mirror of
https://github.com/yacy/yacy_search_server.git
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fed26f33a8
to support the new time parser and search functions in YaCy a high precision detection of date and time on the day is necessary. That requires that the time zone of the document content and the time zone of the user, doing a search, is detected. The time zone of the search request is done automatically using the browsers time zone offset which is delivered to the search request automatically and invisible to the user. The time zone for the content of web pages cannot be detected automatically and must be an attribute of crawl starts. The advanced crawl start now provides an input field to set the time zone in minutes as an offset number. All parsers must get a time zone offset passed, so this required the change of the parser java api. A lot of other changes had been made which corrects the wrong handling of dates in YaCy which was to add a correction based on the time zone of the server. Now no correction is added and all dates in YaCy are UTC/GMT time zone, a normalized time zone for all peers.
154 lines
7.2 KiB
Java
154 lines
7.2 KiB
Java
/**
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* NetworkHistory
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* Copyright 2014 by Michael Peter Christen
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* First released 10.10.2014 at http://yacy.net
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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import java.io.IOException;
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import java.text.ParseException;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.document.encoding.ASCII;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.kelondro.blob.Tables.Row;
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import net.yacy.search.Switchboard;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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import net.yacy.visualization.ChartPlotter;
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import net.yacy.visualization.RasterPlotter;
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public class NetworkHistory {
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public static RasterPlotter respond(@SuppressWarnings("unused") final RequestHeader header, serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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if (post == null) post = new serverObjects();
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final int maxtime = post.getInt("maxtime", 48); // hours
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final int bottomscale = post.getInt("scale", 1); // 1h
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final String[] columnsx = post.get("columns", "cC").split("\\|"); // new String[]{"aM", "aW", "aD", "aH", "cC", "cD", "cP", "cR", "cI"};
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/*
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aM activeLastMonth
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aW activeLastWeek
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aD activeLastDay
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aH activeLastHour
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cC countConnected (Active Senior)
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cD countDisconnected (Passive Senior)
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cP countPotential (Junior)
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cR count of the RWI entries
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cI size of the index (number of documents)
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*/
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final Set<String> columns = new LinkedHashSet<>();
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for (String col: columnsx) columns.add(col);
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// scan the database and put in values
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List<Map<String, Long>> rows = new ArrayList<>(maxtime * 2);
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long now = System.currentTimeMillis();
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long timelimit = now - maxtime * 3600000L;
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try {
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Iterator<Row> rowi = sb.tables.iterator("stats", false);
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Map <String, Long> statrow;
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while (rowi.hasNext()) {
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Row row = rowi.next();
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String d = ASCII.String(row.getPK());
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Date date = GenericFormatter.SHORT_MINUTE_FORMATTER.parse(d, 0).getTime();
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if (date.getTime() < timelimit) break;
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statrow = new HashMap<>();
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for (String key: columns) {
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byte[] x = row.get(key);
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if (x != null) statrow.put(key, Long.parseLong(ASCII.String(x)));
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}
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statrow.put("time", date.getTime());
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rows.add(statrow);
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}
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} catch (final IOException|ParseException e) {
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ConcurrentLog.logException(e);
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}
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// find correct scale
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int maxpeers = 100, minpeers = Integer.MAX_VALUE; // to be measured by pre-scanning the db
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for (Map<String, Long> row: rows) {
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for (String column: columns) {
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Long v = row.get(column);
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if (v != null) maxpeers = Math.max(maxpeers, (int) v.longValue());
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if (v != null && v.longValue() > 0) minpeers = Math.min(minpeers, (int) v.longValue());
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}
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}
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maxpeers = 10 * ((maxpeers / 9 * 10) / 10);
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minpeers = 10 * ((minpeers * 9 / 10) / 10);
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final int leftborder = 30;
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final int rightborder = 10;
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final int width = post.getInt("width", 768 + leftborder + rightborder);
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final int hspace = width - leftborder - rightborder;
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final int height = post.getInt("height", 240);
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final int topborder = 20;
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final int bottomborder = 20;
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final int vspace = height - topborder - bottomborder;
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final int leftscale = 10 * (maxpeers / 100);
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String timestr = maxtime + " HOURS";
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if (maxtime > 24 && maxtime % 24 == 0) timestr = (maxtime / 24) + " DAYS";
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if (maxtime == 168) timestr = "WEEK";
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if (maxtime > 168 && maxtime % 168 == 0) timestr = (maxtime / 168) + " WEEKS";
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String headline = "YACY NETWORK HISTORY";
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if (columns.contains("aM")) headline += ", ACTIVE PEERS WITHIN THE LAST MONTH";
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if (columns.contains("aW")) headline += ", ACTIVE PEERS WITHIN THE LAST WEEK";
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if (columns.contains("aD")) headline += ", ACTIVE PEERS WITHIN THE LAST DAY";
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if (columns.contains("aH")) headline += ", ACTIVE PEERS WITHIN THE LAST HOUR";
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if (columns.contains("cC")) headline += ", ACTIVE SENIOR PEERS";
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if (columns.contains("cD")) headline += ", PASSIVE SENIOR PEERS";
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if (columns.contains("cP")) headline += ", POTENTIAL JUNIOR PEERS";
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if (columns.contains("cI")) headline = "YACY PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF DOCUMENTS";
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if (columns.contains("cR")) headline = "YACY PEER '" + sb.peers.myName() + "' INDEX SIZE HISTORY: NUMBER OF RWI ENTRIES";
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ChartPlotter chart = new ChartPlotter(width, height, 0xFFFFFFl, 0x000000l, 0xAAAAAAl, leftborder, rightborder, topborder, bottomborder, headline, "IN THE LAST " + timestr);
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int pixelperscale = Math.max(16, hspace / (maxtime / bottomscale));
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chart.declareDimension(ChartPlotter.DIMENSION_BOTTOM, bottomscale, pixelperscale, -maxtime, 0x000000l, 0xCCCCCCl, "TIME/HOURS");
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pixelperscale = Math.max(16, 10 * ((vspace * leftscale / (maxpeers - minpeers)) / 10));
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chart.declareDimension(ChartPlotter.DIMENSION_LEFT, leftscale, pixelperscale, minpeers, 0x008800l, null , columns.contains("cI") ? "DOCUMENTS" : columns.contains("cR") ? "RWIs" : "PEERS");
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// write the data
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float x0, x1;
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int y0, y1;
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Long time;
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for (String column: columns) {
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x0 = 1.0f; y0 = 0;
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for (Map<String, Long> row: rows) {
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time = row.get("time");
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if (time == null) continue;
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Long v = row.get(column);
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if (v == null) continue;
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x1 = (time - now) / 3600000.0f;
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y1 = (int) v.longValue();
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chart.setColor(0x228822);
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chart.chartDot(ChartPlotter.DIMENSION_BOTTOM, ChartPlotter.DIMENSION_LEFT, x1, y1, 2, null, 315);
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chart.setColor(0x008800);
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if (x0 < 0.0f) chart.chartLine(ChartPlotter.DIMENSION_BOTTOM, ChartPlotter.DIMENSION_LEFT, x0, y0, x1, y1);
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x0 = x1; y0 = y1;
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}
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}
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return chart;
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}
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}
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