本文整理了Java中io.prestosql.execution.QueryManager.createQuery
方法的一些代码示例,展示了QueryManager.createQuery
的具体用法。这些代码示例主要来源于Github
/Stackoverflow
/Maven
等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。QueryManager.createQuery
方法的具体详情如下:
包路径:io.prestosql.execution.QueryManager
类名称:QueryManager
方法名:createQuery
[英]Creates a new query. This method may be called multiple times for the same query id. The the first call will be accepted, and the other calls will be ignored.
[中]创建一个新查询。对于同一查询id,可以多次调用此方法。第一次调用将被接受,其他调用将被忽略。
代码示例来源:origin: io.prestosql/presto-main
private synchronized void submitQuery()
{
if (querySubmissionFuture != null) {
return;
}
querySubmissionFuture = queryManager.createQuery(queryId, sessionContext, this.query);
Futures.addCallback(querySubmissionFuture, new FutureCallback<Object>()
{
@Override
public void onSuccess(Object result)
{
set(null);
}
@Override
public void onFailure(Throwable t)
{
setException(t);
}
}, directExecutor());
}
代码示例来源:origin: prestosql/presto
@Test(timeOut = 60_000L)
public void testLegacyQueryContext()
throws Exception
{
QueryManager queryManager = queryRunner.getCoordinator().getQueryManager();
QueryId queryId = queryManager.createQueryId();
queryManager.createQuery(
queryId,
new TestingSessionContext(TEST_SESSION),
"SELECT * FROM lineitem")
.get();
waitForQueryState(queryRunner, queryId, RUNNING);
// cancel query
queryManager.failQuery(queryId, new PrestoException(GENERIC_INTERNAL_ERROR, "mock exception"));
// assert that LegacyQueryContext is used instead of the DefaultQueryContext
SqlTaskManager taskManager = (SqlTaskManager) queryRunner.getServers().get(0).getTaskManager();
assertInstanceOf(taskManager.getQueryContext(queryId), LegacyQueryContext.class);
}
}
代码示例来源:origin: prestosql/presto
@Test
public void testMetadataIsClearedAfterQueryCanceled()
throws Exception
{
QueryManager queryManager = queryRunner.getCoordinator().getQueryManager();
QueryId queryId = queryManager.createQueryId();
queryManager.createQuery(
queryId,
new TestingSessionContext(TEST_SESSION),
"SELECT * FROM lineitem")
.get();
// wait until query starts running
while (true) {
QueryInfo queryInfo = queryManager.getFullQueryInfo(queryId);
if (queryInfo.getState().isDone()) {
assertEquals(queryInfo.getState(), FAILED);
throw queryInfo.getFailureInfo().toException();
}
if (queryInfo.getState() == RUNNING) {
break;
}
Thread.sleep(100);
}
// cancel query
queryManager.cancelQuery(queryId);
assertEquals(metadataManager.getCatalogsByQueryId().size(), 0);
}
代码示例来源:origin: prestosql/presto
private synchronized void submitQuery()
{
if (querySubmissionFuture != null) {
return;
}
querySubmissionFuture = queryManager.createQuery(queryId, sessionContext, this.query);
Futures.addCallback(querySubmissionFuture, new FutureCallback<Object>()
{
@Override
public void onSuccess(Object result)
{
set(null);
}
@Override
public void onFailure(Throwable t)
{
setException(t);
}
}, directExecutor());
}
代码示例来源:origin: prestosql/presto
@Test(timeOut = 60_000L)
public void testFailQuery()
throws Exception
{
QueryManager queryManager = queryRunner.getCoordinator().getQueryManager();
QueryId queryId = queryManager.createQueryId();
queryManager.createQuery(
queryId,
new TestingSessionContext(TEST_SESSION),
"SELECT * FROM lineitem")
.get();
// wait until query starts running
while (true) {
QueryState state = queryManager.getQueryState(queryId);
if (state.isDone()) {
fail("unexpected query state: " + state);
}
if (state == RUNNING) {
break;
}
Thread.sleep(100);
}
// cancel query
queryManager.failQuery(queryId, new PrestoException(GENERIC_INTERNAL_ERROR, "mock exception"));
QueryInfo queryInfo = queryManager.getFullQueryInfo(queryId);
assertEquals(queryInfo.getState(), FAILED);
assertEquals(queryInfo.getErrorCode(), GENERIC_INTERNAL_ERROR.toErrorCode());
assertNotNull(queryInfo.getFailureInfo());
assertEquals(queryInfo.getFailureInfo().getMessage(), "mock exception");
}
代码示例来源:origin: prestosql/presto
public static QueryId createQuery(DistributedQueryRunner queryRunner, Session session, String sql)
{
QueryManager queryManager = queryRunner.getCoordinator().getQueryManager();
getFutureValue(queryManager.createQuery(session.getQueryId(), new TestingSessionContext(session), sql));
return session.getQueryId();
}
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