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package com.sun.enterprise.admin.wsmgmt.repository.spi;
import com.sun.enterprise.admin.wsmgmt.repository.impl.*;
/**
* This SPI mechanism allows RepositoryProvider instance. This repority provider
* can be queried for existence of web services.
* <br>
* Because the methods in the RepositoryFactory are all static, there is only
* one RepositoryFactory per Java VM at any one time. This ensures that there is
* a single source from which RepositoryProvider implementation is obtained.
* <br>
* Registering RepositoryProvider
* <br>
* The name of the provider is supplied on the command line. If no provider is
* specified, default implementation is assumed. Default provider class is
* com.sun.enterprise.admin.repository.impl.ApplicationServerRepositoryProvider.
* For example the following
* -Drepository.provider.classname=com.sun.web.WebServerRepositoryProvider
* would change the provider class to com.sun.web.WebServerRepositoryProvider.
*/
public class RepositoryFactory {
/**
* Make RepositoryFactory private, only one sigleton object is available.
*/
private RepositoryFactory () {
}
/**
* Returns the RepositoryFactory singleton.
*
* @return the RepositoryFactory instance
*/
public static RepositoryFactory getRepositoryFactory() {
return new RepositoryFactory();
}
/**
* Returns the RepositoryProvider instance. If
* -Drepository.provider.classname is defined, that class is loaded and
* returned as the repository provider. If there is an error finding or
* loading the class, the default provider class is returned.
*
* @return RepositoryProvider implementation
* @throws IllegalAccessException - if the class or its nullary constructor
* is not accessible.
* InstantiationException - if this Class represents an abstract
* class,an interface, an array class, a
* primitive type, or void; or if the class * has no nullary constructor; or if the
* instantiation fails for some other
* reason.
* ClassCastException - if the provider implementation specified
* by -D does not implement the com.sun.
* enterprise.admin.wsmgmt.repository.spi.
* RepositoryProvider interface.
* ClassNotFoundException - if the provider implementation specified * by -D does could not be found by the
* class loader.
*/
public static RepositoryProvider getRepositoryProvider()
throws InstantiationException, IllegalAccessException, ClassCastException,
ClassNotFoundException {
String implName = System.getProperty(REPOSITORY_PROVIDER_NAME);
if ( implName == null ) {
return new AppServRepositoryProvider();
} else {
Class repClass = Class.forName(implName);
Object o = repClass.newInstance();
return (RepositoryProvider)o;
}
}
/**
* Returns the WebServiceInfoProvider instance. If
* -Dwebserviceinfo.provider.classname is defined, that class is loaded and
* returned as the repository provider. If there is an error finding or
* loading the class, the default provider class is returned.
*
* @return WebServiceInfoProvider implementation
* @throws IllegalAccessException - if the class or its nullary constructor
* is not accessible.
* InstantiationException - if this Class represents an abstract
* class,an interface, an array class, a
* primitive type, or void; or if the class * has no nullary constructor; or if the
* instantiation fails for some other
* reason.
* ClassCastException - if the provider implementation specified
* by -D does not implement the com.sun.
* enterprise.admin.wsmgmt.repository.spi.
* RepositoryProvider interface.
* ClassNotFoundException - if the provider implementation specified * by -D does could not be found by the
* class loader.
*/
public static WebServiceInfoProvider getWebServiceInfoProvider()
throws InstantiationException, IllegalAccessException, ClassCastException,
ClassNotFoundException {
String implName = System.getProperty(WEBSERVICE_INFO_PROVIDER_NAME);
if ( implName == null ) {
//return new AppServWebServiceInfoProvider();
Class repClass = Class.forName(AS_DEFAULT_PROVIDER);
return (WebServiceInfoProvider) repClass.newInstance();
} else {
Class repClass = Class.forName(implName);
return (WebServiceInfoProvider) repClass.newInstance();
}
}
/** Environment property name to customize Repository Provider */
public static final String REPOSITORY_PROVIDER_NAME =
"repository.provider.classname";
/** Environment property name to customize Web Service Info Provider */
public static final String WEBSERVICE_INFO_PROVIDER_NAME =
"webservice_info.provider.classname";
private static final String AS_DEFAULT_PROVIDER =
"com.sun.enterprise.tools.common.AppServWebServiceInfoProvider";
}
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