 18868 $
035     */
036    public class EndpointInjector extends CamelPostProcessorHelper implements
037        AnnotationMemberProvider<EndpointInject> {
038    
039        @Inject
040        public EndpointInjector(CamelContext camelContext) {
041            super(camelContext);
042        }
043    
044        public Object provide(EndpointInject inject, TypeLiteral<?> typeLiteral, Field field) {
045            Class<?> type = field.getType();
046            String injectionPointName = field.getName();
047            String uri = inject.uri();
048            String endpointRef = inject.ref();
049    
050            return getInjectionValue(type, uri, endpointRef, injectionPointName, null, null);
051        }
052    
053        public Object provide(EndpointInject inject, TypeLiteral<?> typeLiteral, Method method, Class<?> aClass, int index) {
054            Class<?>[] parameterTypes = method.getParameterTypes();
055            Class<?> type = parameterTypes[index];
056            String injectionPointName = ObjectHelper.getPropertyName(method);
057            String endpointRef = inject.ref();
058            String uri = inject.uri();
059    
060            return getInjectionValue(type, uri, endpointRef, injectionPointName, null, null);
061        }
062    
063        public boolean isNullParameterAllowed(EndpointInject endpointInject, Method method, Class<?> aClass, int index) {
064            return false;
065        }
066    
067    }