// IndexCreateIndexingQueue_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, 2004, 2005
// last major change: 04.07.2005
//
// 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 IndexCreate_p.java
// if the shell's current path is HTROOT

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.io.IOException;

import de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaCrawlEURL;
import de.anomic.plasma.plasmaHTCache;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.plasma.plasmaSwitchboardQueue;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacySeed;

public class IndexCreateIndexingQueue_p {
    
    private static SimpleDateFormat dayFormatter = new SimpleDateFormat("yyyy/MM/dd", Locale.US);
    private static String daydate(Date date) {
        if (date == null) return ""; else return dayFormatter.format(date);
    }
    
    public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
        // return variable that accumulates replacements
        plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
        serverObjects prop = new serverObjects();
        prop.put("rejected", 0);
        int showRejectedCount = 10;
        
        if (post != null) {
            if (post.containsKey("clearRejected")) {
                switchboard.urlPool.errorURL.clearStack();
            }
            if (post.containsKey("moreRejected")) {
                showRejectedCount = Integer.parseInt(post.get("showRejected", "10"));
            }
        }

        yacySeed initiator;
        boolean dark;
        int i;
        
        if (switchboard.sbQueue.size() == 0) {
            prop.put("indexing-queue", 0); //is empty
        } else {
            prop.put("indexing-queue", 1);
            prop.put("indexing-queue_num", switchboard.sbQueue.size());//num entries in queue
            dark = true;
            plasmaSwitchboardQueue.Entry pcentry;
            for (i = 0; i < switchboard.sbQueue.size(); i++) try {
                pcentry = (plasmaSwitchboardQueue.Entry) switchboard.sbQueue.get(i);
                if (pcentry != null) {
                    initiator = yacyCore.seedDB.getConnected(pcentry.initiator());
                    prop.put("indexing-queue_list_"+i+"_dark", ((dark) ? 1 : 0));
                    prop.put("indexing-queue_list_"+i+"_initiator", ((initiator == null) ? "proxy" : initiator.getName()));
                    prop.put("indexing-queue_list_"+i+"_depth", pcentry.depth());
                    prop.put("indexing-queue_list_"+i+"_modified", (pcentry.responseHeader() == null) ? "null" : daydate(pcentry.responseHeader().lastModified()));
                    prop.put("indexing-queue_list_"+i+"_anchor", pcentry.anchorName());
                    prop.put("indexing-queue_list_"+i+"_url", pcentry.normalizedURLString());
                    dark = !dark;
                }
            } catch (IOException e) {
            }
            prop.put("indexing-queue_list", i);
        }
        
        // failure cases
        if (switchboard.urlPool.errorURL.stackSize() != 0) {
            if (showRejectedCount > switchboard.urlPool.errorURL.stackSize()) showRejectedCount = switchboard.urlPool.errorURL.stackSize();
            prop.put("rejected", 1);
            prop.put("rejected_num", switchboard.urlPool.errorURL.stackSize());
            if (showRejectedCount != switchboard.urlPool.errorURL.stackSize()) {
                prop.put("rejected_only-latest", 1);
                prop.put("rejected_only-latest_num", showRejectedCount);
                prop.put("rejected_only-latest_newnum", ((int) (showRejectedCount * 1.5)));
            }else{
                prop.put("rejected_only-latest", 0);
            }
            dark = true;
            String url, initiatorHash, executorHash;
            plasmaCrawlEURL.Entry entry;
            yacySeed initiatorSeed, executorSeed;
            int j=0;
            for (i = switchboard.urlPool.errorURL.stackSize() - 1; i >= (switchboard.urlPool.errorURL.stackSize() - showRejectedCount); i--) {
                entry = (plasmaCrawlEURL.Entry) switchboard.urlPool.errorURL.getStack(i);
                initiatorHash = entry.initiator();
                executorHash = entry.executor();
                url = entry.url().toString();
                initiatorSeed = yacyCore.seedDB.getConnected(initiatorHash);
                executorSeed = yacyCore.seedDB.getConnected(executorHash);
                prop.put("rejected_list_"+j+"_initiator", ((initiatorSeed == null) ? "proxy" : initiatorSeed.getName()));
                prop.put("rejected_list_"+j+"_executor", ((executorSeed == null) ? "proxy" : executorSeed.getName()));
                prop.put("rejected_list_"+j+"_url", url);
                prop.put("rejected_list_"+j+"_failreason", entry.failreason());
                prop.put("rejected_list_"+j+"_dark", ((dark) ? 1 : 0));
                dark = !dark;
                j++;
            }
            prop.put("rejected_list", j);
        }

        // return rewrite properties
        return prop;
    }
    
}