mirror of
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468 lines
24 KiB
Java
468 lines
24 KiB
Java
/**
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* Load_RSS_p
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* Copyright 2010 by Michael Peter Christen, mc@yacy.net, Frankfurt am Main, Germany
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* First released 20.08.2010 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.net.MalformedURLException;
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import java.text.DateFormat;
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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.List;
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import java.util.Map;
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import java.util.regex.Pattern;
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import org.apache.commons.lang.StringUtils;
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import net.yacy.cora.document.encoding.ASCII;
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import net.yacy.cora.document.encoding.UTF8;
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import net.yacy.cora.document.feed.Hit;
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import net.yacy.cora.document.feed.RSSFeed;
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import net.yacy.cora.document.feed.RSSMessage;
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import net.yacy.cora.document.feed.RSSReader;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.document.id.MultiProtocolURL;
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import net.yacy.cora.federate.yacy.CacheStrategy;
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import net.yacy.cora.protocol.ClientIdentification;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.util.CommonPattern;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.cora.util.SpaceExceededException;
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import net.yacy.crawler.HarvestProcess;
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import net.yacy.crawler.data.CrawlProfile;
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import net.yacy.crawler.retrieval.RSSLoader;
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import net.yacy.crawler.retrieval.Response;
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import net.yacy.data.WorkTables;
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import net.yacy.kelondro.blob.Tables;
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import net.yacy.kelondro.blob.Tables.Row;
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import net.yacy.repository.Blacklist.BlacklistType;
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import net.yacy.search.Switchboard;
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import net.yacy.search.schema.CollectionSchema;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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public class Load_RSS_p {
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/** Value prefix of checkbox inputs used to select items */
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private static final String CHECKBOX_ITEM_PREFIX = "mark_";
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/** Value prefix of checkbox inputs used to select media items */
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private static final String CHECKBOX_MEDIA_ITEM_PREFIX = "media_";
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public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final serverObjects prop = new serverObjects();
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final Switchboard sb = (Switchboard)env;
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final String collection = post == null ? "user" : CommonPattern.SPACE.matcher(post.get("collection", "user").trim()).replaceAll("");
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Map<String, Pattern> collections = CrawlProfile.collectionParser(collection);
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boolean collectionEnabled = sb.index.fulltext().getDefaultConfiguration().isEmpty() || sb.index.fulltext().getDefaultConfiguration().contains(CollectionSchema.collection_sxt);
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prop.put("showload_collectionEnabled", collectionEnabled ? 1 : 0);
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prop.put("showload_collection", collection);
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prop.put("showload", 0);
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prop.put("showitems", 0);
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prop.put("shownewfeeds", 0);
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prop.put("showscheduledfeeds", 0);
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prop.put("url", "");
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prop.put("showerrmsg", 0);
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if (post != null && post.containsKey("removeSelectedFeedsNewList")) {
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for (final Map.Entry<String, String> entry: post.entrySet()) {
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if (entry.getValue().startsWith(CHECKBOX_ITEM_PREFIX)) try {
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sb.tables.delete("rss", entry.getValue().substring(CHECKBOX_ITEM_PREFIX.length()).getBytes());
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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}
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if (post != null && post.containsKey("removeAllFeedsNewList")) try {
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final Iterator<Row> plainIterator = sb.tables.iterator("rss");
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Row row;
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String messageurl;
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final List<byte[]> d = new ArrayList<byte[]>();
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while (plainIterator.hasNext()) {
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row = plainIterator.next();
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if (row == null) continue;
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messageurl = row.get("url", "");
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if (messageurl.isEmpty()) continue;
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final byte[] api_pk = row.get("api_pk");
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final Row r = api_pk == null ? null : sb.tables.select("api", api_pk);
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if (r == null || !r.get("comment", "").matches(".*" + Pattern.quote(messageurl) + ".*")) {
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d.add(row.getPK());
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}
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}
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for (final byte[] pk: d) {
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sb.tables.delete("rss", pk);
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}
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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}
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if (post != null && post.containsKey("removeSelectedFeedsScheduler")) {
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for (final Map.Entry<String, String> entry: post.entrySet()) {
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if (entry.getValue().startsWith(CHECKBOX_ITEM_PREFIX)) try {
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final byte[] pk = entry.getValue().substring(CHECKBOX_ITEM_PREFIX.length()).getBytes();
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final Row rssRow = sb.tables.select("rss", pk);
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final byte[] schedulerPK = rssRow.get("api_pk", (byte[]) null);
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if (schedulerPK != null) sb.tables.delete("api", schedulerPK);
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rssRow.remove("api_pk");
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sb.tables.insert("rss", pk, rssRow);
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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}
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}
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}
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if (post != null && post.containsKey("removeAllFeedsScheduler")) try {
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final Iterator<Row> plainIterator = sb.tables.iterator("rss");
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Row row;
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String messageurl;
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final List<byte[]> d = new ArrayList<byte[]>();
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while (plainIterator.hasNext()) {
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row = plainIterator.next();
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if (row == null) continue;
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messageurl = row.get("url", "");
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if (messageurl.isEmpty()) continue;
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final byte[] api_pk = row.get("api_pk");
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final Row r = api_pk == null ? null : sb.tables.select("api", api_pk);
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if (r != null && r.get("comment", "").matches(".*" + Pattern.quote(messageurl) + ".*")) {
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d.add(row.getPK());
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}
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}
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for (final byte[] pk: d) {
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final Row rssRow = sb.tables.select("rss", pk);
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final byte[] schedulerPK = rssRow.get("api_pk", (byte[]) null);
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if (schedulerPK != null) sb.tables.delete("api", schedulerPK);
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rssRow.remove("api_pk");
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sb.tables.insert("rss", pk, rssRow);
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}
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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}
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if (post != null && post.containsKey("addSelectedFeedScheduler")) {
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ClientIdentification.Agent agent = ClientIdentification.getAgent(post.get("agentName", ClientIdentification.yacyInternetCrawlerAgentName));
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for (final Map.Entry<String, String> entry: post.entrySet()) {
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if (entry.getValue().startsWith(CHECKBOX_ITEM_PREFIX)) {
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Row row;
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try {
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final byte [] pk = entry.getValue().substring(CHECKBOX_ITEM_PREFIX.length()).getBytes();
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row = sb.tables.select("rss", pk);
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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continue;
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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continue;
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}
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DigestURL url = null;
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try {
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url = new DigestURL(row.get("url", ""));
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} catch (final MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "malformed url '" + row.get("url", "") + "': " + e.getMessage());
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continue;
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}
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// load feeds concurrently to get better responsibility in web interface
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new RSSLoader(sb, url, collections, agent).start();
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}
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}
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}
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if (post == null || (post != null && (
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post.containsKey("addSelectedFeedScheduler") ||
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post.containsKey("removeSelectedFeedsNewList") ||
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post.containsKey("removeAllFeedsNewList") ||
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post.containsKey("removeSelectedFeedsScheduler") ||
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post.containsKey("removeAllFeedsScheduler")
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))) {
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try {
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// get list of primary keys from the api table with scheduled feed loading requests
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Tables.Row row;
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String messageurl;
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// check feeds
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int newc = 0, apic = 0;
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final Iterator<Row> plainIterator = sb.tables.iterator("rss");
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while (plainIterator.hasNext()) {
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row = plainIterator.next();
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if (row == null) continue;
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messageurl = row.get("url", "");
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if (messageurl.isEmpty()) continue;
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// get referrer
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final String referrerURL = sb.getURL(row.get("referrer", "").getBytes());
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// check if feed is registered in scheduler
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final byte[] api_pk = row.get("api_pk");
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final Row r = api_pk == null ? null : sb.tables.select("api", api_pk);
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if (r != null && r.get("comment", "").matches(".*" + Pattern.quote(messageurl) + ".*")) {
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// this is a recorded entry
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final Date date_next_exec = r.get(WorkTables.TABLE_API_COL_DATE_NEXT_EXEC, (Date) null);
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prop.put("showscheduledfeeds_list_" + apic + "_pk", UTF8.String(row.getPK()));
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prop.put("showscheduledfeeds_list_" + apic + "_count", apic);
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prop.put("showscheduledfeeds_list_" + apic + "_rss", MultiProtocolURL.escape(messageurl).toString());
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prop.putXML("showscheduledfeeds_list_" + apic + "_title", row.get("title", ""));
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prop.putXML("showscheduledfeeds_list_" + apic + "_referrer", referrerURL == null ? "#" : referrerURL);
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prop.put("showscheduledfeeds_list_" + apic + "_recording", DateFormat.getDateTimeInstance().format(row.get("recording_date", new Date())));
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prop.put("showscheduledfeeds_list_" + apic + "_lastload", DateFormat.getDateTimeInstance().format(row.get("last_load_date", new Date())));
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prop.put("showscheduledfeeds_list_" + apic + "_nextload", date_next_exec == null ? "" : DateFormat.getDateTimeInstance().format(date_next_exec));
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prop.put("showscheduledfeeds_list_" + apic + "_lastcount", row.get("last_load_count", 0));
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prop.put("showscheduledfeeds_list_" + apic + "_allcount", row.get("all_load_count", 0));
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prop.put("showscheduledfeeds_list_" + apic + "_updperday", row.get("avg_upd_per_day", 0));
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apic++;
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} else {
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// this is a new entry
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prop.put("shownewfeeds_list_" + newc + "_pk", UTF8.String(row.getPK()));
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prop.put("shownewfeeds_list_" + newc + "_count", newc);
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prop.putXML("shownewfeeds_list_" + newc + "_rss", messageurl);
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prop.putXML("shownewfeeds_list_" + newc + "_title", row.get("title", ""));
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prop.putXML("shownewfeeds_list_" + newc + "_referrer", referrerURL == null ? "" : referrerURL);
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prop.put("shownewfeeds_list_" + newc + "_recording", DateFormat.getDateTimeInstance().format(row.get("recording_date", new Date())));
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newc++;
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}
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if (apic > 1000 || newc > 1000) break;
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}
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prop.put("showscheduledfeeds_list" , apic);
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prop.put("showscheduledfeeds_num", apic);
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prop.put("showscheduledfeeds", apic > 0 ? apic : 0);
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prop.put("shownewfeeds_list" , newc);
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prop.put("shownewfeeds_num", newc);
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prop.put("shownewfeeds", newc > 0 ? 1 : 0);
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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}
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return prop;
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}
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prop.put("url", post.get("url", ""));
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int repeat_time = post.getInt("repeat_time", -1);
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final String repeat_unit = post.get("repeat_unit", "seldays"); // selminutes, selhours, seldays
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if (!"on".equals(post.get("repeat", "off")) && repeat_time > 0) repeat_time = -1;
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boolean record_api = false;
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DigestURL url = null;
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try {
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url = post.containsKey("url") ? new DigestURL(post.get("url", "")) : null;
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} catch (final MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "url not well-formed: '" + post.get("url", "") + "'");
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}
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ClientIdentification.Agent agent = post == null ? ClientIdentification.yacyInternetCrawlerAgent : ClientIdentification.getAgent(post.get("agentName", ClientIdentification.yacyInternetCrawlerAgentName));
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// if we have an url then try to load the rss
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RSSReader rss = null;
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if (url != null) try {
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prop.put("url", url.toNormalform(true));
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final Response response = sb.loader.load(sb.loader.request(url, true, false), CacheStrategy.NOCACHE, Integer.MAX_VALUE, BlacklistType.CRAWLER, agent);
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final byte[] resource = response == null ? null : response.getContent();
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rss = resource == null ? null : RSSReader.parse(RSSFeed.DEFAULT_MAXSIZE, resource);
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} catch (final IOException e) {
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ConcurrentLog.warn("Load_RSS", e.getMessage());
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prop.put("showerrmsg", 1);
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prop.put("showerrmsg_msgtxt", "no valid response from given url");
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return prop; // if no response nothing to process further
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}
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// index all selected items: description only
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if (rss != null && post.containsKey("indexSelectedItemContent")) {
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final RSSFeed feed = rss.getFeed();
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final Map<String, DigestURL> hash2UrlMap = new HashMap<String, DigestURL>();
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loop: for (final Map.Entry<String, String> entry: post.entrySet()) {
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if (entry.getValue().startsWith(CHECKBOX_ITEM_PREFIX)) {
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/* Process selected item links */
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final RSSMessage message = feed.getMessage(entry.getValue().substring(CHECKBOX_ITEM_PREFIX.length()));
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if(message == null || StringUtils.isBlank(message.getLink())) {
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/* Link element is optional in RSS 2.0 and Atom */
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continue loop;
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}
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DigestURL messageUrl;
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try {
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messageUrl = new DigestURL(message.getLink());
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} catch (MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "Malformed feed item link URL : " + message.getLink());
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continue loop;
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}
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if (RSSLoader.indexTriggered.containsKey(messageUrl.hash())) {
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continue loop;
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}
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hash2UrlMap.put(ASCII.String(messageUrl.hash()), messageUrl);
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} else if(entry.getValue().startsWith(CHECKBOX_MEDIA_ITEM_PREFIX)) {
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/* Process selected item enclosure (media) links */
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final RSSMessage message = feed.getMessage(entry.getValue().substring(CHECKBOX_MEDIA_ITEM_PREFIX.length()));
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if(message == null || StringUtils.isBlank(message.getEnclosure())) {
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/* Enclosure element is optional */
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continue loop;
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}
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DigestURL mediaUrl;
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try {
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mediaUrl = new DigestURL(message.getEnclosure());
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} catch (MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "Malformed feed item enclosure URL : " + message.getEnclosure());
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continue loop;
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}
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if (RSSLoader.indexTriggered.containsKey(mediaUrl.hash())) {
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continue loop;
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}
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hash2UrlMap.put(ASCII.String(mediaUrl.hash()), mediaUrl);
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}
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}
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final List<DigestURL> urlsToIndex = new ArrayList<DigestURL>();
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loop: for (final Map.Entry<String, DigestURL> entry: hash2UrlMap.entrySet()) {
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final DigestURL messageUrl = entry.getValue();
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HarvestProcess harvestProcess = sb.getHarvestProcess(ASCII.String(messageUrl.hash()));
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if (harvestProcess != null) {
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continue loop;
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}
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urlsToIndex.add(messageUrl);
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RSSLoader.indexTriggered.insertIfAbsent(messageUrl.hash(), new Date());
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}
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sb.addToIndex(urlsToIndex, null, null, collections, true);
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}
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if (rss != null && post.containsKey("indexAllItemContent")) {
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record_api = true;
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final RSSFeed feed = rss.getFeed();
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RSSLoader.indexAllRssFeed(sb, url, feed, collections);
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}
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if (record_api && rss != null && rss.getFeed() != null && rss.getFeed().getChannel() != null) {
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// record API action
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RSSLoader.recordAPI(sb, post.get(WorkTables.TABLE_API_COL_APICALL_PK, null), url, rss.getFeed(), repeat_time, repeat_unit);
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}
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// show items from rss
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if (rss != null) {
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prop.put("showitems", 1);
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final RSSFeed feed = rss.getFeed();
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final RSSMessage channel = feed.getChannel();
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prop.putHTML("showitems_title", channel == null ? "" : channel.getTitle());
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String author = channel == null ? "" : channel.getAuthor();
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if (author == null || author.isEmpty()) author = channel == null ? "" : channel.getCopyright();
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Date pubDate = channel == null ? null : channel.getPubDate();
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prop.putHTML("showitems_author", author == null ? "" : author);
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prop.putHTML("showitems_description", channel == null ? "" : channel.getDescriptions().toString());
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prop.putHTML("showitems_language", channel == null ? "" : channel.getLanguage());
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prop.putHTML("showitems_date", (pubDate == null) ? "" : DateFormat.getDateTimeInstance().format(pubDate));
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prop.putHTML("showitems_ttl", channel == null ? "" : channel.getTTL());
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prop.put("showitems_docs", feed.size()); // number of documents
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int i = 0;
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for (final Hit item: feed) {
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DigestURL link = null;
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final String linkStr = item.getLink();
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if(StringUtils.isNotBlank(linkStr)) {
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/* Link element is optional in RSS 2.0 and Atom */
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try {
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link = new DigestURL(linkStr);
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} catch (final MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "Malformed feed item link URL : " + linkStr);
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}
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}
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DigestURL enclosure = null;
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final String enclosureStr = item.getEnclosure();
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if(StringUtils.isNotBlank(enclosureStr)) {
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try {
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enclosure = new DigestURL(enclosureStr);
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} catch (final MalformedURLException e) {
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ConcurrentLog.warn("Load_RSS", "Malformed feed item enclosure URL : " + enclosureStr);
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}
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}
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if(link == null) {
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/* No link in this feed item : we use the enclosure media URL as the main link */
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link = enclosure;
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}
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author = item.getAuthor();
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if (author == null) {
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author = item.getCopyright();
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}
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pubDate = item.getPubDate();
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if(link != null && StringUtils.isNotEmpty(item.getGuid())) {
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HarvestProcess harvestProcess = sb.getHarvestProcess(ASCII.String(link.hash()));
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prop.put("showitems_item_" + i + "_hasLink", true);
|
|
prop.putHTML("showitems_item_" + i + "_hasLink_link", link.toNormalform(true));
|
|
final int state = harvestProcess != null ? 2 : RSSLoader.indexTriggered.containsKey(link.hash()) ? 1 : 0;
|
|
prop.put("showitems_item_" + i + "_state", state);
|
|
prop.put("showitems_item_" + i + "_indexable", state == 0);
|
|
prop.put("showitems_item_" + i + "_indexable_count", i);
|
|
prop.putHTML("showitems_item_" + i + "_indexable_inputValue", (link == enclosure ? CHECKBOX_MEDIA_ITEM_PREFIX : CHECKBOX_ITEM_PREFIX) + item.getGuid());
|
|
} else {
|
|
prop.put("showitems_item_" + i + "_state", 0);
|
|
prop.put("showitems_item_" + i + "_indexable", false);
|
|
prop.put("showitems_item_" + i + "_hasLink", false);
|
|
}
|
|
prop.putHTML("showitems_item_" + i + "_author", author == null ? "" : author);
|
|
prop.putHTML("showitems_item_" + i + "_title", item.getTitle());
|
|
prop.putHTML("showitems_item_" + i + "_description", item.getDescriptions().toString());
|
|
prop.put("showitems_item_" + i + "_defaultMediaDesc", false);
|
|
prop.putHTML("showitems_item_" + i + "_language", item.getLanguage());
|
|
prop.putHTML("showitems_item_" + i + "_date", (pubDate == null) ? "" : DateFormat.getDateTimeInstance().format(pubDate));
|
|
i++;
|
|
|
|
if(enclosure != null && enclosure != link && StringUtils.isNotEmpty(item.getGuid())) {
|
|
HarvestProcess harvestProcess = sb.getHarvestProcess(ASCII.String(enclosure.hash()));
|
|
|
|
prop.put("showitems_item_" + i + "_hasLink", true);
|
|
prop.putHTML("showitems_item_" + i + "_hasLink_link", enclosure.toNormalform(true));
|
|
final int state = harvestProcess != null ? 2 : RSSLoader.indexTriggered.containsKey(enclosure.hash()) ? 1 : 0;
|
|
prop.put("showitems_item_" + i + "_state", state);
|
|
prop.put("showitems_item_" + i + "_indexable", state == 0);
|
|
prop.put("showitems_item_" + i + "_indexable_count", i);
|
|
prop.putHTML("showitems_item_" + i + "_indexable_inputValue", "media_" + item.getGuid());
|
|
prop.putHTML("showitems_item_" + i + "_author", "");
|
|
prop.putHTML("showitems_item_" + i + "_title", item.getTitle());
|
|
prop.putHTML("showitems_item_" + i + "_description", "");
|
|
/* Description is already used for the main item link, use here a default one */
|
|
prop.put("showitems_item_" + i + "_defaultMediaDesc", true);
|
|
prop.putHTML("showitems_item_" + i + "_language", "");
|
|
prop.putHTML("showitems_item_" + i + "_date", "");
|
|
i++;
|
|
}
|
|
}
|
|
prop.put("showitems_item", i);
|
|
prop.put("showitems_num", i);
|
|
prop.putHTML("showitems_rss", url.toNormalform(true));
|
|
if (i > 0) {
|
|
prop.put("showload", 1);
|
|
prop.put("showload_rss", url.toNormalform(true));
|
|
}
|
|
}
|
|
|
|
return prop;
|
|
}
|
|
|
|
}
|