org.lendingclub.mercator.aws.ArnGenerator.java Source code

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Here is the source code for org.lendingclub.mercator.aws.ArnGenerator.java

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/**
 * Copyright 2017 Lending Club, 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 org.lendingclub.mercator.aws;

import java.util.Optional;

import com.amazonaws.regions.Region;
import com.amazonaws.regions.RegionUtils;
import com.amazonaws.regions.Regions;
import com.google.common.base.Preconditions;

public class ArnGenerator {

    Region region;
    String account;

    public static ArnGenerator newInstance(String account, Region r) {
        ArnGenerator g = new ArnGenerator();
        g.account = account;
        g.region = r;
        return g;
    }

    public static ArnGenerator newInstance(String account, String region) {
        region = region.toUpperCase().replace("-", "_");
        return newInstance(account, Region.getRegion(Regions.valueOf(region)));
    }

    public static ArnGenerator newInstance(String account, Regions region) {
        return newInstance(account, Region.getRegion(region));
    }

    public String createEc2InstanceArn(String instanceId) {
        return String.format("arn:aws:ec2:%s:%s:instance/%s", region.toString(), account, instanceId);
    }

    public String createElbArn(String name) {
        return String.format("arn:aws:elasticloadbalancing:%s:%s:loadbalancer/%s", region.toString(), account,
                name);
    }

    public String createAmiArn(String imageId) {
        return String.format("arn:aws:ec2:%s::image/%s", region.toString(), imageId);
    }
}