com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesApiVersion.java Source code

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Here is the source code for com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesApiVersion.java

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/*
 * Copyright 2017 Google, Inc.
 *
 * 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.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonValue;
import lombok.EqualsAndHashCode;
import org.apache.commons.lang3.StringUtils;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

@EqualsAndHashCode
public class KubernetesApiVersion {
    public static KubernetesApiVersion V1 = new KubernetesApiVersion("v1");
    public static KubernetesApiVersion EXTENSIONS_V1BETA1 = new KubernetesApiVersion("extensions/v1beta1");
    public static KubernetesApiVersion NETWORKING_K8S_IO_V1 = new KubernetesApiVersion("network.k8s.io/v1");
    public static KubernetesApiVersion APPS_V1BETA1 = new KubernetesApiVersion("apps/v1beta1");
    public static KubernetesApiVersion APPS_V1BETA2 = new KubernetesApiVersion("apps/v1beta2");
    public static KubernetesApiVersion BATCH_V1 = new KubernetesApiVersion("batch/v1");

    private final String name;

    private static List<KubernetesApiVersion> values;

    protected KubernetesApiVersion(String name) {
        if (values == null) {
            values = Collections.synchronizedList(new ArrayList<>());
        }

        this.name = name;
        values.add(this);
    }

    @Override
    @JsonValue
    public String toString() {
        return name;
    }

    @JsonCreator
    public static KubernetesApiVersion fromString(String name) {
        if (StringUtils.isEmpty(name)) {
            return null;
        }

        synchronized (values) {
            Optional<KubernetesApiVersion> versionOptional = values.stream()
                    .filter(v -> v.name.equalsIgnoreCase(name)).findAny();

            // separate from the above chain to avoid concurrent modification of the values list
            return versionOptional.orElseGet(() -> new KubernetesApiVersion(name));
        }
    }
}