org.apache.hudi.common.function.FunctionWrapper Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hudi.common.function;
import org.apache.hudi.common.util.collection.Pair;
import org.apache.hudi.exception.HoodieException;
import java.util.function.BinaryOperator;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Stream;
/**
* Function wrapper util class, which catches the exception thrown by input function and return a similar function
* with no exception thrown.
*/
public class FunctionWrapper {
public static Function throwingMapWrapper(SerializableFunction throwingMapFunction) {
return v1 -> {
try {
return throwingMapFunction.apply(v1);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing map", e);
}
};
}
public static Function> throwingFlatMapWrapper(SerializableFunction> throwingFlatMapFunction) {
return v1 -> {
try {
return throwingFlatMapFunction.apply(v1);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing flatMap", e);
}
};
}
public static Consumer throwingForeachWrapper(SerializableConsumer throwingConsumer) {
return v1 -> {
try {
throwingConsumer.accept(v1);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing foreach", e);
}
};
}
public static Function> throwingMapToPairWrapper(SerializablePairFunction throwingPairFunction) {
return v1 -> {
try {
return throwingPairFunction.call(v1);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing mapToPair", e);
}
};
}
public static Function>> throwingFlatMapToPairWrapper(
SerializablePairFlatMapFunction throwingPairFlatMapFunction) {
return v1 -> {
try {
return throwingPairFlatMapFunction.call(v1);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing mapToPair", e);
}
};
}
public static BinaryOperator throwingReduceWrapper(SerializableBiFunction throwingReduceFunction) {
return (v1, v2) -> {
try {
return throwingReduceFunction.apply(v1, v2);
} catch (Exception e) {
throw new HoodieException("Error occurs when executing mapToPair", e);
}
};
}
}