WIP draft endpoint extraction

dev/com.ibm.ws.transport.http/src/com/ibm/ws/http/internal/HttpChain.java

@@ -41,56 +41,15 @@
 import com.ibm.wsspi.kernel.service.utils.MetatypeUtils;
 import com.ibm.wsspi.kernel.service.utils.OnErrorUtil.OnError;
 
+import io.openliberty.http.ext.BaseChain;
+
 /**
  * Encapsulation of steps for starting/stopping an http chain in a controlled/predictable
  * manner with a minimum of synchronization.
  */
-public class HttpChain implements ChainEventListener {
+public class HttpChain extends BaseChain {
     private static final TraceComponent tc = Tr.register(HttpChain.class);
 
-    public enum ChainState {
-        UNINITIALIZED(0, "UNINITIALIZED"),
-        DESTROYED(1, "DESTROYED"),
-        INITIALIZED(2, "INITIALIZED"),
-        STOPPED(3, "STOPPED"),
-        QUIESCED(4, "QUIESCED"),
-        STARTED(5, "STARTED"),
-        STARTING(6, "STARTING"),
-        STOPPING(7, "STOPPING");
-
-        public final int val;
-        final String name;
-
-        @Trivial
-        ChainState(int val, String name) {
-            this.val = val;
-            this.name = "name";
-        }
-
-        @Trivial
-        public static final String printState(int state) {
-            switch (state) {
-                case 0:
-                    return "UNINITIALIZED";
-                case 1:
-                    return "DESTROYED";
-                case 2:
-                    return "INITIALIZED";
-                case 3:
-                    return "STOPPED";
-                case 4:
-                    return "QUIESCED";
-                case 5:
-                    return "STARTED";
-                case  6:
-                    return "STARTING";
-                case  7:
-                    return "STOPPING";
-            }
-            return "UNKNOWN";
-        }
-    }
-
     protected final StopWait stopWait = new StopWait();
     protected final HttpEndpointImpl owner;
     protected final boolean isHttps;