BAEL-80 - file copy java config

spring-integration/src/main/java/com/baeldung/samples/FileCopyConfig.java

@@ -0,0 +1,72 @@
+package com.baeldung.samples;
+
+import java.io.File;
+import java.util.Scanner;
+
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.integration.annotation.InboundChannelAdapter;
+import org.springframework.integration.annotation.Poller;
+import org.springframework.integration.annotation.ServiceActivator;
+import org.springframework.integration.channel.DirectChannel;
+import org.springframework.integration.config.EnableIntegration;
+import org.springframework.integration.core.MessageSource;
+import org.springframework.integration.file.FileReadingMessageSource;
+import org.springframework.integration.file.FileWritingMessageHandler;
+import org.springframework.integration.file.filters.SimplePatternFileListFilter;
+import org.springframework.integration.file.support.FileExistsMode;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.MessageHandler;
+
+@Configuration
+@EnableIntegration
+public class FileCopyConfig {
+
+    public final String INPUT_DIR = "source";
+    public final String OUTPUT_DIR = "target";
+    public final String FILE_PATTERN = ".jpg";
+
+    @Bean
+    public MessageChannel fileChannel() {
+        return new DirectChannel();
+    }
+
+    @Bean
+    @InboundChannelAdapter(value = "fileChannel", poller = @Poller(fixedDelay = "10000"))
+    public MessageSource<File> fileReadingMessageSource() {
+        FileReadingMessageSource sourceReader = new FileReadingMessageSource();
+        sourceReader.setDirectory(new File(INPUT_DIR));
+        sourceReader.setFilter(new SimplePatternFileListFilter(FILE_PATTERN));
+        return sourceReader;
+    }
+
+    @Bean
+    @ServiceActivator(inputChannel = "fileChannel")
+    public MessageHandler fileWritingMessageHandler() {
+        FileWritingMessageHandler handler = new FileWritingMessageHandler(new File(OUTPUT_DIR));
+        handler.setFileExistsMode(FileExistsMode.REPLACE);
+        return handler;
+    }
+
+    public static void main(final String... args) {
+        final AbstractApplicationContext context = new AnnotationConfigApplicationContext(FileCopyConfig.class.getCanonicalName());
+        context.registerShutdownHook();
+        final Scanner scanner = new Scanner(System.in);
+        System.out.print("Please enter a string and press <enter>: ");
+        while (true) {
+            final String input = scanner.nextLine();
+            if ("q".equals(input.trim())) {
+                context.close();
+                scanner.close();
+                break;
+            }
+        }
+        System.exit(0);
+    }
+
+}
+    
+
+

spring-integration/src/main/resources/log4j.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
+
+    <!-- Appenders -->
+    <appender name="console" class="org.apache.log4j.ConsoleAppender">
+        <param name="Target" value="System.out"/>
+        <layout class="org.apache.log4j.PatternLayout">
+            <param name="ConversionPattern" value="%d{HH:mm:ss.SSS} %-5p [%t][%c] %m%n"/>
+        </layout>
+    </appender>
+
+    <!-- Loggers -->
+    <logger name="org.springframework.integration">
+        <level value="warn"/>
+    </logger>
+
+    <logger name="com.baeldung.samples">
+        <level value="info"/>
+    </logger>
+
+    <!-- Root Logger -->
+    <root>
+        <priority value="warn"/>
+        <appender-ref ref="console"/>
+    </root>
+
+</log4j:configuration>

spring-integration/src/test/java/com/baeldung/samples/FileCopyTest.java

@@ -17,11 +17,10 @@ package com.baeldung.samples;
 
 import org.apache.log4j.Logger;
 import org.junit.Test;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.support.AbstractApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
-import java.util.Scanner;
-
 
 /**
  * Starts the Spring Context and will initialize the Spring Integration routes.
@@ -35,15 +34,10 @@ public final class FileCopyTest {
 	private static final Logger LOGGER = Logger.getLogger(FileCopyTest.class);
 
 	@Test
-	public void test() throws InterruptedException {
-
-
-		final AbstractApplicationContext context =
-				new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/spring-integration-file-copy-context.xml");
-
+	public void whenFileCopyConfiguration_thanFileCopiedSuccessfully() throws InterruptedException {
+		final AbstractApplicationContext context = new AnnotationConfigApplicationContext(FileCopyConfig.class.getCanonicalName());
+		context.registerShutdownHook();
 		Thread.sleep(5000);
-
-
 	}
 
 	@Test