/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed 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 sample.parent;
import java.io.File;
import java.util.function.Consumer;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.dsl.IntegrationFlow;
import org.springframework.integration.dsl.IntegrationFlows;
import org.springframework.integration.dsl.Pollers;
import org.springframework.integration.dsl.SourcePollingChannelAdapterSpec;
import org.springframework.integration.file.FileReadingMessageSource;
import org.springframework.integration.file.FileWritingMessageHandler;
@SpringBootApplication
@EnableConfigurationProperties(ServiceProperties.class)
public class SampleParentContextApplication {
@EnableAutoConfiguration
protected static class Parent {
@Bean
public FileReadingMessageSource fileReader() {
FileReadingMessageSource reader = new FileReadingMessageSource();
reader.setDirectory(new File("target/input"));
return reader;
}
@Bean
public DirectChannel inputChannel() {
return new DirectChannel();
}
@Bean
public DirectChannel outputChannel() {
return new DirectChannel();
}
@Bean
public FileWritingMessageHandler fileWriter() {
FileWritingMessageHandler writer = new FileWritingMessageHandler(
new File("target/output"));
writer.setExpectReply(false);
return writer;
}
@Bean
public IntegrationFlow integrationFlow(SampleEndpoint endpoint) {
return IntegrationFlows.from(fileReader(), new FixedRatePoller())
.channel(inputChannel()).handle(endpoint).channel(outputChannel())
.handle(fileWriter()).get();
}
private static class FixedRatePoller
implements Consumer<SourcePollingChannelAdapterSpec> {
@Override
public void accept(SourcePollingChannelAdapterSpec spec) {
spec.poller(Pollers.fixedRate(500));
}
}
}
public static void main(String[] args) throws Exception {
new SpringApplicationBuilder(Parent.class)
.child(SampleParentContextApplication.class).run(args);
}
}