io.kubernetes.client.apimachinery.KubernetesResource Maven / Gradle / Ivy

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/*
Copyright 2020 The Kubernetes Authors.
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 io.kubernetes.client.apimachinery;

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

public class KubernetesResource {

  public static final Pattern CORE_RESOURCE_URL_PATH_PATTERN =
      Pattern.compile(
          "^/api/v1(/namespaces/(?[\\w-]+))?/(?[\\w-]+)(/(?[\\w-]+))?(/(?[\\w-]+))?");

  public static final Pattern REGULAR_RESOURCE_URL_PATH_PATTERN =
      Pattern.compile(
          "^/apis/(?\\S+?)/(?\\S+?)(/namespaces/(?[\\w-]+))?/(?[\\w-]+)(/(?[\\w-]+))?(/(?[\\w-]+))?");

  public static KubernetesResource parseCoreResource(String urlPath)
      throws ParseKubernetesResourceException {
    Matcher matcher = CORE_RESOURCE_URL_PATH_PATTERN.matcher(urlPath);
    if (!matcher.matches()) {
      throw new ParseKubernetesResourceException();
    }
    KubernetesResource resource =
        new KubernetesResource(
            new GroupVersionResource("", "v1", matcher.group("resource")),
            matcher.group("subresource"),
            matcher.group("namespace"),
            matcher.group("name"));
    return resource;
  }

  public static KubernetesResource parseRegularResource(String urlPath)
      throws ParseKubernetesResourceException {
    Matcher matcher = REGULAR_RESOURCE_URL_PATH_PATTERN.matcher(urlPath);
    if (!matcher.matches()) {
      throw new ParseKubernetesResourceException();
    }
    KubernetesResource resource =
        new KubernetesResource(
            new GroupVersionResource(
                matcher.group("group"), matcher.group("version"), matcher.group("resource")),
            matcher.group("subresource"),
            matcher.group("namespace"),
            matcher.group("name"));
    return resource;
  }

  KubernetesResource(GroupVersionResource gvr, String subResource, String namespace, String name) {
    this.groupVersionResource = gvr;
    this.subResource = subResource;
    this.namespace = namespace;
    this.name = name;
  }

  private final GroupVersionResource groupVersionResource;
  private final String subResource;

  private final String namespace;
  private final String name;

  public GroupVersionResource getGroupVersionResource() {
    return groupVersionResource;
  }

  public String getSubResource() {
    return subResource;
  }

  public String getNamespace() {
    return namespace;
  }

  public String getName() {
    return name;
  }
}