com.datastax.dse.driver.internal.core.cql.continuous.ContinuousCqlRequestSyncProcessor Maven / Gradle / Ivy
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package com.datastax.dse.driver.internal.core.cql.continuous;
import com.datastax.dse.driver.api.core.cql.continuous.ContinuousAsyncResultSet;
import com.datastax.dse.driver.api.core.cql.continuous.ContinuousResultSet;
import com.datastax.oss.driver.api.core.cql.Statement;
import com.datastax.oss.driver.api.core.session.Request;
import com.datastax.oss.driver.api.core.type.reflect.GenericType;
import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
import com.datastax.oss.driver.internal.core.session.DefaultSession;
import com.datastax.oss.driver.internal.core.session.RequestProcessor;
import com.datastax.oss.driver.internal.core.util.concurrent.BlockingOperation;
import com.datastax.oss.driver.internal.core.util.concurrent.CompletableFutures;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class ContinuousCqlRequestSyncProcessor
implements RequestProcessor, ContinuousResultSet> {
public static final GenericType CONTINUOUS_RESULT_SYNC =
GenericType.of(ContinuousResultSet.class);
private final ContinuousCqlRequestAsyncProcessor asyncProcessor;
public ContinuousCqlRequestSyncProcessor(ContinuousCqlRequestAsyncProcessor asyncProcessor) {
this.asyncProcessor = asyncProcessor;
}
@Override
public boolean canProcess(Request request, GenericType resultType) {
return request instanceof Statement && resultType.equals(CONTINUOUS_RESULT_SYNC);
}
@Override
public ContinuousResultSet process(
Statement request,
DefaultSession session,
InternalDriverContext context,
String sessionLogPrefix) {
BlockingOperation.checkNotDriverThread();
ContinuousAsyncResultSet firstPage =
CompletableFutures.getUninterruptibly(
asyncProcessor.process(request, session, context, sessionLogPrefix));
return new DefaultContinuousResultSet(firstPage);
}
@Override
public ContinuousResultSet newFailure(RuntimeException error) {
throw error;
}
}