io.fabric8.knative.client.util.ApiVersionUtil Maven / Gradle / Ivy

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/*
 * Copyright (C) 2015 Red Hat, 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 io.fabric8.knative.client.util;

import io.fabric8.kubernetes.api.model.HasMetadata;
import io.fabric8.kubernetes.client.utils.Utils;

/**
 * @deprecated
 * @see io.fabric8.kubernetes.client.utils.ApiVersionUtil
 */
@Deprecated
public class ApiVersionUtil {

  private ApiVersionUtil() {
    throw new IllegalStateException("Utility class");
  }

  /**
   * Extracts apiGroupName from apiGroupVersion when in resource for apiGroupName/apiGroupVersion combination
   * 
   * @param item resource which is being used
   * @param apiGroup apiGroupName present if any
   * @return Just the apiGroupName part without apiGroupVersion
   */

  public static  String apiGroup(T item, String apiGroup) {
    if (item instanceof HasMetadata && Utils.isNotNullOrEmpty(((HasMetadata) item).getApiVersion())) {
      return trimGroupOrNull(((HasMetadata) item).getApiVersion());
    } else if (apiGroup != null && !apiGroup.isEmpty()) {
      return trimGroup(apiGroup);
    }
    return null;
  }

  /**
   * Returns the api version falling back to the items apiGroupVersion if not null.
   * 
   * @param 
   * @param item
   * @param apiVersion
   * @return
   */
  public static  String apiVersion(T item, String apiVersion) {
    if (item instanceof HasMetadata && Utils.isNotNullOrEmpty(((HasMetadata) item).getApiVersion())) {
      return trimVersion(((HasMetadata) item).getApiVersion());
    } else if (apiVersion != null && !apiVersion.isEmpty()) {
      return trimVersion(apiVersion);
    }
    return null;
  }

  /**
   * Separates apiGroupVersion for apiGroupName/apiGroupVersion combination.
   * 
   * @param apiVersion The apiGroupVersion or apiGroupName/apiGroupVersion combo.
   * @return Just the apiGroupVersion part without the apiGroupName.
   */
  private static String trimVersion(String apiVersion) {
    if (apiVersion != null && apiVersion.contains("/")) {
      String[] versionParts = apiVersion.split("/");
      return versionParts[versionParts.length - 1];
    }
    return apiVersion;
  }

  /**
   * Separates apiGroupName for apiGroupName/apiGroupVersion combination.
   * 
   * @param apiVersion The apiGroupVersion or apiGroupName/apiGroupVersion combo.
   * @return Just the apiGroupName part without the apiGroupName, or apiVersion if no separator is found.
   */
  private static String trimGroup(String apiVersion) {
    if (apiVersion != null && apiVersion.contains("/")) {
      String[] versionParts = apiVersion.split("/");
      return versionParts[0];
    }
    return apiVersion;
  }

  /**
   * Separates apiGroupName for apiGroupName/apiGroupVersion combination.
   * 
   * @param apiVersion The apiGroupVersion or apiGroupName/apiGroupVersion combo.
   * @return Just the apiGroupName part without the apiGroupName, or null if no separator is found.
   */
  private static String trimGroupOrNull(String apiVersion) {
    if (apiVersion != null && apiVersion.contains("/")) {
      String[] versionParts = apiVersion.split("/");
      return versionParts[0];
    }
    return null;
  }
}