Arn.java

/*
 * Copyright (c) 2016 ingenieux Labs
 *
 * 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 br.com.ingenieux.mojo.lambda;

import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Arn {
  private static final List<Pattern> PATTERN_ARNS =
      Arrays.asList(
          Pattern.compile(
              "^arn:" + "(?<partition>[\\w\\-]):" + "(?<service>[\\w\\-]):" + "(?<region>[\\w\\-]):" + "(?<accountId>[\\w\\-]):" + "(?<resource>[\\w\\-])"),
          Pattern.compile(
              "^arn:"
                  + "(?<partition>[\\w\\-]):"
                  + "(?<service>[\\w\\-]):"
                  + "(?<region>[\\w\\-]):"
                  + "(?<accountId>[\\w\\-]):"
                  + "(?<resourceType>[\\w\\-]):"
                  + "(?<resource>[\\w\\-])"),
          Pattern.compile(
              "^arn:"
                  + "(?<partition>[\\w\\-]):"
                  + "(?<service>[\\w\\-]):"
                  + "(?<region>[\\w\\-]):"
                  + "(?<accountId>[\\w\\-]):"
                  + "(?<resourceType>[\\w\\-])/"
                  + "(?<resource>[\\w\\-])"));

  String sourceArn;

  String partition;

  String service;

  String region;

  String accountId;

  String resource;

  String resourceType;

  public Arn(String sourceArn, String partition, String service, String region, String accountId, String resource, String resourceType) {
    this.sourceArn = sourceArn;
    this.partition = partition;
    this.service = service;
    this.region = region;
    this.accountId = accountId;
    this.resource = resource;
    this.resourceType = resourceType;
  }

  public String getSourceArn() {
    return sourceArn;
  }

  public void setSourceArn(String sourceArn) {
    this.sourceArn = sourceArn;
  }

  public String getPartition() {
    return partition;
  }

  public void setPartition(String partition) {
    this.partition = partition;
  }

  public String getService() {
    return service;
  }

  public void setService(String service) {
    this.service = service;
  }

  public String getRegion() {
    return region;
  }

  public void setRegion(String region) {
    this.region = region;
  }

  public String getAccountId() {
    return accountId;
  }

  public void setAccountId(String accountId) {
    this.accountId = accountId;
  }

  public String getResource() {
    return resource;
  }

  public void setResource(String resource) {
    this.resource = resource;
  }

  public String getResourceType() {
    return resourceType;
  }

  public void setResourceType(String resourceType) {
    this.resourceType = resourceType;
  }

  public static Arn lookupArn(String str) {
    for (Pattern p : PATTERN_ARNS) {
      Matcher m = p.matcher(str);

      if (m.matches()) {
        String partition = m.group("partition");
        String service = m.group("service");
        String region = m.group("region");
        String accountId = m.group("accountId");
        String resource = m.group("resource");
        String resourceType = m.group("resourceType");

        return new Arn(str, partition, service, region, accountId, resource, resourceType);
      }
    }

    return null;
  }
}