Clean up Apache Camel example
This commit is contained in:
David Morley
parent
9d6f56c40a
commit
54a1235d17
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@ -23,6 +23,6 @@ To build this application execute following maven command in ApacheCamelFileProc
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<code>mvn clean install</code>
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To run this application you can either run our main class org.apache.camel.main.App from your IDE or you can execute following maven command:
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To run this application you can either run our main class App from your IDE or you can execute following maven command:
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<code>mvn exec:java -Dexec.mainClass="org.apache.camel.main.App"</code>
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<code>mvn exec:java -Dexec.mainClass="App"</code>
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@ -1,12 +1,12 @@
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package org.apache.camel.main;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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public class App {
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public static void main(final String[] args) throws Exception {
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ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("camel-context.xml");
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// Keep main thread alive for some time to let application finish processing the input files.
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Thread.sleep(5000);
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applicationContext.close();
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}
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package com.baeldung.camel.main;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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public class App {
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public static void main(final String[] args) throws Exception {
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ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("camel-context.xml");
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// Keep main thread alive for some time to let application finish processing the input files.
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Thread.sleep(5000);
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applicationContext.close();
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}
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}
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@ -0,0 +1,14 @@
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package com.baeldung.camel.processor;
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import org.apache.camel.Exchange;
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import org.apache.camel.Processor;
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public class FileProcessor implements Processor {
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public void process(Exchange exchange) throws Exception {
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String originalFileContent = exchange.getIn().getBody(String.class);
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String upperCaseFileContent = originalFileContent.toUpperCase();
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exchange.getIn().setBody(upperCaseFileContent);
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}
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}
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@ -1,14 +0,0 @@
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package org.apache.camel.processor;
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import org.apache.camel.Exchange;
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import org.apache.camel.Processor;
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public class FileProcessor implements Processor {
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public void process(Exchange exchange) throws Exception {
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String originalFileContent = exchange.getIn().getBody(String.class);
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String upperCaseFileContent = originalFileContent.toUpperCase();
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exchange.getIn().setBody(upperCaseFileContent);
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}
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}
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@ -1,40 +1,39 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
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http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd">
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<camelContext xmlns="http://camel.apache.org/schema/spring">
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<camelContext xmlns="http://camel.apache.org/schema/spring">
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<route customId="true" id="route1">
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<route customId="true" id="route1">
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<!-- Read files from input directory -->
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<from uri="file://src/test/data/input" />
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<!-- Read files from input directory -->
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<from uri="file://src/test/data/input"/>
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<!-- Transform content to UpperCase -->
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<process ref="myFileProcessor" />
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<!-- Transform content to UpperCase -->
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<process ref="myFileProcessor"/>
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<!-- Write converted file content -->
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<to uri="file://src/test/data/outputUpperCase" />
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<!-- Write converted file content -->
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<to uri="file://src/test/data/outputUpperCase"/>
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<!-- Transform content to LowerCase -->
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<transform>
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<simple>${body.toLowerCase()}</simple>
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</transform>
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<!-- Transform content to LowerCase -->
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<transform>
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<simple>${body.toLowerCase()}</simple>
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</transform>
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<!-- Write converted file content -->
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<to uri="file://src/test/data/outputLowerCase" />
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<!-- Write converted file content -->
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<to uri="file://src/test/data/outputLowerCase"/>
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<!-- Display process completion message on console -->
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<transform>
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<simple> .......... File content conversion completed ..........
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</simple>
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</transform>
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<to uri="stream:out" />
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<!-- Display process completion message on console -->
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<transform>
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<simple>.......... File content conversion completed ..........</simple>
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</transform>
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<to uri="stream:out"/>
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</route>
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</route>
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</camelContext>
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</camelContext>
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<bean id="myFileProcessor" class="org.apache.camel.processor.FileProcessor" />
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<bean id="myFileProcessor" class="com.baeldung.camel.processor.FileProcessor"/>
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</beans>
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@ -1 +1 @@
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THIS IS UPPERCASE CONTENT. this is lowercase content.
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This is data that will be processed by a Camel route!
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@ -1,5 +1,12 @@
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package org.apache.camel.main;
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import com.baeldung.camel.main.App;
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import junit.framework.TestCase;
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import org.apache.camel.util.FileUtil;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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@ -8,110 +15,103 @@ import java.nio.channels.FileChannel;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import junit.framework.TestCase;
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import org.apache.camel.util.FileUtil;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public class AppTest extends TestCase {
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private static final String FILE_NAME = "file.txt";
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private static final String SAMPLE_INPUT_DIR = "src/test/data/sampleInputFile/";
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private static final String TEST_INPUT_DIR = "src/test/data/input/";
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private static final String UPPERCARE_OUTPUT_DIR = "src/test/data/outputUpperCase/";
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private static final String LOWERCASE_OUTPUT_DIR = "src/test/data/outputLowerCase/";
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private static final String FILE_NAME = "file.txt";
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private static final String SAMPLE_INPUT_DIR = "src/test/data/sampleInputFile/";
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private static final String TEST_INPUT_DIR = "src/test/data/input/";
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private static final String UPPERCASE_OUTPUT_DIR = "src/test/data/outputUpperCase/";
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private static final String LOWERCASE_OUTPUT_DIR = "src/test/data/outputLowerCase/";
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@Before
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public void setUp() throws Exception {
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// Prepare input file for test
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copySampleFileToInputDirectory();
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}
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@Before
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public void setUp() throws Exception {
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// Prepare input file for test
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copySampleFileToInputDirectory();
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}
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@After
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public void tearDown() throws Exception {
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System.out.println("Deleting the test input and output files...");
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deleteFile(TEST_INPUT_DIR);
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deleteFile(LOWERCASE_OUTPUT_DIR);
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deleteFile(UPPERCARE_OUTPUT_DIR);
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}
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@After
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public void tearDown() throws Exception {
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System.out.println("Deleting the test input and output files...");
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deleteFile(TEST_INPUT_DIR);
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deleteFile(LOWERCASE_OUTPUT_DIR);
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deleteFile(UPPERCASE_OUTPUT_DIR);
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}
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@Test
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public final void testMain() throws Exception {
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App.main(null);
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@Test
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public final void testMain() throws Exception {
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App.main(null);
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String inputFileContent = readFileContent(SAMPLE_INPUT_DIR+FILE_NAME);
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String outputUpperCase = readFileContent(UPPERCARE_OUTPUT_DIR+FILE_NAME);
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String outputLowerCase = readFileContent(LOWERCASE_OUTPUT_DIR+FILE_NAME);
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System.out.println("Input File content = ["+inputFileContent+"]");
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System.out.println("UpperCaseOutput file content = ["+outputUpperCase+"]");
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System.out.println("LowerCaseOtput file content = ["+outputLowerCase+"]");
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assertEquals(inputFileContent.toUpperCase(), outputUpperCase);
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assertEquals(inputFileContent.toLowerCase(), outputLowerCase);
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}
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String inputFileContent = readFileContent(SAMPLE_INPUT_DIR + FILE_NAME);
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String outputUpperCase = readFileContent(UPPERCASE_OUTPUT_DIR + FILE_NAME);
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String outputLowerCase = readFileContent(LOWERCASE_OUTPUT_DIR + FILE_NAME);
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private String readFileContent(String path) throws IOException {
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byte[] encoded = Files.readAllBytes(Paths.get(path));
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return new String(encoded);
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}
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System.out.println("Input File content = [" + inputFileContent + "]");
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System.out.println("UpperCaseOutput file content = [" + outputUpperCase + "]");
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System.out.println("LowerCaseOtput file content = [" + outputLowerCase + "]");
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private void deleteFile(String path) {
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try {
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FileUtil.removeDir(new File(path));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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assertEquals(inputFileContent.toUpperCase(), outputUpperCase);
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assertEquals(inputFileContent.toLowerCase(), outputLowerCase);
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}
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/**
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* Copy sample input file to input directory.
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*/
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private void copySampleFileToInputDirectory() {
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File sourceFile = new File(SAMPLE_INPUT_DIR + FILE_NAME);
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File destFile = new File(TEST_INPUT_DIR + FILE_NAME);
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if (!sourceFile.exists()) {
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System.out.println("Sample input file not found at location = [" + SAMPLE_INPUT_DIR + FILE_NAME + "]. Please provide this file.");
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}
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private String readFileContent(String path) throws IOException {
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byte[] encoded = Files.readAllBytes(Paths.get(path));
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return new String(encoded);
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}
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if (!destFile.exists()) {
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try {
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System.out.println("Creating input file = [" + TEST_INPUT_DIR + FILE_NAME + "]");
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File destDir = new File(TEST_INPUT_DIR);
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if(!destDir.exists()) {
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destDir.mkdir();
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}
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destFile.createNewFile();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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FileChannel source = null;
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FileChannel destination = null;
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private void deleteFile(String path) {
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try {
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FileUtil.removeDir(new File(path));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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try {
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source = new FileInputStream(sourceFile).getChannel();
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destination = new FileOutputStream(destFile).getChannel();
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if (destination != null && source != null) {
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destination.transferFrom(source, 0, source.size());
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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source.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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try {
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destination.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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/**
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* Copy sample input file to input directory.
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*/
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private void copySampleFileToInputDirectory() {
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File sourceFile = new File(SAMPLE_INPUT_DIR + FILE_NAME);
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File destFile = new File(TEST_INPUT_DIR + FILE_NAME);
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if (!sourceFile.exists()) {
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System.out.println("Sample input file not found at location = [" + SAMPLE_INPUT_DIR + FILE_NAME + "]. Please provide this file.");
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}
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if (!destFile.exists()) {
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try {
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System.out.println("Creating input file = [" + TEST_INPUT_DIR + FILE_NAME + "]");
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File destDir = new File(TEST_INPUT_DIR);
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if (!destDir.exists()) {
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destDir.mkdir();
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}
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destFile.createNewFile();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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FileChannel source = null;
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FileChannel destination = null;
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try {
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source = new FileInputStream(sourceFile).getChannel();
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destination = new FileOutputStream(destFile).getChannel();
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if (destination != null && source != null) {
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destination.transferFrom(source, 0, source.size());
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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source.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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try {
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destination.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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}
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