com.google.gerrit.server.project.ProjectCache Maven / Gradle / Ivy
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// Copyright (C) 2008 The Android Open Source Project
//
// 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.google.gerrit.server.project;
import com.google.common.collect.ImmutableSortedSet;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.entities.Project;
import com.google.gerrit.exceptions.StorageException;
import java.io.IOException;
import java.util.Optional;
import java.util.Set;
import java.util.function.Supplier;
/** Cache of project information, including access rights. */
public interface ProjectCache {
/**
* Returns a supplier to be used as a short-hand when unwrapping an {@link Optional} returned from
* this cache.
*/
static Supplier illegalState(Project.NameKey nameKey) {
return () -> new IllegalStateException("unable to find project " + nameKey);
}
/**
* Returns a supplier to be used as a short-hand when unwrapping an {@link Optional} returned from
* this cache.
*/
static Supplier noSuchProject(Project.NameKey nameKey) {
return () -> new NoSuchProjectException(nameKey);
}
/** Returns the parent state for all projects on this server. */
ProjectState getAllProjects();
/** Returns the project state of the project storing meta data for all users. */
ProjectState getAllUsers();
/**
* Get the cached data for a project by its unique name.
*
* @param projectName name of the project.
* @return an {@link Optional} wrapping the cached data; {@code absent} if no such project exists
* or the projectName is null
* @throws StorageException when there was an error.
*/
Optional get(@Nullable Project.NameKey projectName) throws StorageException;
/**
* Invalidate the cached information about the given project.
*
* @param p the NameKey of the project that is being evicted
*/
void evict(Project.NameKey p);
/**
* Invalidate the cached information about the given project, and triggers reindexing for it
*
* @param p project that is being evicted
*/
void evictAndReindex(Project p);
/**
* Invalidate the cached information about the given project, and triggers reindexing for it
*
* @param p the NameKey of the project that is being evicted
*/
void evictAndReindex(Project.NameKey p);
/**
* Remove information about the given project from the cache. It will no longer be returned from
* {@link #all()}.
*/
void remove(Project p);
/**
* Remove information about the given project from the cache. It will no longer be returned from
* {@link #all()}.
*/
void remove(Project.NameKey name);
/** Returns sorted iteration of projects. */
ImmutableSortedSet all();
/** Refreshes project list cache */
void refreshProjectList();
/**
* Returns estimated set of relevant groups extracted from hot project access rules. If the cache
* is cold or too small for the entire project set of the server, this set may be incomplete.
*/
Set guessRelevantGroupUUIDs();
/**
* Filter the set of registered project names by common prefix.
*
* @param prefix common prefix.
* @return sorted iteration of projects sharing the same prefix.
*/
ImmutableSortedSet byName(String prefix);
/** Notify the cache that a new project was constructed. */
void onCreateProject(Project.NameKey newProjectName) throws IOException;
}