ApplicationContext Configuration
Abdera comes with Spring 2 configuration support and several classes to make building Spring based applications easier. Most server applications should be able to built by writing a Provider and a small bit of Spring XML.
The first step then is to write a CollectionAdapter. This is the place where your application specific logic goes for creating, editing or deleting resources. Please see the Server Implementation Guide for more information.
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package org.example;
import org.apache.abdera.server.CollectionAdapter;
public class FooCollectionAdapter implements CollectionAdapter {
...
}
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And add it to your beans.xml:
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<bean id="employeeCollectionAdapter" class="org.example.EmployeeCollectionAdapter">
<property name="href" value="employees"/>
</bean>
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Now you'll need to configure the Abdera Provider. The Provider hosts all the workspaces and collections inside Abdera.
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<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:a="http://abdera.apache.org"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://abdera.apache.org http://abdera.apache.org/schemas/abdera-spring.xsd">
<!-- Abdera -->
<a:provider id="provider">
<a:workspace title="My Atom Workspace">
<ref bean="fooCollectionAdapter"/>
</a:workspace>
</a:provider>
</beans>
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Servlet Configuration
You'll probably also want set up the AbderaServlet so it can pull the ServiceContext from your ApplicationContext. Here is an example web.xml configuration:
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:your-applicationContext.xml
</param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet id="abdera">
<servlet-name>Abdera</servlet-name>
<servlet-class>org.apache.abdera.spring.SpringAbderaServlet</servlet-class>
</servlet>
<servlet-mapping id="abdera-mapping">
<servlet-name>Abdera</servlet-name>
<url-pattern>/atom/*</url-pattern>
</servlet-mapping>
</web-app>
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