package net.yacy;
// test application
// shall be used to compare the kelondroDB with other databases
// with relevance to yacy-specific use cases
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.Iterator;
import java.util.Random;
import javax.imageio.ImageIO;
import net.yacy.cora.document.UTF8;
import net.yacy.kelondro.index.Index;
import net.yacy.kelondro.index.Row;
import net.yacy.kelondro.index.RowSet;
import net.yacy.kelondro.index.RowSpaceExceededException;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.order.Base64Order;
import net.yacy.kelondro.order.CloneableIterator;
import net.yacy.kelondro.order.NaturalOrder;
import net.yacy.kelondro.table.SQLTable;
import net.yacy.kelondro.table.SplitTable;
import net.yacy.kelondro.table.Table;
import net.yacy.kelondro.util.ByteBuffer;
import net.yacy.kelondro.util.MemoryControl;
import net.yacy.visualization.ChartPlotter;
public class dbtest {
public final static int keylength = 12;
public final static int valuelength = 223; // sum of all data length as defined in plasmaURL
private static final byte[] dummyvalue2 = new byte[valuelength];
static {
// fill the dummy value
for (int i = 0; i < valuelength; i++) dummyvalue2[i] = '-';
dummyvalue2[0] = '{';
dummyvalue2[valuelength - 1] = '}';
}
public static byte[] randomHash(final long r0, final long r1) {
// a long can have 64 bit, but a 12-byte hash can have 6 * 12 = 72 bits
// so we construct a generic Hash using two long values
final String s = (Base64Order.enhancedCoder.encodeLongSB(Math.abs(r0), 6).toString() +
Base64Order.enhancedCoder.encodeLongSB(Math.abs(r1), 6).toString());
return s.getBytes();
}
public static byte[] randomHash(final Random r) {
return randomHash(r.nextLong(), r.nextLong());
}
public final static class STEntry {
private final byte[] key;
private final byte[] value;
public STEntry(final long aSource) {
this.key = randomHash(aSource, aSource);
this.value = new byte[valuelength];
for (int i = 0; i < valuelength; i++) this.value[i] = 0;
final byte[] tempKey = String.valueOf(aSource).getBytes();
System.arraycopy(tempKey, 0, this.value, 0, tempKey.length);
}
public STEntry(final byte[] aKey, final byte[] aValue) {
this.key = aKey;
this.value = aValue;
}
public boolean isValid() {
final String s = UTF8.String(this.value).trim();
if (s.length() == 0) return false;
final long source = Long.parseLong(s);
return ByteBuffer.equals(this.key, randomHash(source, source));
}
public byte[] getKey() {
return this.key;
}
public byte[] getValue() {
return this.value;
}
@Override
public String toString() {
return UTF8.String(this.key) + "#" + UTF8.String(this.value);
}
}
public static abstract class STJob implements Runnable {
private final Index table_test, table_reference;
private final long source;
public STJob(final Index table_test, final Index table_reference, final long aSource) {
this.table_test = table_test;
this.table_reference = table_reference;
this.source = aSource;
}
public Index getTable_test() {
return this.table_test;
}
public Index getTable_reference() {
return this.table_reference;
}
public abstract void run();
public long getSource() {
return this.source;
}
}
public static final class WriteJob extends STJob {
public WriteJob(final Index table_test, final Index table_reference, final long aSource) {
super(table_test, table_reference, aSource);
}
public void run() {
final STEntry entry = new STEntry(this.getSource());
System.out.println("write: " + NaturalOrder.arrayList(entry.getKey(), 0, entry.getKey().length));
try {
getTable_test().put(getTable_test().row().newEntry(new byte[][] { entry.getKey(), entry.getValue() , entry.getValue() }));
if (getTable_reference() != null) getTable_reference().put(getTable_test().row().newEntry(new byte[][] { entry.getKey(), entry.getValue() , entry.getValue() }));
} catch (final IOException e) {
System.err.println(e);
Log.logException(e);
System.exit(0);
} catch (RowSpaceExceededException e) {
System.err.println(e);
Log.logException(e);
System.exit(0);
}
}
}
public static final class RemoveJob extends STJob {
public RemoveJob(final Index table_test, final Index table_reference, final long aSource) {
super(table_test, table_reference, aSource);
}
public void run() {
final STEntry entry = new STEntry(this.getSource());
System.out.println("remove: " + NaturalOrder.arrayList(entry.getKey(), 0, entry.getKey().length));
try {
getTable_test().remove(entry.getKey());
if (getTable_reference() != null) getTable_reference().delete(entry.getKey());
} catch (final IOException e) {
System.err.println(e);
Log.logException(e);
System.exit(0);
}
}
}
public static final class ReadJob extends STJob {
public ReadJob(final Index table_test, final Index table_reference, final long aSource) {
super(table_test, table_reference, aSource);
}
public void run() {
final STEntry entry = new STEntry(this.getSource());
try {
Row.Entry entryBytes = getTable_test().get(entry.getKey());
if (entryBytes != null) {
final STEntry dbEntry = new STEntry(entryBytes.getPrimaryKeyBytes(), entryBytes.getColBytes(1, true));
if (!dbEntry.isValid()) {
System.out.println("INVALID table_test: " + dbEntry);
} /* else {
System.out.println("_VALID_ table_test: " + dbEntry);
getTable().remove(entry.getKey(), true);
} */
}
if (getTable_reference() != null) {
entryBytes = getTable_reference().get(entry.getKey());
if (entryBytes != null) {
final STEntry dbEntry = new STEntry(entryBytes.getPrimaryKeyBytes(), entryBytes.getColBytes(1, true));
if (!dbEntry.isValid()) {
System.out.println("INVALID table_reference: " + dbEntry);
} /* else {
System.out.println("_VALID_ table_reference: " + dbEntry);
getTable().remove(entry.getKey(), true);
} */
}
}
} catch (final IOException e) {
System.err.println(e);
Log.logException(e);
System.exit(0);
}
}
}
public static Index selectTableType(final String dbe, final String tablename, final Row testRow) throws Exception {
if (dbe.equals("kelondroRowSet")) {
return new RowSet(testRow, 0);
}
if (dbe.equals("kelondroSplitTable")) {
final File tablepath = new File(tablename).getParentFile();
return new SplitTable(tablepath, new File(tablename).getName(), testRow, true, true);
}
if (dbe.equals("kelondroEcoTable")) {
return new Table(new File(tablename), testRow, 1000, 0, true, true);
}
if (dbe.equals("mysql")) {
return new SQLTable("mysql", testRow);
}
if (dbe.equals("pgsql")) {
return new SQLTable("pgsql", testRow);
}
return null;
}
public static boolean checkEquivalence(final Index test, final Index reference) throws IOException {
if (reference == null) return true;
if (test.size() == reference.size()) {
System.out.println("* Testing equivalence of test table to reference table, " + test.size() + " entries");
} else {
System.out.println("* Testing equivalence of test table to reference table: FAILED! the tables have different sizes: test.size() = " + test.size() + ", reference.size() = " + reference.size());
return false;
}
boolean eq = true;
Row.Entry test_entry, reference_entry;
Iterator<Row.Entry> i = test.rows();
System.out.println("* Testing now by enumeration over test table");
final long ts = System.currentTimeMillis();
while (i.hasNext()) {
test_entry = i.next();
reference_entry = reference.get(test_entry.getPrimaryKeyBytes());
if (!test_entry.equals(reference_entry)) {
System.out.println("* FAILED: test entry with key '" + UTF8.String(test_entry.getPrimaryKeyBytes()) + "' has no equivalent entry in reference");
eq = false;
}
}
i = reference.rows();
System.out.println("* Testing now by enumeration over reference table");
final long rs = System.currentTimeMillis();
while (i.hasNext()) {
reference_entry = i.next();
test_entry = test.get(reference_entry.getPrimaryKeyBytes());
if (!test_entry.equals(reference_entry)) {
System.out.println("* FAILED: reference entry with key '" + UTF8.String(test_entry.getPrimaryKeyBytes()) + "' has no equivalent entry in test");
eq = false;
}
}
System.out.println("* finished checkEquivalence; test-enumeration = " + ((rs - ts) / 1000) + " seconds, reference-enumeration = "+ ((System.currentTimeMillis() - rs) / 1000) + " seconds");
if (eq) System.out.println("* SUCCESS! the tables are equal."); else System.out.println("* FAILED! the tables are not equal.");
return eq;
}
public static void main(final String[] args) {
System.setProperty("java.awt.headless", "true");
System.out.println("*** YaCy Database Test");
// print out command line
boolean assertionenabled = false;
assert assertionenabled = true;
if (assertionenabled) System.out.println("*** Asserts are enabled"); else System.out.println("*** HINT: YOU SHOULD ENABLE ASSERTS! (include -ea in start arguments");
final long mb = MemoryControl.available() / 1024 / 1024;
System.out.println("*** RAM = " + mb + " MB");
System.out.print(">java " +
((assertionenabled) ? "-ea " : "") +
((mb > 100) ? ("-Xmx" + (mb + 11) + "m ") : " ") +
"-classpath classes dbtest ");
for (int i = 0; i < args.length; i++) System.out.print(args[i] + " ");
System.out.println();
// read command options
final String command = args[0]; // test command
final String dbe_test = args[1]; // the database engine that shall be tested
String dbe_reference = args[2]; // the reference database engine (may be null)
final String tablename_test = args[3]; // name of test-table
if (dbe_reference.toLowerCase().equals("null")) dbe_reference = null;
final String tablename_reference = (dbe_reference == null) ? null : (tablename_test + ".reference");
// start test
final long startup = System.currentTimeMillis();
try {
// create a memory profiler
final memprofiler profiler = new memprofiler(1024, 320, 120, new File(tablename_test + ".profile.png"));
profiler.start();
// create the database access
final Row testRow = new Row("byte[] key-" + keylength + ", byte[] dummy-" + keylength + ", value-" + valuelength, Base64Order.enhancedCoder);
final Index table_test = selectTableType(dbe_test, tablename_test, testRow);
final Index table_reference = (dbe_reference == null) ? null : selectTableType(dbe_reference, tablename_reference, testRow);
final long afterinit = System.currentTimeMillis();
System.out.println("Test for db-engine " + dbe_test + " started to create file " + tablename_test + " with test " + command);
// execute command
if (command.equals("create")) {
// do nothing, since opening of the database access must handle this
System.out.println("Database created");
}
if (command.equals("fill")) {
// fill database with random entries;
// args: <number-of-entries> <random-startpoint>
// example: java -ea -Xmx200m fill kelondroEcoTable kelondroFlexTable filldbtest 50000 0
final long count = Long.parseLong(args[4]);
final long randomstart = Long.parseLong(args[5]);
final Random random = new Random(randomstart);
byte[] key;
for (int i = 0; i < count; i++) {
key = randomHash(random);
table_test.put(testRow.newEntry(new byte[][]{key, key, dummyvalue2}));
if (table_reference != null) table_reference.put(testRow.newEntry(new byte[][]{key, key, dummyvalue2}));
if (i % 1000 == 0) {
System.out.println(i + " entries. ");
}
}
}
if (command.equals("read")) {
// read the database and compare with random entries;
// args: <number-of-entries> <random-startpoint>
final long count = Long.parseLong(args[4]);
final long randomstart = Long.parseLong(args[5]);
final Random random = new Random(randomstart);
Row.Entry entry;
byte[] key;
for (int i = 0; i < count; i++) {
key = randomHash(random);
entry = table_test.get(key);
if (entry == null)
System.out.println("missing value for entry " + UTF8.String(key) + " in test table");
else
if (!ByteBuffer.equals(entry.getColBytes(1, false), key)) System.out.println("wrong value for entry " + UTF8.String(key) + ": " + UTF8.String(entry.getColBytes(1, false)) + " in test table");
if (table_reference != null) {
entry = table_reference.get(key);
if (entry == null)
System.out.println("missing value for entry " + UTF8.String(key) + " in reference table");
else
if (!ByteBuffer.equals(entry.getColBytes(1, false), key)) System.out.println("wrong value for entry " + UTF8.String(key) + ": " + UTF8.String(entry.getColBytes(1, false)) + " in reference table");
}
if (i % 1000 == 0) {
System.out.println(i + " entries processed so far.");
}
}
}
if (command.equals("ramtest")) {
// fill database with random entries and delete them again;
// this is repeated without termination; after each loop
// the current ram is printed out
// args: <number-of-entries> <random-startpoint>
final long count = Long.parseLong(args[4]);
final long randomstart = Long.parseLong(args[5]);
byte[] key;
Random random;
long start, write, remove;
int loop = 0;
while (true) {
// write
random = new Random(randomstart);
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
key = randomHash(random);
table_test.put(table_test.row().newEntry(new byte[][]{key, key, dummyvalue2}));
}
write = System.currentTimeMillis() - start;
// delete
random = new Random(randomstart);
start = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
key = randomHash(random);
table_test.delete(key);
}
remove = System.currentTimeMillis() - start;
System.out.println("Loop " + loop + ": Write = " + write + ", Remove = " + remove);
System.out.println(" bevore GC: " +
"free = " + MemoryControl.free() +
", max = " + MemoryControl.maxMemory +
", total = " + MemoryControl.total());
System.gc();
System.out.println(" after GC: " +
"free = " + MemoryControl.free() +
", max = " + MemoryControl.maxMemory +
", total = " + MemoryControl.total());
loop++;
}
}
if (command.equals("list")) {
CloneableIterator<Row.Entry> i = null;
if (table_test instanceof SQLTable) i = ((SQLTable) table_test).rows();
if(i != null) {
Row.Entry row;
while (i.hasNext()) {
row = i.next();
for (int j = 0; j < row.columns(); j++) System.out.print(row.getColString(j) + ",");
System.out.println();
}
}
}
final long aftercommand = System.currentTimeMillis();
checkEquivalence(table_test, table_reference);
final long afterequiv = System.currentTimeMillis();
// final report
System.out.println("Database size = " + table_test.size() + " unique entries.");
// finally close the database/table
table_test.close();
if (table_reference != null) table_reference.close();
final long afterclose = System.currentTimeMillis();
System.out.println("Execution time: open=" + (afterinit - startup) +
", command=" + (aftercommand - afterinit) +
", equiv=" + (afterequiv - aftercommand) +
", close=" + (afterclose - afterequiv) +
", total=" + (afterclose - startup));
profiler.terminate();
} catch (final Exception e) {
Log.logException(e);
}
}
}
final class memprofiler extends Thread {
ChartPlotter memChart;
boolean run;
File outputFile;
long start;
public memprofiler(final int width, final int height, final int expectedTimeSeconds, final File outputFile) {
this.outputFile = outputFile;
final int expectedKilobytes = 20 * 1024;//(Runtime.getRuntime().totalMemory() / 1024);
memChart = new ChartPlotter(width, height, "FFFFFF", "000000", "000000", 50, 20, 20, 20, "MEMORY CHART FROM EXECUTION AT " + new Date(), null);
final int timescale = 10; // steps with each 10 seconds
final int memscale = 1024;
memChart.declareDimension(ChartPlotter.DIMENSION_BOTTOM, timescale, (width - 40) * timescale / expectedTimeSeconds, 0, "FFFFFF", "555555", "SECONDS");
memChart.declareDimension(ChartPlotter.DIMENSION_LEFT, memscale, (height - 40) * memscale / expectedKilobytes, 0, "FFFFFF", "555555", "KILOBYTES");
run = true;
start = System.currentTimeMillis();
}
@Override
public void run() {
try {
int seconds0 = 0, kilobytes0 = 0;
int seconds1 = 0, kilobytes1 = 0;
while (run) {
memChart.setColor("FF0000");
seconds1 = (int) ((System.currentTimeMillis() - start) / 1000);
kilobytes1 = (int) (MemoryControl.used() / 1024);
memChart.chartLine(ChartPlotter.DIMENSION_BOTTOM, ChartPlotter.DIMENSION_LEFT, seconds0, kilobytes0, seconds1, kilobytes1);
seconds0 = seconds1;
kilobytes0 = kilobytes1;
try {Thread.sleep(100);} catch (final InterruptedException e) {}
}
} catch (final Exception e) {
Log.logException(e);
}
ImageIO.setUseCache(false);
try {
ImageIO.write(memChart.getImage(), "png", outputFile);
} catch (final IOException e) {
// do noting
} catch (final Exception e) {
Log.logException(e);
}
}
public void terminate() {
run = false;
while (this.isAlive()) {
try {Thread.sleep(1000);} catch (final InterruptedException e) {}
}
}
}