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ImplementorCacheDelegateImpl.javaAPI DocGlassfish v2 API6615Fri May 04 22:36:10 BST 2007com.sun.enterprise.webservice

ImplementorCacheDelegateImpl

public class ImplementorCacheDelegateImpl extends com.sun.xml.rpc.spi.runtime.ImplementorCacheDelegate
This class extends the behavior of ImplementorCache in order to interpose on lifecycle events for the creation and destruction of ties/servants for servlet web service endpoints.
author
Kenneth Saks

Fields Summary
private Hashtable
implementorCache_
private ServletContext
servletContext_
private com.sun.xml.rpc.spi.JaxRpcObjectFactory
rpcFactory_
Constructors Summary
public ImplementorCacheDelegateImpl(ServletConfig servletConfig)

        servletContext_ = servletConfig.getServletContext();
        implementorCache_ = new Hashtable();
        rpcFactory_ = JaxRpcObjectFactory.newInstance();
    
Methods Summary
private com.sun.xml.rpc.spi.runtime.ImplementorcreateImplementor(com.sun.xml.rpc.spi.runtime.RuntimeEndpointInfo targetEndpoint)


        Tie tie = (Tie) targetEndpoint.getTieClass().newInstance();

        Class seiClass  = targetEndpoint.getRemoteInterface();
        Class implClass = targetEndpoint.getImplementationClass();

        Remote servant  = null;
        if( seiClass.isAssignableFrom(implClass) ) {
            // if servlet endpoint impl is a subtype of SEI, use an
            // instance as the servant.
            servant = (Remote) implClass.newInstance();
        } else {
            // Create a dynamic proxy that implements SEI (and optionally
            // ServiceLifecycle) and delegates to an instance of the 
            // endpoint impl.
            Object implInstance = implClass.newInstance();

            InvocationHandler handler = 
                new ServletImplInvocationHandler(implInstance);
            boolean implementsLifecycle = 
                ServiceLifecycle.class.isAssignableFrom(implClass);
            Class[] proxyInterfaces = implementsLifecycle ?
                new Class[] { seiClass, ServiceLifecycle.class } :
                new Class[] { seiClass };

            servant = (Remote) Proxy.newProxyInstance
                (implClass.getClassLoader(), proxyInterfaces, handler);
        }
        tie.setTarget(servant);
        
        Implementor implementor = rpcFactory_.createImplementor(servletContext_, tie);
        implementor.init();

        return implementor;
    
public voiddestroy()

        for (Iterator iter = implementorCache_.values().iterator(); 
             iter.hasNext();) {
            Implementor implementor = (Implementor) iter.next();
            try {
                implementor.destroy();
            } catch(Throwable t) {
                // @@@ log
            }
        }
        implementorCache_.clear();
    
public com.sun.xml.rpc.spi.runtime.ImplementorgetImplementorFor(com.sun.xml.rpc.spi.runtime.RuntimeEndpointInfo targetEndpoint)


        Implementor implementor = null;
        try {
            synchronized(targetEndpoint) {
                implementor = (Implementor) 
                    implementorCache_.get(targetEndpoint);
                if( implementor == null ) {
                    implementor = createImplementor(targetEndpoint);
                    implementorCache_.put(targetEndpoint, implementor);
                }
            }

            InvocationManager invManager =
                Switch.getSwitch().getInvocationManager();
            ComponentInvocation inv = invManager.getCurrentInvocation();
            inv.setWebServiceTie(implementor.getTie());

        } catch(Throwable t) {
/* XXX FIXME
            JAXRPCServletException jse = new JAXRPCServletException
                ("error.implementorFactory.newInstanceFailed", 
                 targetEndpoint.getName());
            jse.initCause(t);
            throw jse;
*/
            RuntimeException re = new RuntimeException();
            re.initCause(t);
            throw re;
        }

        return implementor;
    
public voidreleaseImplementor(com.sun.xml.rpc.spi.runtime.RuntimeEndpointInfo targetEndpoint, com.sun.xml.rpc.spi.runtime.Implementor implementor)

        // do nothing