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 */
017package org.apache.camel.spring.spi;
018
019import org.apache.camel.IsSingleton;
020import org.apache.camel.spi.Injector;
021import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
022import org.springframework.context.ConfigurableApplicationContext;
023
024/**
025 * A Spring implementation of {@link Injector} allowing Spring to be used to dependency inject newly created POJOs
026 *
027 * @version 
028 */
029public class SpringInjector implements Injector {
030    private final ConfigurableApplicationContext applicationContext;
031    private int autowireMode = AutowireCapableBeanFactory.AUTOWIRE_CONSTRUCTOR;
032    private boolean dependencyCheck;
033
034    public SpringInjector(ConfigurableApplicationContext applicationContext) {
035        this.applicationContext = applicationContext;
036    }
037
038    public <T> T newInstance(Class<T> type) {
039        Object value = applicationContext.getBeanFactory().createBean(type, autowireMode, dependencyCheck);
040        return type.cast(value);
041    }
042
043    public <T> T newInstance(Class<T> type, Object instance) {
044        if (instance instanceof IsSingleton) {
045            boolean singleton = ((IsSingleton) instance).isSingleton();
046            if (singleton) {
047                return type.cast(instance);
048            }
049        }
050        return newInstance(type);
051    }
052
053    @Override
054    public boolean supportsAutoWiring() {
055        return true;
056    }
057
058    public int getAutowireMode() {
059        return autowireMode;
060    }
061
062    public void setAutowireMode(int autowireMode) {
063        this.autowireMode = autowireMode;
064    }
065
066    public boolean isDependencyCheck() {
067        return dependencyCheck;
068    }
069
070    public void setDependencyCheck(boolean dependencyCheck) {
071        this.dependencyCheck = dependencyCheck;
072    }
073
074    public ConfigurableApplicationContext getApplicationContext() {
075        return applicationContext;
076    }
077}