//IndexTransfer_p.java 
//-----------------------
//part of the AnomicHTTPD caching proxy
//(C) by Michael Peter Christen; mc@anomic.de
//first published on http://www.anomic.de
//Frankfurt, Germany, 2005
//
//This file is contributed by Martin Thelian
//last major change: $LastChangedDate$ by $LastChangedBy$
//Revision: $LastChangedRevision$
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//Using this software in any meaning (reading, learning, copying, compiling,
//running) means that you agree that the Author(s) is (are) not responsible
//for cost, loss of data or any harm that may be caused directly or indirectly
//by usage of this softare or this documentation. The usage of this software
//is on your own risk. The installation and usage (starting/running) of this
//software may allow other people or application to access your computer and
//any attached devices and is highly dependent on the configuration of the
//software which must be done by the user of the software; the author(s) is
//(are) also not responsible for proper configuration and usage of the
//software, even if provoked by documentation provided together with
//the software.
//
//Any changes to this file according to the GPL as documented in the file
//gpl.txt aside this file in the shipment you received can be done to the
//lines that follows this copyright notice here, but changes must not be
//done inside the copyright notive above. A re-distribution must contain
//the intact and unchanged copyright notice.
//Contributions and changes to the program code must be marked as such.

//You must compile this file with
//javac -classpath .:../Classes IndexControl_p.java
//if the shell's current path is HTROOT

import java.util.Enumeration;
import java.util.NoSuchElementException;
import java.util.TreeMap;

import de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.plasma.plasmaWordIndexDistribution;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacySeed;

public class IndexTransfer_p {
    
    public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
        // return variable that accumulates replacements
        plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
        serverObjects prop = new serverObjects();
        
        if (post != null) {            
            if (post.containsKey("startIndexTransfer")) {                
                yacySeed seed = yacyCore.seedDB.getConnected(post.get("hostHash", ""));                
                if (seed == null) {
                    prop.put("running_status","Disconnected peer");
                } else {                    
                    boolean deleteIndex = ((String)post.get("deleteIndex", "0")).equals("1");                    
                    switchboard.indexDistribution.startTransferWholeIndex(seed,deleteIndex);
                    prop.put("LOCATION","");
                    return prop;
                }
            } else if (post.containsKey("stopIndexTransfer")) {
                switchboard.indexDistribution.stopTransferWholeIndex(true);
                prop.put("LOCATION","");
                return prop;
                
            } else if (post.containsKey("newIndexTransfer")) {
                switchboard.indexDistribution.abortTransferWholeIndex(true);
                prop.put("LOCATION","");
                return prop;
            }
        }
        
        
        // insert constants
        plasmaWordIndexDistribution.transferIndexThread transfThread = switchboard.indexDistribution.transferIdxThread;
        int wcount = 0, ucount = 0;
        prop.put("wcount", Integer.toString(wcount = switchboard.wordIndex.size()));
        prop.put("ucount", Integer.toString(ucount = switchboard.urlPool.loadedURL.size()));
        prop.put("running",(transfThread==null)?0:1);
        if (transfThread != null) {
            int transferedIdxCount = transfThread.getTransferedIndexCount();
            prop.put("running_status",transfThread.getStatus());
            prop.put("running_twcount",transferedIdxCount);
            prop.put("running_twpercent",Float.toString(transfThread.getTransferedIndexPercent()));
            prop.put("running_twrange", transfThread.getRange());
            prop.put("running_twchunk", Integer.toString(transfThread.getChunkSize()));
            prop.put("running_deleteIndex", transfThread.deleteIndex()?1:0);
            prop.put("running_peerName",transfThread.getSeed().getName());
            prop.put("running_stopped",(transfThread.isFinished()) || (!transfThread.isAlive())?1:0);
        } else {
            if (!prop.containsKey("running_status")) prop.put("running_status","Not running");
        }
        
        
        
        //List known hosts
        yacySeed seed;
        int hc = 0;
        if ((yacyCore.seedDB != null) && (yacyCore.seedDB.sizeConnected() > 0)) {
            Enumeration e = yacyCore.dhtAgent.getAcceptRemoteIndexSeeds("------------");
            TreeMap hostList = new TreeMap();
            while (e.hasMoreElements()) {
                seed = (yacySeed) e.nextElement();
                if (seed != null) hostList.put(seed.get("Name", "nameless"),seed.hash);
            }
            
            String hostName = null;
            try {
                while ((hostName = (String) hostList.firstKey()) != null) {
                    prop.put("running_hosts_" + hc + "_hosthash", hostList.get(hostName));
                    prop.put("running_hosts_" + hc + "_hostname", /*seed.hash + " " +*/ hostName);
                    hc++;                
                    hostList.remove(hostName);
                }
            } catch (NoSuchElementException ex) {}
            prop.put("running_hosts", Integer.toString(hc));
        } else {
            prop.put("running_hosts", "0");
        }

        return prop;
    }
    
    
}