org.apache.flink.runtime.io.disk.iomanager.SynchronousFileIOChannel Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.flink.runtime.io.disk.iomanager;

import java.io.IOException;

/** A base class for synchronous readers and writers. */
public abstract class SynchronousFileIOChannel extends AbstractFileIOChannel {

    protected SynchronousFileIOChannel(FileIOChannel.ID channelID, boolean writeEnabled)
            throws IOException {
        super(channelID, writeEnabled);
    }

    // --------------------------------------------------------------------------------------------

    @Override
    public boolean isClosed() {
        return !this.fileChannel.isOpen();
    }

    @Override
    public void close() throws IOException {
        if (this.fileChannel.isOpen()) {
            this.fileChannel.close();
        }
    }
}