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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog2.shared.system.stats.fs;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.auto.value.AutoValue;
import org.graylog.autovalue.WithBeanGetter;

import javax.annotation.Nullable;
import java.util.Map;

@JsonAutoDetect
@AutoValue
@WithBeanGetter
public abstract class FsStats {
    @JsonProperty("filesystems")
    public abstract Map filesystems();

    @JsonCreator
    public static FsStats create(@JsonProperty("filesystems") Map filesystems) {
        return new AutoValue_FsStats(filesystems);
    }

    @JsonAutoDetect
    @AutoValue
    @WithBeanGetter
    public abstract static class Filesystem {
        @JsonProperty
        public abstract String path();

        @JsonProperty
        @Nullable
        public abstract String mount();

        @JsonProperty
        @Nullable
        public abstract String dev();

        @JsonProperty
        @Nullable
        public  abstract String typeName();

        @JsonProperty
        @Nullable
        public  abstract String sysTypeName();

        @JsonProperty
        public abstract long total();

        @JsonProperty
        public abstract long free();

        @JsonProperty
        public abstract long available();

        @JsonProperty
        public abstract long used();

        @JsonProperty
        public abstract short usedPercent();

        @JsonProperty
        public abstract long inodesTotal();

        @JsonProperty
        public abstract long inodesFree();

        @JsonProperty
        public abstract long inodesUsed();

        @JsonProperty
        public abstract short inodesUsedPercent();

        @JsonProperty
        public abstract long diskReads();

        @JsonProperty
        public abstract long diskWrites();

        @JsonProperty
        public abstract long diskReadBytes();

        @JsonProperty
        public abstract long diskWriteBytes();

        @JsonProperty
        public abstract double diskQueue();

        @JsonProperty
        public abstract double diskServiceTime();

        @JsonCreator
        public static Filesystem create(@JsonProperty("path") String path,
                                        @JsonProperty("mount") String mount,
                                        @JsonProperty("dev") String dev,
                                        @JsonProperty("type_name") String typeName,
                                        @JsonProperty("sys_type_name") String sysTypeName,
                                        @JsonProperty("total") long total,
                                        @JsonProperty("free") long free,
                                        @JsonProperty("available") long available,
                                        @JsonProperty("used") long used,
                                        @JsonProperty("used_percent") short usedPercent,
                                        @JsonProperty("inodes_total") long inodesTotal,
                                        @JsonProperty("inodes_free") long inodesFree,
                                        @JsonProperty("inodes_used") long inodesUsed,
                                        @JsonProperty("inodes_used_percent") short inodesUsedPercent,
                                        @JsonProperty("disk_reads") long diskReads,
                                        @JsonProperty("disk_writes") long diskWrites,
                                        @JsonProperty("disk_read_bytes") long diskReadBytes,
                                        @JsonProperty("disk_write_bytes") long diskWriteBytes,
                                        @JsonProperty("disk_queue") double diskQueue,
                                        @JsonProperty("disk_service_time") double diskServiceTime) {
            return new AutoValue_FsStats_Filesystem(
                    path, mount, dev, typeName, sysTypeName, total, free, available, used, usedPercent,
                    inodesTotal, inodesFree, inodesUsed, inodesUsedPercent,
                    diskReads, diskWrites, diskReadBytes, diskWriteBytes, diskQueue, diskServiceTime);
        }

        public static Filesystem create(String path,
                                        long total,
                                        long free,
                                        long available,
                                        long used,
                                        short usedPercent) {
            return create(path, null, null, null, null, total, free, available, used, usedPercent,
                    -1L, -1L, -1L, (short) -1, -1L, -1L, -1L, -1L, -1L, -1L);
        }
    }
}