mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-19 00:01:41 +02:00
added kelondroRowCollection and kelondroRowSet which
shall replace kelondroCollection git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2220 6c8d7289-2bf4-0310-a012-ef5d649a1542
This commit is contained in:
orbiter
parent
ed2cb040d1
commit
8f0c1a240a
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@ -1,11 +1,13 @@
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// kelondroCollection.java
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// -----------------------
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// part of The Kelondro Database
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2006
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// created: 12.01.2006
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// kelondroCollection.java
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// (C) 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
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// first published 12.01.2006 on http://www.anomic.de
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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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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@ -19,25 +21,6 @@
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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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package de.anomic.kelondro;
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413
source/de/anomic/kelondro/kelondroRowCollection.java
Normal file
413
source/de/anomic/kelondro/kelondroRowCollection.java
Normal file
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@ -0,0 +1,413 @@
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// kelondroRowCollection.java
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// (C) 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
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// first published 12.01.2006 on http://www.anomic.de
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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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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package de.anomic.kelondro;
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import java.util.Iterator;
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import java.util.Random;
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public class kelondroRowCollection {
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protected byte[] chunkcache;
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protected int chunkcount;
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protected long lastTimeRead, lastTimeWrote;
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protected kelondroRow rowdef;
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protected int sortBound;
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protected kelondroOrder sortOrder;
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protected int sortColumn;
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public kelondroRowCollection(kelondroRow rowdef) {
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this(rowdef, 0);
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}
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public kelondroRowCollection(kelondroRow rowdef, int objectCount) {
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this.rowdef = rowdef;
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this.chunkcache = new byte[objectCount * rowdef.objectsize()];
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this.chunkcount = 0;
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this.sortColumn = 0;
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this.sortOrder = null;
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this.sortBound = 0;
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}
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public kelondroRowCollection(kelondroRow rowdef, int objectCount, byte[] cache) {
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this.rowdef = rowdef;
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this.chunkcache = cache;
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this.chunkcount = objectCount;
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this.sortColumn = 0;
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this.sortOrder = null;
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this.sortBound = 0;
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}
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private void ensureSize(int elements) {
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int needed = elements * rowdef.objectsize();
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if (chunkcache.length >= needed) return;
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byte[] newChunkcache = new byte[needed * 2];
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System.arraycopy(chunkcache, 0, newChunkcache, 0, chunkcache.length);
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chunkcache = newChunkcache;
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newChunkcache = null;
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}
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public void trim() {
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synchronized (chunkcache) {
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int needed = chunkcount * rowdef.objectsize();
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if (chunkcache.length == needed) return;
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byte[] newChunkcache = new byte[needed];
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System.arraycopy(chunkcache, 0, newChunkcache, 0, newChunkcache.length);
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chunkcache = newChunkcache;
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newChunkcache = null;
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}
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}
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public long lastRead() {
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return lastTimeRead;
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}
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public long lastWrote() {
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return lastTimeWrote;
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}
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public kelondroRow.Entry get(int index) {
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assert (index < chunkcount);
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byte[] a = new byte[rowdef.objectsize()];
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synchronized (chunkcache) {
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System.arraycopy(chunkcache, index * rowdef.objectsize(), a, 0, rowdef.objectsize());
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}
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return rowdef.newEntry(a);
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}
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public void set(int index, kelondroRow.Entry a) {
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set(index, a.bytes(), 0, a.bytes().length);
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}
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public void set(int index, byte[] a, int astart, int alength) {
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assert (index < this.chunkcount);
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int l = Math.min(rowdef.objectsize(), Math.min(alength, a.length - astart));
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synchronized (chunkcache) {
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System.arraycopy(a, astart, chunkcache, index * rowdef.objectsize(), l);
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}
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this.lastTimeWrote = System.currentTimeMillis();
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}
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public void add(kelondroRow.Entry a) {
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add(a.bytes(), 0, a.bytes().length);
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}
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public void add(byte[] a, int astart, int alength) {
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int l = Math.min(rowdef.objectsize(), Math.min(alength, a.length - astart));
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synchronized (chunkcache) {
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ensureSize(chunkcount + 1);
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System.arraycopy(a, 0, chunkcache, rowdef.objectsize() * chunkcount, l);
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chunkcount++;
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}
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this.lastTimeWrote = System.currentTimeMillis();
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}
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public void addAll(kelondroRowCollection c) {
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assert(rowdef.objectsize() >= c.rowdef.objectsize());
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synchronized(chunkcache) {
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ensureSize(chunkcount + c.size());
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}
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Iterator i = c.elements();
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byte[] b;
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while (i.hasNext()) {
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b = (byte[]) i.next();
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add(b, 0, b.length);
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}
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}
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public void remove(int p) {
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assert ((p >= 0) && (p < chunkcount) && (chunkcount > 0));
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synchronized (chunkcache) {
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System.arraycopy(chunkcache, (p + 1) * rowdef.objectsize(), chunkcache, p * rowdef.objectsize(), (chunkcount - p - 1) * rowdef.objectsize());
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chunkcount--;
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if (p < sortBound) sortBound--;
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}
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this.lastTimeWrote = System.currentTimeMillis();
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}
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public void removeOne() {
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if (chunkcount == 0) return;
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if (chunkcount == sortBound) sortBound--;
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chunkcount--;
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this.lastTimeWrote = System.currentTimeMillis();
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}
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public void clear() {
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this.chunkcache = new byte[0];
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this.chunkcount = 0;
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this.sortBound = 0;
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}
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public int size() {
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return chunkcount;
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}
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public Iterator elements() { // iterates byte[] - objects
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return new chunkIterator();
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}
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public class chunkIterator implements Iterator {
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int c = 0;
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public chunkIterator() {
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c = 0;
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}
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public boolean hasNext() {
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return c < chunkcount;
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}
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public Object next() {
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byte[] chunk = new byte[rowdef.objectsize()];
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System.arraycopy(chunkcache, c * rowdef.objectsize(), chunk, 0, rowdef.objectsize());
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c++;
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return chunk;
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}
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public void remove() {
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c--;
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System.arraycopy(chunkcache, (c + 1) * rowdef.objectsize(), chunkcache, c * rowdef.objectsize(), (chunkcount - c - 1) * rowdef.objectsize());
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chunkcount--;
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}
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}
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public void sort(kelondroOrder newOrder, int newColumn) {
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if ((this.sortOrder == null) ||
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(!(this.sortOrder.signature().equals(newOrder.signature()))) ||
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(newColumn != this.sortColumn)) {
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this.sortOrder = newOrder;
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this.sortBound = 0;
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this.sortColumn = newColumn;
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}
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sort();
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}
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public void sort() {
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assert (this.sortOrder != null);
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if (this.sortBound == this.chunkcount) return; // this is already sorted
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//System.out.println("SORT(chunkcount=" + this.chunkcount + ", sortbound=" + this.sortbound + ")");
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if (this.sortBound > 1) {
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qsort(0, this.sortBound, this.chunkcount);
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} else {
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qsort(0, this.chunkcount);
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}
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this.sortBound = this.chunkcount;
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}
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private void qsort(int L, int S, int R) {
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//System.out.println("QSORT: chunkcache.length=" + chunkcache.length + ", chunksize=" + chunksize + ", L=" + L + ", S=" + S + ", R=" + R);
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assert (S <= R);
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if (L >= R - 1) return;
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if (S >= R) return;
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if (R - L < 20) {
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isort(L, R);
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return;
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}
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int p = L + ((S - L) / 2);
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int ps = p;
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int q = S;
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int qs = q;
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int pivot = p;
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while (q < R) {
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if (compare(pivot, q) < 1) {
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q++;
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} else {
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pivot = swap(p, q, pivot);
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p++;
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q++;
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}
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}
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if ((ps - L) <= ((p - L) / 2)) qsort(L, p); else qsort(L, ps, p);
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if ((qs - p) <= ((R - p) / 2)) qsort(p, R); else qsort(p, qs, R);
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}
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private void qsort(int L, int R) {
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//System.out.println("QSORT: chunkcache.length=" + chunkcache.length + ", L=" + L + "/" + new String(this.chunkcache, L * this.rowdef.objectsize(), this.rowdef.width(0)) + ", R=" + R + "/" + new String(this.chunkcache, (R - 1) * this.rowdef.objectsize(), this.rowdef.width(0)));
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/*
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if ((L == 190) && (R == 258)) {
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for (int i = L; i < R; i++) {
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System.out.print(new String(this.chunkcache, L * this.chunksize, this.chunksize) + ", ");
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}
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System.out.println();
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}
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*/
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if (L >= R - 1) return;
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if (R - L < 20) {
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isort(L, R);
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return;
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}
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int i = L;
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int j = R - 1;
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int pivot = (i + j) / 2;
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//System.out.println("Pivot=" + pivot + "/" + new String(this.chunkcache, pivot * this.rowdef.objectsize(), this.rowdef.width(0)));
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while (i <= j) {
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while (compare(pivot, i) == 1) i++; // chunkAt[i] < keybuffer
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while (compare(pivot, j) == -1) j--; // chunkAt[j] > keybuffer
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//if (L == 6693) System.out.println(i + ", " + j);
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if (i <= j) {
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pivot = swap(i, j, pivot);
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i++;
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j--;
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}
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}
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//if (L == 6693) System.out.println(i);
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qsort(L, i);
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qsort(i, R);
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}
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private void isort(int L, int R) {
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for (int i = L + 1; i < R; i++)
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for (int j = i; j > L && compare(j - 1, j) > 0; j--)
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swap(j, j - 1, 0);
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}
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private int swap(int i, int j, int p) {
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if (i == j) return p;
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if (this.chunkcount * this.rowdef.objectsize() < this.chunkcache.length) {
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// there is space in the chunkcache that we can use as buffer
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System.arraycopy(chunkcache, this.rowdef.objectsize() * i, chunkcache, chunkcache.length - this.rowdef.objectsize(), this.rowdef.objectsize());
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System.arraycopy(chunkcache, this.rowdef.objectsize() *j , chunkcache, this.rowdef.objectsize() * i, this.rowdef.objectsize());
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System.arraycopy(chunkcache, chunkcache.length - this.rowdef.objectsize(), chunkcache, this.rowdef.objectsize() * j, this.rowdef.objectsize());
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} else {
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// allocate a chunk to use as buffer
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byte[] a = new byte[this.rowdef.objectsize()];
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System.arraycopy(chunkcache, this.rowdef.objectsize() * i, a, 0, this.rowdef.objectsize());
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System.arraycopy(chunkcache, this.rowdef.objectsize() * j , chunkcache, this.rowdef.objectsize() * i, this.rowdef.objectsize());
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System.arraycopy(a, 0, chunkcache, this.rowdef.objectsize() * j, this.rowdef.objectsize());
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}
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if (i == p) return j; else if (j == p) return i; else return p;
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}
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public void uniq() {
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assert (this.sortOrder != null);
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// removes double-occurrences of chunks
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// this works only if the collection was ordered with sort before
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synchronized (chunkcache) {
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if (chunkcount <= 1) return;
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int i = 0;
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while (i < chunkcount - 1) {
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if (compare(i, i + 1) == 0) {
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//System.out.println("DOUBLE: " + new String(this.chunkcache, this.chunksize * i, this.chunksize));
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remove(i);
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} else {
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i++;
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}
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}
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}
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}
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public String toString() {
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StringBuffer s = new StringBuffer();
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Iterator i = elements();
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if (i.hasNext()) s.append(new String((byte[]) i.next()).trim());
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while (i.hasNext()) s.append(", " + new String((byte[]) i.next()).trim());
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return new String(s);
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}
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public byte[] toByteArray() {
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return this.chunkcache;
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}
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private int compare(int i, int j) {
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assert (i < chunkcount);
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assert (j < chunkcount);
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if (i == j) return 0;
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int keylength = this.rowdef.width(this.sortColumn);
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int colstart = this.rowdef.colstart[this.sortColumn];
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int c = this.sortOrder.compare(
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chunkcache,
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i * this.rowdef.objectsize() + colstart,
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keylength,
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chunkcache,
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j * this.rowdef.objectsize() + colstart,
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keylength);
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/*
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System.out.println("COMPARE(" +
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new String(this.chunkcache, i * this.rowdef.objectsize(), this.rowdef.width(0)) +
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", " +
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new String(this.chunkcache, j * this.rowdef.objectsize(), this.rowdef.width(0)) +
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")=" + c);
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*/
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return c;
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}
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public static void main(String[] args) {
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String[] test = { "eins", "zwei", "drei", "vier", "fuenf", "sechs", "sieben", "acht", "neun", "zehn" };
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kelondroRowCollection c = new kelondroRowCollection(new kelondroRow(new int[]{10, 3}));
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for (int i = 0; i < test.length; i++) c.add(test[i].getBytes(), 0, 10);
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for (int i = 0; i < test.length; i++) c.add(test[i].getBytes(), 0, 10);
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c.sort(kelondroNaturalOrder.naturalOrder, 0);
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c.remove(1);
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Iterator i = c.elements();
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String s;
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System.out.print("INPUT-ITERATOR: ");
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while (i.hasNext()) {
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s = new String((byte[]) i.next()).trim();
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System.out.print(s + ", ");
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if (s.equals("drei")) i.remove();
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}
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System.out.println("");
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System.out.println("INPUT-TOSTRING: " + c.toString());
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c.sort();
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System.out.println("SORTED : " + c.toString());
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c.uniq();
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System.out.println("UNIQ : " + c.toString());
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c.trim();
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System.out.println("TRIM : " + c.toString());
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// second test
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c = new kelondroRowCollection(new kelondroRow(new int[]{10, 3}));
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Random rand = new Random(0);
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long start = System.currentTimeMillis();
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long t;
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String w;
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for (long k = 0; k < 60000; k++) {
|
||||
t = System.currentTimeMillis();
|
||||
w = "a" + Long.toString(rand.nextLong());
|
||||
c.add(w.getBytes(), 0, 10);
|
||||
if (k % 10000 == 0)
|
||||
System.out.println("added " + k + " entries in " +
|
||||
((t - start) / 1000) + " seconds, " +
|
||||
(((t - start) > 1000) ? (k / ((t - start) / 1000)) : k) +
|
||||
" entries/second, size = " + c.size());
|
||||
}
|
||||
System.out.println("bevore sort: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
c.sort(kelondroNaturalOrder.naturalOrder, 0);
|
||||
System.out.println("after sort: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
c.uniq();
|
||||
System.out.println("after uniq: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
System.out.println("RESULT SIZE: " + c.size());
|
||||
System.out.println();
|
||||
|
||||
System.out.println("RESULT SIZE: " + c.size());
|
||||
}
|
||||
|
||||
}
|
||||
228
source/de/anomic/kelondro/kelondroRowSet.java
Normal file
228
source/de/anomic/kelondro/kelondroRowSet.java
Normal file
|
|
@ -0,0 +1,228 @@
|
|||
// kelondroRowSet.java
|
||||
// (C) 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
|
||||
// first published 20.06.2006 on http://www.anomic.de
|
||||
//
|
||||
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
|
||||
// $LastChangedRevision: 1986 $
|
||||
// $LastChangedBy: orbiter $
|
||||
//
|
||||
// LICENSE
|
||||
//
|
||||
// This program 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 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program 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 this program; if not, write to the Free Software
|
||||
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
package de.anomic.kelondro;
|
||||
|
||||
import java.util.Iterator;
|
||||
import java.util.Random;
|
||||
|
||||
public class kelondroRowSet extends kelondroRowCollection {
|
||||
|
||||
public kelondroRowSet(kelondroRow rowdef) {
|
||||
super(rowdef);
|
||||
|
||||
}
|
||||
|
||||
public kelondroRowSet(kelondroRow rowdef, int objectCount) {
|
||||
super(rowdef, objectCount);
|
||||
|
||||
}
|
||||
|
||||
public kelondroRow.Entry get(byte[] key) {
|
||||
return get(key, 0, key.length);
|
||||
}
|
||||
|
||||
public kelondroRow.Entry get(byte[] key, int astart, int alength) {
|
||||
synchronized (chunkcache) {
|
||||
int i = find(key, astart, alength);
|
||||
if (i >= 0) return get(i);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
public kelondroRow.Entry remove(byte[] a) {
|
||||
return remove(a, 0, a.length);
|
||||
}
|
||||
|
||||
public kelondroRow.Entry remove(byte[] a, int astart, int alength) {
|
||||
// the byte[] a may be shorter than the chunksize
|
||||
if (chunkcount == 0) return null;
|
||||
kelondroRow.Entry b = null;
|
||||
synchronized(chunkcache) {
|
||||
int p = find(a, astart, alength);
|
||||
if (p < 0) return null;
|
||||
b = get(p);
|
||||
remove(p);
|
||||
}
|
||||
return b;
|
||||
}
|
||||
|
||||
public void removeAll(kelondroRowCollection c) {
|
||||
Iterator i = c.elements();
|
||||
byte[] b;
|
||||
while (i.hasNext()) {
|
||||
b = (byte[]) i.next();
|
||||
remove(b, 0, b.length);
|
||||
}
|
||||
}
|
||||
|
||||
public kelondroOrder getOrdering() {
|
||||
return this.sortOrder;
|
||||
}
|
||||
|
||||
public void setOrdering(kelondroOrder newOrder, int newColumn) {
|
||||
if ((this.sortOrder == null) ||
|
||||
(!(this.sortOrder.signature().equals(newOrder.signature()))) ||
|
||||
(newColumn != this.sortColumn)) {
|
||||
this.sortOrder = newOrder;
|
||||
this.sortBound = 0;
|
||||
this.sortColumn = newColumn;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
protected int find(byte[] a, int astart, int alength) {
|
||||
// returns the chunknumber; -1 if not found
|
||||
|
||||
if (this.sortOrder == null) return iterativeSearch(a, astart, alength);
|
||||
|
||||
// check if a re-sorting make sense
|
||||
if ((this.chunkcount - this.sortBound) > 90) sort();
|
||||
|
||||
// first try to find in sorted area
|
||||
int p = binarySearch(a, astart, alength);
|
||||
if (p >= 0) return p;
|
||||
|
||||
// then find in unsorted area
|
||||
return iterativeSearch(a, astart, alength);
|
||||
|
||||
}
|
||||
|
||||
private int iterativeSearch(byte[] key, int astart, int alength) {
|
||||
// returns the chunknumber
|
||||
|
||||
if (this.sortOrder == null) {
|
||||
for (int i = this.sortBound; i < this.chunkcount; i++) {
|
||||
if (match(key, astart, alength, i)) return i;
|
||||
}
|
||||
return -1;
|
||||
} else {
|
||||
for (int i = this.sortBound; i < this.chunkcount; i++) {
|
||||
if (compare(key, astart, alength, i) == 0) return i;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
private int binarySearch(byte[] key, int astart, int alength) {
|
||||
assert (this.sortOrder != null);
|
||||
int l = 0;
|
||||
int rbound = this.sortBound;
|
||||
int p = 0;
|
||||
int d;
|
||||
while (l < rbound) {
|
||||
p = l + ((rbound - l) >> 1);
|
||||
d = compare(key, astart, alength, p);
|
||||
if (d == 0) return p;
|
||||
else if (d < 0) rbound = p;
|
||||
else l = p + 1;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
private int compare(byte[] a, int astart, int alength, int chunknumber) {
|
||||
assert (chunknumber < chunkcount);
|
||||
int l = Math.min(this.rowdef.width(0), Math.min(a.length - astart, alength));
|
||||
return this.sortOrder.compare(a, astart, l, chunkcache, chunknumber * this.rowdef.objectsize(), l);
|
||||
}
|
||||
|
||||
private boolean match(byte[] a, int astart, int alength, int chunknumber) {
|
||||
if (chunknumber >= chunkcount) return false;
|
||||
int i = 0;
|
||||
int p = chunknumber * this.rowdef.objectsize();
|
||||
final int len = Math.min(this.rowdef.width(0), Math.min(alength, a.length - astart));
|
||||
while (i < len) if (a[astart + i++] != chunkcache[p++]) return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
String[] test = { "eins", "zwei", "drei", "vier", "fuenf", "sechs", "sieben", "acht", "neun", "zehn" };
|
||||
kelondroRowSet c = new kelondroRowSet(new kelondroRow(new int[]{10, 3}));
|
||||
c.setOrdering(kelondroNaturalOrder.naturalOrder, 0);
|
||||
for (int i = 0; i < test.length; i++) c.add(test[i].getBytes(), 0, 10);
|
||||
for (int i = 0; i < test.length; i++) c.add(test[i].getBytes(), 0, 10);
|
||||
c.sort();
|
||||
c.remove("fuenf".getBytes(), 0, 5);
|
||||
Iterator i = c.elements();
|
||||
String s;
|
||||
System.out.print("INPUT-ITERATOR: ");
|
||||
while (i.hasNext()) {
|
||||
s = new String((byte[]) i.next()).trim();
|
||||
System.out.print(s + ", ");
|
||||
if (s.equals("drei")) i.remove();
|
||||
}
|
||||
System.out.println("");
|
||||
System.out.println("INPUT-TOSTRING: " + c.toString());
|
||||
c.sort();
|
||||
System.out.println("SORTED : " + c.toString());
|
||||
c.uniq();
|
||||
System.out.println("UNIQ : " + c.toString());
|
||||
c.trim();
|
||||
System.out.println("TRIM : " + c.toString());
|
||||
|
||||
// second test
|
||||
c = new kelondroRowSet(new kelondroRow(new int[]{10, 3}));
|
||||
c.setOrdering(kelondroNaturalOrder.naturalOrder, 0);
|
||||
Random rand = new Random(0);
|
||||
long start = System.currentTimeMillis();
|
||||
long t, d = 0;
|
||||
String w;
|
||||
for (long k = 0; k < 60000; k++) {
|
||||
t = System.currentTimeMillis();
|
||||
w = "a" + Long.toString(rand.nextLong());
|
||||
c.add(w.getBytes(), 0, 10);
|
||||
if (k % 10000 == 0)
|
||||
System.out.println("added " + k + " entries in " +
|
||||
((t - start) / 1000) + " seconds, " +
|
||||
(((t - start) > 1000) ? (k / ((t - start) / 1000)) : k) +
|
||||
" entries/second, size = " + c.size());
|
||||
}
|
||||
System.out.println("bevore sort: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
c.sort();
|
||||
System.out.println("after sort: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
c.uniq();
|
||||
System.out.println("after uniq: " + ((System.currentTimeMillis() - start) / 1000) + " seconds");
|
||||
System.out.println("RESULT SIZE: " + c.size());
|
||||
System.out.println();
|
||||
|
||||
// third test
|
||||
c = new kelondroRowSet(new kelondroRow(new int[]{10, 3}), 60000);
|
||||
c.setOrdering(kelondroNaturalOrder.naturalOrder, 0);
|
||||
rand = new Random(0);
|
||||
start = System.currentTimeMillis();
|
||||
d = 0;
|
||||
for (long k = 0; k < 60000; k++) {
|
||||
t = System.currentTimeMillis();
|
||||
w = "a" + Long.toString(rand.nextLong());
|
||||
if (c.get(w.getBytes(), 0, 10) == null) c.add(w.getBytes(), 0, 10); else d++;
|
||||
if (k % 10000 == 0)
|
||||
System.out.println("added " + k + " entries in " +
|
||||
((t - start) / 1000) + " seconds, " +
|
||||
(((t - start) > 1000) ? (k / ((t - start) / 1000)) : k) +
|
||||
" entries/second, " + d + " double, size = " + c.size() +
|
||||
", sum = " + (c.size() + d));
|
||||
}
|
||||
System.out.println("RESULT SIZE: " + c.size());
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user