/*
* Licensed to Crate.IO GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.testing;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.FunctionInfo;
import io.crate.metadata.Scalar;
import io.crate.data.Input;
import io.crate.types.DataTypes;
import java.util.Collections;
public class SleepScalarFunction extends Scalar<Boolean, Long> {
public static final String NAME = "sleep";
private final static FunctionInfo INFO = new FunctionInfo(
new FunctionIdent(NAME, Collections.singletonList(DataTypes.LONG)),
DataTypes.BOOLEAN,
FunctionInfo.Type.SCALAR, FunctionInfo.NO_FEATURES);
@Override
public FunctionInfo info() {
return INFO;
}
@SafeVarargs
@Override
public final Boolean evaluate(Input<Long>... args) {
long millis = (args.length > 0) ? args[0].value() : 1000L;
try {
Thread.sleep(millis);
return true;
} catch (InterruptedException e) {
return false;
}
}
}