com.netflix.spinnaker.clouddriver.ecs.cache.Keys.java Source code

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Here is the source code for com.netflix.spinnaker.clouddriver.ecs.cache.Keys.java

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/*
 * Copyright 2017 Lookout, 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.ecs.cache;

import com.google.common.base.CaseFormat;
import com.netflix.spinnaker.clouddriver.cache.KeyParser;

import java.util.HashMap;
import java.util.Map;

import static com.netflix.spinnaker.clouddriver.core.provider.agent.Namespace.HEALTH;
import static com.netflix.spinnaker.clouddriver.ecs.EcsCloudProvider.ID;

public class Keys implements KeyParser {
    public enum Namespace {
        IAM_ROLE, SERVICES, ECS_CLUSTERS, TASKS, CONTAINER_INSTANCES, TASK_DEFINITIONS, ALARMS, SCALABLE_TARGETS;

        public final String ns;

        Namespace() {
            ns = CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, this.name());
        }

        public String toString() {
            return ns;
        }
    }

    public static final String SEPARATOR = ";";

    @Override
    public String getCloudProvider() {
        return ID;
    }

    @Override
    public Map<String, String> parseKey(String key) {
        return parse(key);
    }

    @Override
    public Boolean canParseType(String type) {
        return canParse(type);
    }

    private static Boolean canParse(String type) {
        for (Namespace key : Namespace.values()) {
            if (key.toString().equals(type)) {
                return true;
            }
        }
        return false;
    }

    public static Map<String, String> parse(String key) {
        String[] parts = key.split(SEPARATOR);

        if (parts.length < 3 || !parts[0].equals(ID)) {
            return null;
        }

        Map<String, String> result = new HashMap<>();
        result.put("provider", parts[0]);
        result.put("type", parts[1]);
        result.put("account", parts[2]);

        if (!canParse(parts[1]) && parts[1].equals(HEALTH.getNs())) {
            result.put("region", parts[3]);
            result.put("taskId", parts[4]);
            return result;
        }

        Namespace namespace = Namespace.valueOf(CaseFormat.LOWER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, parts[1]));

        if (!namespace.equals(Namespace.IAM_ROLE)) {
            result.put("region", parts[3]);
        }

        switch (namespace) {
        case SERVICES:
            result.put("serviceName", parts[4]);
            break;
        case ECS_CLUSTERS:
            result.put("clusterName", parts[4]);
            break;
        case TASKS:
            result.put("taskId", parts[4]);
            break;
        case CONTAINER_INSTANCES:
            result.put("containerInstanceArn", parts[4]);
            break;
        case TASK_DEFINITIONS:
            result.put("taskDefinitionArn", parts[4]);
            break;
        case ALARMS:
            result.put("alarmArn", parts[4]);
            break;
        case IAM_ROLE:
            result.put("roleName", parts[3]);
            break;
        case SCALABLE_TARGETS:
            result.put("resource", parts[4]);
            break;
        default:
            break;
        }

        return result;
    }

    @Override
    public Boolean canParseField(String type) {
        return false;
    }

    public static String getServiceKey(String account, String region, String serviceName) {
        return buildKey(Namespace.SERVICES.ns, account, region, serviceName);
    }

    public static String getClusterKey(String account, String region, String clusterName) {
        return buildKey(Namespace.ECS_CLUSTERS.ns, account, region, clusterName);
    }

    public static String getTaskKey(String account, String region, String taskId) {
        return buildKey(Namespace.TASKS.ns, account, region, taskId);
    }

    public static String getTaskHealthKey(String account, String region, String taskId) {
        return buildKey(HEALTH.getNs(), account, region, taskId);
    }

    public static String getContainerInstanceKey(String account, String region, String containerInstanceArn) {
        return buildKey(Namespace.CONTAINER_INSTANCES.ns, account, region, containerInstanceArn);
    }

    public static String getTaskDefinitionKey(String account, String region, String taskDefinitionArn) {
        return buildKey(Namespace.TASK_DEFINITIONS.ns, account, region, taskDefinitionArn);
    }

    public static String getAlarmKey(String account, String region, String alarmArn) {
        return buildKey(Namespace.ALARMS.ns, account, region, alarmArn);
    }

    public static String getScalableTargetKey(String account, String region, String resourceId) {
        return buildKey(Namespace.SCALABLE_TARGETS.ns, account, region, resourceId);
    }

    public static String getIamRoleKey(String account, String iamRoleName) {
        return ID + SEPARATOR + Namespace.IAM_ROLE + SEPARATOR + account + SEPARATOR + iamRoleName;
    }

    private static String buildKey(String namespace, String account, String region, String identifier) {
        return ID + SEPARATOR + namespace + SEPARATOR + account + SEPARATOR + region + SEPARATOR + identifier;
    }
}