public static void main(String[] args) throws Exception {
System.out.println("Connecting to KeyValue Server…");
TChannel tchannel = new TChannel.Builder("keyvalue-client").build();
setValue(tchannel, "foo", "bar");
String value = getValue(tchannel, "foo");
System.out.println(String.format("{'%s' => '%s'}", "foo", value));
try {
String otherValue = getValue(tchannel, "baz");
System.out.println(String.format("{'%s' => '%s'}", "foo", otherValue));
} catch (NotFoundError e) {
System.out.println(String.format("Key '%s' not found.", e.getKey()));
}
tchannel.shutdown();
System.out.println("Disconnected from KeyValue Server.");
}
public static void setValue(TChannel tchannel, String key, String value) throws Exception {
KeyValue.setValue_args setValue = new KeyValue.setValue_args(key, value);
ListenableFuture<Response<KeyValue.setValue_result>> future =
tchannel.callThrift(
InetAddress.getLocalHost(),
8888,
new Request.Builder<>(setValue, "keyvalue-service", "KeyValue::setValue").build(),
KeyValue.setValue_result.class);
future.get(100, TimeUnit.MILLISECONDS);
}
public static String getValue(TChannel tchannel, String key)
throws NotFoundError, UnknownHostException, TimeoutException, ExecutionException,
InterruptedException, TChannelError {
KeyValue.getValue_args getValue = new KeyValue.getValue_args(key);
ListenableFuture<Response<KeyValue.getValue_result>> future =
tchannel.callThrift(
InetAddress.getLocalHost(),
8888,
new Request.Builder<>(getValue, "keyvalue-service", "KeyValue::getValue").build(),
KeyValue.getValue_result.class);
Response<KeyValue.getValue_result> getResult = future.get(100, TimeUnit.MILLISECONDS);
String value = getResult.getBody().getSuccess();
NotFoundError err = getResult.getBody().getNotFound();
if (value == null) {
throw err;
}
return value;
}