components-starter/camel-hdfs2-starter/src/main/java/org/apache/camel/component/hdfs2/springboot/HdfsComponentAutoConfiguration.java

/**
 * 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.component.hdfs2.springboot;

import java.util.HashMap;
import java.util.Map;
import org.apache.camel.CamelContext;
import org.apache.camel.component.hdfs2.HdfsComponent;
import org.apache.camel.util.IntrospectionSupport;
import org.springframework.boot.autoconfigure.condition.ConditionMessage;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.boot.bind.RelaxedPropertyResolver;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Lazy;
import org.springframework.core.type.AnnotatedTypeMetadata;

/**
 * Generated by camel-package-maven-plugin - do not edit this file!
 */
@Configuration
@EnableConfigurationProperties(HdfsComponentConfiguration.class)
@Conditional(HdfsComponentAutoConfiguration.Condition.class)
public class HdfsComponentAutoConfiguration {

    @Lazy
    @Bean(name = "hdfs2-component")
    @ConditionalOnClass(CamelContext.class)
    @ConditionalOnMissingBean(HdfsComponent.class)
    public HdfsComponent configureHdfsComponent(CamelContext camelContext,
            HdfsComponentConfiguration configuration) throws Exception {
        HdfsComponent component = new HdfsComponent();
        component.setCamelContext(camelContext);
        Map<String, Object> parameters = new HashMap<>();
        IntrospectionSupport.getProperties(configuration, parameters, null,
                false);
        for (Map.Entry<String, Object> entry : parameters.entrySet()) {
            Object value = entry.getValue();
            Class<?> paramClass = value.getClass();
            if (paramClass.getName().endsWith("NestedConfiguration")) {
                Class nestedClass = null;
                try {
                    nestedClass = (Class) paramClass.getDeclaredField(
                            "CAMEL_NESTED_CLASS").get(null);
                    HashMap<String, Object> nestedParameters = new HashMap<>();
                    IntrospectionSupport.getProperties(value, nestedParameters,
                            null, false);
                    Object nestedProperty = nestedClass.newInstance();
                    IntrospectionSupport.setProperties(camelContext,
                            camelContext.getTypeConverter(), nestedProperty,
                            nestedParameters);
                    entry.setValue(nestedProperty);
                } catch (NoSuchFieldException e) {
                }
            }
        }
        IntrospectionSupport.setProperties(camelContext,
                camelContext.getTypeConverter(), component, parameters);
        return component;
    }

    public static class Condition extends SpringBootCondition {
        @Override
        public ConditionOutcome getMatchOutcome(
                ConditionContext conditionContext,
                AnnotatedTypeMetadata annotatedTypeMetadata) {
            boolean groupEnabled = isEnabled(conditionContext,
                    "camel.component.", true);
            ConditionMessage.Builder message = ConditionMessage
                    .forCondition("camel.component.hdfs2");
            if (isEnabled(conditionContext, "camel.component.hdfs2.",
                    groupEnabled)) {
                return ConditionOutcome.match(message.because("enabled"));
            }
            return ConditionOutcome.noMatch(message.because("not enabled"));
        }

        private boolean isEnabled(
                org.springframework.context.annotation.ConditionContext context,
                java.lang.String prefix, boolean defaultValue) {
            RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(
                    context.getEnvironment(), prefix);
            return resolver.getProperty("enabled", Boolean.class, defaultValue);
        }
    }
}