/**
* Verifies the deletion of cache objects.
*
* @throws Exception
*/
@Test
public void testEvict() throws Exception {
CouchbaseCache cache = new CouchbaseCache(cacheName, client);
String key = "couchbase-cache-test";
String value = "Hello World!";
Boolean success = client.set(key, 0, value).get();
assertTrue(success);
cache.evict(key);
Object result = client.get(key);
assertNull(result);
}
/** Verifies set() with TTL value. */
@Test
public void testSetWithTtl() throws InterruptedException {
CouchbaseCache cache = new CouchbaseCache(cacheName, client, 1); // cache for 1 second
String key = "couchbase-cache-test";
String value = "Hello World!";
cache.put(key, value);
// wait for TTL to expire (double time of TTL)
Thread.sleep(2000);
String stored = (String) client.get(key);
assertNull(stored);
}
/** Verifies set() and get() of cache objects. */
@Test
public void testGetSet() {
CouchbaseCache cache = new CouchbaseCache(cacheName, client);
String key = "couchbase-cache-test";
String value = "Hello World!";
cache.put(key, value);
String stored = (String) client.get(key);
assertNotNull(stored);
assertEquals(value, stored);
ValueWrapper loaded = cache.get(key);
assertEquals(value, loaded.get());
}
public static void main(String[] args) {
System.out.println(
"--------------------------------------------------------------------------");
System.out.println("\tCouchbase Atomic Operations");
System.out.println(
"--------------------------------------------------------------------------");
List<URI> uris = new LinkedList<URI>();
uris.add(URI.create("http://127.0.0.1:8091/pools"));
CouchbaseClient cb = null;
try {
cb = new CouchbaseClient(uris, "default", "");
cb.delete("counter");
System.out.println("Set Counter to 0");
cb.incr("counter", 1, 0);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
System.out.println("Increment by 1");
cb.incr("counter", 1);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
System.out.println("Increment by 10");
cb.incr("counter", 10);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
cb.delete("counter");
System.out.println("-- counter deleted --");
System.out.println(
"--------------------------------------------------------------------------");
System.out.println("Using incr + initial values for counters ");
cb.incr("counter", 1, 1);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
System.out.println("Decrease below 0");
cb.decr("counter", 1000);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
System.out.println("set counter to -1, decr, then incr sets to max value");
cb.incr("counter", -1, -1);
cb.incr("counter", 1);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
System.out.println("incr on max value returns it to 0");
cb.incr("counter", 1);
System.out.println("Counter : " + cb.get("counter"));
System.out.println("");
cb.delete("counter");
System.out.println("\n\n");
cb.shutdown(10, TimeUnit.SECONDS);
} catch (Exception e) {
System.err.println("Error connecting to Couchbase: " + e.getMessage());
}
}
public void close(@Disposes CouchbaseClient couchbaseClient) {
couchbaseClient.shutdown();
}