/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.facebook.presto.util;
import com.facebook.presto.client.ErrorLocation;
import com.facebook.presto.execution.ExecutionFailureInfo;
import com.facebook.presto.execution.Failure;
import com.facebook.presto.spi.ErrorCode;
import com.facebook.presto.spi.ErrorCodeSupplier;
import com.facebook.presto.spi.HostAddress;
import com.facebook.presto.spi.PrestoException;
import com.facebook.presto.spi.PrestoTransportException;
import com.facebook.presto.sql.analyzer.SemanticException;
import com.facebook.presto.sql.parser.ParsingException;
import com.facebook.presto.sql.tree.NodeLocation;
import com.google.common.collect.Lists;
import javax.annotation.Nullable;
import java.util.Collection;
import java.util.List;
import static com.facebook.presto.spi.StandardErrorCode.GENERIC_INTERNAL_ERROR;
import static com.facebook.presto.spi.StandardErrorCode.SYNTAX_ERROR;
import static com.google.common.base.Functions.toStringFunction;
import static com.google.common.base.MoreObjects.firstNonNull;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static java.lang.String.format;
import static java.util.Arrays.asList;
public final class Failures
{
private static final String NODE_CRASHED_ERROR = "The node may have crashed or be under too much load. " +
"This is probably a transient issue, so please retry your query in a few minutes.";
public static final String WORKER_NODE_ERROR = "Encountered too many errors talking to a worker node. " + NODE_CRASHED_ERROR;
public static final String REMOTE_TASK_MISMATCH_ERROR = "Could not communicate with the remote task. " + NODE_CRASHED_ERROR;
private Failures() {}
public static ExecutionFailureInfo toFailure(Throwable failure)
{
if (failure == null) {
return null;
}
// todo prevent looping with suppressed cause loops and such
String type;
HostAddress remoteHost = null;
if (failure instanceof Failure) {
type = ((Failure) failure).getType();
}
else {
Class<?> clazz = failure.getClass();
type = firstNonNull(clazz.getCanonicalName(), clazz.getName());
}
if (failure instanceof PrestoTransportException) {
remoteHost = ((PrestoTransportException) failure).getRemoteHost();
}
return new ExecutionFailureInfo(type,
failure.getMessage(),
toFailure(failure.getCause()),
toFailures(asList(failure.getSuppressed())),
Lists.transform(asList(failure.getStackTrace()), toStringFunction()),
getErrorLocation(failure),
toErrorCode(failure),
remoteHost);
}
public static void checkCondition(boolean condition, ErrorCodeSupplier errorCode, String formatString, Object... args)
{
if (!condition) {
throw new PrestoException(errorCode, format(formatString, args));
}
}
public static List<ExecutionFailureInfo> toFailures(Collection<? extends Throwable> failures)
{
return failures.stream()
.map(Failures::toFailure)
.collect(toImmutableList());
}
@Nullable
private static ErrorLocation getErrorLocation(Throwable throwable)
{
// TODO: this is a big hack
if (throwable instanceof ParsingException) {
ParsingException e = (ParsingException) throwable;
return new ErrorLocation(e.getLineNumber(), e.getColumnNumber());
}
else if (throwable instanceof SemanticException) {
SemanticException e = (SemanticException) throwable;
if (e.getNode().getLocation().isPresent()) {
NodeLocation nodeLocation = e.getNode().getLocation().get();
return new ErrorLocation(nodeLocation.getLineNumber(), nodeLocation.getColumnNumber());
}
}
return null;
}
@Nullable
private static ErrorCode toErrorCode(@Nullable Throwable throwable)
{
if (throwable == null) {
return null;
}
if (throwable instanceof PrestoException) {
return ((PrestoException) throwable).getErrorCode();
}
if (throwable instanceof Failure && ((Failure) throwable).getErrorCode() != null) {
return ((Failure) throwable).getErrorCode();
}
if (throwable instanceof ParsingException || throwable instanceof SemanticException) {
return SYNTAX_ERROR.toErrorCode();
}
if (throwable.getCause() != null) {
return toErrorCode(throwable.getCause());
}
return GENERIC_INTERNAL_ERROR.toErrorCode();
}
}