mirror of
https://github.com/yacy/yacy_search_server.git
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217 lines
9.6 KiB
Java
217 lines
9.6 KiB
Java
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// CrawlURLFetchStack_p.java
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// -------------------------------------
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// part of YACY
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//
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// (C) 2007 by Franz Brausse
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//
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// last change: $LastChangedDate: $ by $LastChangedBy: $
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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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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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import java.io.File;
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import java.io.IOException;
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import java.io.Writer;
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import java.net.MalformedURLException;
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import java.util.HashMap;
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import java.util.Iterator;
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import de.anomic.data.URLFetcherStack;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.htmlFilter.htmlFilterWriter;
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import de.anomic.http.httpHeader;
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import de.anomic.net.URL;
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import de.anomic.plasma.plasmaCrawlNURL;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverFileUtils;
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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.logging.serverLog;
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public class CrawlURLFetchStack_p {
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public static final HashMap /* of PeerName, sent URLs */ fetchMap = new HashMap();
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private static URLFetcherStack stack = null;
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public static int maxURLsPerFetch = 50;
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public static URLFetcherStack getURLFetcherStack(serverSwitch env) {
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if (stack == null) try {
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stack = new URLFetcherStack(env.getConfig(plasmaSwitchboard.DBPATH, plasmaSwitchboard.DBPATH_DEFAULT));
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} catch (IOException e) {
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serverLog.logSevere("URLFETCHER", "Couldn't initialize URL stack: " + e.getMessage());
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}
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return stack;
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}
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
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final serverObjects prop = new serverObjects();
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plasmaSwitchboard sb = (plasmaSwitchboard)env;
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if (post != null) {
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if (post.containsKey("addurls")) {
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prop.put("addedUrls", 1);
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prop.put("addedUrls_added", addURLs(post, post.getInt("addurls", -1), getURLFetcherStack(env)));
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}
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else if (post.containsKey("setMaxSize")) {
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final int count = post.getInt("maxSize", maxURLsPerFetch);
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if (count > 0) {
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maxURLsPerFetch = count;
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prop.put("set", 1);
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prop.put("set_value", maxURLsPerFetch);
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} else {
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prop.put("set", 2);
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prop.put("set_value", count);
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}
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}
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else if (post.containsKey("shiftlcq")) {
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int count = Math.min(post.getInt("shiftloc", 0), sb.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_CORE));
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try {
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shiftFromNotice(sb.noticeURL, plasmaCrawlNURL.STACK_TYPE_CORE, getURLFetcherStack(env), count);
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prop.put("shiftloc", 1);
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prop.put("shiftloc_value", count);
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} catch (IOException e) {
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prop.put("shiftloc", 2);
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prop.put("shiftloc_error", e.getMessage());
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}
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}
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else if (post.containsKey("shiftrcq")) {
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int count = post.getInt("shiftrem", 0);
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try {
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shiftFromNotice(sb.noticeURL, plasmaCrawlNURL.STACK_TYPE_LIMIT, getURLFetcherStack(env), count);
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prop.put("shiftrem", 1);
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prop.put("shiftrem_value", count);
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} catch (IOException e) {
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prop.put("shiftrem", 2);
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prop.put("shiftrem_error", e.getMessage());
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}
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}
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else if (post.containsKey("subupload")) {
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if (post.get("upload", "").length() == 0) {
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prop.put("uploadError", 1);
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} else {
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final File file = new File(post.get("upload", ""));
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final String content = new String((byte[])post.get("upload$file"));
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final String type = post.get("uploadType", "");
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if (type.equals("plain")) {
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prop.put("upload_added", addURLs(content.split("\n"), getURLFetcherStack(env)));
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prop.put("upload_failed", 0);
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prop.put("upload", 1);
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} else if (type.equals("html")) {
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try {
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final htmlFilterContentScraper scraper = new htmlFilterContentScraper(new URL(file));
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final Writer writer = new htmlFilterWriter(null, null, scraper, null, false);
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serverFileUtils.write(content, writer);
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writer.close();
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final Iterator it = ((HashMap)scraper.getAnchors()).keySet().iterator();
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int added = 0, failed = 0;
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String url;
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while (it.hasNext()) try {
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url = (String)it.next();
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getURLFetcherStack(env).push(new URL(url));
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added++;
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} catch (MalformedURLException e) { failed++; }
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prop.put("upload", 1);
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prop.put("upload_added", added);
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prop.put("upload_failed", failed);
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} catch (Exception e) {
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e.printStackTrace();
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prop.put("upload", 2);
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prop.put("upload_error", e.getMessage());
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}
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}
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}
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}
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}
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putFetched(prop);
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prop.put("urlCount", getURLFetcherStack(env).size());
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prop.put("totalFetched", getURLFetcherStack(env).getPopped());
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prop.put("totalAdded", getURLFetcherStack(env).getPushed());
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prop.put("maxSize", maxURLsPerFetch);
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prop.put("locurls", sb.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_CORE));
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prop.put("remurls", sb.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_LIMIT));
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prop.put("locurlsVal", Math.min(sb.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_CORE), 500));
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prop.put("remurlsVal", Math.min(sb.noticeURL.stackSize(plasmaCrawlNURL.STACK_TYPE_LIMIT), 500));
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return prop;
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}
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private static void putFetched(serverObjects prop) {
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Iterator it = fetchMap.keySet().iterator();
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int count = 0;
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while (it.hasNext()) {
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String key = (String)it.next();
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prop.put("peers_" + count + "_peer", key);
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prop.put("peers_" + count + "_amount", ((Integer)fetchMap.get(key)).intValue());
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count++;
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}
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prop.put("peers", count);
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}
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private static int addURLs(String[] urls, URLFetcherStack stack) {
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int count = -1;
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for (int i=0; i<urls.length; i++) try {
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if (urls[i].length() == 0) continue;
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stack.push(new URL(urls[i]));
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count++;
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} catch (MalformedURLException e) { /* ignore this */ }
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return count;
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}
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private static void shiftFromNotice(plasmaCrawlNURL nurl, int fromStackType, URLFetcherStack stack, int count) throws IOException {
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plasmaCrawlNURL.Entry entry;
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for (int i=0; i<count; i++) {
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entry = nurl.pop(fromStackType);
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stack.push(entry.url());
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}
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}
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private static int addURLs(serverObjects post, int amount, URLFetcherStack stack) {
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int count = 0;
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String url;
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for (int i=0; i<amount; i++) {
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url = post.get("url" + count++, null);
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if (url == null || url.length() == 0) continue;
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try {
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stack.push(new URL(url));
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count++;
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} catch (MalformedURLException e) {
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serverLog.logInfo("URLFETCHER", "retrieved invalid url for adding to the stack: " + url);
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}
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}
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return count;
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}
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}
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