[英]How to set a connection timeout to a jackrabbit repository in Java
我需要瀏覽JackRabbit
存儲庫。 我正在使用以下代碼進行連接:
Repository repository = JcrUtils.getRepository(url);
SimpleCredentials credentials = new SimpleCredentials(user, password.toCharArray());
session = repository.login(credentials, workspace);
但是,如果由於某種原因某些參數不正確,我的Web應用程序將被卡住。 我需要做的是設置一個超時連接(例如30秒),但是在jcr API中找不到任何方法。
關於如何執行此操作的任何建議或代碼示例?
PS:我使用的jackrabbit版本是2.2.10。
所以我設法使用FutureTask
添加連接超時。
我創建了一個實現Callable
接口的類,並在call()
方法中放入了連接邏輯:
public class CallableSession implements Callable<Session> {
private final String url;
private final String user;
private final String password;
private final String workspace;
public CallableSession(String url, String user, String password, String workspace) {
this.url = url;
this.user = user;
this.password = password;
this.workspace = workspace;
}
@Override
public Session call() throws Exception {
Repository repository = JcrUtils.getRepository(url);
SimpleCredentials credentials = new SimpleCredentials(user, password.toCharArray());
Session session = repository.login(credentials, workspace);
return session;
}
接下來,在我的連接器類的getSession()
函數中,我創建了一個FutureTask
,執行了它並放置了連接超時:
public Session getSession() {
if (session == null) {
try {
CallableSession cs = new CallableSession(url, user, password, workspace);
FutureTask<Session> future = new FutureTask<Session>(cs);
ExecutorService executor = Executors.newSingleThreadExecutor();
executor.execute(future);
session = future.get(CONNECTION_TIMEOUT, TimeUnit.MILLISECONDS);
} catch (InterruptedException ex) {
Logger.getLogger(JackRabbitConnector.class.getName()).log(Level.SEVERE, null, ex);
} catch (ExecutionException ex) {
Logger.getLogger(JackRabbitConnector.class.getName()).log(Level.SEVERE, null, ex);
} catch (TimeoutException ex) {
Logger.getLogger(JackRabbitConnector.class.getName()).log(Level.SEVERE, null, ex);
}
}
return session;
}
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