78 lines
2.4 KiB
Java
78 lines
2.4 KiB
Java
/*
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* FileSponge
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* Copyright (C) 2020 Andrea Cavalli
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package org.warp.filesponge;
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import java.util.Set;
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import java.util.stream.Collectors;
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import lombok.AllArgsConstructor;
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import org.warp.filesponge.reactor.AsyncMultiAssociation;
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import org.warp.filesponge.value.FileURI;
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import org.warp.filesponge.value.MirrorURI;
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import reactor.core.publisher.Mono;
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import reactor.core.scheduler.Scheduler;
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import reactor.core.scheduler.Schedulers;
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@AllArgsConstructor()
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public class FileMirrorsManager {
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private final Scheduler fileMirrorsManagerScheduler = Schedulers.single();
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private final MirrorAvailabilityManager mirrorAvailabilityManager;
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/**
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* This map must be persistent
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*/
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private final AsyncMultiAssociation<FileURI, MirrorURI> fileMirrors;
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public Mono<Set<MirrorURI>> getAvailableMirrors(FileURI fileURI) {
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return fileMirrors
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.getLinks(fileURI)
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.filterWhen(mirrorAvailabilityManager::isMirrorAvailable)
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.collect(Collectors.toUnmodifiableSet())
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.subscribeOn(fileMirrorsManagerScheduler);
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}
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public Mono<Boolean> hasAnyAvailableMirror(FileURI uri) {
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return fileMirrors
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.getLinks(uri)
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.filterWhen(mirrorAvailabilityManager::isMirrorAvailable)
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.hasElements()
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.subscribeOn(fileMirrorsManagerScheduler);
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}
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public Mono<Void> addMirror(FileURI uri, MirrorURI mirrorURI) {
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return fileMirrors
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.link(uri, mirrorURI)
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.then()
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.subscribeOn(fileMirrorsManagerScheduler);
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}
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public Mono<Void> removeMirror(FileURI uri, MirrorURI mirrorURI) {
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return fileMirrors
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.unlink(uri, mirrorURI)
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.then()
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.subscribeOn(fileMirrorsManagerScheduler);
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}
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public Mono<Void> unsetAllFiles() {
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return fileMirrors.clear()
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.subscribeOn(fileMirrorsManagerScheduler);
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}
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}
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