/**
* HostBrowser
* Copyright 2012 by Michael Peter Christen, mc@yacy.net, Frankfurt am Main, Germany
* First released 27.09.2012 at http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.concurrent.BlockingQueue;
import org.apache.solr.common.SolrDocument;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.document.MultiProtocolURI;
import net.yacy.cora.document.UTF8;
import net.yacy.cora.federate.solr.FailType;
import net.yacy.cora.federate.solr.connector.AbstractSolrConnector;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.sorting.ClusteredScoreMap;
import net.yacy.cora.sorting.ReversibleScoreMap;
import net.yacy.cora.storage.HandleSet;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.crawler.HarvestProcess;
import net.yacy.crawler.data.NoticedURL.StackType;
import net.yacy.crawler.retrieval.Request;
import net.yacy.kelondro.data.meta.DigestURI;
import net.yacy.kelondro.data.meta.URIMetadataNode;
import net.yacy.peers.graphics.WebStructureGraph.StructureEntry;
import net.yacy.search.Switchboard;
import net.yacy.search.index.Fulltext;
import net.yacy.search.index.Segment.ReferenceReport;
import net.yacy.search.index.Segment.ReferenceReportCache;
import net.yacy.search.schema.CollectionSchema;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
public class HostBrowser {
final static long TIMEOUT = 10000L;
public static enum StoreType {
LINK, INDEX, EXCLUDED, FAILED;
}
@SuppressWarnings("deprecation")
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
// return variable that accumulates replacements
final Switchboard sb = (Switchboard) env;
Fulltext fulltext = sb.index.fulltext();
final boolean admin = sb.verifyAuthentication(header);
final boolean autoload = admin && sb.getConfigBool("browser.autoload", true);
final boolean load4everyone = sb.getConfigBool("browser.load4everyone", false);
final boolean loadRight = autoload || load4everyone; // add config later
final boolean searchAllowed = sb.getConfigBool("publicSearchpage", true) || admin;
final serverObjects prop = new serverObjects();
// set default values
prop.put("path", "");
prop.put("result", "");
prop.put("hosts", 0);
prop.put("files", 0);
prop.put("admin", admin ? 1 : 0);
if (admin) { // show top nav to admins
prop.put("topmenu",1);
} else { // for other respect setting in Search Design Configuration
prop.put("topmenu", sb.getConfigBool("publicTopmenu", true) ? 1 : 0);
}
if (!searchAllowed) {
prop.put("result", "You are not allowed to use this page. Please ask an administrator for permission.");
prop.putNum("ucount", 0);
return prop;
}
String path = post == null ? "" : post.get("path", "").trim();
sb.index.fulltext().commit(true);
if (post == null || env == null) {
prop.putNum("ucount", fulltext.collectionSize());
return prop;
}
int p = path.lastIndexOf('/');
if (p < 0 && path.length() > 0) path = path + "/"; else if (p > 7) path = path.substring(0, p + 1); // the search path shall always end with "/"
if (path.length() > 0 && (
!path.startsWith("http://") &&
!path.startsWith("https://") &&
!path.startsWith("ftp://") &&
!path.startsWith("smb://") &&
!path.startsWith("file://"))) { path = "http://" + path; }
prop.putHTML("path", path);
prop.put("delete", admin && path.length() > 0 ? 1 : 0);
DigestURI pathURI = null;
try {pathURI = new DigestURI(path);} catch (final MalformedURLException e) {}
String load = post.get("load", "");
boolean wait = false;
if (loadRight && autoload && path.length() != 0 && pathURI != null && load.length() == 0 && !sb.index.exists(ASCII.String(pathURI.hash()))) {
// in case that the url does not exist and loading is wanted turn this request into a loading request
load = path;
wait = true;
}
if (load.length() > 0 && loadRight) {
// stack URL
DigestURI url;
if (sb.crawlStacker.size() > 2) wait = false;
try {
url = new DigestURI(load);
String reasonString = sb.crawlStacker.stackCrawl(new Request(
sb.peers.mySeed().hash.getBytes(),
url, null, load, new Date(),
sb.crawler.defaultProxyProfile.handle(),
0, 0, 0, 0
));
prop.put("result", reasonString == null ? ("added url to indexer: " + load) : ("not indexed url '" + load + "': " + reasonString));
if (wait) for (int i = 0; i < 30; i++) {
if (sb.index.exists(ASCII.String(url.hash()))) break;
try {Thread.sleep(100);} catch (final InterruptedException e) {}
}
} catch (final MalformedURLException e) {
prop.put("result", "bad url '" + load + "'");
}
}
if (admin && post.containsKey("deleteLoadErrors")) {
try {
fulltext.getDefaultConnector().deleteByQuery("-" + CollectionSchema.httpstatus_i.getSolrFieldName() + ":200 AND "
+ CollectionSchema.httpstatus_i.getSolrFieldName() + ":[* TO *]"); // make sure field exists
ConcurrentLog.info ("HostBrowser:", "delete documents with httpstatus_i <> 200");
fulltext.getDefaultConnector().deleteByQuery(CollectionSchema.failtype_s.getSolrFieldName() + ":\"" + FailType.fail.name() + "\"" );
ConcurrentLog.info ("HostBrowser:", "delete documents with failtype_s = fail");
fulltext.getDefaultConnector().deleteByQuery(CollectionSchema.failtype_s.getSolrFieldName() + ":\"" + FailType.excl.name() + "\"" );
ConcurrentLog.info ("HostBrowser:", "delete documents with failtype_s = excl");
prop.putNum("ucount", fulltext.collectionSize());
return prop;
} catch (final IOException ex) {
ConcurrentLog.logException(ex);
}
}
if (post.containsKey("hosts")) {
// generate host list
try {
boolean onlyCrawling = "crawling".equals(post.get("hosts", ""));
boolean onlyErrors = "error".equals(post.get("hosts", ""));
int maxcount = admin ? 2 * 3 * 2 * 5 * 7 * 2 * 3 : 360; // which makes nice matrixes for 2, 3, 4, 5, 6, 7, 8, 9 rows/colums
// collect hosts from index
ReversibleScoreMap<String> hostscore = fulltext.getDefaultConnector().getFacets(AbstractSolrConnector.CATCHALL_TERM, maxcount, CollectionSchema.host_s.getSolrFieldName()).get(CollectionSchema.host_s.getSolrFieldName());
if (hostscore == null) hostscore = new ClusteredScoreMap<String>();
// collect hosts from crawler
final Map<String, Integer[]> crawler = (admin) ? sb.crawlQueues.noticeURL.getDomainStackHosts(StackType.LOCAL, sb.robots) : new HashMap<String, Integer[]>();
for (Map.Entry<String, Integer[]> host: crawler.entrySet()) {
hostscore.inc(host.getKey(), host.getValue()[0]);
}
// collect the errorurls
Map<String, ReversibleScoreMap<String>> exclfacets = admin ? fulltext.getDefaultConnector().getFacets(CollectionSchema.failtype_s.getSolrFieldName() + ":" + FailType.excl.name(), maxcount, CollectionSchema.host_s.getSolrFieldName()) : null;
ReversibleScoreMap<String> exclscore = exclfacets == null ? new ClusteredScoreMap<String>() : exclfacets.get(CollectionSchema.host_s.getSolrFieldName());
Map<String, ReversibleScoreMap<String>> failfacets = admin ? fulltext.getDefaultConnector().getFacets(CollectionSchema.failtype_s.getSolrFieldName() + ":" + FailType.fail.name(), maxcount, CollectionSchema.host_s.getSolrFieldName()) : null;
ReversibleScoreMap<String> failscore = failfacets == null ? new ClusteredScoreMap<String>() : failfacets.get(CollectionSchema.host_s.getSolrFieldName());
int c = 0;
Iterator<String> i = hostscore.keys(false);
String host;
while (i.hasNext() && c < maxcount) {
host = i.next();
prop.put("hosts_list_" + c + "_host", host);
boolean inCrawler = crawler.containsKey(host);
int exclcount = exclscore.get(host);
int failcount = failscore.get(host);
int errors = exclcount + failcount;
prop.put("hosts_list_" + c + "_count", hostscore.get(host) - errors);
prop.put("hosts_list_" + c + "_crawler", inCrawler ? 1 : 0);
if (inCrawler) prop.put("hosts_list_" + c + "_crawler_pending", crawler.get(host)[0]);
prop.put("hosts_list_" + c + "_errors", errors > 0 ? 1 : 0);
if (errors > 0) {
prop.put("hosts_list_" + c + "_errors_exclcount", exclcount);
prop.put("hosts_list_" + c + "_errors_failcount", failcount);
}
prop.put("hosts_list_" + c + "_type", inCrawler ? 2 : errors > 0 ? 1 : 0);
if (onlyCrawling) {
if (inCrawler) c++;
} else if (onlyErrors) {
if (errors > 0) c++;
} else {
c++;
}
}
prop.put("hosts_list", c);
prop.put("hosts", 1);
} catch (final IOException e) {
ConcurrentLog.logException(e);
}
}
if (path.length() > 0) {
boolean delete = false;
if (admin && post.containsKey("delete")) {
// delete the complete path!! That includes everything that matches with this prefix.
delete = true;
}
int facetcount=post.getInt("facetcount", 0);
boolean complete = post.getBoolean("complete");
if (complete) { // we want only root paths for complete lists
p = path.indexOf('/', 10);
if (p > 0) path = path.substring(0, p + 1);
}
prop.put("files_complete", complete ? 1 : 0);
prop.put("files_complete_path", path);
p = path.substring(0, path.length() - 1).lastIndexOf('/');
if (p < 8) {
prop.put("files_root", 1);
} else {
prop.put("files_root", 0);
prop.put("files_root_path", path.substring(0, p + 1));
}
try {
// generate file list from path
DigestURI uri = new DigestURI(path);
String host = uri.getHost();
prop.putHTML("outbound_host", host);
if (admin) prop.putHTML("outbound_admin_host", host); //used for WebStructurePicture_p link
prop.putHTML("inbound_host", host);
String hosthash = ASCII.String(uri.hash(), 6, 6);
String[] pathparts = uri.getPaths();
// get all files for a specific host from the index
StringBuilder q = new StringBuilder();
q.append(CollectionSchema.host_s.getSolrFieldName()).append(':').append(host);
if (pathparts.length > 0 && pathparts[0].length() > 0) {
for (String pe: pathparts) {
if (pe.length() > 0) q.append(" AND ").append(CollectionSchema.url_paths_sxt.getSolrFieldName()).append(":\"").append(pe).append('\"');
}
} else {
if (facetcount > 1000 || post.containsKey("nepr")) {
q.append(" AND ").append(CollectionSchema.url_paths_sxt.getSolrFieldName()).append(":[* TO *]");
}
}
BlockingQueue<SolrDocument> docs = fulltext.getDefaultConnector().concurrentDocumentsByQuery(q.toString(), 0, 100000, TIMEOUT, 100,
CollectionSchema.id.getSolrFieldName(),
CollectionSchema.sku.getSolrFieldName(),
CollectionSchema.failreason_s.getSolrFieldName(),
CollectionSchema.failtype_s.getSolrFieldName(),
CollectionSchema.inboundlinks_protocol_sxt.getSolrFieldName(),
CollectionSchema.inboundlinks_urlstub_sxt.getSolrFieldName(),
CollectionSchema.outboundlinks_protocol_sxt.getSolrFieldName(),
CollectionSchema.outboundlinks_urlstub_sxt.getSolrFieldName(),
CollectionSchema.clickdepth_i.getSolrFieldName(),
CollectionSchema.references_i.getSolrFieldName(),
CollectionSchema.references_internal_i.getSolrFieldName(),
CollectionSchema.references_external_i.getSolrFieldName(),
CollectionSchema.references_exthosts_i.getSolrFieldName(),
CollectionSchema.cr_host_chance_d.getSolrFieldName(),
CollectionSchema.cr_host_norm_i.getSolrFieldName()
);
SolrDocument doc;
Set<String> storedDocs = new HashSet<String>();
Map<String, FailType> errorDocs = new HashMap<String, FailType>();
Set<String> inboundLinks = new HashSet<String>();
Map<String, ReversibleScoreMap<String>> outboundHosts = new HashMap<String, ReversibleScoreMap<String>>();
Map<String, InfoCacheEntry> infoCache = new HashMap<String, InfoCacheEntry>();
int hostsize = 0;
final List<String> deleteIDs = new ArrayList<String>();
long timeoutList = System.currentTimeMillis() + TIMEOUT;
long timeoutReferences = System.currentTimeMillis() + 3000;
ReferenceReportCache rrCache = sb.index.getReferenceReportCache();
while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) {
String u = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName());
String errortype = (String) doc.getFieldValue(CollectionSchema.failtype_s.getSolrFieldName());
FailType error = errortype == null ? null : FailType.valueOf(errortype);
String ids = (String) doc.getFieldValue(CollectionSchema.id.getSolrFieldName());
infoCache.put(ids, new InfoCacheEntry(sb.index.fulltext(), rrCache, doc, ids, System.currentTimeMillis() < timeoutReferences));
if (u.startsWith(path)) {
if (delete) {
deleteIDs.add(ids);
} else {
if (error == null) storedDocs.add(u); else if (admin) errorDocs.put(u, error);
}
} else if (complete) {
if (error == null) storedDocs.add(u); else if (admin) errorDocs.put(u, error);
}
if ((complete || u.startsWith(path)) && !storedDocs.contains(u)) inboundLinks.add(u); // add the current link
if (error == null) {
hostsize++;
// collect inboundlinks to browse the host
Iterator<String> links = URIMetadataNode.getLinks(doc, true);
while (links.hasNext()) {
u = links.next();
if ((complete || u.startsWith(path)) && !storedDocs.contains(u)) inboundLinks.add(u);
}
// collect referrer links
links = URIMetadataNode.getLinks(doc, false);
while (links.hasNext()) {
u = links.next();
try {
MultiProtocolURI mu = new MultiProtocolURI(u);
if (mu.getHost() != null) {
ReversibleScoreMap<String> lks = outboundHosts.get(mu.getHost());
if (lks == null) {
lks = new ClusteredScoreMap<String>(UTF8.insensitiveUTF8Comparator);
outboundHosts.put(mu.getHost(), lks);
}
lks.set(u, u.length());
}
} catch (final MalformedURLException e) {}
}
}
if (System.currentTimeMillis() > timeoutList) break;
}
if (deleteIDs.size() > 0) sb.remove(deleteIDs);
// collect from crawler
List<Request> domainStackReferences = (admin) ? sb.crawlQueues.noticeURL.getDomainStackReferences(StackType.LOCAL, host, 1000, 3000) : new ArrayList<Request>(0);
Set<String> loadingLinks = new HashSet<String>();
for (Request crawlEntry: domainStackReferences) loadingLinks.add(crawlEntry.url().toNormalform(true));
// now combine all lists into one
Map<String, StoreType> files = new HashMap<String, StoreType>();
for (String u: storedDocs) files.put(u, StoreType.INDEX);
for (Map.Entry<String, FailType> e: errorDocs.entrySet()) files.put(e.getKey(), e.getValue() == FailType.fail ? StoreType.FAILED : StoreType.EXCLUDED);
for (String u: inboundLinks) if (!files.containsKey(u)) files.put(u, StoreType.LINK);
for (String u: loadingLinks) if (u.startsWith(path) && !files.containsKey(u)) files.put(u, StoreType.LINK);
ConcurrentLog.info("HostBrowser", "collected " + files.size() + " urls for path " + path);
// distinguish files and folders
Map<String, Object> list = new TreeMap<String, Object>(); // a directory list; if object is boolean, its a file; if its a int[], then its a folder
int pl = path.length();
String file;
for (Map.Entry<String, StoreType> entry: files.entrySet()) {
if (entry.getKey().length() < pl) continue; // this is not inside the path
if (!entry.getKey().startsWith(path)) continue;
file = entry.getKey().substring(pl);
StoreType type = entry.getValue();
p = file.indexOf('/');
if (p < 0) {
// this is a file
list.put(entry.getKey(), type); // StoreType value: this is a file; true -> file is in index; false -> not in index, maybe in crawler
} else {
// this is a directory path or a file in a subdirectory
String remainingPath = file.substring(0, p + 1);
if (complete && remainingPath.indexOf('.') > 0) {
list.put(entry.getKey(), type); // StoreType value: this is a file
} else {
String dir = path + remainingPath;
Object c = list.get(dir);
if (c == null) {
int[] linkedStoredIncrawlerError = new int[]{0,0,0,0};
if (type == StoreType.LINK) linkedStoredIncrawlerError[0]++;
if (type == StoreType.INDEX) linkedStoredIncrawlerError[1]++;
if (loadingLinks.contains(entry.getKey())) linkedStoredIncrawlerError[2]++;
if (errorDocs.containsKey(entry.getKey())) linkedStoredIncrawlerError[3]++;
list.put(dir, linkedStoredIncrawlerError);
} else if (c instanceof int[]) {
if (type == StoreType.LINK) ((int[]) c)[0]++;
if (type == StoreType.INDEX) ((int[]) c)[1]++;
if (loadingLinks.contains(entry.getKey())) ((int[]) c)[2]++;
if (errorDocs.containsKey(entry.getKey())) ((int[]) c)[3]++;
}
}
}
}
int maxcount = 1000;
int c = 0;
// first list only folders
int filecounter = 0;
for (Map.Entry<String, Object> entry: list.entrySet()) {
if ((entry.getValue() instanceof StoreType)) {
filecounter++;
} else {
// this is a folder
prop.put("files_list_" + c + "_type", 1);
prop.put("files_list_" + c + "_type_url", entry.getKey());
int linked = ((int[]) entry.getValue())[0];
int stored = ((int[]) entry.getValue())[1];
int crawler = ((int[]) entry.getValue())[2];
int error = ((int[]) entry.getValue())[3];
prop.put("files_list_" + c + "_type_stored", stored);
prop.put("files_list_" + c + "_type_linked", linked);
prop.put("files_list_" + c + "_type_pendingVisible", crawler > 0 ? 1 : 0);
prop.put("files_list_" + c + "_type_pending", crawler);
prop.put("files_list_" + c + "_type_excludedVisible", 0);
prop.put("files_list_" + c + "_type_excluded", 0);
prop.put("files_list_" + c + "_type_failedVisible", error > 0 ? 1 : 0);
prop.put("files_list_" + c + "_type_failed", error);
if (++c >= maxcount) break;
}
}
// then list files
for (Map.Entry<String, Object> entry: list.entrySet()) {
if (entry.getValue() instanceof StoreType) {
// this is a file
prop.put("files_list_" + c + "_type", 0);
prop.put("files_list_" + c + "_type_url", entry.getKey());
StoreType type = (StoreType) entry.getValue();
try {uri = new DigestURI(entry.getKey());} catch (final MalformedURLException e) {uri = null;}
HarvestProcess process = uri == null ? null : sb.crawlQueues.exists(uri.hash());
boolean loading = load.equals(entry.getKey()) || (process != null && process != HarvestProcess.ERRORS);
boolean error = process == HarvestProcess.ERRORS || type == StoreType.EXCLUDED || type == StoreType.FAILED;
boolean dc = type != StoreType.INDEX && !error && !loading && list.containsKey(entry.getKey() + "/");
if (!dc) {
prop.put("files_list_" + c + "_type_stored", type == StoreType.INDEX ? 1 : error ? 3 : loading ? 2 : 0 /*linked*/);
if (type == StoreType.INDEX) {
String ids = ASCII.String(uri.hash());
InfoCacheEntry ice = infoCache.get(ids);
prop.put("files_list_" + c + "_type_stored_comment", ice.toString()); // ice.toString() contains html, therefore do not use putHTML here
}
prop.put("files_list_" + c + "_type_stored_load", loadRight ? 1 : 0);
if (error) {
FailType failType = errorDocs.get(entry.getKey());
if (failType == null) {
// maybe this is only in the errorURL
prop.put("files_list_" + c + "_type_stored_error", process == HarvestProcess.ERRORS ? sb.crawlQueues.errorURL.get(uri.hash()).anycause() : "unknown error");
} else {
prop.put("files_list_" + c + "_type_stored_error", failType == FailType.excl ? "excluded from indexing" : "load fail");
}
}
if (loadRight) {
prop.put("files_list_" + c + "_type_stored_load_url", entry.getKey());
prop.put("files_list_" + c + "_type_stored_load_path", path);
}
if (++c >= maxcount) break;
}
}
}
prop.put("files_list", c);
prop.putHTML("files_path", path);
prop.put("files_hostsize", hostsize);
prop.put("files_subpathloadsize", storedDocs.size());
prop.put("files_subpathdetectedsize", filecounter - storedDocs.size());
prop.put("files", 1);
// generate inbound-links table
StructureEntry struct = sb.webStructure.incomingReferences(hosthash);
if (struct != null && struct.references.size() > 0) {
maxcount = 200;
ReversibleScoreMap<String> score = new ClusteredScoreMap<String>(UTF8.insensitiveUTF8Comparator);
for (Map.Entry<String, Integer> entry: struct.references.entrySet()) score.set(entry.getKey(), entry.getValue());
c = 0;
Iterator<String> i = score.keys(false);
while (i.hasNext() && c < maxcount) {
host = i.next();
prop.put("inbound_list_" + c + "_host", sb.webStructure.hostHash2hostName(host));
prop.put("inbound_list_" + c + "_count", score.get(host));
c++;
}
prop.put("inbound_list", c);
prop.put("inbound", 1);
} else {
prop.put("inbound", 0);
}
// generate outbound-links table
if (outboundHosts.size() > 0) {
maxcount = 200;
ReversibleScoreMap<String> score = new ClusteredScoreMap<String>(UTF8.insensitiveUTF8Comparator);
for (Map.Entry<String, ReversibleScoreMap<String>> entry: outboundHosts.entrySet()) score.set(entry.getKey(), entry.getValue().size());
c = 0;
Iterator<String> i = score.keys(false);
while (i.hasNext() && c < maxcount) {
host = i.next();
prop.put("outbound_list_" + c + "_host", host);
prop.put("outbound_list_" + c + "_count", score.get(host));
prop.put("outbound_list_" + c + "_link", outboundHosts.get(host).getMinKey());
c++;
}
prop.put("outbound_list", c);
prop.put("outbound", 1);
} else {
prop.put("outbound", 0);
}
} catch (final Throwable e) {
ConcurrentLog.logException(e);
}
}
// return rewrite properties
prop.putNum("ucount", fulltext.collectionSize());
return prop;
}
public static final class InfoCacheEntry {
public Integer cr_n;
public Double cr_c;
public int clickdepth, references, references_internal, references_external, references_exthosts;
public List<String> references_internal_urls, references_external_urls;
public InfoCacheEntry(final Fulltext fulltext, final ReferenceReportCache rrCache, final SolrDocument doc, final String urlhash, boolean fetchReferences) {
this.cr_c = (Double) doc.getFieldValue(CollectionSchema.cr_host_chance_d.getSolrFieldName());
this.cr_n = (Integer) doc.getFieldValue(CollectionSchema.cr_host_norm_i.getSolrFieldName());
Integer cd = (Integer) doc.getFieldValue(CollectionSchema.clickdepth_i.getSolrFieldName());
Integer rc = (Integer) doc.getFieldValue(CollectionSchema.references_i.getSolrFieldName());
Integer rc_internal = (Integer) doc.getFieldValue(CollectionSchema.references_internal_i.getSolrFieldName());
Integer rc_external = (Integer) doc.getFieldValue(CollectionSchema.references_external_i.getSolrFieldName());
Integer rc_exthosts = (Integer) doc.getFieldValue(CollectionSchema.references_exthosts_i.getSolrFieldName());
this.clickdepth = (cd == null || cd.intValue() < 0) ? 999 : cd.intValue();
this.references = (rc == null || rc.intValue() <= 0) ? 0 : rc.intValue();
this.references_internal = (rc_internal == null || rc_internal.intValue() <= 0) ? 0 : rc_internal.intValue();
// calculate the url reference list
this.references_internal_urls = new ArrayList<String>();
this.references_external_urls = new ArrayList<String>();
if (fetchReferences) {
// get the references from the citation index
try {
ReferenceReport rr = rrCache.getReferenceReport(ASCII.getBytes(urlhash), false);
List<String> internalIDs = new ArrayList<String>();
List<String> externalIDs = new ArrayList<String>();
HandleSet iids = rr.getInternallIDs();
for (byte[] b: iids) internalIDs.add(ASCII.String(b));
HandleSet eids = rr.getExternalIDs();
for (byte[] b: eids) externalIDs.add(ASCII.String(b));
// get all urls from the index and store them here
for (String id: internalIDs) {
if (id.equals(urlhash)) continue; // no self-references
DigestURI u = fulltext.getURL(ASCII.getBytes(id));
if (u != null) references_internal_urls.add(u.toNormalform(true));
}
for (String id: externalIDs) {
if (id.equals(urlhash)) continue; // no self-references
DigestURI u = fulltext.getURL(ASCII.getBytes(id));
if (u != null) references_external_urls.add(u.toNormalform(true));
}
} catch (final IOException e) {
}
}
this.references_external = (rc_external == null || rc_external.intValue() <= 0) ? 0 : rc_external.intValue();
this.references_exthosts = (rc_exthosts == null || rc_exthosts.intValue() <= 0) ? 0 : rc_exthosts.intValue();
}
public String toString() {
StringBuilder sbi = new StringBuilder();
int c = 0;
for (String s: references_internal_urls) {
sbi.append("<a href='").append("/HostBrowser.html?path=" + s).append("' target='_blank'><img src='env/grafics/i16.gif' alt='info' title='" + s + "' width='12' height='12'/></a>");
c++;
if (c % 80 == 0) sbi.append("<br/>");
}
if (sbi.length() > 0) sbi.insert(0, "<br/>internal referrer:</br>");
StringBuilder sbe = new StringBuilder();
c = 0;
for (String s: references_external_urls) {
sbe.append("<a href='").append("/HostBrowser.html?path=" + s).append("' target='_blank'><img src='env/grafics/i16.gif' alt='info' title='" + s + "' width='12' height='12'/></a>");
c++;
if (c % 80 == 0) sbe.append("<br/>");
}
if (sbe.length() > 0) sbe.insert(0, "<br/>external referrer:</br>");
return
(this.clickdepth >= 0 ?
"clickdepth: " + this.clickdepth :
"") +
(this.cr_c != null ? ", cr=" + (Math.round(this.cr_c * 1000.0d) / 1000.0d) : "") +
(this.cr_n != null ? ", crn=" + this.cr_n : "") +
(this.references >= 0 ?
", refs: " + this.references_exthosts + " hosts, " + this.references_external + " ext, " + this.references_internal + " int" + sbi.toString() + sbe.toString() :
"");
}
}
}