com.spotify.styx.state.TimeoutConfig.java Source code

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Here is the source code for com.spotify.styx.state.TimeoutConfig.java

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/*-
 * -\-\-
 * Spotify Styx Scheduler Service
 * --
 * Copyright (C) 2016 Spotify AB
 * --
 * 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
 * 
 *      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.styx.state;

import com.google.common.collect.ImmutableMap;
import com.typesafe.config.Config;
import java.time.Duration;
import java.util.Objects;

/**
 * Configuration object for mappings from {@link RunState.State} to TTL values.
 */
public class TimeoutConfig {

    public static final String DEFAULT_TTL_KEY = "default";

    private final ImmutableMap<RunState.State, Duration> ttls;
    private final Duration defaultTtl;

    private TimeoutConfig(ImmutableMap<RunState.State, Duration> ttls, Duration defaultTtl) {
        this.ttls = Objects.requireNonNull(ttls);
        this.defaultTtl = Objects.requireNonNull(defaultTtl);
    }

    public static TimeoutConfig createFromConfig(Config ttlSubConfig) {
        final Duration defaultTtl = Duration.parse(ttlSubConfig.getString(DEFAULT_TTL_KEY));

        final ImmutableMap.Builder<RunState.State, Duration> map = ImmutableMap.builder();
        for (RunState.State state : RunState.State.values()) {
            final String key = state.name().toLowerCase();
            if (ttlSubConfig.hasPath(key)) {
                final Duration ttl = Duration.parse(ttlSubConfig.getString(key));
                map.put(state, ttl);
            }
        }

        return new TimeoutConfig(map.build(), defaultTtl);
    }

    public static TimeoutConfig createWithDefaultTtl(Duration defaultTtl) {
        return new TimeoutConfig(ImmutableMap.of(), defaultTtl);
    }

    public Duration ttlOf(RunState.State state) {
        return ttls.getOrDefault(state, defaultTtl);
    }
}