This presentation talks about how your Java EE and node.js applications can easily consume various cloud services available in the IBM Bluemix cloud platform. IBM Bluemix is based CloudFoundry.

1. © 2015 IBM Corporation
Easy Integration of
Bluemix Services with
Your Applications
Junjie Cai
Bluemix runtime lead architect

2. Agenda
• Bluemix overview
• Using resource services in your Java web app
• Using operational services for your Java web app
• How it works
1

3. New Models of EngagementSystems of Record
Data & Transaction Integrity Smarter Devices & Assets
• Data & Transactions
• App Infrastructure
• Virtualized Resources
• Expanding Interface Modalities
• Big Data and Analytics
• Social Networking
Next
Generation
Architectures
New models of product & service innovation are emerging
2

4. Bluemix was built from the ground up with a user-based and design-centric approach.
It addresses these personas and key needs.
Our users include novice,
born-on-the-cloud, and
enterprise developers.
Want to compose
applications quickly with
useful APIs, to avoid
tedious backend config.
Expect fast time-to-value,
simplicity, flexibility, clear
documentation.
Failing
Fast
Seconds to
Deploy
Friction
Free
Any
Language
Continuous
Integration
Mobile
Ready
Focus on
Code
Choice of
Tools
Useful
APIs
Bluemix Goals:
Focus on the Cloud & Enterprise Application Developer
3

5. Bluemix: IBM’s Cloud Platform
• DevOps
• Big Data
• Mobile
• Watson
• Business Analytics
Bluemix service categories
• Database
• Web and application
• Security
• Internet of Things
• Integration
• Containers
• Virtual Machines
Developer experience
• Rapidly deploy and scale
applications in any language.
• Compose applications quickly
with useful APIs and services
and avoid tedious backend
config.
• Realize fast time-to-value with
simplicity, flexibility and clear
documentation.
Enterprise capability
• Securely integrate with existing
on-prem data and systems.
• Choose from flexible
deployment models.
• Manage the full application
lifecycle with DevOps.
• Develop and deploy on a
platform built on a foundation of
open technology.
Built on a foundation of open
technology.
Build, run, scale, manage, integrate & secure applications in the cloud
4

6. Bluemix embraces Cloud Foundry as an open source Platform as a
Service and extends it with IBM, third party, and community built runtime
and services.
How does Bluemix work?
5

7. The plain way to use a service in Bluemix
Step 1: Create & Bind the service
• Command line
– cf marketplace to see available services
– cf create-service to create a service instance
– cf bind-service to bind the service instance to your application
– cf restart, or cf restage/push again
• Web console (see demo)
– View service endpoint and credentials from VCAP_SERVICES environment variable:
6

8. The plain way to use a service in Bluemix (cont’)
Step 3: Read the credentials & invoke its API
Step 2: Provide the driver jar in your application
Drawbacks:
• Verbose code
• No connection pooling
7

9. There is an easier way to use these services
Modern
“resource”
Operational
services
Java EE
standard
“resource”
8

10. The Java EE way – Sample code for using SQLDB
9
public class TestServlet extends HttpServlet
{
@Resource (name = "jdbc/mydb")
private DataSource db;
...
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// Alternatively, use InitialContext lookup
DataSource lookup = (DataSource) new InitialContext().lookup("jdbc/mydb");
...
}
“mydb” is the name of the service
instance you create in Bluemix
That’s it! All familiar code, no changes required in order to
make it work in cloud!
• No need for a server.xml. Appropriate stanzas automatically generated.
• Don’t need to read VCAP_SERVICES
• Don’t need to provide a driver

11. Using the MQLite service – your familiar way again!
Develop responsive, scalable applications with a fully
managed messaging provider in the cloud. Quickly integrate
with application frameworks through easy to use APIs.
10
public class TestServlet extends HttpServlet
{
@Resource (name = "jms/emq")
private ConnectionFactory cf;
...
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// Alternatively, use InitialContext lookup
ConnectionFactory lookup =
(ConnectionFactory) new InitialContext().lookup(“jms/myemq");
...
}

12. More “resource” services accessible in the same way
11
MongoDB is an open source document database.
Improve the performance & user experience of web applications
by retrieving information from fast, managed, in-memory
caches, instead of relying entirely on slower disk-based
databases.
Cloudant NoSQL DB provides access to a fully managed
NoSQL JSON data layer that's always on. This service is
compatible with CouchDB, and accessible through a simple to
use HTTP interface for mobile and web application models.
11

13. Cloudant
public class TestServlet extends HttpServlet
{
@Resource (name = “cloudant/mycloudantdb")
private CouchDbInstasnce db;
...
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// Alternatively, use InitialContext lookup
CouchDbInstance db = (CouchDbInstance) new
InitialContext().lookup("cloudant/mycloudantdb");
CouchDbConnector dbc = _db.createConnector(DATABASE, true);
CouchDocument dbentry = new CouchDocument();
dbentry.setContent("testEntry");
dbc.create(dbentry);
}
“mycloudantdb” is the name of the
service instance you create in Bluemix
12

14. DataCache
public class TestServlet extends HttpServlet
{
@Resource (name = “wxs/myGrid")
private ObjectGrid og;
...
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// Alternatively, use InitialContext lookup
ObjectGrid og = (ObjectGrid) new
InitialContext().lookup(“wxs/myGrid");
...
}
“myGrid” is the name of the service
instance you create in Bluemix
13

15. MongoDB
import com.mongodb.DB;
public class TestServlet extends HttpServlet
{
@Resource (name = “cloudant/mymongo")
private DB db;
...
protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
// Alternatively, use InitialContext lookup
db = (DB) InitialContext().lookup("cloudant/mymongo");
...
}
“mymongo” is the name of the service
instance you create in Bluemix
14

16. Using operational services
15

17. Session Cache
• Improve application resiliency by storing session state information
across many HTTP requests.
• Enable persistence HTTP sessions for your application & seamless
session recovery in event of an application failure.
16

18. Auto-scaling
• The Auto-Scaling for Bluemix service enables you to automatically
increase or decrease the compute capacity of your application. The
number of application instances are adjusted dynamically based on
the Auto-Scaling policy you define.
17
Metric name Description
Supported
application type
CPU
The utilization percentage of
the CPU.
All
Memory
The usage percentage of
the memory.
All
JVM heap
The usage percentage of
the JVM heap memory.
Liberty for Java
Throughput
The number of the
processed requests per
second.
Liberty for Java

19. Monitoring & Analytics
• Gain the visibility and control you need over your application.
• Determine the response time your users see, understand the
performance and availability of the application components, and
leverage analytics to keep your application up and performing well.
18

20. Single Sign On
• Implement user authentication for your web and mobile apps quickly,
using simple policy-based configurations.
• Secure apps with confidence, not a lot of coding
• You choose the identity sources and we do the rest
19

21. New Relic
• New Relic is the all-in-one web app performance tool that lets you
see performance from the end user experience, through servers, and
down to the line of code.
20

22. Behind the scene –
Auto-Configuration Service plugin framework
• Allow service providers to customize runtime configuration
during application staging, triggered by the presence of a
service binding
• Available in both IBM Liberty & Node.js buildpacks
21

23. Users can also turn off Auto-Configuration and get the control
Disable individual services’ auto-configuration using the
services_autoconfig_excludes environment variable
Use a server package or server folder to take full control of the
server configuration
 Connection info in runtime-vars.xml as variables
 Provide a server.xml that reads these variables
 Push a server package or folder
22

24. Server configuration variables
Variables available via runtime-vars.xml (generated on cloud)
server.xml (you provide)
23

25. server.xml
...
<dataSource id="db2-mydb" jdbcDriverRef="db2-driver"
jndiName="jdbc/mydb" statementCacheSize="30"
transactional="true">
<properties.db2.jcc id="db2-mydb-props"
databaseName="${cloud.services.mydb.connection.db}"
user="${cloud.services.mydb.connection.username}"
password="${cloud.services.mydb.connection.password}"
portNumber="${cloud.services.mydb.connection.port}"
serverName="${cloud.services.mydb.connection.host}"/>
</dataSource>
...
Import javax.sql.DataSource;
public class MyServlet extends HTTPServlet
{
@Resource(name=“jdbc/somedb”)
private DataSource myDataSource;
… or ….
InitialContext ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup(“jdbc/somedb”);
}
1
2
3
• Allows the developer to use a JNDI
name different from the one defined
in server.xml
• Works only if there is a single service
instance defined in server.xml.
Any/all bindings will be auto-wired to
it.
Java EE Resource Auto-wiring for some IBM created
Bluemix services
24

26. 25
Security
Services
Web and
application
services
Cloud
Integration
Services
Mobile
Services
Database
services
Big Data
services
Internet of
Things
Services
Watson
Services
DevOps
Services
Summary
• Use the rich set of Bluemix
services as building blocks
to quickly stand up your
applications
• Stick to the “standard” way
to access these “resource”
services, transparent to the
location
• Consume operational
services with just “one
click”

27. Notices and Disclaimers
Copyright © 2015 by International Business Machines Corporation (IBM). No part of this document may be reproduced or
transmitted in any form without written permission from IBM.
U.S. Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with
IBM.
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reviewed for accuracy as of the date of initial publication and could include unintentional technical or typographical errors. IBM
shall have no responsibility to update this information. THIS DOCUMENT IS DISTRIBUTED "AS IS" WITHOUT ANY WARRANTY,
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Any statements regarding IBM's future direction, intent or product plans are subject to change or withdrawal without
notice.
Performance data contained herein was generally obtained in a controlled, isolated environments. Customer examples are
presented as illustrations of how those customers have used IBM products and the results they may have achieved. Actual
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28. Notices and Disclaimers (con’t)
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