Introducing Spring Framework

More documents

Recommendations

Info

Chapter 11 Integrating Your Spring Application with External Systems In this chapter, you are going to learn how to integrate your Spring application, My Documents, with external or existing systems. Let’s imagine for a moment that you have two friends. The first friend wants to send you some document information: the same Document class model that you have in XML format. But this friend only knows JMS (Java Message Service). The second friend wants to only receive document information in XML format as well, but this friend only knows AMQP (Advance Message Queue Protocol). Figure 11-1 shows how you should communicate between these systems. At the end of this chapter you will know how to integrate your My Documents Spring application with external systems, either JMS or AMQP technologies. Producer Sends New Document in XML Format Consumer Consumes a Document in XML Format JMS Container Apache ActiveMQ AMQP RabbitMQ JMS Listener My Documents AMQP Producer Figure 11-1. Communication Between External Systems 145
Chapter 11 ■ Integrating Your Spring Application with External Systems Figure 11-1 shows how the My Documents application will interact with JMS. There will be a producer that only talks JMS, and it will send messages to a JMS container, in this case Apache ActiveMQ. Then My Documents, after receiving the message in a String XML format, will save it into the database; after that it will send the same message but using AMPQ to the RabbitMQ broker. You are going to create both the producer and consumer for the JMS and a producer and consumer for the AMQP. Java Message Service Let’s start by setting My Documents up to receive XML messages from a JMS service. But wait, what is this JMS thing? The Java Message Service API was developed by the Java community (JSR 914) as an effort to connect different and distributed clients (MOM—message-oriented middleware) in an asynchronous way and loosely couple. The clients can send and receive messages in a point-to-point (queues) or a publish-subscribe (topics) way. To emulate your friend that only talks to JMS, you are going to install Apache ActiveMQ. This is a JMS container. You can download it from http://activemq.apache.org/. (For more information about how to install ApacheMQ, see Appendix A.) Listing 11-1 shows the XML that you are going to use to send document information to your Spring application. The XML contains some documentIds, a name, location, description, the date created and modified, and the type with its attributes. Listing 11-1. XML Document Info (META-INF/data/jms.txt) df569fa4-a513-4252-9810-818cade184ca Apress Books 4980d2e4-a424-4ff4-a0b2-476039682f43 WEB Web Link .url http://www.apress.com Apress Books 2014-03-11 03:02:18.490 UTC 2014-03-11 03:02:18.490 UTC Next, start the Apache ActiveMQ, go to the main page (http://localhost:8161/hawtio), and create a queue (destination) with the name of mydocumentsQueue. On the Hawtio web page, go to the left side and select the localhost node. Some tabs will appear; select the + Create tab. It will display a Create Queue dialog. Set the name and choose the Queue option, then click the Create Queue button. See Figure 11-2. 146
Page 1 and 2:
THE EXPERT’S VOICE ® IN SPRING
Page 3 and 4:
Contents at a Glance About the Auth
Page 5 and 6:
Introduction This book is an introd
Page 7 and 8:
Part I Spring Framework Basics The
Page 9 and 10:
Chapter 1 ■ Your First Spring App
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Chapter 2 ■ Working with Classes
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Chapter 3 Applying Different Config
Page 31 and 32:
Chapter 3 ■ Applying Different Co
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Spring Stereotypes Chapter 3 ■ Ap
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Chapter 4 ■ Using Beans Scopes pu
Page 51 and 52:
Chapter 4 ■ Using Beans Scopes Th
Page 53 and 54:
Chapter 4 ■ Using Beans Scopes @A
Page 55 and 56:
Chapter 4 ■ Using Beans Scopes do
Page 57 and 58:
Chapter 5 ■ Working with Collecti
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Chapter 6 ■ Using Resource Files
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Chapter 7 Testing Your Spring Appli
Page 79 and 80:
Chapter 7 ■ Testing Your Spring A
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Chapter 8 Give Advice to Your Sprin
Page 91 and 92:
Chapter 8 ■ Give Advice to Your S
Page 93 and 94: Chapter 8 ■ Give Advice to Your S
Page 111 and 112: Chapter 9 ■ Adding Persistence to
Page 133 and 134: Chapter 10 ■ Showing Your Spring
Page 143: Chapter 10 ■ Showing Your Spring
Page 147 and 148: Chapter 11 ■ Integrating Your Spr
Page 167 and 168: Chapter 12 Exposing a REST API Nowa
Page 169 and 170: Chapter 12 ■ Exposing a REST API
Page 179 and 180: HTTP-DELETE Chapter 12 ■ Exposing
Page 181 and 182: Chapter 13 Adding E-mail and Schedu
Page 183 and 184: Chapter 13 ■ Adding E-mail and Sc
Page 191 and 192: Part III Spring Framework Advanced
Page 193 and 194: Chapter 14 ■ Using Dynamic Langua
Page 195 and 196:
Chapter 14 ■ Using Dynamic Langua
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Chapter 15 ■ Spring Data Within Y
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Chapter 16 ■ Messaging with Your
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Chapter 17 Be Social and Go Mobile
Page 229 and 230:
Chapter 17 ■ Be Social and Go Mob
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Part IV Spring I/O Spring I/O is no
Page 249 and 250:
Chapter 18 ■ Spring and Groovy
Page 251 and 252:
Chapter 18 ■ Spring and Groovy Li
Page 253 and 254:
Chapter 18 ■ Spring and Groovy cl
Page 255 and 256:
Chapter 18 ■ Spring and Groovy If
Page 257 and 258:
Chapter 18 ■ Spring and Groovy Li
Page 259 and 260:
Chapter 19 ■ Spring Boot, Simplif
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Chapter 20 ■ Your First Spring XD
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
Appendix A Installing Tools In this
Page 285 and 286:
Appendix A ■ Installing Tools Fig
Page 287 and 288:
Setting Environment Variables Appen
Page 289 and 290:
Page 291 and 292:
Appendix A ■ Installing Tools 6.
Page 293 and 294:
Page 295 and 296:
Appendix A ■ Installing Tools ■
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
Stop MongoDB Server Appendix A ■
Page 307 and 308:
Stop ActiveMQ Appendix A ■ Instal
Page 309 and 310:
Installing RabbitMQ on Windows Appe
Page 311 and 312:
Page 313 and 314:
Installing Spring XD on Windows App
Page 315 and 316:
■ index • I I/O operations, 62
Page 317 and 318:
■ index Spring application (cont.
Page 319 and 320:
Introducing Spring Framework A Prim
Page 321 and 322:
To my parents, Rocio Cruz and Felip
Page 323 and 324:
■ Contents ■■Chapter 3: Apply
Page 325 and 326:
■ Contents ■■Chapter 12: Expo
Page 327 and 328:
■ Contents ■■Chapter 20: Your
Page 329 and 330:
About the Author Felipe Gutierrez i
Page 331:
Acknowledgments I would like to exp
show all

Introducing Spring Framework

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?