package net.timewalker.ffmq3.test.storage.data.impl;
import net.timewalker.ffmq3.storage.data.impl.InMemoryLinkedDataStore;
import junit.framework.TestCase;
/**
* InMemoryLinkedObjectStoreTest
*/
public class InMemoryLinkedObjectStoreTest extends TestCase
{
private static final int MSG_COUNT = 1000;
public void testStore() throws Exception
{
InMemoryLinkedDataStore store = new InMemoryLinkedDataStore("test",16,10000);
assertEquals(0, store.size());
int previous = -1;
for (int n = 0 ; n < MSG_COUNT ; n++)
{
previous = store.store("test_"+n, previous);
if (previous == -1)
throw new IllegalStateException("No space left !");
}
assertEquals(MSG_COUNT, store.size());
store.commitChanges();
int count = 0;
int current = store.first();
while (current != -1)
{
/*Object data = */store.retrieve(current);
//System.out.println(data);
current = store.next(current);
count++;
}
assertEquals(MSG_COUNT, count);
// Delete half entries
count = 0;
current = store.first();
while (current != -1)
{
int next = store.next(current);
if (next != -1)
next = store.next(next);
store.delete(current);
count++;
current = next;
}
assertEquals(MSG_COUNT-count, store.size());
int pos = -1;
for(int n=0;n<count;n++)
{
previous = store.store("other_test_"+n, pos);
if (previous == -1)
throw new IllegalStateException("No space left !");
pos = store.next(previous);
if (pos != -1)
pos = store.next(pos);
}
store.commitChanges();
assertEquals(MSG_COUNT, store.size());
//System.out.println(store);
count = 0;
current = store.first();
while (current != -1)
{
/*Object data = */store.retrieve(current);
//System.out.println(data);
current = store.next(current);
count++;
}
assertEquals(MSG_COUNT, count);
store.close();
}
}