From 4c53ff2081c1042a09ae5637e2c6e85e274f3e0a Mon Sep 17 00:00:00 2001
From: ulrich <undisclosed>
Date: Sun, 18 Mar 2018 22:03:14 +0000
Subject: [PATCH] Titel als JNDI Variable

---
 src/de/uhilger/wbx/web/TNServlet.java |   85 ++++++++++++++++++++++--------------------
 1 files changed, 45 insertions(+), 40 deletions(-)

diff --git a/src/de/uhilger/wbx/web/TNServlet.java b/src/de/uhilger/wbx/web/TNServlet.java
index 0991c2c..98fd667 100644
--- a/src/de/uhilger/wbx/web/TNServlet.java
+++ b/src/de/uhilger/wbx/web/TNServlet.java
@@ -17,18 +17,15 @@
  */
 package de.uhilger.wbx.web;
 
-import de.uhilger.wbx.Bild;
-import java.awt.Container;
-import java.awt.Image;
-import java.awt.MediaTracker;
-import java.awt.Toolkit;
 import java.io.File;
 import java.io.IOException;
-import java.util.logging.Level;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
 import java.util.logging.Logger;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import net.coobird.thumbnailator.Thumbnails;
 import org.apache.catalina.servlets.DefaultServlet;
 
 /**
@@ -36,6 +33,8 @@
  * Miniaturansicht erzeugt werden, wie sie im Dateimanager 
  * der WebBox verwendet wird.
  * 
+ * Unterstuetzt werden die Varianten
+ * 120 (_tn), 240 (_kl), 500 (_dd), 700 (_mt), 1200 (_gr)
  */
 public class TNServlet extends DefaultServlet {
   
@@ -46,6 +45,10 @@
    * Konfigurationsdatei auslagern
    */
   public static final String TN = "_tn";
+  public static final String KL = "_kl";
+  public static final String SM = "_sm";
+  public static final String MT = "_mt";
+  public static final String GR = "_gr";
   public static final String JPG = ".jpg";
   public static final String JPEG = ".jpeg";
   public static final String PNG = ".png";
@@ -65,12 +68,11 @@
     String uriStr = request.getRequestURI();
     String relname = uriStr.substring(request.getContextPath().length());
     
-    /*
-    File urifile = new File(uriStr);
-    uriStr = uriStr.substring(request.getContextPath().length());
-    File dir = new File(request.getServletContext().getRealPath("/"));
-    File imgfile = new File(dir, uriStr);
-    
+    // --- Logausgabe Start
+    File logurifile = new File(uriStr);
+    String loguriStr = uriStr.substring(request.getContextPath().length());
+    File logdir = new File(request.getServletContext().getRealPath("/"));
+    File logimgfile = new File(logdir, loguriStr);    
     StringBuffer buf = new StringBuffer();
     buf.append("contextPath: ");
     buf.append(request.getContextPath());
@@ -79,40 +81,43 @@
     buf.append(request.getServletContext().getRealPath("/"));
     buf.append("\n");
     buf.append("urifile: ");
-    buf.append(urifile.getAbsolutePath());
+    buf.append(logurifile.getAbsolutePath());
     buf.append("\n");
     buf.append("imgfile: ");
-    buf.append(imgfile.getAbsolutePath());
+    buf.append(logimgfile.getAbsolutePath());
     logger.fine(buf.toString());
-    */
-    
-    if(uriStr.contains(TN) && (uriStr.endsWith(JPG) || uriStr.endsWith(JPEG) || uriStr.endsWith(PNG))) {
-      /*
-      TODO: hier mit Hilfe der Klasse Bild eine Miniaturansicht erzeugen  
-      und in die Antwort schreiben
-      */ 
-      File dir = new File(request.getServletContext().getRealPath("/"));
-      relname = relname.replace(TN, "");
-      File imgfile = new File(dir, relname);
-      Image image = Toolkit.getDefaultToolkit().getImage(imgfile.getAbsolutePath());
-      MediaTracker mediaTracker = new MediaTracker(new Container());
-      mediaTracker.addImage(image, 0);
-      try {
-        mediaTracker.waitForID(0);
-
-        if (!mediaTracker.isErrorAny()) {
-          Bild bild = new Bild();
-          bild.writeImageStream(image, bild.getVariantenGroesse(Bild.WINZIG), bild.getMimeType(imgfile), response.getOutputStream());
-        }
-      } catch (InterruptedException ex) {
-        logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex);
-      }
-      
+    // --- Logausgabe Ende
+        
+    if(uriStr.endsWith(JPG) || uriStr.endsWith(JPEG) || uriStr.endsWith(PNG)) {
+      if(uriStr.contains(TN)) {
+        bildAusgeben(request, response, relname, TN, 120);
+      } else if(uriStr.contains(KL)) {
+        bildAusgeben(request, response, relname, KL, 240);
+      } else if(uriStr.contains(SM)) {
+        bildAusgeben(request, response, relname, SM, 500);
+      } else if(uriStr.contains(MT)) {
+        bildAusgeben(request, response, relname, MT, 700);
+      } else if(uriStr.contains(GR)) {
+        bildAusgeben(request, response, relname, GR, 1200);
+      } else {
+        super.doGet(request, response);
+      }      
     } else {
       super.doGet(request, response);
     }
-            
-    
   }
   
+  private void bildAusgeben(HttpServletRequest request, HttpServletResponse response, String relname, String indicator, int gr) throws UnsupportedEncodingException, IOException {
+    File dir = new File(request.getServletContext().getRealPath("/"));
+    relname = relname.replace(indicator, "");
+    File imgfile = new File(dir, URLDecoder.decode(relname, "utf-8"));
+    
+    // 120, 240, 500, 700, 1200
+
+    Thumbnails.of(imgfile)
+            .size(gr, gr)
+            .keepAspectRatio(true)
+            .outputQuality(0.7)
+            .toOutputStream(response.getOutputStream());
+  }  
 }

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