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/*******************************************************************************
* Copyright (c) 2006 Wind River Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.debug.test;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.eclipse.tcf.debug.test.util.CallbackCache;
import org.eclipse.tcf.debug.test.util.DataCallback;
import org.eclipse.tcf.debug.test.util.Query;
import org.eclipse.tcf.debug.test.util.Transaction;
import org.eclipse.tcf.protocol.Protocol;
/**
* Tests that exercise the Transaction object.
*/
public class TransactionTests extends TestCase {
final static private int NUM_CACHES = 5;
TestCache[] fTestCaches = new TestCache[NUM_CACHES];
Map<DataCallback<?>, Boolean> fRetrieveRms;
class TestCache extends CallbackCache<Integer> {
final private int fIndex;
public TestCache(int index) {
fIndex = index;
}
@Override
protected void retrieve(DataCallback<Integer> rm) {
synchronized(TransactionTests.this) {
fRetrieveRms.put(rm, true);
TransactionTests.this.notifyAll();
}
}
}
class TestSingleTransaction extends Transaction<Integer> {
@Override
protected Integer process() throws InvalidCacheException, ExecutionException {
validate(fTestCaches[0]);
return fTestCaches[0].getData();
}
}
class TestSumTransaction extends Transaction<Integer> {
@Override
protected Integer process() throws InvalidCacheException, ExecutionException {
validate(fTestCaches);
int sum = 0;
for (CallbackCache<Integer> cache : fTestCaches) {
sum += cache.getData();
}
return sum;
}
}
class TestSingleTransactionUnchecked extends Transaction<Integer> {
@Override
protected boolean processUnchecked() {
if (!validateUnchecked(fTestCaches[0])) {
return false;
}
assert fTestCaches[0].getError() == null;
setData(fTestCaches[0].getData());
return true;
}
}
class TestSumTransactionUnchecked extends Transaction<Integer> {
@Override
protected boolean processUnchecked() {
if (!validateUnchecked(fTestCaches)) {
return false;
}
int sum = 0;
for (CallbackCache<Integer> cache : fTestCaches) {
assert cache.getError() == null;
sum += cache.getData();
}
setData(sum);
return true;
}
}
class TestSumTransactionIterative extends Transaction<Integer> {
@Override
protected boolean processUnchecked() {
int sum = 0;
for (CallbackCache<Integer> cache : fTestCaches) {
if (!validateUnchecked(cache)) {
return false;
}
assert cache.getError() == null;
sum += cache.getData();
}
setData(sum);
return true;
}
}
/**
* There's no rule on how quickly the cache has to start data retrieval
* after it has been requested. It could do it immediately, or it could
* wait a dispatch cycle, etc..
*/
private int waitForRetrieveRm() {
synchronized(this) {
while (!checkRetrieveRms()) {
try {
wait(100);
} catch (InterruptedException e) {
return NUM_CACHES;
}
}
return fRetrieveRms.size();
}
}
private boolean checkRetrieveRms() {
if (fRetrieveRms.size() == NUM_CACHES) return true;
boolean retVal = false;
for (DataCallback<?> rm : fRetrieveRms.keySet()) {
if (fRetrieveRms.get(rm)) {
retVal = true;
}
}
return retVal;
}
public void setUp() throws ExecutionException, InterruptedException {
fRetrieveRms = new HashMap<DataCallback<?>, Boolean>();
for (int i = 0; i < fTestCaches.length; i++) {
fTestCaches[i] = new TestCache(i);
}
}
public void tearDown() throws ExecutionException, InterruptedException {
fTestCaches = new TestCache[NUM_CACHES];
}
private void doTestSingleTransaction(final Transaction<Integer> testTransaction) throws InterruptedException, ExecutionException {
// Request data from cache
Query<Integer> q = new Query<Integer>() {
@Override
protected void execute(DataCallback<Integer> rm) {
testTransaction.request(rm);
}
};
q.invoke();
// Wait until the cache starts data retrieval.
waitForRetrieveRm();
// Set the data to caches.
Protocol.invokeAndWait(new Runnable() {
public void run() {
@SuppressWarnings("unchecked")
DataCallback<Integer> cb = ((DataCallback<Integer>)fRetrieveRms.keySet().iterator().next());
cb.setData(1);
cb.done();
}
});
Assert.assertEquals(1, (int)q.get());
}
public void testSingleTransaction() throws InterruptedException, ExecutionException {
doTestSingleTransaction(new TestSingleTransaction());
}
private void doTestSumTransaction(final Transaction<Integer> testTransaction) throws InterruptedException, ExecutionException {
// Request data from cache
Query<Integer> q = new Query<Integer>() {
@Override
protected void execute(DataCallback<Integer> rm) {
testTransaction.request(rm);
}
};
q.invoke();
int numRms = 0;
while (numRms != NUM_CACHES) {
// Wait until the cache starts data retrieval.
numRms = waitForRetrieveRm();
// Set the data to caches.
Protocol.invokeAndWait(new Runnable() {
public void run() {
for (Iterator<DataCallback<?>> itr = fRetrieveRms.keySet().iterator(); itr.hasNext();) {
@SuppressWarnings("unchecked")
DataCallback<Integer> rm =((DataCallback<Integer>)itr.next());
if (fRetrieveRms.get(rm)) {
rm.setData(1);
rm.done();
fRetrieveRms.put(rm, false);
itr = fRetrieveRms.keySet().iterator();
}
}
}
});
}
q.invoke();
Assert.assertEquals(NUM_CACHES, (int)q.get());
}
public void testSumTransaction() throws InterruptedException, ExecutionException {
doTestSumTransaction(new TestSumTransaction());
}
public void testSingleTransactionUnchecked() throws InterruptedException, ExecutionException {
doTestSingleTransaction(new TestSingleTransactionUnchecked());
}
public void testSumTransactionUnchecked() throws InterruptedException, ExecutionException {
doTestSumTransaction(new TestSumTransactionUnchecked());
}
public void testSumTransactionIterative() throws InterruptedException, ExecutionException {
doTestSumTransaction(new TestSumTransactionIterative());
}
}
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