/*
* 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.client.Failure;
import com.facebook.presto.client.FailureInfo;
import com.facebook.presto.sql.parser.ParsingException;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import javax.annotation.Nullable;
import java.util.List;
import static com.google.common.base.Functions.toStringFunction;
import static com.google.common.collect.Iterables.transform;
import static java.util.Arrays.asList;
public final class Failures
{
private Failures() {}
public static FailureInfo toFailure(Throwable failure)
{
if (failure == null) {
return null;
}
// todo prevent looping with suppressed cause loops and such
String type;
if (failure instanceof Failure) {
type = ((Failure) failure).getType();
}
else {
type = failure.getClass().getCanonicalName();
}
return new FailureInfo(type,
failure.getMessage(),
toFailure(failure.getCause()),
toFailures(asList(failure.getSuppressed())),
Lists.transform(asList(failure.getStackTrace()), toStringFunction()),
getErrorLocation(failure));
}
public static List<FailureInfo> toFailures(Iterable<? extends Throwable> failures)
{
return ImmutableList.copyOf(transform(failures, toFailureFunction()));
}
private static Function<Throwable, FailureInfo> toFailureFunction()
{
return new Function<Throwable, FailureInfo>()
{
@Override
public FailureInfo apply(Throwable throwable)
{
return toFailure(throwable);
}
};
}
@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());
}
return null;
}
}