added Form, other minor changes

[org.ibex.xt.git] / src / org / ibex / xt / Prevalence.java

diff --git a/src/org/ibex/xt/Prevalence.java b/src/org/ibex/xt/Prevalence.java
index ef87147..2bfbfb1 100644 (file)
--- a/src/org/ibex/xt/Prevalence.java
+++ b/src/org/ibex/xt/Prevalence.java
@@ -1,3 +1,7 @@
+// Copyright 2000-2005 the Contributors, as shown in the revision logs.
+// Licensed under the Apache Public Source License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
 package org.ibex.xt;
 import org.ibex.js.*;
 import org.ibex.util.*;
@@ -9,10 +13,30 @@ import javax.servlet.*;
 import javax.servlet.http.*;
 import com.thoughtworks.xstream.*;
 import org.prevayler.*;
-import org.prevayler.implementation.snapshot.*;
+import org.prevayler.implementation.snapshot.XmlSnapshotManager;
 
 public class Prevalence {
 
+    public static abstract class PrevalentServlet extends HttpServlet {
+       protected Hashtable prevalent;
+       protected Prevayler prevayler;
+       protected ServletContext cx = null;
+       public void destroy() { try {
+           synchronized(this.getClass()) {
+               Prevayler privatePrevayler = prevayler;
+               if (prevayler == null) return;
+               prevayler = null;
+               Prevalence.destroy(cx, prevayler);
+           }
+       } catch (Exception e) { e.printStackTrace(); } }
+       
+       public void init(ServletConfig sc) throws ServletException {
+           cx = sc.getServletContext();
+           prevayler = Prevalence.getPrevayler(cx);
+           prevalent = (Hashtable)prevayler.prevalentSystem();
+       }
+    }
+
     static final Hashtable prevaylers = new Hashtable();
 
     public static void destroy(ServletContext cx, Prevayler prevayler) { try {
@@ -43,20 +67,12 @@ public class Prevalence {
                 prevayler = (Prevayler)prevaylers.get(cx);
                 if (prevayler == null) {
                     PrevaylerFactory pf = new PrevaylerFactory();
-                    String base = cx.getRealPath("/") + "WEB-INF" + File.separatorChar + "prevalent";
+                    String base = cx.getRealPath("/") + File.separatorChar + "WEB-INF" + File.separatorChar + "prevalent";
                     System.err.println("prevayling to " + base);
                     pf.configurePrevalenceBase(base);
-                    XStreamSnapshotManager manager = new XStreamSnapshotManager(new JS(), base, null) {
-                            protected XStream createXStream() {
-                                XStream xstream = new XStream();
-                                xstream.alias("js", JS.class);
-                                xstream.alias("jsdate", JSDate.class);
-                                return xstream;
-                            }
-                        };
+                    XmlSnapshotManager manager = new XmlSnapshotManager(new Hashtable(), base);
                     System.err.println("configuring with " + manager);
                     pf.configureSnapshotManager(manager);
-                    //pf.configureClassLoader(JSTransaction.class.getClassLoader());
                     prevayler = pf.create();
                     prevaylers.put(cx, prevayler);
                     new SnapshotThread(cx).start();
@@ -68,10 +84,24 @@ public class Prevalence {
     public static class JSTransaction implements Transaction {
         public static final long serialVersionUid = 0xfb2aa281;
         private JS js;
-        public JSTransaction(JS js) { this.js = js; }
+        Scope newscope;
+        String[] v;
+        public JSTransaction(JS js) throws JSExn {
+            newscope = new Scope(null);
+            this.js = JSU.cloneWithNewGlobalScope(js, newscope);
+            v = this.js.getFormalArgs();
+            for(int i=0; i<v.length; i++) {
+                if (JSU.S("prevalent").equals(v[i])) continue;
+                newscope.put(JSU.S(v[i]), js.get(JSU.S(v[i])));
+            }
+        }
         public void executeOn(Object o, Date now) {
             try {
-                js.call(o, new JSDate(now.getTime()), null, null, 2);
+                newscope.put(JSU.S("prevalent"), (JS)o);
+                newscope.put(JSU.S("now"), new JSDate(now.getTime()));
+                JS[] args = new JS[v.length];
+                for(int i=0; i<v.length; i++) args[i] = JSU.S(v[i]);
+                js.call(null, args);
             } catch (Exception e) { throw new RuntimeException(e); }
         }
     }
@@ -79,10 +109,11 @@ public class Prevalence {
     public static class JSQuery implements Query {
         public static final long serialVersionUid = 0xfb2aa282;
         private JS js;
-        public JSQuery(JS js) { this.js = js; }
+        private Object a;
+        public JSQuery(JS js, Object a) { this.js = JSU.cloneWithNewGlobalScope(js, null); this.a = a; }
         public Object query(Object o, Date now) {
             try {
-                return js.call(o, new JSDate(now.getTime()), null, null, 2);
+                return js.call(null, new JS[] { (JS)o, (JS)a, new JSDate(now.getTime()) });
             } catch (Exception e) { throw new RuntimeException(e); }
         }
     }