Support for setting credentials and vhost in rabbit addresses

User can now add credentials, vhost and protocol prefix (amqp://)
to any or all of the addresses, extending the format beyond that accepted
bu the rabbitmq client, but making it cloud friendly. Only one of
the addresses needs those properties and all are optional. Port
also defaults to 5672 in an address.

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/amqp/RabbitProperties.java

@@ -70,13 +70,46 @@ public class RabbitProperties {
 	}
 
 	public void setAddresses(String addresses) {
-		this.addresses = addresses;
+		this.addresses = parseAddresses(addresses);
 	}
 
 	public String getAddresses() {
 		return (this.addresses == null ? this.host + ":" + this.port : this.addresses);
 	}
 
+	private String parseAddresses(String addresses) {
+		StringBuilder result = new StringBuilder();
+		for (String address : StringUtils.commaDelimitedListToSet(addresses)) {
+			address = address.trim();
+			if (address.startsWith("amqp://")) {
+				address = address.substring("amqp://".length());
+			}
+			if (address.contains("@")) {
+				String[] split = StringUtils.split(address, "@");
+				String creds = split[0];
+				address = split[1];
+				split = StringUtils.split(creds, ":");
+				this.username = split[0];
+				if (split.length > 0) {
+					this.password = split[1];
+				}
+			}
+			int index = address.indexOf("/");
+			if (index >= 0 && index < address.length()) {
+				this.virtualHost = address.substring(index + 1);
+				address = address.substring(0, index);
+			}
+			if (result.length() > 0) {
+				result.append(",");
+			}
+			if (!address.contains(":")) {
+				address = address + ":" + this.port;
+			}
+			result.append(address);
+		}
+		return result.length() > 0 ? result.toString() : null;
+	}
+
 	public void setPort(int port) {
 		this.port = port;
 	}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/amqp/RabbitPropertiesTests.java

@@ -50,6 +50,34 @@ public class RabbitPropertiesTests {
 		assertEquals(9999, this.properties.getPort());
 	}
 
+	@Test
+	public void addressesDoubleValuedWithCredentials() {
+		this.properties.setAddresses("myhost:9999,root:password@otherhost:1111/host");
+		assertNull(this.properties.getHost());
+		assertEquals(9999, this.properties.getPort());
+		assertEquals("root", this.properties.getUsername());
+		assertEquals("host", this.properties.getVirtualHost());
+	}
+
+	@Test
+	public void addressesSingleValuedWithCredentials() {
+		this.properties.setAddresses("amqp://root:password@otherhost:1111/host");
+		assertEquals("otherhost", this.properties.getHost());
+		assertEquals(1111, this.properties.getPort());
+		assertEquals("root", this.properties.getUsername());
+		assertEquals("host", this.properties.getVirtualHost());
+	}
+
+	@Test
+	public void addressesSingleValuedWithCredentialsDefaultPort() {
+		this.properties.setAddresses("amqp://root:password@lemur.cloudamqp.com/host");
+		assertEquals("lemur.cloudamqp.com", this.properties.getHost());
+		assertEquals(5672, this.properties.getPort());
+		assertEquals("root", this.properties.getUsername());
+		assertEquals("host", this.properties.getVirtualHost());
+		assertEquals("lemur.cloudamqp.com:5672", this.properties.getAddresses());
+	}
+
 	@Test
 	public void testDefaultVirtualHost() {
 		this.properties.setVirtualHost("/");