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Java-based middleware for in-memory processing of big data in a distributed environment.

There is a newer version: 3.0.0-beta1

/*
 * 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.ignite.internal.igfs.common;

import java.util.Arrays;
import java.util.List;

/**
 * Grid file system commands to call remotely.
 */
public enum IgfsIpcCommand {
    /** Handshake command which will send information necessary for client to handle requests correctly. */
    HANDSHAKE,

    /** IGFS status (free/used space). */
    STATUS,

    /** Check specified path exists in the file system. */
    EXISTS,

    /** Get information for the file in specified path. */
    INFO,

    /** Get directory summary. */
    PATH_SUMMARY,

    /** Update information for the file  in specified path. */
    UPDATE,

    /** Rename file. */
    RENAME,

    /** Delete file. */
    DELETE,

    /** Make directories. */
    MAKE_DIRECTORIES,

    /** List files under the specified path. */
    LIST_PATHS,

    /** List files under the specified path. */
    LIST_FILES,

    /** Get affinity block locations for data blocks of the file. */
    AFFINITY,

    /** Updates last access and last modification time for a path. */
    SET_TIMES,

    /** Open file for reading as an input stream. */
    OPEN_READ,

    /** Open existent file as output stream to append data to. */
    OPEN_APPEND,

    /** Create file and open output stream for writing data to. */
    OPEN_CREATE,

    /** Close stream. */
    CLOSE,

    /** Read file's data block. */
    READ_BLOCK,

    /** Write file's data block. */
    WRITE_BLOCK,

    /** Server response. */
    CONTROL_RESPONSE,

    /** Mode resolver request */
    MODE_RESOLVER;

    /** All values */
    private static final List ALL = Arrays.asList(values());

    /**
     * Resolve command by its ordinal.
     *
     * @param ordinal Command ordinal.
     * @return Resolved command.
     */
    public static IgfsIpcCommand valueOf(int ordinal) {
        return ALL.get(ordinal);
    }
}