
com.obj.nc.functions.sources.SourceSupplier Maven / Gradle / Ivy
/*
* Copyright (C) 2021 the original author or authors.
*
* This file is part of Notiflow
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see .
*/
package com.obj.nc.functions.sources;
import com.obj.nc.exceptions.PayloadValidationException;
import com.obj.nc.functions.PreCondition;
import java.util.Optional;
import java.util.function.Supplier;
public abstract class SourceSupplier implements Supplier {
@Override
public OUT get() {
OUT toGet = execution().get();
Optional error = preCondition().apply(toGet);
if (error.isPresent()) {
throw error.get();
}
return toGet;
}
public abstract PreCondition preCondition();
public abstract Supplier execution();
}
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