private void testInMemory() {
for (int j = 0; j < 1; j++) {
MVStore s = openStore(null);
// s.setMaxPageSize(10);
// long t;
int len = 100;
// TreeMap<Integer, String> m = new TreeMap<Integer, String>();
// HashMap<Integer, String> m = New.hashMap();
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
// t = System.currentTimeMillis();
for (int i = 0; i < len; i++) {
assertNull(m.put(i, "Hello World"));
}
// System.out.println("put: " + (System.currentTimeMillis() - t));
// t = System.currentTimeMillis();
for (int i = 0; i < len; i++) {
assertEquals("Hello World", m.get(i));
}
// System.out.println("get: " + (System.currentTimeMillis() - t));
// t = System.currentTimeMillis();
for (int i = 0; i < len; i++) {
assertEquals("Hello World", m.remove(i));
}
// System.out.println("remove: " + (System.currentTimeMillis() - t));
// System.out.println();
assertEquals(null, m.get(0));
assertEquals(0, m.size());
s.close();
}
}
private void testSimple() {
String fileName = getBaseDir() + "/testSimple.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 3; i++) {
m.put(i, "hello " + i);
}
s.store();
assertEquals("hello 0", m.remove(0));
assertNull(m.get(0));
for (int i = 1; i < 3; i++) {
assertEquals("hello " + i, m.get(i));
}
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
assertNull(m.get(0));
for (int i = 1; i < 3; i++) {
assertEquals("hello " + i, m.get(i));
}
s.close();
}
private void testReuseSpace() {
String fileName = getBaseDir() + "/testReuseSpace.h3";
FileUtils.delete(fileName);
long initialLength = 0;
for (int j = 0; j < 20; j++) {
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 10; i++) {
m.put(i, "Hello");
}
s.store();
for (int i = 0; i < 10; i++) {
assertEquals("Hello", m.get(i));
assertEquals("Hello", m.remove(i));
}
s.store();
s.close();
long len = FileUtils.size(fileName);
if (initialLength == 0) {
initialLength = len;
} else {
assertTrue(len <= initialLength * 2);
}
}
}
private void testIterateOverChanges() {
String fileName = getBaseDir() + "/testIterate.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
s.setMaxPageSize(6);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 100; i++) {
m.put(i, "Hi");
}
s.incrementVersion();
s.store();
for (int i = 20; i < 40; i++) {
assertEquals("Hi", m.put(i, "Hello"));
}
long old = s.getCurrentVersion();
s.incrementVersion();
for (int i = 10; i < 15; i++) {
m.put(i, "Hallo");
}
m.put(50, "Hallo");
for (int i = 90; i < 93; i++) {
assertEquals("Hi", m.remove(i));
}
assertEquals(null, m.put(100, "Hallo"));
Iterator<Integer> it = m.changeIterator(old);
ArrayList<Integer> list = New.arrayList();
while (it.hasNext()) {
list.add(it.next());
}
assertEquals("[10, 11, 12, 13, 14, 50, 100, 90, 91, 92]", list.toString());
s.close();
}
private void testBtreeStore() {
String fileName = getBaseDir() + "/testBtreeStore.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
s.close();
s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
int count = 2000;
// Profiler p = new Profiler();
// p.startCollecting();
// long t = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
assertNull(m.put(i, "hello " + i));
assertEquals("hello " + i, m.get(i));
}
// System.out.println("put: " + (System.currentTimeMillis() - t));
// System.out.println(p.getTop(5));
// p = new Profiler();
// p.startCollecting();
// t = System.currentTimeMillis();
s.store();
// System.out.println("store: " + (System.currentTimeMillis() - t));
// System.out.println(p.getTop(5));
assertEquals("hello 0", m.remove(0));
assertNull(m.get(0));
for (int i = 1; i < count; i++) {
assertEquals("hello " + i, m.get(i));
}
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
assertNull(m.get(0));
for (int i = 1; i < count; i++) {
assertEquals("hello " + i, m.get(i));
}
for (int i = 1; i < count; i++) {
m.remove(i);
}
s.store();
assertNull(m.get(0));
for (int i = 0; i < count; i++) {
assertNull(m.get(i));
}
s.close();
}
private void testVersion() {
String fileName = getBaseDir() + "/testVersion.h3";
FileUtils.delete(fileName);
MVStore s;
s = openStore(fileName);
MVMap<String, String> m;
s = openStore(fileName);
m = s.openMap("data", String.class, String.class);
long first = s.getCurrentVersion();
s.incrementVersion();
m.put("1", "Hello");
m.put("2", "World");
for (int i = 10; i < 20; i++) {
m.put("" + i, "data");
}
long old = s.getCurrentVersion();
s.incrementVersion();
m.put("1", "Hallo");
m.put("2", "Welt");
MVMap<String, String> mFirst;
mFirst = m.openVersion(first);
assertEquals(0, mFirst.size());
MVMap<String, String> mOld;
assertEquals("Hallo", m.get("1"));
assertEquals("Welt", m.get("2"));
mOld = m.openVersion(old);
assertEquals("Hello", mOld.get("1"));
assertEquals("World", mOld.get("2"));
assertTrue(mOld.isReadOnly());
s.getCurrentVersion();
s.setRetainChunk(0);
long old2 = s.store();
// the old version is still available
assertEquals("Hello", mOld.get("1"));
assertEquals("World", mOld.get("2"));
m.put("1", "Hi");
assertEquals("Welt", m.remove("2"));
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", String.class, String.class);
assertEquals("Hi", m.get("1"));
assertEquals(null, m.get("2"));
mOld = m.openVersion(old2);
assertEquals("Hallo", mOld.get("1"));
assertEquals("Welt", mOld.get("2"));
s.close();
}
private void testExample() {
String fileName = getBaseDir() + "/testExample.h3";
FileUtils.delete(fileName);
// open the store (in-memory if fileName is null)
MVStore s = MVStore.open(fileName);
// create/get the map "data"
// the String.class, String.class will be optional later
MVMap<String, String> map = s.openMap("data", String.class, String.class);
// add some data
map.put("1", "Hello");
map.put("2", "World");
// get the current version, for later use
long oldVersion = s.getCurrentVersion();
// from now on, the old version is read-only
s.incrementVersion();
// more changes, in the new version
// changes can be rolled back if required
// changes always go into 'head' (the newest version)
map.put("1", "Hi");
map.remove("2");
// access the old data (before incrementVersion)
MVMap<String, String> oldMap = map.openVersion(oldVersion);
// store the newest data to disk
s.store();
// print the old version (can be done
// concurrently with further modifications)
// this will print Hello World
// System.out.println(oldMap.get("1"));
// System.out.println(oldMap.get("2"));
oldMap.close();
// print the newest version ("Hi")
// System.out.println(map.get("1"));
// close the store - this doesn't write to disk
s.close();
}
private void testDefragment() {
String fileName = getBaseDir() + "/testDefragment.h3";
FileUtils.delete(fileName);
long initialLength = 0;
for (int j = 0; j < 20; j++) {
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 10; i++) {
m.put(j + i, "Hello " + j);
}
s.store();
s.compact(80);
s.close();
long len = FileUtils.size(fileName);
// System.out.println(" len:" + len);
if (initialLength == 0) {
initialLength = len;
} else {
assertTrue("initial: " + initialLength + " len: " + len, len <= initialLength * 3);
}
}
// long len = FileUtils.size(fileName);
// System.out.println("len0: " + len);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 100; i++) {
m.remove(i);
}
s.store();
s.compact(80);
s.close();
// len = FileUtils.size(fileName);
// System.out.println("len1: " + len);
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
s.compact(80);
s.close();
// len = FileUtils.size(fileName);
// System.out.println("len2: " + len);
}
private void testRandom() {
String fileName = getBaseDir() + "/testRandom.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
MVMap<Integer, Integer> m = s.openMap("data", Integer.class, Integer.class);
TreeMap<Integer, Integer> map = new TreeMap<Integer, Integer>();
Random r = new Random(1);
int operationCount = 1000;
int maxValue = 30;
Integer expected, got;
for (int i = 0; i < operationCount; i++) {
int k = r.nextInt(maxValue);
int v = r.nextInt();
boolean compareAll;
switch (r.nextInt(3)) {
case 0:
log(i + ": put " + k + " = " + v);
expected = map.put(k, v);
got = m.put(k, v);
if (expected == null) {
assertNull(got);
} else {
assertEquals(expected, got);
}
compareAll = true;
break;
case 1:
log(i + ": remove " + k);
expected = map.remove(k);
got = m.remove(k);
if (expected == null) {
assertNull(got);
} else {
assertEquals(expected, got);
}
compareAll = true;
break;
default:
Integer a = map.get(k);
Integer b = m.get(k);
if (a == null || b == null) {
assertTrue(a == b);
} else {
assertEquals(a.intValue(), b.intValue());
}
compareAll = false;
break;
}
if (compareAll) {
Iterator<Integer> it = m.keyIterator(null);
Iterator<Integer> itExpected = map.keySet().iterator();
while (itExpected.hasNext()) {
assertTrue(it.hasNext());
expected = itExpected.next();
got = it.next();
assertEquals(expected, got);
}
assertFalse(it.hasNext());
}
}
s.close();
}