From c0f5a3a93b5a5e9102b71a4f95c5e557edb35eb5 Mon Sep 17 00:00:00 2001 From: ulrich <not disclosed> Date: Sun, 28 Oct 2018 07:38:10 +0000 Subject: [PATCH] WriteListener auskommentiert --- src/de/uhilger/wbx/web/TNServlet.java | 71 +++++++++++++++++++++++++++++++---- 1 files changed, 63 insertions(+), 8 deletions(-) diff --git a/src/de/uhilger/wbx/web/TNServlet.java b/src/de/uhilger/wbx/web/TNServlet.java index 198bced..98fd667 100644 --- a/src/de/uhilger/wbx/web/TNServlet.java +++ b/src/de/uhilger/wbx/web/TNServlet.java @@ -17,10 +17,15 @@ */ package de.uhilger.wbx.web; +import java.io.File; import java.io.IOException; +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; /** @@ -28,14 +33,22 @@ * 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 { + + private static final Logger logger = Logger.getLogger(TNServlet.class.getName()); /** * Diese String-Konstanten noetigenfalls in eine * 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"; @@ -52,17 +65,59 @@ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { - String urlStr = request.getRequestURI(); - if(urlStr.contains(TN) && (urlStr.endsWith(JPG) || urlStr.endsWith(JPEG) || urlStr.endsWith(PNG))) { - /* - TODO: hier mit Hilfe der Klasse Bild eine Miniaturansicht erzeugen - und in die Antwort schreiben - */ + String uriStr = request.getRequestURI(); + String relname = uriStr.substring(request.getContextPath().length()); + + // --- 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()); + buf.append("\n"); + buf.append("realpath of /: "); + buf.append(request.getServletContext().getRealPath("/")); + buf.append("\n"); + buf.append("urifile: "); + buf.append(logurifile.getAbsolutePath()); + buf.append("\n"); + buf.append("imgfile: "); + buf.append(logimgfile.getAbsolutePath()); + logger.fine(buf.toString()); + // --- 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()); + } } -- Gitblit v1.9.3