Merge branch 'master' into JAVA-3533

This commit is contained in:
Loredana Crusoveanu 2021-01-01 22:55:21 +02:00 committed by GitHub
commit 296fe08dde
108 changed files with 957 additions and 874 deletions

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@ -664,14 +664,12 @@
<module>spring-mvc-java-2</module>
<module>spring-mvc-velocity</module>
<module>spring-mvc-xml</module>
<module>spring-protobuf</module>
<module>spring-quartz</module>
<module>spring-reactor</module>
<module>spring-remoting</module>
<module>spring-rest-query-language</module>
<module>spring-rest-shell</module>
<module>spring-rest-simple</module>
<module>spring-resttemplate</module>
@ -1129,14 +1127,12 @@
<module>spring-mvc-java-2</module>
<module>spring-mvc-velocity</module>
<module>spring-mvc-xml</module>
<module>spring-protobuf</module>
<module>spring-quartz</module>
<module>spring-reactor</module>
<module>spring-remoting</module>
<module>spring-rest-query-language</module>
<module>spring-rest-shell</module>
<module>spring-rest-simple</module>
<module>spring-resttemplate</module>

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@ -24,6 +24,7 @@
<module>spring-boot-angular</module>
<module>spring-boot-annotations</module>
<module>spring-boot-artifacts</module>
<module>spring-boot-artifacts-2</module>
<module>spring-boot-autoconfiguration</module>
<module>spring-boot-basic-customization</module>
<module>spring-boot-basic-customization-2</module>

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@ -0,0 +1,7 @@
## Spring Boot Artifacts 2
This module contains articles about configuring the Spring Boot build process 2.
### Relevant Articles:
TBD

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@ -0,0 +1,48 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.baeldung.spring-boot-modules</groupId>
<artifactId>spring-boot-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../</relativePath>
</parent>
<artifactId>spring-boot-artifacts-2</artifactId>
<packaging>jar</packaging>
<name>spring-boot-artifacts-2</name>
<description>Demo project for Spring Boot</description>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<!-- The main class to start by executing java -jar -->
<start-class>com.baeldung.demo.DemoApplication</start-class>
</properties>
</project>

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@ -0,0 +1,11 @@
package com.baeldung.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

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@ -0,0 +1,15 @@
package com.baeldung.demo;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class DemoRestController {
@GetMapping(value = "/welcome")
public ResponseEntity<String> welcomeEndpoint() {
return ResponseEntity.ok("Welcome to Baeldung Spring Boot Demo!");
}
}

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@ -0,0 +1,3 @@
spring:
application:
name: Baeldung_SpringBoot_Demo

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@ -22,9 +22,11 @@
<module>spring-mvc-forms-jsp</module>
<module>spring-mvc-views</module>
<module>spring-mvc-webflow</module>
<module>spring-mvc-xml</module>
<module>spring-rest-angular</module>
<module>spring-rest-http</module>
<module>spring-rest-http-2</module>
<module>spring-rest-query-language</module>
<module>spring-resttemplate-2</module>
<module>spring-thymeleaf</module>
<module>spring-thymeleaf-2</module>

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@ -1,61 +1,61 @@
package com.baeldung.spring.controller;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.Resource;
import org.springframework.http.*;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.support.ServletContextResource;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
@Controller
public class ImageController {
@Autowired
private ServletContext servletContext;
@RequestMapping(value = "/image-view", method = RequestMethod.GET)
public String imageView() throws IOException {
return "image-download";
}
@RequestMapping(value = "/image-manual-response", method = RequestMethod.GET)
public void getImageAsByteArray(HttpServletResponse response) throws IOException {
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
response.setContentType(MediaType.IMAGE_JPEG_VALUE);
IOUtils.copy(in, response.getOutputStream());
}
@RequestMapping(value = "/image-byte-array", method = RequestMethod.GET)
@ResponseBody
public byte[] getImageAsByteArray() throws IOException {
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
return IOUtils.toByteArray(in);
}
@RequestMapping(value = "/image-response-entity", method = RequestMethod.GET)
public ResponseEntity<byte[]> getImageAsResponseEntity() throws IOException {
ResponseEntity<byte[]> responseEntity;
final HttpHeaders headers = new HttpHeaders();
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
byte[] media = IOUtils.toByteArray(in);
headers.setCacheControl(CacheControl.noCache().getHeaderValue());
responseEntity = new ResponseEntity<>(media, headers, HttpStatus.OK);
return responseEntity;
}
@RequestMapping(value = "/image-resource", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<Resource> getImageAsResource() {
final HttpHeaders headers = new HttpHeaders();
Resource resource = new ServletContextResource(servletContext, "/WEB-INF/images/image-example.jpg");
return new ResponseEntity<>(resource, headers, HttpStatus.OK);
}
}
package com.baeldung.spring.controller;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.Resource;
import org.springframework.http.*;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.support.ServletContextResource;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
@Controller
public class ImageController {
@Autowired
private ServletContext servletContext;
@RequestMapping(value = "/image-view", method = RequestMethod.GET)
public String imageView() throws IOException {
return "image-download";
}
@RequestMapping(value = "/image-manual-response", method = RequestMethod.GET)
public void getImageAsByteArray(HttpServletResponse response) throws IOException {
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
response.setContentType(MediaType.IMAGE_JPEG_VALUE);
IOUtils.copy(in, response.getOutputStream());
}
@RequestMapping(value = "/image-byte-array", method = RequestMethod.GET)
@ResponseBody
public byte[] getImageAsByteArray() throws IOException {
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
return IOUtils.toByteArray(in);
}
@RequestMapping(value = "/image-response-entity", method = RequestMethod.GET)
public ResponseEntity<byte[]> getImageAsResponseEntity() throws IOException {
ResponseEntity<byte[]> responseEntity;
final HttpHeaders headers = new HttpHeaders();
final InputStream in = servletContext.getResourceAsStream("/WEB-INF/images/image-example.jpg");
byte[] media = IOUtils.toByteArray(in);
headers.setCacheControl(CacheControl.noCache().getHeaderValue());
responseEntity = new ResponseEntity<>(media, headers, HttpStatus.OK);
return responseEntity;
}
@RequestMapping(value = "/image-resource", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<Resource> getImageAsResource() {
final HttpHeaders headers = new HttpHeaders();
Resource resource = new ServletContextResource(servletContext, "/WEB-INF/images/image-example.jpg");
return new ResponseEntity<>(resource, headers, HttpStatus.OK);
}
}

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@ -1,22 +1,22 @@
package com.baeldung.spring.validator;
import com.baeldung.spring.form.Person;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
@Component
public class PersonValidator implements Validator {
@Override
public boolean supports(final Class calzz) {
return Person.class.isAssignableFrom(calzz);
}
@Override
public void validate(final Object obj, final Errors errors) {
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "required.name");
}
package com.baeldung.spring.validator;
import com.baeldung.spring.form.Person;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
@Component
public class PersonValidator implements Validator {
@Override
public boolean supports(final Class calzz) {
return Person.class.isAssignableFrom(calzz);
}
@Override
public void validate(final Object obj, final Errors errors) {
ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "required.name");
}
}

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@ -1,2 +1,2 @@
required.name = Name is required!
required.name = Name is required!
NotEmpty.person.password = Password is required!

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@ -11,7 +11,7 @@
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>

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@ -1,100 +1,100 @@
package com.baeldung.persistence.dao;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Deque;
import java.util.LinkedList;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import org.springframework.data.jpa.domain.Specification;
import com.baeldung.web.util.SearchOperation;
import com.baeldung.web.util.SpecSearchCriteria;
public class GenericSpecificationsBuilder<U> {
private final List<SpecSearchCriteria> params;
public GenericSpecificationsBuilder() {
this.params = new ArrayList<>();
}
public final GenericSpecificationsBuilder<U> with(final String key, final String operation, final Object value, final String prefix, final String suffix) {
return with(null, key, operation, value, prefix, suffix);
}
public final GenericSpecificationsBuilder<U> with(final String precedenceIndicator, final String key, final String operation, final Object value, final String prefix, final String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) // the operation may be complex operation
{
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
params.add(new SpecSearchCriteria(precedenceIndicator, key, op, value));
}
return this;
}
public Specification<U> build(Function<SpecSearchCriteria, Specification<U>> converter) {
if (params.size() == 0) {
return null;
}
final List<Specification<U>> specs = params.stream()
.map(converter)
.collect(Collectors.toCollection(ArrayList::new));
Specification<U> result = specs.get(0);
for (int idx = 1; idx < specs.size(); idx++) {
result = params.get(idx)
.isOrPredicate()
? Specification.where(result)
.or(specs.get(idx))
: Specification.where(result)
.and(specs.get(idx));
}
return result;
}
public Specification<U> build(Deque<?> postFixedExprStack, Function<SpecSearchCriteria, Specification<U>> converter) {
Deque<Specification<U>> specStack = new LinkedList<>();
Collections.reverse((List<?>) postFixedExprStack);
while (!postFixedExprStack.isEmpty()) {
Object mayBeOperand = postFixedExprStack.pop();
if (!(mayBeOperand instanceof String)) {
specStack.push(converter.apply((SpecSearchCriteria) mayBeOperand));
} else {
Specification<U> operand1 = specStack.pop();
Specification<U> operand2 = specStack.pop();
if (mayBeOperand.equals(SearchOperation.AND_OPERATOR))
specStack.push(Specification.where(operand1)
.and(operand2));
else if (mayBeOperand.equals(SearchOperation.OR_OPERATOR))
specStack.push(Specification.where(operand1)
.or(operand2));
}
}
return specStack.pop();
}
}
package com.baeldung.persistence.dao;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Deque;
import java.util.LinkedList;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import org.springframework.data.jpa.domain.Specification;
import com.baeldung.web.util.SearchOperation;
import com.baeldung.web.util.SpecSearchCriteria;
public class GenericSpecificationsBuilder<U> {
private final List<SpecSearchCriteria> params;
public GenericSpecificationsBuilder() {
this.params = new ArrayList<>();
}
public final GenericSpecificationsBuilder<U> with(final String key, final String operation, final Object value, final String prefix, final String suffix) {
return with(null, key, operation, value, prefix, suffix);
}
public final GenericSpecificationsBuilder<U> with(final String precedenceIndicator, final String key, final String operation, final Object value, final String prefix, final String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) // the operation may be complex operation
{
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
params.add(new SpecSearchCriteria(precedenceIndicator, key, op, value));
}
return this;
}
public Specification<U> build(Function<SpecSearchCriteria, Specification<U>> converter) {
if (params.size() == 0) {
return null;
}
final List<Specification<U>> specs = params.stream()
.map(converter)
.collect(Collectors.toCollection(ArrayList::new));
Specification<U> result = specs.get(0);
for (int idx = 1; idx < specs.size(); idx++) {
result = params.get(idx)
.isOrPredicate()
? Specification.where(result)
.or(specs.get(idx))
: Specification.where(result)
.and(specs.get(idx));
}
return result;
}
public Specification<U> build(Deque<?> postFixedExprStack, Function<SpecSearchCriteria, Specification<U>> converter) {
Deque<Specification<U>> specStack = new LinkedList<>();
Collections.reverse((List<?>) postFixedExprStack);
while (!postFixedExprStack.isEmpty()) {
Object mayBeOperand = postFixedExprStack.pop();
if (!(mayBeOperand instanceof String)) {
specStack.push(converter.apply((SpecSearchCriteria) mayBeOperand));
} else {
Specification<U> operand1 = specStack.pop();
Specification<U> operand2 = specStack.pop();
if (mayBeOperand.equals(SearchOperation.AND_OPERATOR))
specStack.push(Specification.where(operand1)
.and(operand2));
else if (mayBeOperand.equals(SearchOperation.OR_OPERATOR))
specStack.push(Specification.where(operand1)
.or(operand2));
}
}
return specStack.pop();
}
}

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package com.baeldung.persistence.dao;
import java.util.ArrayList;
import java.util.List;
import org.springframework.data.jpa.domain.Specification;
import com.baeldung.persistence.model.User;
import com.baeldung.web.util.SearchOperation;
import com.baeldung.web.util.SpecSearchCriteria;
public final class UserSpecificationsBuilder {
private final List<SpecSearchCriteria> params;
public UserSpecificationsBuilder() {
params = new ArrayList<>();
}
// API
public final UserSpecificationsBuilder with(final String key, final String operation, final Object value, final String prefix, final String suffix) {
return with(null, key, operation, value, prefix, suffix);
}
public final UserSpecificationsBuilder with(final String orPredicate, final String key, final String operation, final Object value, final String prefix, final String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) { // the operation may be complex operation
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
params.add(new SpecSearchCriteria(orPredicate, key, op, value));
}
return this;
}
public Specification<User> build() {
if (params.size() == 0)
return null;
Specification<User> result = new UserSpecification(params.get(0));
for (int i = 1; i < params.size(); i++) {
result = params.get(i).isOrPredicate()
? Specification.where(result).or(new UserSpecification(params.get(i)))
: Specification.where(result).and(new UserSpecification(params.get(i)));
}
return result;
}
public final UserSpecificationsBuilder with(UserSpecification spec) {
params.add(spec.getCriteria());
return this;
}
public final UserSpecificationsBuilder with(SpecSearchCriteria criteria) {
params.add(criteria);
return this;
}
}
package com.baeldung.persistence.dao;
import java.util.ArrayList;
import java.util.List;
import org.springframework.data.jpa.domain.Specification;
import com.baeldung.persistence.model.User;
import com.baeldung.web.util.SearchOperation;
import com.baeldung.web.util.SpecSearchCriteria;
public final class UserSpecificationsBuilder {
private final List<SpecSearchCriteria> params;
public UserSpecificationsBuilder() {
params = new ArrayList<>();
}
// API
public final UserSpecificationsBuilder with(final String key, final String operation, final Object value, final String prefix, final String suffix) {
return with(null, key, operation, value, prefix, suffix);
}
public final UserSpecificationsBuilder with(final String orPredicate, final String key, final String operation, final Object value, final String prefix, final String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) { // the operation may be complex operation
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
params.add(new SpecSearchCriteria(orPredicate, key, op, value));
}
return this;
}
public Specification<User> build() {
if (params.size() == 0)
return null;
Specification<User> result = new UserSpecification(params.get(0));
for (int i = 1; i < params.size(); i++) {
result = params.get(i).isOrPredicate()
? Specification.where(result).or(new UserSpecification(params.get(i)))
: Specification.where(result).and(new UserSpecification(params.get(i)));
}
return result;
}
public final UserSpecificationsBuilder with(UserSpecification spec) {
params.add(spec.getCriteria());
return this;
}
public final UserSpecificationsBuilder with(SpecSearchCriteria criteria) {
params.add(criteria);
return this;
}
}

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@ -1,171 +1,171 @@
package com.baeldung.web.controller;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.data.querydsl.binding.QuerydslPredicate;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import com.baeldung.persistence.dao.GenericSpecificationsBuilder;
import com.baeldung.persistence.dao.IUserDAO;
import com.baeldung.persistence.dao.MyUserPredicatesBuilder;
import com.baeldung.persistence.dao.MyUserRepository;
import com.baeldung.persistence.dao.UserRepository;
import com.baeldung.persistence.dao.UserSpecification;
import com.baeldung.persistence.dao.UserSpecificationsBuilder;
import com.baeldung.persistence.dao.rsql.CustomRsqlVisitor;
import com.baeldung.persistence.model.MyUser;
import com.baeldung.persistence.model.User;
import com.baeldung.web.util.CriteriaParser;
import com.baeldung.web.util.SearchCriteria;
import com.baeldung.web.util.SearchOperation;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.querydsl.core.types.Predicate;
import com.querydsl.core.types.dsl.BooleanExpression;
import cz.jirutka.rsql.parser.RSQLParser;
import cz.jirutka.rsql.parser.ast.Node;
//@EnableSpringDataWebSupport
@Controller
@RequestMapping(value = "/auth/")
public class UserController {
@Autowired
private IUserDAO service;
@Autowired
private UserRepository dao;
@Autowired
private MyUserRepository myUserRepository;
public UserController() {
super();
}
// API - READ
@RequestMapping(method = RequestMethod.GET, value = "/users")
@ResponseBody
public List<User> search(@RequestParam(value = "search", required = false) String search) {
List<SearchCriteria> params = new ArrayList<SearchCriteria>();
if (search != null) {
Pattern pattern = Pattern.compile("(\\w+?)(:|<|>)(\\w+?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
params.add(new SearchCriteria(matcher.group(1), matcher.group(2), matcher.group(3)));
}
}
return service.searchUser(params);
}
@RequestMapping(method = RequestMethod.GET, value = "/users/spec")
@ResponseBody
public List<User> findAllBySpecification(@RequestParam(value = "search") String search) {
UserSpecificationsBuilder builder = new UserSpecificationsBuilder();
String operationSetExper = Joiner.on("|")
.join(SearchOperation.SIMPLE_OPERATION_SET);
Pattern pattern = Pattern.compile("(\\w+?)(" + operationSetExper + ")(\\p{Punct}?)(\\w+?)(\\p{Punct}?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(4), matcher.group(3), matcher.group(5));
}
Specification<User> spec = builder.build();
return dao.findAll(spec);
}
@GetMapping(value = "/users/espec")
@ResponseBody
public List<User> findAllByOrPredicate(@RequestParam(value = "search") String search) {
Specification<User> spec = resolveSpecification(search);
return dao.findAll(spec);
}
@GetMapping(value = "/users/spec/adv")
@ResponseBody
public List<User> findAllByAdvPredicate(@RequestParam(value = "search") String search) {
Specification<User> spec = resolveSpecificationFromInfixExpr(search);
return dao.findAll(spec);
}
protected Specification<User> resolveSpecificationFromInfixExpr(String searchParameters) {
CriteriaParser parser = new CriteriaParser();
GenericSpecificationsBuilder<User> specBuilder = new GenericSpecificationsBuilder<>();
return specBuilder.build(parser.parse(searchParameters), UserSpecification::new);
}
protected Specification<User> resolveSpecification(String searchParameters) {
UserSpecificationsBuilder builder = new UserSpecificationsBuilder();
String operationSetExper = Joiner.on("|")
.join(SearchOperation.SIMPLE_OPERATION_SET);
Pattern pattern = Pattern.compile("(\\p{Punct}?)(\\w+?)(" + operationSetExper + ")(\\p{Punct}?)(\\w+?)(\\p{Punct}?),");
Matcher matcher = pattern.matcher(searchParameters + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(3), matcher.group(5), matcher.group(4), matcher.group(6));
}
return builder.build();
}
@RequestMapping(method = RequestMethod.GET, value = "/myusers")
@ResponseBody
public Iterable<MyUser> findAllByQuerydsl(@RequestParam(value = "search") String search) {
MyUserPredicatesBuilder builder = new MyUserPredicatesBuilder();
if (search != null) {
Pattern pattern = Pattern.compile("(\\w+?)(:|<|>)(\\w+?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(3));
}
}
BooleanExpression exp = builder.build();
return myUserRepository.findAll(exp);
}
@RequestMapping(method = RequestMethod.GET, value = "/users/rsql")
@ResponseBody
public List<User> findAllByRsql(@RequestParam(value = "search") String search) {
Node rootNode = new RSQLParser().parse(search);
Specification<User> spec = rootNode.accept(new CustomRsqlVisitor<User>());
return dao.findAll(spec);
}
@RequestMapping(method = RequestMethod.GET, value = "/api/myusers")
@ResponseBody
public Iterable<MyUser> findAllByWebQuerydsl(@QuerydslPredicate(root = MyUser.class) Predicate predicate) {
return myUserRepository.findAll(predicate);
}
// API - WRITE
@RequestMapping(method = RequestMethod.POST, value = "/users")
@ResponseStatus(HttpStatus.CREATED)
public void create(@RequestBody User resource) {
Preconditions.checkNotNull(resource);
dao.save(resource);
}
@RequestMapping(method = RequestMethod.POST, value = "/myusers")
@ResponseStatus(HttpStatus.CREATED)
public void addMyUser(@RequestBody MyUser resource) {
Preconditions.checkNotNull(resource);
myUserRepository.save(resource);
}
}
package com.baeldung.web.controller;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.data.querydsl.binding.QuerydslPredicate;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import com.baeldung.persistence.dao.GenericSpecificationsBuilder;
import com.baeldung.persistence.dao.IUserDAO;
import com.baeldung.persistence.dao.MyUserPredicatesBuilder;
import com.baeldung.persistence.dao.MyUserRepository;
import com.baeldung.persistence.dao.UserRepository;
import com.baeldung.persistence.dao.UserSpecification;
import com.baeldung.persistence.dao.UserSpecificationsBuilder;
import com.baeldung.persistence.dao.rsql.CustomRsqlVisitor;
import com.baeldung.persistence.model.MyUser;
import com.baeldung.persistence.model.User;
import com.baeldung.web.util.CriteriaParser;
import com.baeldung.web.util.SearchCriteria;
import com.baeldung.web.util.SearchOperation;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
import com.querydsl.core.types.Predicate;
import com.querydsl.core.types.dsl.BooleanExpression;
import cz.jirutka.rsql.parser.RSQLParser;
import cz.jirutka.rsql.parser.ast.Node;
//@EnableSpringDataWebSupport
@Controller
@RequestMapping(value = "/auth/")
public class UserController {
@Autowired
private IUserDAO service;
@Autowired
private UserRepository dao;
@Autowired
private MyUserRepository myUserRepository;
public UserController() {
super();
}
// API - READ
@RequestMapping(method = RequestMethod.GET, value = "/users")
@ResponseBody
public List<User> search(@RequestParam(value = "search", required = false) String search) {
List<SearchCriteria> params = new ArrayList<SearchCriteria>();
if (search != null) {
Pattern pattern = Pattern.compile("(\\w+?)(:|<|>)(\\w+?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
params.add(new SearchCriteria(matcher.group(1), matcher.group(2), matcher.group(3)));
}
}
return service.searchUser(params);
}
@RequestMapping(method = RequestMethod.GET, value = "/users/spec")
@ResponseBody
public List<User> findAllBySpecification(@RequestParam(value = "search") String search) {
UserSpecificationsBuilder builder = new UserSpecificationsBuilder();
String operationSetExper = Joiner.on("|")
.join(SearchOperation.SIMPLE_OPERATION_SET);
Pattern pattern = Pattern.compile("(\\w+?)(" + operationSetExper + ")(\\p{Punct}?)(\\w+?)(\\p{Punct}?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(4), matcher.group(3), matcher.group(5));
}
Specification<User> spec = builder.build();
return dao.findAll(spec);
}
@GetMapping(value = "/users/espec")
@ResponseBody
public List<User> findAllByOrPredicate(@RequestParam(value = "search") String search) {
Specification<User> spec = resolveSpecification(search);
return dao.findAll(spec);
}
@GetMapping(value = "/users/spec/adv")
@ResponseBody
public List<User> findAllByAdvPredicate(@RequestParam(value = "search") String search) {
Specification<User> spec = resolveSpecificationFromInfixExpr(search);
return dao.findAll(spec);
}
protected Specification<User> resolveSpecificationFromInfixExpr(String searchParameters) {
CriteriaParser parser = new CriteriaParser();
GenericSpecificationsBuilder<User> specBuilder = new GenericSpecificationsBuilder<>();
return specBuilder.build(parser.parse(searchParameters), UserSpecification::new);
}
protected Specification<User> resolveSpecification(String searchParameters) {
UserSpecificationsBuilder builder = new UserSpecificationsBuilder();
String operationSetExper = Joiner.on("|")
.join(SearchOperation.SIMPLE_OPERATION_SET);
Pattern pattern = Pattern.compile("(\\p{Punct}?)(\\w+?)(" + operationSetExper + ")(\\p{Punct}?)(\\w+?)(\\p{Punct}?),");
Matcher matcher = pattern.matcher(searchParameters + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(3), matcher.group(5), matcher.group(4), matcher.group(6));
}
return builder.build();
}
@RequestMapping(method = RequestMethod.GET, value = "/myusers")
@ResponseBody
public Iterable<MyUser> findAllByQuerydsl(@RequestParam(value = "search") String search) {
MyUserPredicatesBuilder builder = new MyUserPredicatesBuilder();
if (search != null) {
Pattern pattern = Pattern.compile("(\\w+?)(:|<|>)(\\w+?),");
Matcher matcher = pattern.matcher(search + ",");
while (matcher.find()) {
builder.with(matcher.group(1), matcher.group(2), matcher.group(3));
}
}
BooleanExpression exp = builder.build();
return myUserRepository.findAll(exp);
}
@RequestMapping(method = RequestMethod.GET, value = "/users/rsql")
@ResponseBody
public List<User> findAllByRsql(@RequestParam(value = "search") String search) {
Node rootNode = new RSQLParser().parse(search);
Specification<User> spec = rootNode.accept(new CustomRsqlVisitor<User>());
return dao.findAll(spec);
}
@RequestMapping(method = RequestMethod.GET, value = "/api/myusers")
@ResponseBody
public Iterable<MyUser> findAllByWebQuerydsl(@QuerydslPredicate(root = MyUser.class) Predicate predicate) {
return myUserRepository.findAll(predicate);
}
// API - WRITE
@RequestMapping(method = RequestMethod.POST, value = "/users")
@ResponseStatus(HttpStatus.CREATED)
public void create(@RequestBody User resource) {
Preconditions.checkNotNull(resource);
dao.save(resource);
}
@RequestMapping(method = RequestMethod.POST, value = "/myusers")
@ResponseStatus(HttpStatus.CREATED)
public void addMyUser(@RequestBody MyUser resource) {
Preconditions.checkNotNull(resource);
myUserRepository.save(resource);
}
}

View File

@ -1,36 +1,36 @@
package com.baeldung.web.util;
public enum SearchOperation {
EQUALITY, NEGATION, GREATER_THAN, LESS_THAN, LIKE, STARTS_WITH, ENDS_WITH, CONTAINS;
public static final String[] SIMPLE_OPERATION_SET = { ":", "!", ">", "<", "~" };
public static final String OR_PREDICATE_FLAG = "'";
public static final String ZERO_OR_MORE_REGEX = "*";
public static final String OR_OPERATOR = "OR";
public static final String AND_OPERATOR = "AND";
public static final String LEFT_PARANTHESIS = "(";
public static final String RIGHT_PARANTHESIS = ")";
public static SearchOperation getSimpleOperation(final char input) {
switch (input) {
case ':':
return EQUALITY;
case '!':
return NEGATION;
case '>':
return GREATER_THAN;
case '<':
return LESS_THAN;
case '~':
return LIKE;
default:
return null;
}
}
}
package com.baeldung.web.util;
public enum SearchOperation {
EQUALITY, NEGATION, GREATER_THAN, LESS_THAN, LIKE, STARTS_WITH, ENDS_WITH, CONTAINS;
public static final String[] SIMPLE_OPERATION_SET = { ":", "!", ">", "<", "~" };
public static final String OR_PREDICATE_FLAG = "'";
public static final String ZERO_OR_MORE_REGEX = "*";
public static final String OR_OPERATOR = "OR";
public static final String AND_OPERATOR = "AND";
public static final String LEFT_PARANTHESIS = "(";
public static final String RIGHT_PARANTHESIS = ")";
public static SearchOperation getSimpleOperation(final char input) {
switch (input) {
case ':':
return EQUALITY;
case '!':
return NEGATION;
case '>':
return GREATER_THAN;
case '<':
return LESS_THAN;
case '~':
return LIKE;
default:
return null;
}
}
}

View File

@ -1,82 +1,82 @@
package com.baeldung.web.util;
public class SpecSearchCriteria {
private String key;
private SearchOperation operation;
private Object value;
private boolean orPredicate;
public SpecSearchCriteria() {
}
public SpecSearchCriteria(final String key, final SearchOperation operation, final Object value) {
super();
this.key = key;
this.operation = operation;
this.value = value;
}
public SpecSearchCriteria(final String orPredicate, final String key, final SearchOperation operation, final Object value) {
super();
this.orPredicate = orPredicate != null && orPredicate.equals(SearchOperation.OR_PREDICATE_FLAG);
this.key = key;
this.operation = operation;
this.value = value;
}
public SpecSearchCriteria(String key, String operation, String prefix, String value, String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) { // the operation may be complex operation
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
}
this.key = key;
this.operation = op;
this.value = value;
}
public String getKey() {
return key;
}
public void setKey(final String key) {
this.key = key;
}
public SearchOperation getOperation() {
return operation;
}
public void setOperation(final SearchOperation operation) {
this.operation = operation;
}
public Object getValue() {
return value;
}
public void setValue(final Object value) {
this.value = value;
}
public boolean isOrPredicate() {
return orPredicate;
}
public void setOrPredicate(boolean orPredicate) {
this.orPredicate = orPredicate;
}
}
package com.baeldung.web.util;
public class SpecSearchCriteria {
private String key;
private SearchOperation operation;
private Object value;
private boolean orPredicate;
public SpecSearchCriteria() {
}
public SpecSearchCriteria(final String key, final SearchOperation operation, final Object value) {
super();
this.key = key;
this.operation = operation;
this.value = value;
}
public SpecSearchCriteria(final String orPredicate, final String key, final SearchOperation operation, final Object value) {
super();
this.orPredicate = orPredicate != null && orPredicate.equals(SearchOperation.OR_PREDICATE_FLAG);
this.key = key;
this.operation = operation;
this.value = value;
}
public SpecSearchCriteria(String key, String operation, String prefix, String value, String suffix) {
SearchOperation op = SearchOperation.getSimpleOperation(operation.charAt(0));
if (op != null) {
if (op == SearchOperation.EQUALITY) { // the operation may be complex operation
final boolean startWithAsterisk = prefix != null && prefix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
final boolean endWithAsterisk = suffix != null && suffix.contains(SearchOperation.ZERO_OR_MORE_REGEX);
if (startWithAsterisk && endWithAsterisk) {
op = SearchOperation.CONTAINS;
} else if (startWithAsterisk) {
op = SearchOperation.ENDS_WITH;
} else if (endWithAsterisk) {
op = SearchOperation.STARTS_WITH;
}
}
}
this.key = key;
this.operation = op;
this.value = value;
}
public String getKey() {
return key;
}
public void setKey(final String key) {
this.key = key;
}
public SearchOperation getOperation() {
return operation;
}
public void setOperation(final SearchOperation operation) {
this.operation = operation;
}
public Object getValue() {
return value;
}
public void setValue(final Object value) {
this.value = value;
}
public boolean isOrPredicate() {
return orPredicate;
}
public void setOrPredicate(boolean orPredicate) {
this.orPredicate = orPredicate;
}
}

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