| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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.idea.blaze.base.sync.libraries; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.idea.blaze.base.model.BlazeLibrary; |
| import com.intellij.openapi.roots.libraries.Library; |
| import java.util.Collection; |
| import java.util.function.Predicate; |
| import javax.annotation.Nullable; |
| |
| /** Interface for contributing libraries to sync. */ |
| public interface LibrarySource { |
| |
| /** Called during the project structure phase to get libraries. */ |
| Collection<? extends BlazeLibrary> getLibraries(); |
| |
| /** |
| * Returns a filter on libraries. |
| * |
| * <p>Return false from the predicate to filter the library. If any filter returns false the |
| * library is discarded. |
| */ |
| @Nullable |
| Predicate<BlazeLibrary> getLibraryFilter(); |
| |
| /** |
| * Returns a filter that allows sources to retain libraries during library garbage collection. |
| * |
| * <p>Return true from the predicate to spare a library during garbage collection. If any filter |
| * returns true the library is spared. |
| */ |
| @Nullable |
| Predicate<Library> getGcRetentionFilter(); |
| |
| /** Adapter class */ |
| abstract class Adapter implements LibrarySource { |
| @Override |
| public Collection<? extends BlazeLibrary> getLibraries() { |
| return ImmutableList.of(); |
| } |
| |
| @Nullable |
| @Override |
| public Predicate<BlazeLibrary> getLibraryFilter() { |
| return null; |
| } |
| |
| @Nullable |
| @Override |
| public Predicate<Library> getGcRetentionFilter() { |
| return null; |
| } |
| } |
| } |