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Spring Batch Application

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This commit is contained in:
Kunwar
2020-07-11 15:27:12 +05:30
parent 9332e586e8
commit de69bf0bc0
18 changed files with 81 additions and 271 deletions
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2
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/SpringBootBatchBasicApplication.java
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@@ -3,12 +3,14 @@ package com.javadevjournal.springbootbatch;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing; import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.boot.SpringApplication; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;
/** /**
* @Author - Kunwar Vikas * @Author - Kunwar Vikas
*/ */
@SpringBootApplication @SpringBootApplication
@EnableBatchProcessing @EnableBatchProcessing
@EnableScheduling
public class SpringBootBatchBasicApplication { public class SpringBootBatchBasicApplication {
public static void main(String[] args) { public static void main(String[] args) {

43
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/config/SpringBatchConfig.java
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@@ -1,7 +1,7 @@
package com.javadevjournal.springbootbatch.config; package com.javadevjournal.springbootbatch.config;
import com.javadevjournal.springbootbatch.listener.SPJobExecutionListener; import com.javadevjournal.springbootbatch.listener.SpringBatchJobExecutionListener;
import com.javadevjournal.springbootbatch.listener.SPStepListener; import com.javadevjournal.springbootbatch.listener.SpringBatchStepListener;
import com.javadevjournal.springbootbatch.model.Employee; import com.javadevjournal.springbootbatch.model.Employee;
import com.javadevjournal.springbootbatch.step.EmployeeItemProcessor; import com.javadevjournal.springbootbatch.step.EmployeeItemProcessor;
import org.springframework.batch.core.Job; import org.springframework.batch.core.Job;
@@ -20,11 +20,9 @@ import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Configuration;
import com.javadevjournal.springbootbatch.listener.SpringBatchJobCompletionListener; import com.javadevjournal.springbootbatch.listener.SpringBatchJobCompletionListener;
import com.javadevjournal.springbootbatch.step.SBProcessor;
import com.javadevjournal.springbootbatch.step.SBReader;
import com.javadevjournal.springbootbatch.step.SBWriter;
import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.FileSystemResource; import org.springframework.core.io.FileSystemResource;
import org.springframework.scheduling.annotation.Scheduled;
/** /**
* @Author - Kunwar Vikas * @Author - Kunwar Vikas
@@ -40,28 +38,37 @@ public class SpringBatchConfig {
@Bean @Bean
public Job processJob() { public Job processJob() {
return jobBuilderFactory.get("javadevjournaljob") return jobBuilderFactory.get("stockpricesinfojob")
.incrementer(new RunIdIncrementer()) .incrementer(new RunIdIncrementer())
.listener(new SPJobExecutionListener()) .listener(new SpringBatchJobExecutionListener())
.flow(orderStep1()).end().build(); .flow(StockPricesInfoStep())
.end()
.build();
} }
@Bean @Bean
public Step orderStep1() { public Step StockPricesInfoStep() {
return stepBuilderFactory.get("step1") return stepBuilderFactory.get("step1")
.listener(new SPStepListener()) .listener(new SpringBatchStepListener())
.<Employee, String>chunk(10).reader(reader()) .<Employee, String>chunk(10)
.processor(processor()).writer(writer()).build(); .reader(reader())
.processor(processor())
.writer(writer())
.faultTolerant()
.retryLimit(3)
.retry(Exception.class)
.build();
} }
@Bean @Bean
public FlatFileItemReader<Employee> reader() { public FlatFileItemReader<Employee> reader() {
return new FlatFileItemReaderBuilder<Employee>() return new FlatFileItemReaderBuilder<Employee>()
.name("employeeItemReader") .name("stockInfoItemReader")
.resource(new ClassPathResource("csv/employees.csv")) .resource(new ClassPathResource("csv/stockinfo.csv"))
.delimited().names(new String[] {"firstName", "lastName","department"}) .delimited()
.targetType(Employee.class).build(); .names(new String[] {"stockId", "stockName","stockPrice","yearlyHigh","yearlyLow","address","sector","market"})
.targetType(Employee.class)
.build();
} }
@Bean @Bean
@@ -72,7 +79,7 @@ public class SpringBatchConfig {
@Bean @Bean
public FlatFileItemWriter<String> writer() { public FlatFileItemWriter<String> writer() {
return new FlatFileItemWriterBuilder<String>() return new FlatFileItemWriterBuilder<String>()
.name("greetingItemWriter") .name("stockInfoItemWriter")
.resource(new FileSystemResource( .resource(new FileSystemResource(
"target/output.txt")) "target/output.txt"))
.lineAggregator(new PassThroughLineAggregator<>()).build(); .lineAggregator(new PassThroughLineAggregator<>()).build();

34
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/controller/SpringBatchJobController.java
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@@ -3,12 +3,19 @@ package com.javadevjournal.springbootbatch.controller;
import org.springframework.batch.core.Job; import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobParameters; import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder; import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.JobParametersInvalidException;
import org.springframework.batch.core.launch.JobLauncher; import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.core.repository.JobExecutionAlreadyRunningException;
import org.springframework.batch.core.repository.JobInstanceAlreadyCompleteException;
import org.springframework.batch.core.repository.JobRestartException;
import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController; import org.springframework.web.bind.annotation.RestController;
import java.util.Date;
/** /**
* @Author - Kunwar Vikas * @Author - Kunwar Vikas
*/ */
@@ -19,13 +26,34 @@ public class SpringBatchJobController {
JobLauncher jobLauncher; JobLauncher jobLauncher;
@Autowired @Autowired
Job javadevjournaljob; Job stockpricesinfojob;
/**
* Invoke the batch job on-demand using rest APIs.
* @return
* @throws Exception
*/
@GetMapping("/invokejob") @GetMapping("/invokejob")
public String invokeBatchJob() throws Exception { public String invokeBatchJob() throws Exception {
JobParameters jobParameters = new JobParametersBuilder().addLong("time", System.currentTimeMillis()) JobParameters jobParameters = new JobParametersBuilder().addLong("time", System.currentTimeMillis())
.toJobParameters(); .toJobParameters();
jobLauncher.run(javadevjournaljob, jobParameters); jobLauncher.run(stockpricesinfojob, jobParameters);
return "Batch job has been invoked"; return "Batch job has been invoked";
} }
/**
* Schuled batch job every minute to load the stock prices and send notification
* @return
* @throws JobParametersInvalidException
* @throws JobExecutionAlreadyRunningException
* @throws JobRestartException
* @throws JobInstanceAlreadyCompleteException
*/
@Scheduled(fixedRate = 60000)
public String schedule() throws JobParametersInvalidException, JobExecutionAlreadyRunningException, JobRestartException, JobInstanceAlreadyCompleteException {
JobParameters jobParameters = new JobParametersBuilder().addLong("time", System.currentTimeMillis())
.toJobParameters();
jobLauncher.run(stockpricesinfojob, jobParameters);
return "Batch job has been invoked";
}
} }

30
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPChunkListener.java
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@@ -1,30 +0,0 @@
package com.javadevjournal.springbootbatch.listener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.ChunkListener;
import org.springframework.batch.core.StepListener;
import org.springframework.batch.core.scope.context.ChunkContext;
/**
* @Author - Kunwar Vikas
*/
public class SPChunkListener implements ChunkListener {
Logger logger = LoggerFactory.getLogger(SPChunkListener.class);
@Override
public void beforeChunk(ChunkContext chunkContext) {
logger.info("beforeChunk");
}
@Override
public void afterChunk(ChunkContext chunkContext) {
logger.info("afterChunk");
}
@Override
public void afterChunkError(ChunkContext chunkContext) {
logger.info("afterChunkError");
}
}

29
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPItemProcessorListener.java
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@@ -1,29 +0,0 @@
package com.javadevjournal.springbootbatch.listener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.ItemProcessListener;
/**
* @Author - Kunwar Vikas
*/
public class SPItemProcessorListener implements ItemProcessListener<String, Number> {
Logger logger = LoggerFactory.getLogger(SPItemProcessorListener.class);
@Override
public void beforeProcess(String item) {
logger.info("beforeProcess");
}
@Override
public void afterProcess(String item, Number result) {
logger.info("afterProcess");
}
@Override
public void onProcessError(String item, Exception e) {
logger.info(" onProcessError");
}
}

28
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPItemReadListener.java
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@@ -1,28 +0,0 @@
package com.javadevjournal.springbootbatch.listener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.ItemReadListener;
/**
* @Author - Kunwar Vikas
*/
public class SPItemReadListener implements ItemReadListener<String> {
Logger logger = LoggerFactory.getLogger(SPItemReadListener.class);
@Override
public void beforeRead() {
logger.info("Before reading an item");
}
@Override
public void afterRead(String item) {
logger.info("After reading an item: "+ item.toString());
}
@Override
public void onReadError(Exception ex) {
logger.error("Error occurred while reading an item!");
}
}

28
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPItemWriteListener.java
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@@ -1,28 +0,0 @@
package com.javadevjournal.springbootbatch.listener;
import com.javadevjournal.springbootbatch.model.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.ItemWriteListener;
import org.springframework.jdbc.core.JdbcTemplate;
import javax.sql.DataSource;
import java.util.List;
/**
* @Author - Kunwar Vikas
*/
public class SPItemWriteListener implements ItemWriteListener<Number> {
Logger logger = LoggerFactory.getLogger(SPItemWriteListener.class);
public void beforeWrite(List items) {
logger.info("before write");
}
public void onWriteError(Exception exception, List items) {
logger.info("Error occurred when writing items!");
}
public void afterWrite(List items) {
logger.info("after write");
}
}

28
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPSkipListener.java
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@@ -1,28 +0,0 @@
package com.javadevjournal.springbootbatch.listener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.core.SkipListener;
/**
* @Author - Kunwar Vikas
*/
public class SPSkipListener implements SkipListener<String, Number> {
Logger logger = LoggerFactory.getLogger(SPSkipListener.class);
@Override
public void onSkipInRead(Throwable t) {
logger.info("onSkipInRead");
}
@Override
public void onSkipInWrite(Number item, Throwable t) {
logger.info("onSkipInWrite");
}
@Override
public void onSkipInProcess(String item, Throwable t) {
logger.info("onWriteError");
}
}

4
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPJobExecutionListener.java → Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SpringBatchJobExecutionListener.java
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@@ -9,9 +9,9 @@ import org.springframework.batch.core.JobExecutionListener;
/** /**
* @Author - Kunwar Vikas * @Author - Kunwar Vikas
*/ */
public class SPJobExecutionListener implements JobExecutionListener { public class SpringBatchJobExecutionListener implements JobExecutionListener {
Logger logger = LoggerFactory.getLogger(SPJobExecutionListener.class); Logger logger = LoggerFactory.getLogger(SpringBatchJobExecutionListener.class);
public void beforeJob(JobExecution jobExecution) { public void beforeJob(JobExecution jobExecution) {
logger.info("BEFORE BATCH JOB STARTS"); logger.info("BEFORE BATCH JOB STARTS");

5
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SPStepListener.java → Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/listener/SpringBatchStepListener.java
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@@ -1,6 +1,5 @@
package com.javadevjournal.springbootbatch.listener; package com.javadevjournal.springbootbatch.listener;
import com.javadevjournal.springbootbatch.step.SBWriter;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import org.springframework.batch.core.ExitStatus; import org.springframework.batch.core.ExitStatus;
@@ -10,9 +9,9 @@ import org.springframework.batch.core.StepExecutionListener;
/** /**
* @Author - Kunwar Vikas * @Author - Kunwar Vikas
*/ */
public class SPStepListener implements StepExecutionListener { public class SpringBatchStepListener implements StepExecutionListener {
Logger logger = LoggerFactory.getLogger(SPStepListener.class); Logger logger = LoggerFactory.getLogger(SpringBatchStepListener.class);
@Override @Override
public void beforeStep(StepExecution stepExecution) { public void beforeStep(StepExecution stepExecution) {

19
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/mapper/UserRowMapper.java
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@@ -1,19 +0,0 @@
package com.javadevjournal.springbootbatch.mapper;
import com.javadevjournal.springbootbatch.model.User;
import org.springframework.jdbc.core.RowMapper;
import java.sql.ResultSet;
import java.sql.SQLException;
public class UserRowMapper implements RowMapper {
public User mapRow(ResultSet rs, int rowNum) throws SQLException {
User user = new User();
user.setFirstName(rs.getString("firstName"));
user.setMiddleName(rs.getString("middleName"));
user.setLastName(rs.getString("lastName"));
user.setCity(rs.getString("city"));
user.setId(rs.getInt("id"));
return user;
}
}

16
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/model/StockInfo.java Normal file
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@@ -0,0 +1,16 @@
package com.javadevjournal.springbootbatch.model;
import lombok.Data;
import java.util.List;
@Data
public class StockInfo {
private String stockId;
private String stockName;
private double stockPrice;
private double yearlyHigh;
private double yearlyLow;
private String address;
private String sector;
private String market;
}

15
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/model/User.java
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@@ -1,15 +0,0 @@
package com.javadevjournal.springbootbatch.model;
import lombok.Data;
/**
* Author Kunwar Vikas
*/
@Data
public class User {
private int id;
private String firstName;
private String middleName;
private String lastName;
private String city;
}

15
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/step/SBProcessor.java
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@@ -1,15 +0,0 @@
package com.javadevjournal.springbootbatch.step;
import org.springframework.batch.item.ItemProcessor;
/**
* @Author - Kunwar Vikas
*/
public class SBProcessor implements ItemProcessor<String, String> {
@Override
public String process(String data) throws Exception {
return data.toUpperCase();
}
}

31
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/step/SBReader.java
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@@ -1,31 +0,0 @@
package com.javadevjournal.springbootbatch.step;
import org.springframework.batch.item.ItemReader;
import org.springframework.batch.item.NonTransientResourceException;
import org.springframework.batch.item.ParseException;
import org.springframework.batch.item.UnexpectedInputException;
/**
* @Author - Kunwar Vikas
*/
public class SBReader implements ItemReader<String> {
private String[] messages = { "javadevjournal.com",
"Welcome to Spring Batch Example",
"We use H2 Database for this example" };
private int count = 0;
@Override
public String read() throws Exception, UnexpectedInputException,
ParseException, NonTransientResourceException {
if (count < messages.length) {
return messages[count++];
} else {
count = 0;
}
return null;
}
}

21
Spring-Boot-Batch/springbootbatch/src/main/java/com/javadevjournal/springbootbatch/step/SBWriter.java
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@@ -1,21 +0,0 @@
package com.javadevjournal.springbootbatch.step;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.batch.item.ItemWriter;
/**
* @Author - Kunwar Vikas
*/
public class SBWriter implements ItemWriter<String> {
Logger logger = LoggerFactory.getLogger(SBWriter.class);
@Override
public void write(List<? extends String> messages) throws Exception {
for (String msg : messages) {
logger.info("Writing the data \n" + msg);
}
}
}

4
Spring-Boot-Batch/springbootbatch/src/main/resources/application.properties
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@@ -10,4 +10,6 @@ log4j.rootCategory=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %t %c{2}:%L - %m%n log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %t %c{2}:%L - %m%n
log4j.category.org.springframework.beans.factory=DEBUG log4j.category.org.springframework.beans.factory=DEBUG
spring.batch.job.enabled=false

0
Spring-Boot-Batch/springbootbatch/src/main/resources/csv/stockinfo.csv Normal file
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