com.netflix.spinnaker.clouddriver.kubernetes.v2.description.KubernetesManifest.java Source code

Introduction

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

Source

/*
 * 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;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Data;
import org.apache.commons.lang3.tuple.ImmutableTriple;
import org.apache.commons.lang3.tuple.Triple;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;

public class KubernetesManifest extends HashMap<String, Object> {
    private static <T> T getRequiredField(KubernetesManifest manifest, String field) {
        T res = (T) manifest.get(field);
        if (res == null) {
            throw MalformedManifestException.missingField(manifest, field);
        }

        return res;
    }

    @JsonIgnore
    public KubernetesKind getKind() {
        return KubernetesKind.fromString(getRequiredField(this, "kind"));
    }

    @JsonIgnore
    public void setKind(KubernetesKind kind) {
        put("kind", kind.toString());
    }

    @JsonIgnore
    public KubernetesApiVersion getApiVersion() {
        return KubernetesApiVersion.fromString(getRequiredField(this, "apiVersion"));
    }

    @JsonIgnore
    public void setApiVersion(KubernetesApiVersion apiVersion) {
        put("apiVersion", apiVersion.toString());
    }

    @JsonIgnore
    private Map<String, Object> getMetatdata() {
        return getRequiredField(this, "metadata");
    }

    @JsonIgnore
    public String getName() {
        return (String) getMetatdata().get("name");
    }

    @JsonIgnore
    public void setName(String name) {
        getMetatdata().put("name", name);
    }

    @JsonIgnore
    public String getNamespace() {
        return (String) getMetatdata().get("namespace");
    }

    @JsonIgnore
    public void setNamespace(String namespace) {
        getMetatdata().put("namespace", namespace);
    }

    @JsonIgnore
    public String getCreationTimestamp() {
        return getMetatdata().get("creationTimestamp").toString();
    }

    @JsonIgnore
    public List<OwnerReference> getOwnerReferences(ObjectMapper mapper) {
        Map<String, Object> metadata = getMetatdata();
        Object ownerReferences = metadata.get("ownerReferences");
        if (ownerReferences == null) {
            return new ArrayList<>();
        }

        return mapper.convertValue(ownerReferences, new TypeReference<List<OwnerReference>>() {
        });
    }

    @JsonIgnore
    public Map<String, String> getAnnotations() {
        Map<String, String> result = (Map<String, String>) getMetatdata().get("annotations");
        if (result == null) {
            result = new HashMap<>();
            getMetatdata().put("annotations", result);
        }

        return result;
    }

    @JsonIgnore
    public Optional<Map<String, String>> getSpecTemplateAnnotations() {
        if (!containsKey("spec")) {
            return Optional.empty();
        }

        Map<String, Object> spec = (Map<String, Object>) get("spec");
        if (!spec.containsKey("template")) {
            return Optional.empty();
        }

        Map<String, Object> template = (Map<String, Object>) spec.get("template");
        if (!template.containsKey("metadata")) {
            return Optional.empty();
        }

        Map<String, Object> metadata = (Map<String, Object>) template.get("metadata");
        Map<String, String> result = (Map<String, String>) metadata.get("annotations");
        if (result == null) {
            result = new HashMap<>();
            metadata.put("annotations", result);
        }

        return Optional.of(result);
    }

    @JsonIgnore
    public String getFullResourceName() {
        return String.join("|", getApiVersion().toString(), getKind().toString(), getName());
    }

    public static Triple<KubernetesApiVersion, KubernetesKind, String> fromFullResourceName(
            String fullResourceName) {
        String[] split = fullResourceName.split("\\|");
        if (split.length != 3) {
            throw new IllegalArgumentException("Expected a full resource name of the form <version>|<kind>|<name>");
        }

        KubernetesApiVersion apiVersion = KubernetesApiVersion.fromString(split[0]);
        KubernetesKind kind = KubernetesKind.fromString(split[1]);
        String name = split[2];

        return new ImmutableTriple<>(apiVersion, kind, name);
    }

    @Data
    public static class OwnerReference {
        KubernetesApiVersion apiVersion;
        KubernetesKind kind;
        String name;
        boolean controller;
    }
}