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70 lines
2.8 KiB
70 lines
2.8 KiB
//Thumbnail.java
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//------------
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// part of YACY
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//
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// (C) 2007 Alexander Schier
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//
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// last change: $LastChangedDate: $ by $LastChangedBy: $
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// $LastChangedRevision: $
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import de.anomic.http.httpHeader;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.plasmaURL;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.server.servletProperties;
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public class Thumbnail{
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
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servletProperties prop = new servletProperties();
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String command=env.getConfig("thumbnailProgram", "");
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if(command.equals("")||post==null||!post.containsKey("url")){
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prop.put("image", "thumbnail cannot be generated"); //TODO: put a "thumbnail not possible" image.
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return prop;
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}
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String[] cmdline=new String[3];
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cmdline[0]=env.getConfig("thumbnailProgram", "");
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cmdline[1]=post.get("url", "");
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plasmaSwitchboard sb=plasmaSwitchboard.getSwitchboard();
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File path=new File(sb.workPath, plasmaURL.urlHash(cmdline[1])+".png");
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cmdline[2]=path.getAbsolutePath();//does not contain an extension!
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try {
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Runtime.getRuntime().exec(cmdline);
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BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(path)));
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String line;
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StringBuffer image=new StringBuffer();
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while((line=br.readLine())!=null){
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image.append(line);
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}
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//path.delete(); //we do not cache, yet.
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prop.put("image", image.toString());
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} catch (IOException e) {
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prop.put("image", "error creating thumbnail");//TODO: put a "thumbnail error" image.
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}
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httpHeader out_header=new httpHeader();
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out_header.put(httpHeader.CONTENT_TYPE, "image/png");
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prop.setOutgoingHeader(out_header);
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return prop;
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}
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}
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