net.oneandone.stool.locking.Lock Maven / Gradle / Ivy

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Stool's main component. Java Library, cli, setup code.

There is a newer version: 4.0.3

/*
 * Copyright 1&1 Internet AG, https://github.com/1and1/
 *
 * 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 net.oneandone.stool.locking;

import java.io.IOException;

/**
 * I cannot use Java's FileLocks because you cannot acquire them recursively.
 */
public class Lock implements AutoCloseable {
    private final LockManager locks;
    public final String name;
    public final Mode mode;

    public Lock(LockManager locks, String name, Mode mode) {
        this.locks = locks;
        this.name = name;
        this.mode = mode;
    }

    @Override
    public void close() throws IOException {
        locks.release(this);
    }

    public String toString() {
        return name + " (" + mode.toString().toLowerCase() + ")";
    }
}