| Store Tutorial |
| ============== |
| |
| This tutorial that shows how to use SCA and Tuscany to build multiple |
| variations of an online Store application. The variations demostrate the |
| evolution of the Store as it goes through the following stages: |
| |
| 1 - Initial online fruit store |
| 2 - Fruit store merges with vegetable store to form the fruit and vegetable store |
| 3 - The fruit and vegetable store move to using a database for storing the cart |
| 4 - The fruit and vegetable store acts as a supplier to other online stores |
| 5 - The fruit and vegetable store ships their software solution to another geography |
| 6 - The fruit and vegetable running in the enterprise |
| |
| For diagrams of the scenarios covered here, please refer to Tutorial.pdf |
| |
| Running The Tutorial Application |
| -------------------------------- |
| |
| Start the SCA Domain Manager on linux: |
| |
| cd domain |
| java -jar ../../../modules/tuscany-node-launcher-1.5.1.jar domain |
| |
| Start the SCA Domain Manager on windows: |
| |
| cd domain |
| java -jar ..\..\..\modules\tuscany-node-launcher-1.5.1.jar domain |
| |
| Access the SCA Domain Manager application by pointing your Web browser at: |
| |
| http://localhost:9990/ui/cloud/ |
| |
| This shows you all of the Tuscany nodes that are configured to run |
| in the store tutorial domain. If you are interested, the configuration |
| is stored on disc in the store/domain directory but for now let's just |
| start some nodes and see what happens. |
| |
| The different nodes you see are used to start different scenarios in |
| the tutorial. Select the node you want to start (e.g StoreNode), then click the |
| Start button. You may need to give the nodes a little time to start up. Check the |
| console where you lauched the domain manager application and you will see the |
| following message when nodes have started. |
| |
| INFO: INFO: Press 'q' to quit, 'r' to restart. |
| |
| Remember to shut down the nodes before you exit the domain manager application. |
| |
| The following describes the nodes you have to start for each scenario and some |
| usful links to explore once the node has started. |
| |
| 1 - Initial online fruit store |
| ---------------------------- |
| |
| Start |
| |
| StoreNode |
| |
| The store itself can be found at |
| |
| http://localhost:8100/ui/ |
| |
| If you want to look at how Tuscany provides remote bindings you can take |
| a look at the service description that Tuscany created automatically |
| for the store catalog service which is exposed over a JSONRPC binding |
| Point your browser at: |
| |
| http://l3localhost:8100/StoreCatalog?smd |
| |
| The service is configured in the SCA composite file in the following way: |
| |
| <component name="StoreCatalog"> |
| <implementation.java class="services.FruitsCatalogImpl"/> |
| <property name="currencyCode">USD</property> |
| <service name="Catalog"> |
| <t:binding.jsonrpc/> |
| </service> |
| <reference name="currencyConverter" target="StoreCurrencyConverter"/> |
| </component> |
| |
| Note the inclusion of <t:binding.jsonrpc/>. This is all that is required to |
| make this service available over JSONRPC. If you want to expose the service |
| over web services simply add <binding.ws/> instead of (or as well as) <t:binding.jsonrpc/>. |
| |
| 2 - Fruit store merges with vegetable store to form the fruit and vegetable store |
| --------------------------------------------------------------------------------- |
| |
| Start |
| |
| CatalogsNode |
| StoreMergerNode |
| |
| The store itself can be found at |
| |
| http://localhost:8101/ui/ |
| |
| Now you see that there are more items in the catalog as the fruit and |
| vegetable catalogs are both providing content. The vegetable catalog |
| that was introduced during the merger is contacted using web services. |
| If you want to see the WSDL for the vegetable catalog point your browser |
| at |
| |
| http://l3aw203:8200/VegetablesCatalogWebService?wsdl |
| |
| The vegetable catalog service is configured in an SCA composite file |
| in the following way: |
| |
| <component name="VegetablesCatalogWebService"> |
| <implementation.java class="services.VegetablesCatalogImpl"/> |
| <service name="Catalog"> |
| <binding.ws/> |
| </service> |
| </component> |
| |
| 3 - The fruit and vegetable store move to using a database to storing the cart |
| ------------------------------------------------------------------------------ |
| |
| Start |
| |
| StoreDBNode |
| |
| The store itself can be found at |
| |
| http://l3aw203:8102/ui/ |
| |
| This looks the same as the scenario 2 store but this time a database is used |
| for storing items put into the shopping cart. When you add items you |
| will see messages on the console indicating that items are added to the |
| database. For example. |
| |
| INFO: insert into Cart values ('cart-8c8bcc43-5036-4e9a-b282-0dd3d00d350c', 'Apple', '$2.99') |
| |
| This scenario shows how you change the implementation of a service without |
| changing any of the configuration of the rest of the application |
| |
| 4 - The fruit and vegetable store acts as a supplier to other online stores |
| --------------------------------------------------------------------------- |
| |
| Start |
| |
| StoreSupplierNode |
| |
| The store itself can be found at |
| |
| http://localhost:8103/ui/ |
| |
| Again this is the same basic store as in scenario 3. However this time the |
| shopping cart and catalog serivces have been given additional remote bindings so that |
| the services can be accessed by others. For example, take a look at the WSDL |
| description of the shopping cart service that is now available at: |
| |
| http://l3aw203:8333/ShoppinCartTotalWebService?wsdl |
| |
| This WSDL is available as the shopping cart total service is now configured with a web services |
| binding in the following way: |
| |
| <component name="StoreSupplierShoppingCart"> |
| <implementation.java class="services.db.ShoppingCartTableImpl"/> |
| <property name="database">../store-supplier/target/cart-db</property> |
| <service name="Cart"> |
| <t:binding.atom uri="/ShoppingCart/Cart"/> |
| </service> |
| <service name="Total"> |
| <t:binding.jsonrpc/> |
| <binding.ws uri="/ShoppinCartTotalWebService"/> |
| </service> |
| </component> |
| |
| If you want to actually exercise these services from a standalone application |
| you can run up the StoreClientNode using the provided launcher |
| |
| store/store-client/launch/LaunchStoreClientNode |
| |
| |
| 5 - The fruit and vegetable store ships their software solution to another geography |
| ------------------------------------------------------------------------------------ |
| |
| Start |
| |
| CurrencyNode |
| StoreEUNode |
| |
| The store itself can be found at |
| |
| http://localhost:8104/ui/ |
| |
| Notice now that the prices are quoted in Euros and the language is French. This was |
| achieved by editing the store.html file to change the language and presentation to |
| be appropriate for Europe. The curreny was changed by reconfiguring the catalog |
| component to use EUR instead of USD. |
| |
| <component name="StoreEUCatalog"> |
| <implementation.java class="services.merger.MergedCatalogImpl"/> |
| <property name="currencyCode">EUR</property> |
| ... |
| </component> |
| |
| 6 - The fruit and vegetable running in the enterprise |
| --------------------------------------------------------------------------------- |
| |
| Start |
| |
| CatalogsNode |
| StoreEnterpriseNode |
| |
| Separately run |
| LaunchWarehouseSpring from the command line |
| TBD |
| |
| The LaunchWarehouseSpring program starts the node for the warehouse based on local |
| configuration. It doesn't use the domain manager like the other nodes we start do. |
| It also start and ActiveMQ broker via which JMS messages will pass. |
| |
| The store itself can be found at |
| |
| http://localhost:8108/ui/ |
| |
| The items in the catalog as much the same as the previous examples. |
| This time though when you place the order a message is sent over JMS to |
| the warehouse component running outside the domain and listening on JMS. |
| In this case we have implemented the warehouse application using SCA and it |
| has it's own UI. The UI can be found at |
| |
| http://l3aw203:8088/ui/ |
| |
| You should see the orders accumulating. YOu can't do anything with the |
| orders but it is just a demo. |
| |
| The warecouse component is configured in the composite file |
| in the following way: |
| |
| <component name="Warehouse"> |
| <implementation.java class="services.WarehouseImpl"/> |
| <service name="Warehouse"> |
| <t:binding.jsonrpc uri="http://localhost:8088/Warehouse"/> |
| <binding.jms initialContextFactory="org.apache.activemq.jndi.ActiveMQInitialContextFactory" |
| jndiURL="tcp://localhost:61619"> |
| <destination name="RequestQueue" create="ifnotexist"/> |
| <response> |
| <destination name="ResponseQueue" create="ifnotexist"/> |
| </response> |
| </binding.jms> |
| </service> |
| </component> |
| |
| And the shopping cart component that talks to it is configured as follows |
| |
| <component name="StoreEnterpriseShoppingCart"> |
| <implementation.java class="services.ShoppingCartImpl"/> |
| <service name="Cart"> |
| <t:binding.atom uri="/ShoppingCart/Cart"/> |
| </service> |
| <service name="Total"> |
| <t:binding.jsonrpc/> |
| </service> |
| <reference name="warehouse" multiplicity="0..1" > |
| <binding.jms initialContextFactory="org.apache.activemq.jndi.ActiveMQInitialContextFactory" |
| jndiURL="tcp://localhost:61619"> |
| <destination name="RequestQueue" create="always"/> |
| <response> |
| <destination name="ResponseQueue" create="always"/> |
| </response> |
| </binding.jms> |
| </reference> |
| </component> |
| |
| |
| For more detailed information about how to get started with Apache Tuscany |
| see our online guides at: |
| |
| http://tuscany.apache.org/sca-java-getting-started-guides-1x.html |
| |