From 671a35a1f6af8c5faa5f52e626e6ba3cdbab2b17 Mon Sep 17 00:00:00 2001 From: ulrich <not disclosed> Date: Sun, 04 Mar 2018 08:10:26 +0000 Subject: [PATCH] Verkleinern fuer Hochformat geaendert --- src/de/uhilger/wbx/web/TNServlet.java | 80 +++++++++++++++++++++++++++++++++------- 1 files changed, 66 insertions(+), 14 deletions(-) diff --git a/src/de/uhilger/wbx/web/TNServlet.java b/src/de/uhilger/wbx/web/TNServlet.java index 2d4e744..e86adb4 100644 --- a/src/de/uhilger/wbx/web/TNServlet.java +++ b/src/de/uhilger/wbx/web/TNServlet.java @@ -17,10 +17,16 @@ */ 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.io.OutputStream; +import java.io.UnsupportedEncodingException; +import java.net.URLDecoder; +import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; @@ -32,6 +38,8 @@ * 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 { @@ -42,6 +50,10 @@ * 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"; @@ -59,23 +71,63 @@ throws ServletException, IOException { String uriStr = request.getRequestURI(); - File imgfile = new File(uriStr); + String relname = uriStr.substring(request.getContextPath().length()); - logger.fine("realpath of /: " + request.getServletContext().getRealPath("/")); - - logger.fine("imgfile: " + imgfile.getAbsolutePath()); - - 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 - */ - //writeImageStream(Image image, int gr, String mimeType, response.getOutputStream()); + // --- 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, Bild.WINZIG); + } else if(uriStr.contains(KL)) { + bildAusgeben(request, response, relname, KL, Bild.KLEIN); + } else if(uriStr.contains(SM)) { + bildAusgeben(request, response, relname, SM, Bild.SEMI); + } else if(uriStr.contains(MT)) { + bildAusgeben(request, response, relname, MT, Bild.MITTEL); + } else if(uriStr.contains(GR)) { + bildAusgeben(request, response, relname, GR, Bild.GROSS); + } else { + super.doGet(request, response); + } } else { super.doGet(request, response); } - - } + private void bildAusgeben(HttpServletRequest request, HttpServletResponse response, String relname, String indicator, int bildTyp) throws UnsupportedEncodingException, IOException { + File dir = new File(request.getServletContext().getRealPath("/")); + relname = relname.replace(indicator, ""); + File imgfile = new File(dir, URLDecoder.decode(relname, "utf-8")); + 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(bildTyp), bild.getMimeType(imgfile), response.getOutputStream()); + } + } catch (InterruptedException ex) { + logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex); + } + } } -- Gitblit v1.9.3