From 7189ff3d683f97870fc11ec4e14de3f23abe3c4b Mon Sep 17 00:00:00 2001
From: ulrich
Date: Thu, 05 Dec 2024 15:11:06 +0000
Subject: [PATCH] TempActor umbenannt zu ActorDescriptor, verschoben zu entity Package
---
src/de/uhilger/neon/Factory.java | 145 ++++++++++++++++++++++++------------------------
1 files changed, 72 insertions(+), 73 deletions(-)
diff --git a/src/de/uhilger/neon/Factory.java b/src/de/uhilger/neon/Factory.java
index 48ceb6d..7c3af07 100644
--- a/src/de/uhilger/neon/Factory.java
+++ b/src/de/uhilger/neon/Factory.java
@@ -17,13 +17,13 @@
*/
package de.uhilger.neon;
+import de.uhilger.neon.entity.ActorDescriptor;
import com.google.gson.Gson;
import com.sun.net.httpserver.Authenticator;
import com.sun.net.httpserver.Filter;
import com.sun.net.httpserver.HttpContext;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
-import de.uhilger.neon.JarScanner.JarScannerListener;
import de.uhilger.neon.entity.ContextDescriptor;
import de.uhilger.neon.entity.NeonDescriptor;
import de.uhilger.neon.entity.ServerDescriptor;
@@ -48,6 +48,8 @@
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
+import de.uhilger.neon.Scanner.ScannerListener;
+import java.util.Set;
/**
* Einen Neon-Server aus einer Beschreibungsdatei herstellen
@@ -65,10 +67,13 @@
* @author Ulrich Hilger
* @version 1, 6.2.2024
*/
-public class Factory implements JarScannerListener {
+public class Factory implements ScannerListener {
+
+ private Map<String, List<ActorDescriptor>> actorMap;
public Factory() {
listeners = new ArrayList<>();
+ actorMap = new HashMap<>();
}
/**
@@ -129,17 +134,22 @@
Logger.getLogger(Factory.class.getName()).log(Level.FINER, System.getProperty("java.class.path"));
- List serverList = d.server;
- Iterator<ServerDescriptor> serverIterator = serverList.iterator();
- while (serverIterator.hasNext()) {
- ServerDescriptor sd = serverIterator.next();
+ List<ServerDescriptor> serverList = d.server;
+ for (ServerDescriptor sd : serverList) {
HttpServer server = HttpServer.create(new InetSocketAddress(sd.port), 0);
fireServerCreated(server);
if (packageNames == null) {
packageNames = d.actorPackages;
+ }
+
+ Scanner scn = new Scanner(starter, Actor.class);
+ for (String packageName : packageNames) {
+ scn.process(this, packageName, new Object[]{});
+ // ctx.getAttributes().put("serverDataProviderList", sdp);
}
- addContexts(starter, d, server, sd.contexts, packageNames, sdp);
+
+ addContexts(d, server, sd.contexts, sdp);
server.setExecutor(Executors.newFixedThreadPool(10));
server.start();
@@ -167,11 +177,11 @@
return auth;
}
- private void addContexts(Class c, NeonDescriptor d, HttpServer server, List contextList, List<String> packageNames,
+ private void addContexts(NeonDescriptor d, HttpServer server, List<ContextDescriptor> contextList,
List<DataProvider> sdp)
throws ClassNotFoundException, NoSuchMethodException, InstantiationException,
IllegalAccessException, IllegalArgumentException, InvocationTargetException, IOException {
- Map<String, HttpHandler> sharedHandlers = new HashMap();
+ Map<String, HttpHandler> sharedHandlers = new HashMap<>();
Iterator<ContextDescriptor> contextIterator = contextList.iterator();
Authenticator auth = null;
while (contextIterator.hasNext()) {
@@ -182,16 +192,12 @@
Map<String, Object> ctxAttrs = ctx.getAttributes();
/*
Achtung: Wenn verschiedene Elemente dasselbe Attribut
- deklarieren, ueberschreiben sie sich die Attribute gegenseitig.
+ deklarieren, ueberschreiben sich die Attribute gegenseitig.
*/
ctxAttrs.putAll(cd.attributes);
- if (h instanceof Handler) {
- for (String packageName : packageNames) {
- wireActors(c,
- packageName, Actor.class, (Handler) h,
- cd.attributes.get("contextName"));
- ctx.getAttributes().put("serverDataProviderList", sdp);
- }
+ ctxAttrs.put("serverDataProviderList", sdp);
+ if (h instanceof Handler handler) {
+ wire(handler, cd.attributes.get("contextName"));
}
if (cd.authenticator instanceof String) {
if (!(auth instanceof Authenticator)) {
@@ -202,22 +208,13 @@
ctx.getAttributes().putAll(d.authenticator.attributes);
fireAuthenticatorCreated(ctx, auth); // event umbenennen in etwas wie authAdded oder so
}
-
}
-
- //Authenticator auth = createAuthenticator(d);
- //if (auth instanceof Authenticator && cd.authenticator instanceof String) {
- // ctx.setAuthenticator(auth);
- // ctx.getAttributes().putAll(d.authenticator.attributes);
- // fireAuthenticatorCreated(ctx, auth);
- //}
if (cd.filter != null) {
for (String filterClassName : cd.filter) {
//
Object filterObj = Class.forName(filterClassName)
.getDeclaredConstructor().newInstance();
- if (filterObj instanceof Filter) {
- Filter filter = (Filter) filterObj;
+ if (filterObj instanceof Filter filter) {
ctx.getFilters().add(filter);
}
}
@@ -262,36 +259,6 @@
| InvocationTargetException ex) {
// Klasse nicht gefunden. Muss das geloggt oder sonstwie behandel werden?
return null;
- }
- }
-
- @SuppressWarnings("unchecked")
- private void wireActors(Class c, String packageName, Class annotation, Handler h, String contextName) {
- JarScanner js = new JarScanner(c, annotation);
- if (!js.isJar()) {
- ClassLoader cl = c.getClassLoader();
- InputStream stream = cl
- .getResourceAsStream(packageName.replaceAll("[.]", "/"));
- BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
- Iterator i = reader.lines().iterator();
- while (i.hasNext()) {
- String line = i.next().toString();
- if (line.endsWith(".class")) {
- try {
- Class actorClass = cl.loadClass(packageName + "."
- + line.substring(0, line.lastIndexOf('.')));
- if (actorClass != null && actorClass.isAnnotationPresent(annotation)) {
- wire(h, actorClass, contextName);
- }
- } catch (ClassNotFoundException ex) {
- // Klasse nicht gefunden. Muss das geloggt oder sonstwie behandel werden?
- }
- } else {
- wireActors(c, packageName + "." + line, annotation, h, contextName);
- }
- }
- } else {
- js.processZipContent(packageName, this, h, contextName);
}
}
@@ -362,22 +329,32 @@
Kontextpfades ausgefuehrt werden soll, muss die Action
als Route '/' angeben.
*/
+
+ /*
+ Tradeoff:
+ Es muss bei Initialisierung die Actor-Klasse ganz durchlaufen werden, um alle Methoden
+ zu finden, die eine Action-Annotation haben. Der Handler 'merkt' sich lediglich den Namen der
+ Actor-Klassen. Daher muessen bei jedem Aufruf eines Actors ueber den Handler abermals
+ alle Methoden dieses Actors durchsucht werden, um diejenige Methode zu finden, die mit
+ der zur Route des Requests passenden Action annotiert ist.
+
+ Dieser Tradeoff bewirkt, dass nicht grosse Geflechte aus Klassen- und Methodenobjekten
+ fuer die gesamten Actors einer Anwendung im Speicher gehalten werden muessen
+ sondern dynamisch zur Laufzeit instanziiert werden.
+ */
+
/**
- *
+ * Actor-Klassen dem Handler hinzufuegen
+ *
* @param h Handler, dem der Actor hinzugefuegt wird, falls der Kontext uebereinstimmt
- * @param c hinzuzufuegende Actor-Klasse
- * @param contextName Name des Kontext, dem der Actor hinzugefuegt wird
+ * @param contextName Name des Kontext, dem der Handler zugeordnet ist
*/
- private void wire(Handler h, Class c, String contextName) {
- Method[] methods = c.getMethods();
- for (Method method : methods) {
- Action action = method.getAnnotation(Action.class);
- if (action != null) {
- List actionHandlers = Arrays.asList(action.handler());
- if (actionHandlers.contains(contextName)) {
- h.setActor(action.type(), action.route(), c.getName());
- }
- }
+ private void wire(Handler h, String contextName) {
+ List<ActorDescriptor> actorList = actorMap.get(contextName);
+ Iterator<ActorDescriptor> i = actorList.iterator();
+ while(i.hasNext()) {
+ ActorDescriptor actor = i.next();
+ h.setActor(actor.getHttpMethod(), actor.getRoute(), actor.getActorClassName());
}
}
@@ -395,6 +372,8 @@
public void destroy() {
this.listeners.clear();
this.listeners = null;
+ this.actorMap.clear();
+ this.actorMap = null;
}
private void fireServerCreated(HttpServer server) {
@@ -427,9 +406,29 @@
}
}
- /* -------------- JarScannerListener Implementierung --------------- */
+ /* -------------- ScannerListener Implementierung --------------- */
@Override
- public void annotationFound(Class foundClass, Handler h, String contextName) {
- wire(h, foundClass, contextName);
+ public void annotationFound(Class foundClass, Object[] params) {
+ Method[] methods = foundClass.getMethods();
+ for (Method method : methods) {
+ Action action = method.getAnnotation(Action.class);
+ if (action != null) {
+ List<String> actionHandlers = Arrays.asList(action.handler());
+ for (String contextName : actionHandlers) {
+ ActorDescriptor tempActor = new ActorDescriptor();
+ tempActor.setContextName(contextName);
+ tempActor.setHttpMethod(action.type());
+ tempActor.setRoute(action.route());
+ tempActor.setActorClassName(foundClass.getName());
+
+ List<ActorDescriptor> actorList = actorMap.get(contextName);
+ if(actorList == null) {
+ actorList = new ArrayList<>();
+ }
+ actorList.add(tempActor);
+ actorMap.put(contextName, actorList);
+ }
+ }
+ }
}
}
\ No newline at end of file
--
Gitblit v1.9.3