package org.apache.bookkeeper.test;
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Random;
import java.util.Set;
import org.apache.bookkeeper.client.AsyncCallback.AddCallback;
import org.apache.bookkeeper.client.LedgerEntry;
import org.apache.bookkeeper.client.AsyncCallback.CloseCallback;
import org.apache.bookkeeper.client.AsyncCallback.CreateCallback;
import org.apache.bookkeeper.client.AsyncCallback.OpenCallback;
import org.apache.bookkeeper.client.LedgerHandle;
import org.apache.bookkeeper.client.AsyncCallback.ReadCallback;
import org.apache.bookkeeper.client.BookKeeper.DigestType;
import org.apache.bookkeeper.client.BKException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.junit.Before;
import org.junit.Test;
/**
* This test tests read and write, synchronous and asynchronous, strings and
* integers for a BookKeeper client. The test deployment uses a ZooKeeper server
* and three BookKeepers.
*
*/
public class AsyncLedgerOpsTest extends MultiLedgerManagerMultiDigestTestCase
implements AddCallback, ReadCallback, CreateCallback,
CloseCallback, OpenCallback {
static Logger LOG = LoggerFactory.getLogger(AsyncLedgerOpsTest.class);
DigestType digestType;
public AsyncLedgerOpsTest(String ledgerManagerFactory, DigestType digestType) {
super(3);
this.digestType = digestType;
// set ledger manager type
baseConf.setLedgerManagerFactoryClassName(ledgerManagerFactory);
baseClientConf.setLedgerManagerFactoryClassName(ledgerManagerFactory);
}
byte[] ledgerPassword = "aaa".getBytes();
LedgerHandle lh, lh2;
long ledgerId;
Enumeration<LedgerEntry> ls;
// test related variables
int numEntriesToWrite = 20;
int maxInt = 2147483647;
Random rng; // Random Number Generator
ArrayList<byte[]> entries; // generated entries
ArrayList<Integer> entriesSize;
// Synchronization
SyncObj sync;
Set<Object> syncObjs;
class SyncObj {
int counter;
boolean value;
public SyncObj() {
counter = 0;
value = false;
}
}
class ControlObj {
LedgerHandle lh;
void setLh(LedgerHandle lh) {
this.lh = lh;
}
LedgerHandle getLh() {
return lh;
}
}
@Test(timeout=60000)
public void testAsyncCreateClose() throws IOException, BKException {
try {
ControlObj ctx = new ControlObj();
synchronized (ctx) {
LOG.info("Going to create ledger asynchronously");
bkc.asyncCreateLedger(3, 2, digestType, ledgerPassword, this, ctx);
ctx.wait();
}
// bkc.initMessageDigest("SHA1");
LedgerHandle lh = ctx.getLh();
ledgerId = lh.getId();
LOG.info("Ledger ID: " + lh.getId());
for (int i = 0; i < numEntriesToWrite; i++) {
ByteBuffer entry = ByteBuffer.allocate(4);
entry.putInt(rng.nextInt(maxInt));
entry.position(0);
entries.add(entry.array());
entriesSize.add(entry.array().length);
lh.asyncAddEntry(entry.array(), this, sync);
}
// wait for all entries to be acknowledged
synchronized (sync) {
while (sync.counter < numEntriesToWrite) {
LOG.debug("Entries counter = " + sync.counter);
sync.wait();
}
}
LOG.info("*** WRITE COMPLETE ***");
// close ledger
synchronized (ctx) {
lh.asyncClose(this, ctx);
ctx.wait();
}
// *** WRITING PART COMPLETE // READ PART BEGINS ***
// open ledger
synchronized (ctx) {
bkc.asyncOpenLedger(ledgerId, digestType, ledgerPassword, this, ctx);
ctx.wait();
}
lh = ctx.getLh();
LOG.debug("Number of entries written: " + lh.getLastAddConfirmed());
assertTrue("Verifying number of entries written", lh.getLastAddConfirmed() == (numEntriesToWrite - 1));
// read entries
lh.asyncReadEntries(0, numEntriesToWrite - 1, this, sync);
synchronized (sync) {
while (sync.value == false) {
sync.wait();
}
}
LOG.debug("*** READ COMPLETE ***");
// at this point, Enumeration<LedgerEntry> ls is filled with the returned
// values
int i = 0;
while (ls.hasMoreElements()) {
ByteBuffer origbb = ByteBuffer.wrap(entries.get(i));
Integer origEntry = origbb.getInt();
byte[] entry = ls.nextElement().getEntry();
ByteBuffer result = ByteBuffer.wrap(entry);
LOG.debug("Length of result: " + result.capacity());
LOG.debug("Original entry: " + origEntry);
Integer retrEntry = result.getInt();
LOG.debug("Retrieved entry: " + retrEntry);
assertTrue("Checking entry " + i + " for equality", origEntry.equals(retrEntry));
assertTrue("Checking entry " + i + " for size", entry.length == entriesSize.get(i).intValue());
i++;
}
assertTrue("Checking number of read entries", i == numEntriesToWrite);
lh.close();
} catch (InterruptedException e) {
LOG.error("Interrupted", e);
fail("InterruptedException");
} // catch (NoSuchAlgorithmException e) {
// e.printStackTrace();
// }
}
@Override
public void addComplete(int rc, LedgerHandle lh, long entryId, Object ctx) {
SyncObj x = (SyncObj) ctx;
synchronized (x) {
x.counter++;
x.notify();
}
}
@Override
public void readComplete(int rc, LedgerHandle lh, Enumeration<LedgerEntry> seq, Object ctx) {
ls = seq;
synchronized (sync) {
sync.value = true;
sync.notify();
}
}
@Override
public void createComplete(int rc, LedgerHandle lh, Object ctx) {
synchronized (ctx) {
ControlObj cobj = (ControlObj) ctx;
cobj.setLh(lh);
cobj.notify();
}
}
@Override
public void openComplete(int rc, LedgerHandle lh, Object ctx) {
synchronized (ctx) {
ControlObj cobj = (ControlObj) ctx;
cobj.setLh(lh);
cobj.notify();
}
}
@Override
public void closeComplete(int rc, LedgerHandle lh, Object ctx) {
synchronized (ctx) {
ControlObj cobj = (ControlObj) ctx;
cobj.notify();
}
}
@Before
@Override
public void setUp() throws Exception {
super.setUp();
rng = new Random(System.currentTimeMillis()); // Initialize the Random
// Number Generator
entries = new ArrayList<byte[]>(); // initialize the entries list
entriesSize = new ArrayList<Integer>();
sync = new SyncObj(); // initialize the synchronization data structure
}
}