com.qwazr.cluster.service.ClusterServiceStatusJson.java Source code

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Here is the source code for com.qwazr.cluster.service.ClusterServiceStatusJson.java

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/**
 * Copyright 2015-2016 Emmanuel Keller / QWAZR
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 com.qwazr.cluster.service;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.qwazr.utils.StringUtils;
import org.apache.commons.lang3.ArrayUtils;

import java.util.Collections;
import java.util.Map;

@JsonInclude(Include.NON_NULL)
public class ClusterServiceStatusJson {

    public enum StatusEnum {
        ok, degraded, failure
    }

    public final String leader;
    public final StatusEnum status;
    public final int active_count;
    public final String[] active;
    public final int inactive_count;
    public final Map<String, ClusterNodeStatusJson> inactive;

    public ClusterServiceStatusJson() {
        this(StringUtils.EMPTY, ArrayUtils.EMPTY_STRING_ARRAY, Collections.emptyMap());
    }

    public ClusterServiceStatusJson(String leader, String[] active, Map<String, ClusterNodeStatusJson> inactive) {
        this.active = active;
        this.inactive = inactive;
        this.leader = leader;
        this.active_count = active == null ? 0 : active.length;
        this.inactive_count = inactive == null || inactive.isEmpty() ? 0 : inactive.size();
        status = findStatus(active_count, inactive_count);
    }

    public static StatusEnum findStatus(int active_count, int inactive_count) {
        if (active_count == 0)
            return StatusEnum.failure;
        if (inactive_count == 0)
            return StatusEnum.ok;
        return StatusEnum.degraded;
    }
}