BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

spring-boot-jasypt/src/main/java/com/baeldung/jasypt/Main.java

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+package com.baeldung.jasypt;
+
+import org.jasypt.encryption.StringEncryptor;
+import org.jasypt.encryption.pbe.PooledPBEStringEncryptor;
+import org.jasypt.encryption.pbe.config.SimpleStringPBEConfig;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+
+import com.ulisesbocchio.jasyptspringboot.annotation.EnableEncryptableProperties;
+
+@SpringBootApplication
+@ComponentScan(basePackages = { "com.baeldung.jasypt" })
+@EnableEncryptableProperties
+public class Main {
+    public static void main(String[] args) {
+        new SpringApplicationBuilder().sources(Main.class).run(args);
+    }
+
+    @Bean(name = "encryptorBean")
+    public StringEncryptor stringEncryptor() {
+        PooledPBEStringEncryptor encryptor = new PooledPBEStringEncryptor();
+        SimpleStringPBEConfig config = new SimpleStringPBEConfig();
+        config.setPassword("password");
+        config.setAlgorithm("PBEWithMD5AndDES");
+        config.setKeyObtentionIterations("1000");
+        config.setPoolSize("1");
+        config.setProviderName("SunJCE");
+        config.setSaltGeneratorClassName("org.jasypt.salt.RandomSaltGenerator");
+        config.setStringOutputType("base64");
+        encryptor.setConfig(config);
+        return encryptor;
+    }
+}

spring-boot-jasypt/src/main/java/com/baeldung/jasypt/simple/AppConfigForJasyptSimple.java

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+package com.baeldung.jasypt.simple;
+
+import org.springframework.context.annotation.Configuration;
+
+import com.ulisesbocchio.jasyptspringboot.annotation.EncryptablePropertySource;
+
+@Configuration
+@EncryptablePropertySource(value = "encryptedv2.properties")
+public class AppConfigForJasyptSimple {
+}

spring-boot-jasypt/src/main/java/com/baeldung/jasypt/simple/PropertyServiceForJasyptSimple.java

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+package com.baeldung.jasypt.simple;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+@Service
+public class PropertyServiceForJasyptSimple {
+
+    @Value("${encryptedv2.property}")
+    private String property;
+
+    public String getProperty() {
+        return property;
+    }
+}

spring-boot-jasypt/src/main/java/com/baeldung/jasypt/starter/AppConfigForJasyptStarter.java

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+package com.baeldung.jasypt.starter;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+@Configuration
+@PropertySource(value = "encrypted.properties")
+public class AppConfigForJasyptStarter {
+}

spring-boot-jasypt/src/main/java/com/baeldung/jasypt/starter/PropertyServiceForJasyptStarter.java

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+package com.baeldung.jasypt.starter;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Service;
+
+@Service
+public class PropertyServiceForJasyptStarter {
+
+    @Value("${encrypted.property}")
+    private String property;
+
+    public String getProperty() {
+        return property;
+    }
+
+    public String getPasswordUsingEnvironment(Environment environment) {
+        return environment.getProperty("encrypted.property");
+    }
+}

spring-boot-jasypt/src/main/resources/application.properties

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+jasypt.encryptor.bean=encryptorBean
+encryptedv3.property=ENC(askygdq8PHapYFnlX6WsTwZZOxWInq+i)
+

spring-boot-jasypt/src/main/resources/encrypted.properties

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+encrypted.property=ENC(uTSqb9grs1+vUv3iN8lItC0kl65lMG+8)

spring-boot-jasypt/src/main/resources/encryptedv2.properties

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+encryptedv2.property=ENC(dQWokHUXXFe+OqXRZYWu22BpXoRZ0Drt)

spring-boot-jasypt/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/CustomJasyptIntegrationTest.java

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+package com.baeldung.jasypt;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ApplicationContext;
+import org.springframework.core.env.Environment;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.jasypt.Main;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = {Main.class})
+public class CustomJasyptIntegrationTest {
+
+    @Autowired
+    ApplicationContext appCtx;
+
+    @Test
+    public void whenConfiguredExcryptorUsed_ReturnCustomEncryptor() {
+        Environment environment = appCtx.getBean(Environment.class);
+        assertEquals("Password@3", environment.getProperty("encryptedv3.property"));
+    }
+}

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/JasyptSimpleIntegrationTest.java

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+package com.baeldung.jasypt;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ApplicationContext;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.jasypt.simple.PropertyServiceForJasyptSimple;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class JasyptSimpleIntegrationTest {
+
+    @Autowired
+    ApplicationContext appCtx;
+
+    @Test
+    public void whenDecryptedPasswordNeeded_GetFromService() {
+        System.setProperty("jasypt.encryptor.password", "password");
+        PropertyServiceForJasyptSimple service = appCtx.getBean(PropertyServiceForJasyptSimple.class);
+        assertEquals("Password@2", service.getProperty());
+    }
+
+}

spring-boot-jasypt/src/test/java/com/baeldung/jasypt/JasyptWithStarterIntegrationTest.java

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+package com.baeldung.jasypt;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ApplicationContext;
+import org.springframework.core.env.Environment;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.jasypt.starter.PropertyServiceForJasyptStarter;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class JasyptWithStarterIntegrationTest {
+
+    @Autowired
+    ApplicationContext appCtx;
+
+    @Test
+    public void whenDecryptedPasswordNeeded_GetFromService() {
+        System.setProperty("jasypt.encryptor.password", "password");
+        PropertyServiceForJasyptStarter service = appCtx.getBean(PropertyServiceForJasyptStarter.class);
+        assertEquals("Password@1", service.getProperty());
+        Environment environment = appCtx.getBean(Environment.class);
+        assertEquals("Password@1", service.getPasswordUsingEnvironment(environment));
+    }
+}

spring-boot-jasypt/src/test/java/org/baeldung/SpringContextIntegrationTest.java

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+package org.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.jasypt.Main;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = Main.class)
+public class SpringContextIntegrationTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-boot-jasypt/src/test/java/org/baeldung/SpringContextTest.java

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+package org.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.jasypt.Main;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = Main.class)
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}