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Added result paging support.

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This commit is contained in:
esaunders 2017-01-03 12:47:16 -05:00
parent 681699467d
commit c1f326775a
1 changed files with 19 additions and 11 deletions
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32
KeywordSearch/src/org/sleuthkit/autopsy/keywordsearch/RegexQuery.java
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@ -31,10 +31,12 @@ import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang.StringUtils;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrQuery.SortClause;
import org.apache.solr.client.solrj.SolrRequest;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.params.CursorMarkParams;
import org.openide.util.NbBundle;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.autopsy.coreutils.MessageNotifyUtil;
@ -74,7 +76,7 @@ final class RegexQuery implements KeywordSearchQuery {
private final Keyword keyword;
private String field = Server.Schema.CONTENT_STR.toString();
private final String keywordString;
static final private int MAX_RESULTS = 20000;
static final private int MAX_RESULTS = 5;
private boolean escaped;
private String escapedQuery;
@ -163,8 +165,6 @@ final class RegexQuery implements KeywordSearchQuery {
+ (queryStringContainsWildcardPrefix ? "" : ".*") + getQueryString()
+ (queryStringContainsWildcardSuffix ? "" : ".*") + "/");
solrQuery.setRows(MAX_RESULTS);
// Set the fields we want to have returned by the query.
if (KeywordSearchSettings.getShowSnippets()) {
solrQuery.setFields(Server.Schema.CONTENT_STR.toString(), Server.Schema.ID.toString());
@ -175,18 +175,21 @@ final class RegexQuery implements KeywordSearchQuery {
.map(KeywordQueryFilter::toString)
.forEach(solrQuery::addFilterQuery);
int start = 0;
SolrDocumentList resultList = null;
// cycle through results in sets of MAX_RESULTS
while (resultList == null || start < resultList.getNumFound()) {
solrQuery.setStart(start);
solrQuery.setRows(MAX_RESULTS);
// Setting the sort order is necessary for cursor based paging to work.
solrQuery.setSort(SortClause.asc(Server.Schema.ID.toString()));
String cursorMark = CursorMarkParams.CURSOR_MARK_START;
SolrDocumentList resultList = null;
boolean allResultsProcessed = false;
while (!allResultsProcessed) {
try {
final QueryResponse response = solrServer.query(solrQuery, SolrRequest.METHOD.POST);
solrQuery.set(CursorMarkParams.CURSOR_MARK_PARAM, cursorMark);
QueryResponse response = solrServer.query(solrQuery, SolrRequest.METHOD.POST);
resultList = response.getResults();
for (SolrDocument resultDoc : resultList) {
try {
List<KeywordHit> keywordHits = createKeywordHits(resultDoc);
for (KeywordHit hit : keywordHits) {
@ -196,13 +199,18 @@ final class RegexQuery implements KeywordSearchQuery {
//
}
}
String nextCursorMark = response.getNextCursorMark();
if (cursorMark.equals(nextCursorMark)) {
allResultsProcessed = true;
}
cursorMark = nextCursorMark;
} catch (KeywordSearchModuleException ex) {
LOGGER.log(Level.SEVERE, "Error executing Lucene Solr Query: " + keywordString, ex); //NON-NLS
MessageNotifyUtil.Notify.error(NbBundle.getMessage(Server.class, "Server.query.exception.msg", keywordString), ex.getCause().getMessage());
}
start = start + MAX_RESULTS;
}
for (Keyword k : hitsMultMap.keySet()) {
results.addResult(k, hitsMultMap.get(k));
}