/*
 * Copyright 2020 the original author or authors.
 *
 * 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 org.gradle.internal.watch.registry.impl;

import net.rubygrapefruit.platform.NativeIntegrationUnavailableException;
import net.rubygrapefruit.platform.file.FileEvents;
import net.rubygrapefruit.platform.file.FileWatchEvent;
import net.rubygrapefruit.platform.internal.jni.LinuxFileEventFunctions;
import net.rubygrapefruit.platform.internal.jni.LinuxFileEventFunctions.LinuxFileWatcher;
import org.gradle.internal.watch.registry.FileWatcherProbeRegistry;
import org.gradle.internal.watch.registry.FileWatcherUpdater;

import java.util.Collections;
import java.util.concurrent.BlockingQueue;
import java.util.function.Predicate;

public class LinuxFileWatcherRegistryFactory extends AbstractFileWatcherRegistryFactory<LinuxFileEventFunctions, LinuxFileWatcher> {

    public LinuxFileWatcherRegistryFactory(Predicate<String> watchFilter) throws NativeIntegrationUnavailableException {
        super(FileEvents.get(LinuxFileEventFunctions.class), watchFilter);
    }

    @Override
    protected LinuxFileWatcher createFileWatcher(BlockingQueue<FileWatchEvent> fileEvents) throws InterruptedException {
        return fileEventFunctions.newWatcher(fileEvents)
            .start();
    }

    @Override
    protected FileWatcherUpdater createFileWatcherUpdater(LinuxFileWatcher watcher, FileWatcherProbeRegistry probeRegistry, WatchableHierarchies watchableHierarchies) {
        // TODO: Actually handle moved hierarchies here as well.
        return new NonHierarchicalFileWatcherUpdater(watcher, probeRegistry, watchableHierarchies, Collections::emptyList);
    }
}

/*
 * Copyright 2020 the original author or authors.
 *
 * 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 org.gradle.internal.watch.registry.impl;

import net.rubygrapefruit.platform.NativeIntegrationUnavailableException;
import net.rubygrapefruit.platform.file.FileEvents;
import net.rubygrapefruit.platform.file.FileWatchEvent;
import net.rubygrapefruit.platform.internal.jni.LinuxFileEventFunctions;
import net.rubygrapefruit.platform.internal.jni.LinuxFileEventFunctions.LinuxFileWatcher;
import org.gradle.internal.watch.registry.FileWatcherProbeRegistry;
import org.gradle.internal.watch.registry.FileWatcherUpdater;

import java.util.concurrent.BlockingQueue;
import java.util.function.Predicate;

public class LinuxFileWatcherRegistryFactory extends AbstractFileWatcherRegistryFactory<LinuxFileEventFunctions, LinuxFileWatcher> {

    public LinuxFileWatcherRegistryFactory(Predicate<String> watchFilter) throws NativeIntegrationUnavailableException {
        super(FileEvents.get(LinuxFileEventFunctions.class), watchFilter);
    }

    @Override
    protected LinuxFileWatcher createFileWatcher(BlockingQueue<FileWatchEvent> fileEvents) throws InterruptedException {
        return fileEventFunctions.newWatcher(fileEvents)
            .start();
    }

    @Override
    protected FileWatcherUpdater createFileWatcherUpdater(LinuxFileWatcher watcher, FileWatcherProbeRegistry probeRegistry, WatchableHierarchies watchableHierarchies) {
        return new NonHierarchicalFileWatcherUpdater(watcher, probeRegistry, watchableHierarchies, watcher::stopWatchingMovedPaths);
    }
}

Handle moved hierarchies on Linux