/*
 * Copyright (c) 2015 Spotify AB.
 *
 * 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 com.spotify.heroic.metric;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableList;
import com.spotify.heroic.cluster.NodeMetadata;
import com.spotify.heroic.common.Statistics;
import lombok.Data;

import java.util.List;
import java.util.Optional;

import static com.google.common.base.Preconditions.checkNotNull;

@Data
public class ShardTrace {
    private final String name;
    private final NodeMetadata metadata;
    private final long latency;
    private final Statistics statistics;
    private final List<ShardTrace> children;
    private final Optional<RequestError> error;

    @JsonCreator
    public ShardTrace(
        @JsonProperty("name") final String name,
        @JsonProperty("metadata") final NodeMetadata metadata,
        @JsonProperty("latency") final Long latency,
        @JsonProperty("statistics") final Statistics statistics,
        @JsonProperty("error") final Optional<RequestError> error,
        @JsonProperty("children") final List<ShardTrace> children
    ) {
        this.name = checkNotNull(name, "name");
        this.latency = checkNotNull(latency, "latency");
        this.metadata = checkNotNull(metadata, "metadata");
        this.statistics = checkNotNull(statistics, "statistics");
        this.error = checkNotNull(error, "error");
        this.children = checkNotNull(children, "children");
    }

    public static ShardTrace of(
        final String name, final NodeMetadata metadata, final long latency,
        final Statistics statistics, final Optional<RequestError> error
    ) {
        return new ShardTrace(name, metadata, latency, statistics, error, ImmutableList.of());
    }
}
