...
The base Server class is refactored to use a Spring application context to resolve Module references. Bean definitions for Modules are built up programmatically based on the existing, reflection-based Module instantiation and parsed fcfg data. The Server is auto-wired into the modules. Module configurations and Datastore configurations are loaded as beans as well, with the former named as role + "Configuration", and the latter named with the datastore id. This allows existing code that does not need access to Spring beans to run unchanged.
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protected static GenericBeanDefinition createModuleBeanDefinition(String className, Object params, String role){
GenericBeanDefinition result = new GenericBeanDefinition();
result.setScope(BeanDefinition.SCOPE_SINGLETON);
result.setBeanClassName(className);
result.setAttribute("id", role);
result.setAttribute("name", role);
result.setAttribute("init-method", "initModule");
result.setAttribute("destroy-method", "shutdownModule");
result.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_CONSTRUCTOR);
ConstructorArgumentValues cArgs = new ConstructorArgumentValues();
cArgs.addIndexedArgumentValue(0, params,MODULE_CONSTRUCTOR_PARAM1_CLASS);
// the server constructor arg (index 1) is autowired with the Server bean in context
cArgs.addIndexedArgumentValue(2, role,MODULE_CONSTRUCTOR_PARAM3_CLASS);
result.setConstructorArgumentValues(cArgs);
return result;
}
protected static GenericBeanDefinition createModuleConfigurationBeanDefinition(String role){
GenericBeanDefinition result = new GenericBeanDefinition();
result.setScope(BeanDefinition.SCOPE_SINGLETON);
result.setBeanClassName(ModuleConfiguration.class.getName());
String name = role+"Configuration";
result.setAttribute("id", name);
result.setAttribute("name", name);
result.setFactoryBeanName(ServerConfiguration.class.getName());
result.setFactoryMethodName("getModuleConfiguration");
ConstructorArgumentValues cArgs = new ConstructorArgumentValues();
cArgs.addGenericArgumentValue(role);
result.setConstructorArgumentValues(cArgs);
return result;
}
protected static GenericBeanDefinition createDatastoreConfigurationBeanDefinition(String id){
GenericBeanDefinition result = new GenericBeanDefinition();
result.setScope(BeanDefinition.SCOPE_SINGLETON);
result.setBeanClassName(DatastoreConfiguration.class.getName());
result.setAttribute("id", id);
result.setAttribute("name", id);
result.setFactoryBeanName(ServerConfiguration.class.getName());
result.setFactoryMethodName("getDatastoreConfiguration");
ConstructorArgumentValues cArgs = new ConstructorArgumentValues();
cArgs.addGenericArgumentValue(id);
result.setConstructorArgumentValues(cArgs);
return result;
}
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...
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@Resource(name = "org.trippi.TriplestoreConnector")
public void setTriplestoreConnector(TriplestoreConnector conn){
m_conn = conn;
}
@Resource(name = configName)
public void setModuleConfiguration(ModuleConfiguration riConfig) {
m_riConfig = riConfig;
}
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... Or they can be Spring-aware, and get Beans directly:
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private static Rebuilder getRebuilder() throws Exception {private static Rebuilder getRebuilder() throws Exception {
Server server = getServer();
String [] rebuilders = server.getBeanNamesForType(Rebuilder.class);
String[] labels = new String[rebuilders.length + 1];
int i = 0;
for (i = 0; i < rebuilders.length; i++) {
Rebuilder r =
server.getBean(rebuilders[i],Rebuilder.class);
labels[i] = r.getAction();
}
labels[i] = "Exit";
int choiceNum = getChoice("What do you want to do?", labels);
if (choiceNum == i) {
return null;
} else {
return server.getBean(rebuilders[choiceNum],Rebuilder.class);
}
}
Server server = getServer();
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