From c7030d001eafe77660cd18d59b63bf0be9441f10 Mon Sep 17 00:00:00 2001
From: ulrich
Date: Fri, 09 Apr 2021 14:47:03 +0000
Subject: [PATCH] JavaScript Formulare weiter vereinheitlicht
---
src/de/uhilger/mediaz/api/AbstractHandler.java | 101 +++++++++++++++++++++++++++++++++++++++-----------
1 files changed, 79 insertions(+), 22 deletions(-)
diff --git a/src/de/uhilger/mediaz/api/AbstractHandler.java b/src/de/uhilger/mediaz/api/AbstractHandler.java
index 4692d5d..45befae 100644
--- a/src/de/uhilger/mediaz/api/AbstractHandler.java
+++ b/src/de/uhilger/mediaz/api/AbstractHandler.java
@@ -5,37 +5,94 @@
*/
package de.uhilger.mediaz.api;
-import com.google.gson.Gson;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.util.logging.Logger;
+
/**
*
* @author ulrich
*/
-public class AbstractHandler {
+public abstract class AbstractHandler extends JsonHelper implements HttpHandler {
- protected String jsonWithEnclosingType(Object o) {
- /*
- StringBuilder sb = new StringBuilder();
- sb.append("{\"");
- sb.append(o.getClass().getSimpleName());
- sb.append("\": ");
- Gson gson = new Gson();
- sb.append(gson.toJson(o));
- sb.append("}");
- return sb.toString();
- */
- return jsonWithCustomType(o, o.getClass().getSimpleName());
+ private static final Logger logger = Logger.getLogger(AbstractHandler.class.getName());
+
+ /** Name der HTTP Methode GET */
+ public static final String HTTP_GET = "GET";
+
+ /** Name der HTTP Methode PUT */
+ public static final String HTTP_PUT = "PUT";
+
+ /** Name der HTTP Methode POST */
+ public static final String HTTP_POST = "POST";
+
+ /** Name der HTTP Methode DELETE */
+ public static final String HTTP_DELETE = "DELETE";
+
+ @Override
+ public void handle(HttpExchange e) throws IOException {
+ String method = e.getRequestMethod();
+ String response = "";
+ int code = 200;
+ switch(method) {
+ case HTTP_GET:
+ String json = get(e);
+ if(json != null) {
+ response = json;
+ } else {
+ response = "nicht gefunden";
+ code = 404;
+ }
+ break;
+
+ case HTTP_PUT:
+ response = put(e);
+ break;
+
+ case HTTP_POST:
+ response = post(e);
+ code = 404;
+ break;
+
+ case HTTP_DELETE:
+ boolean geloescht = delete(e);
+ if(geloescht) {
+ response = "geloescht";
+ } else {
+ response = "nicht geloescht";
+ }
+ break;
+ }
+ e.sendResponseHeaders(code, response.length());
+ OutputStream os = e.getResponseBody();
+ os.write(response.getBytes());
+ os.close();
}
- protected String jsonWithCustomType(Object o, String typeName) {
+ protected String bodyLesen(HttpExchange e) throws IOException {
+ InputStream is = e.getRequestBody();
+ BufferedReader r = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
- sb.append("{\"");
- sb.append(typeName);
- sb.append("\": ");
- Gson gson = new Gson();
- sb.append(gson.toJson(o));
- sb.append("}");
- return sb.toString();
+ String line = r.readLine();
+ while(line != null) {
+ sb.append(line);
+ line = r.readLine();
+ }
+ r.close();
+ String json = sb.toString();
+ return json;
}
+
+
+ protected abstract String get(HttpExchange e);
+ protected abstract String put(HttpExchange e) throws IOException;
+ protected abstract String post(HttpExchange e);
+ protected abstract boolean delete(HttpExchange e);
}
--
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