com.netflix.spinnaker.clouddriver.kubernetes.v2.op.handler.CanLoadBalance.java Source code

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Here is the source code for com.netflix.spinnaker.clouddriver.kubernetes.v2.op.handler.CanLoadBalance.java

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/*
 * Copyright 2018 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.op.handler;

import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.JsonPatch;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.KubernetesResourceProperties;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.KubernetesResourcePropertyRegistry;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesKind;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesManifest;
import org.apache.commons.lang3.tuple.Pair;

import java.util.List;

public interface CanLoadBalance {
    void attach(KubernetesManifest loadBalancer, KubernetesManifest target);

    List<JsonPatch> detachPatch(KubernetesManifest loadBalancer, KubernetesManifest target);

    List<JsonPatch> attachPatch(KubernetesManifest loadBalancer, KubernetesManifest target);

    static CanLoadBalance lookupProperties(KubernetesResourcePropertyRegistry registry, String accountName,
            Pair<KubernetesKind, String> name) {
        KubernetesResourceProperties loadBalancerProperties = registry.get(accountName, name.getLeft());
        if (loadBalancerProperties == null) {
            throw new IllegalArgumentException(
                    "No properties are registered for " + name + ", are you sure it's a valid load balancer type?");
        }

        KubernetesHandler loadBalancerHandler = loadBalancerProperties.getHandler();
        if (loadBalancerHandler == null) {
            throw new IllegalArgumentException(
                    "No handler registered for " + name + ", are you sure it's a valid load balancer type?");
        }

        if (!(loadBalancerHandler instanceof CanLoadBalance)) {
            throw new IllegalArgumentException(
                    "No support for load balancing via " + name + " exists in Spinnaker");
        }

        return (CanLoadBalance) loadBalancerHandler;
    }
}