Add ability for user to utilize external DBs for Multi-DB sample

Updated based on code review

spring-cloud-task-samples/multiple-datasources/src/main/java/io/spring/configuration/EmbeddedDataSourceConfiguration.java

@@ -20,14 +20,19 @@ import javax.sql.DataSource;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Profile;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
 import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
 
 /**
+ * Creates two data sources that use embedded databases.
+ *
  * @author Michael Minella
+ * @author Glenn Renfro
  */
 @Configuration
-public class DataSourceConfiguration {
+@Profile("embedded")
+public class EmbeddedDataSourceConfiguration {
 
 	@Bean
 	public DataSource dataSource() {

spring-cloud-task-samples/multiple-datasources/src/main/java/io/spring/configuration/ExternalDataSourceConfiguration.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2018-2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.spring.configuration;
+
+import javax.sql.DataSource;
+
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.context.annotation.Profile;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+
+/**
+ * Creates two data sources that use external databases.
+ * @author Glenn Renfro
+ */
+@Configuration
+@Profile("external")
+public class ExternalDataSourceConfiguration {
+
+	@Bean(name = "springDataSourceProperties")
+	@ConfigurationProperties("spring.datasource")
+	@Primary
+	public DataSourceProperties springDataSourceProperties() {
+		return new DataSourceProperties();
+	}
+
+	@Bean(name = "secondDataSourceProperties")
+	@ConfigurationProperties("second.datasource")
+	public DataSourceProperties myDataSourceProperties() {
+		return new DataSourceProperties();
+	}
+
+	@Bean(name = "springDataSource")
+	@Primary
+	public DataSource dataSource(@Qualifier("springDataSourceProperties")DataSourceProperties springDataSourceProperties) {
+		return DataSourceBuilder.create().driverClassName(springDataSourceProperties.getDriverClassName()).
+			url(springDataSourceProperties.getUrl()).
+			password(springDataSourceProperties.getPassword()).
+			username(springDataSourceProperties.getUsername()).
+			build();
+	}
+
+	@Bean
+	public DataSource secondDataSource(@Qualifier("secondDataSourceProperties") DataSourceProperties secondDataSourceProperties) {
+		return DataSourceBuilder.create().driverClassName(secondDataSourceProperties.getDriverClassName()).
+			url(secondDataSourceProperties.getUrl()).
+			password(secondDataSourceProperties.getPassword()).
+			username(secondDataSourceProperties.getUsername()).
+			build();
+	}
+}

spring-cloud-task-samples/multiple-datasources/src/main/resources/application.properties

@@ -1,2 +1,4 @@
 spring.application.name=Demo Multiple DataSources Task
 logging.level.org.springframework.cloud.task=DEBUG
+
+spring.profiles.active=embedded