Files
KeePassDX/app/src/main/java/com/kunzisoft/keepass/database/EntrySearchV4.java
2018-07-04 13:19:06 +02:00

102 lines
3.1 KiB
Java

/*
* Copyright 2018 Jeremy Jamet / Kunzisoft.
*
* This file is part of KeePass DX.
*
* KeePass DX is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* KeePass DX 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with KeePass DX. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.kunzisoft.keepass.database;
import com.kunzisoft.keepass.utils.StrUtil;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class EntrySearchV4 {
private PwGroupV4 root;
public EntrySearchV4(PwGroupV4 root) {
this.root = root;
}
public void searchEntries(SearchParameters sp, List<PwEntryV4> listStorage) {
if (sp == null) { return; }
if (listStorage == null) { return; }
List<String> terms = StrUtil.splitSearchTerms(sp.searchString);
if (terms.size() <= 1 || sp.regularExpression) {
searchEntriesSingle(sp, listStorage);
return;
}
// Search longest term first
Comparator<String> stringLengthComparator = (lhs, rhs) -> lhs.length() - rhs.length();
Collections.sort(terms, stringLengthComparator);
String fullSearch = sp.searchString;
List<PwEntryV4> pg = root.getChildEntries();
for (int i = 0; i < terms.size(); i ++) {
List<PwEntryV4> pgNew = new ArrayList<>();
sp.searchString = terms.get(i);
boolean negate = false;
if (sp.searchString.startsWith("-")) {
sp.searchString = sp.searchString.substring(1);
negate = sp.searchString.length() > 0;
}
if (!searchEntriesSingle(sp, pgNew)) {
pg = null;
break;
}
List<PwEntryV4> complement = new ArrayList<>();
if (negate) {
for (PwEntryV4 entry: pg) {
if (!pgNew.contains(entry)) {
complement.add(entry);
}
}
pg = complement;
}
else {
pg = pgNew;
}
}
if (pg != null) {
listStorage.addAll(pg);
}
sp.searchString = fullSearch;
}
private boolean searchEntriesSingle(SearchParameters spIn, List<PwEntryV4> listStorage) {
SearchParameters sp = (SearchParameters) spIn.clone();
EntryHandler<PwEntryV4> eh;
if (sp.searchString.length() <= 0) {
eh = new EntrySearchHandlerAll<>(sp, listStorage);
} else {
eh = new EntrySearchHandlerV4(sp, listStorage);
}
return root.preOrderTraverseTree(null, eh);
}
}