com.netflix.spinnaker.clouddriver.kubernetes.v2.caching.agent.KubernetesStatefulSetCachingAgent.java Source code

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Here is the source code for com.netflix.spinnaker.clouddriver.kubernetes.v2.caching.agent.KubernetesStatefulSetCachingAgent.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.caching.agent;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.netflix.spectator.api.Registry;
import com.netflix.spinnaker.cats.agent.AgentDataType;
import com.netflix.spinnaker.clouddriver.kubernetes.security.KubernetesNamedAccountCredentials;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.caching.Keys;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesKind;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.description.manifest.KubernetesManifest;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.op.handler.KubernetesStatefulSetHandler;
import com.netflix.spinnaker.clouddriver.kubernetes.v2.security.KubernetesV2Credentials;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.stream.Collectors;

import static com.netflix.spinnaker.cats.agent.AgentDataType.Authority.AUTHORITATIVE;
import static com.netflix.spinnaker.cats.agent.AgentDataType.Authority.INFORMATIVE;

@Slf4j
public class KubernetesStatefulSetCachingAgent extends KubernetesV2OnDemandCachingAgent {
    KubernetesStatefulSetCachingAgent(
            KubernetesNamedAccountCredentials<KubernetesV2Credentials> namedAccountCredentials,
            ObjectMapper objectMapper, Registry registry, int agentIndex, int agentCount) {
        super(namedAccountCredentials, objectMapper, registry, agentIndex, agentCount);
    }

    @Getter
    final private Collection<AgentDataType> providedDataTypes = Collections.unmodifiableSet(
            new HashSet<>(Arrays.asList(AUTHORITATIVE.forType(Keys.LogicalKind.APPLICATIONS.toString()),
                    INFORMATIVE.forType(Keys.LogicalKind.CLUSTERS.toString()),
                    INFORMATIVE.forType(KubernetesKind.SERVICE.toString()),
                    AUTHORITATIVE.forType(KubernetesKind.STATEFUL_SET.toString()))));

    @Override
    protected KubernetesKind primaryKind() {
        return KubernetesKind.STATEFUL_SET;
    }

    @Override
    protected Map<KubernetesManifest, List<KubernetesManifest>> loadSecondaryResourceRelationships(
            List<KubernetesManifest> primaryResourceList) {
        BiFunction<String, String, String> manifestName = (namespace, name) -> namespace + ":" + name;

        Map<String, KubernetesManifest> services = namespaces.stream()
                .map(n -> credentials.list(KubernetesKind.SERVICE, n)).flatMap(Collection::stream)
                .collect(Collectors.toMap((m) -> manifestName.apply(m.getNamespace(), m.getName()), (m) -> m));

        Map<KubernetesManifest, List<KubernetesManifest>> result = new HashMap<>();

        for (KubernetesManifest manifest : primaryResourceList) {
            String serviceName = KubernetesStatefulSetHandler.serviceName(manifest);
            if (StringUtils.isEmpty(serviceName)) {
                continue;
            }

            String key = manifestName.apply(manifest.getNamespace(), serviceName);

            if (!services.containsKey(key)) {
                continue;
            }

            KubernetesManifest service = services.get(key);
            result.put(manifest, Collections.singletonList(service));
        }

        return result;
    }

    @Override
    protected boolean hasClusterRelationship() {
        return true;
    }
}