Bael 736 (eugenp#1685)

* dynamic validation

* small fixes

* remove set property

* fix conflicts

* fix conflicts

* add optional

* small fix

* update get

Author: lor6

spring-boot/src/main/java/com/baeldung/dynamicvalidation/ContactInfoValidator.java

@@ -2,6 +2,7 @@
 
 import com.baeldung.dynamicvalidation.dao.ContactInfoExpressionRepository;
 import com.baeldung.dynamicvalidation.model.ContactInfoExpression;
+import org.apache.log4j.Logger;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.thymeleaf.util.StringUtils;
@@ -12,27 +13,34 @@
 
 public class ContactInfoValidator implements ConstraintValidator<ContactInfo, String> {
 
+    private static final Logger LOG = Logger.getLogger(ContactInfoValidator.class);
+
     @Autowired
     private ContactInfoExpressionRepository expressionRepository;
 
     @Value("${contactInfoType}")
     String expressionType;
 
+    private String pattern;
+
     @Override
     public void initialize(final ContactInfo contactInfo) {
+        if (StringUtils.isEmptyOrWhitespace(expressionType)) {
+            LOG.error("Contact info type missing!");
+        } else {
+            pattern = expressionRepository.findOne(expressionType)
+                .map(ContactInfoExpression::getPattern)
+                .orElse("");
+        }
     }
 
     @Override
     public boolean isValid(final String value, final ConstraintValidatorContext context) {
-        if (StringUtils.isEmptyOrWhitespace(expressionType)) {
-            return false;
+        if (!StringUtils.isEmptyOrWhitespace(pattern)) {
+            return Pattern.matches(pattern, value);
         }
-
-        return expressionRepository
-          .findOne(expressionType)
-          .map(ContactInfoExpression::getPattern)
-          .map(p -> Pattern.matches(p, value))
-          .orElse(false);
+        LOG.error("Contact info pattern missing!");
+        return false;
     }
 
 }

spring-boot/src/main/java/com/baeldung/dynamicvalidation/config/CustomerController.java

@@ -1,10 +1,7 @@
 package com.baeldung.dynamicvalidation.config;
 
-import java.util.List;
-
 import javax.validation.Valid;
 
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.validation.BindingResult;

spring-boot/src/main/java/com/baeldung/dynamicvalidation/config/PersistenceConfig.java

@@ -6,7 +6,6 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
-import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
@@ -16,11 +15,6 @@
 @Configuration
 public class PersistenceConfig {
 
-    @Bean
-    public JdbcTemplate getJdbcTemplate() {
-        return new JdbcTemplate(dataSource());
-    }
-
     @Bean
     public DataSource dataSource() {
         EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();