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BAEL-1800 (#4377)

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* BAEL-1800 - Code for http://www.baeldung.com/spring-boot-starters and http://www.baeldung.com/spring-mvc-custom-data-binder

* BAEL-1800 - Code for http://www.baeldung.com/maven-webjars and http://www.baeldung.com/deployable-fat-jar-spring-boot

* BAEL-1800 - Code for http://www.baeldung.com/spring-boot-shutdown

* BAEL-1800 - Code for http://www.baeldung.com/spring-boot-shutdown

* BAEL-1800 - Code for http://www.baeldung.com/spring-boot-dependency-management-custom-parent
This commit is contained in:
Eric Goebelbecker
2018-05-30 22:34:01 -04:00
committed by maibin
parent 8e36e2b155
commit 6e94f0343c
75 changed files with 965 additions and 50 deletions
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50
spring-boot/src/main/java/com/baeldung/shutdown/Application.java
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package com.baeldung.shutdown;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.WebApplicationType;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.ApplicationPidFileWriter;
import org.springframework.context.ConfigurableApplicationContext;
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
// closeApplication();
// exitApplication();
// writePID();
}
private static void closeApplication() {
ConfigurableApplicationContext ctx = new SpringApplicationBuilder(Application.class).web(WebApplicationType.NONE).run();
System.out.println("Spring Boot application started");
ctx.getBean(TerminateBean.class);
ctx.close();
}
private static void exitApplication() {
ConfigurableApplicationContext ctx = new SpringApplicationBuilder(Application.class).web(WebApplicationType.NONE).run();
int exitCode = SpringApplication.exit(ctx, () -> {
// return the error code
return 0;
});
System.out.println("Exit Spring Boot");
System.exit(exitCode);
}
private static void writePID() {
SpringApplicationBuilder app = new SpringApplicationBuilder(Application.class).web(WebApplicationType.NONE);
app.build().addListeners(new ApplicationPidFileWriter("./bin/shutdown.pid"));
app.run();
}
}

15
spring-boot/src/main/java/com/baeldung/shutdown/ShutdownConfig.java
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package com.baeldung.shutdown;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan(basePackages = "com.baeldung.shutdown")
public class ShutdownConfig {
@Bean
public TerminateBean getTerminateBean() {
return new TerminateBean();
}
}

11
spring-boot/src/main/java/com/baeldung/shutdown/TerminateBean.java
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package com.baeldung.shutdown;
import javax.annotation.PreDestroy;
public class TerminateBean {
@PreDestroy
public void onDestroy() throws Exception {
System.out.println("Spring Container is destroyed!");
}
}

25
spring-boot/src/main/java/com/baeldung/shutdown/shutdown/ShutdownController.java
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@@ -1,25 +0,0 @@
package com.baeldung.shutdown.shutdown;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class ShutdownController implements ApplicationContextAware {
private ApplicationContext context;
@PostMapping("/shutdownContext")
public void shutdownContext() {
((ConfigurableApplicationContext) context).close();
}
@Override
public void setApplicationContext(ApplicationContext ctx) throws BeansException {
this.context = ctx;
}
}

15
spring-boot/src/main/java/com/baeldung/webjar/TestController.java
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package com.baeldung.webjar;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class TestController {
@GetMapping(value = "/")
public String welcome(Model model) {
return "index";
}
}

12
spring-boot/src/main/java/com/baeldung/webjar/WebjarsdemoApplication.java
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@@ -1,12 +0,0 @@
package com.baeldung.webjar;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class WebjarsdemoApplication {
public static void main(String[] args) {
SpringApplication.run(WebjarsdemoApplication.class, args);
}
}

28
spring-boot/src/main/java/org/baeldung/boot/config/WebConfig.java
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@@ -1,28 +0,0 @@
package org.baeldung.boot.config;
import org.baeldung.boot.converter.GenericBigDecimalConverter;
import org.baeldung.boot.converter.StringToEmployeeConverter;
import org.baeldung.boot.converter.StringToEnumConverterFactory;
import org.baeldung.boot.web.resolver.HeaderVersionArgumentResolver;
import org.springframework.context.annotation.Configuration;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.util.List;
@Configuration
public class WebConfig implements WebMvcConfigurer {
@Override
public void addArgumentResolvers(final List<HandlerMethodArgumentResolver> argumentResolvers) {
argumentResolvers.add(new HeaderVersionArgumentResolver());
}
@Override
public void addFormatters(FormatterRegistry registry) {
registry.addConverter(new StringToEmployeeConverter());
registry.addConverterFactory(new StringToEnumConverterFactory());
registry.addConverter(new GenericBigDecimalConverter());
}
}

58
spring-boot/src/main/java/org/baeldung/boot/controller/GenericEntityController.java
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package org.baeldung.boot.controller;
import org.baeldung.boot.domain.GenericEntity;
import org.baeldung.boot.domain.Modes;
import org.baeldung.boot.web.resolver.Version;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
@RestController
public class GenericEntityController {
private List<GenericEntity> entityList = new ArrayList<>();
{
entityList.add(new GenericEntity(1l, "entity_1"));
entityList.add(new GenericEntity(2l, "entity_2"));
entityList.add(new GenericEntity(3l, "entity_3"));
entityList.add(new GenericEntity(4l, "entity_4"));
}
@GetMapping("/entity/all")
public List<GenericEntity> findAll() {
return entityList;
}
@PostMapping("/entity")
public GenericEntity addEntity(GenericEntity entity) {
entityList.add(entity);
return entity;
}
@GetMapping("/entity/findby/{id}")
public GenericEntity findById(@PathVariable Long id) {
return entityList.stream().filter(entity -> entity.getId().equals(id)).findFirst().get();
}
@GetMapping("/entity/findbydate/{date}")
public GenericEntity findByDate(@PathVariable("date") LocalDateTime date) {
return entityList.stream().findFirst().get();
}
@GetMapping("/entity/findbymode/{mode}")
public GenericEntity findByEnum(@PathVariable("mode") Modes mode) {
return entityList.stream().findFirst().get();
}
@GetMapping("/entity/findbyversion")
public ResponseEntity findByVersion(@Version String version) {
return version != null ? new ResponseEntity(entityList.stream().findFirst().get(), HttpStatus.OK) : new ResponseEntity(HttpStatus.NOT_FOUND);
}
}

34
spring-boot/src/main/java/org/baeldung/boot/converter/GenericBigDecimalConverter.java
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package org.baeldung.boot.converter;
import com.google.common.collect.ImmutableSet;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.GenericConverter;
import java.math.BigDecimal;
import java.util.Set;
public class GenericBigDecimalConverter implements GenericConverter {
@Override
public Set<ConvertiblePair> getConvertibleTypes() {
ConvertiblePair[] pairs = new ConvertiblePair[] { new ConvertiblePair(Number.class, BigDecimal.class), new ConvertiblePair(String.class, BigDecimal.class) };
return ImmutableSet.copyOf(pairs);
}
@Override
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
if (sourceType.getType() == BigDecimal.class) {
return source;
}
if (sourceType.getType() == String.class) {
String number = (String) source;
return new BigDecimal(number);
} else {
Number number = (Number) source;
BigDecimal converted = new BigDecimal(number.doubleValue());
return converted.setScale(2, BigDecimal.ROUND_HALF_EVEN);
}
}
}

13
spring-boot/src/main/java/org/baeldung/boot/converter/StringToEmployeeConverter.java
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package org.baeldung.boot.converter;
import com.baeldung.toggle.Employee;
import org.springframework.core.convert.converter.Converter;
public class StringToEmployeeConverter implements Converter<String, Employee> {
@Override
public Employee convert(String from) {
String[] data = from.split(",");
return new Employee(Long.parseLong(data[0]), Double.parseDouble(data[1]));
}
}

27
spring-boot/src/main/java/org/baeldung/boot/converter/StringToEnumConverterFactory.java
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package org.baeldung.boot.converter;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;
@Component
public class StringToEnumConverterFactory implements ConverterFactory<String, Enum> {
private static class StringToEnumConverter<T extends Enum> implements Converter<String, T> {
private Class<T> enumType;
public StringToEnumConverter(Class<T> enumType) {
this.enumType = enumType;
}
public T convert(String source) {
return (T) Enum.valueOf(this.enumType, source.trim());
}
}
@Override
public <T extends Enum> Converter<String, T> getConverter(final Class<T> targetType) {
return new StringToEnumConverter(targetType);
}
}

16
spring-boot/src/main/java/org/baeldung/boot/converter/StringToLocalDateTimeConverter.java
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package org.baeldung.boot.converter;
import org.springframework.core.convert.converter.Converter;
import org.springframework.stereotype.Component;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
@Component
public class StringToLocalDateTimeConverter implements Converter<String, LocalDateTime> {
@Override
public LocalDateTime convert(final String source) {
return LocalDateTime.parse(source, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
}
}

15
spring-boot/src/main/java/org/baeldung/boot/converter/controller/StringToEmployeeConverterController.java
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package org.baeldung.boot.converter.controller;
import com.baeldung.toggle.Employee;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
@RestController
@RequestMapping("/string-to-employee")
public class StringToEmployeeConverterController {
@GetMapping
public ResponseEntity<Object> getStringToEmployee(@RequestParam("employee") Employee employee) {
return ResponseEntity.ok(employee);
}
}

26
spring-boot/src/main/java/org/baeldung/boot/web/resolver/HeaderVersionArgumentResolver.java
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package org.baeldung.boot.web.resolver;
import org.springframework.core.MethodParameter;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;
import javax.servlet.http.HttpServletRequest;
@Component
public class HeaderVersionArgumentResolver implements HandlerMethodArgumentResolver {
@Override
public boolean supportsParameter(final MethodParameter methodParameter) {
return methodParameter.getParameterAnnotation(Version.class) != null;
}
@Override
public Object resolveArgument(final MethodParameter methodParameter, final ModelAndViewContainer modelAndViewContainer, final NativeWebRequest nativeWebRequest, final WebDataBinderFactory webDataBinderFactory) throws Exception {
HttpServletRequest request = (HttpServletRequest) nativeWebRequest.getNativeRequest();
return request.getHeader("Version");
}
}

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spring-boot/src/main/java/org/baeldung/boot/web/resolver/Version.java
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package org.baeldung.boot.web.resolver;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER)
public @interface Version {
}