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/**
 * Copyright (C) 2016 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.jenkins.openshiftsync;

import io.fabric8.kubernetes.api.model.HasMetadata;
import io.fabric8.kubernetes.api.model.ObjectMeta;

/**
 * Represents a name in a namespace we can use as a key in a map
 */
public class NamespaceName {
  private final String namespace;
  private final String name;

  public NamespaceName(String namespace, String name) {
    this.namespace = namespace;
    this.name = name;
  }

  public static NamespaceName create(HasMetadata hasMetadata) {
    notNull(hasMetadata, "resource");
    ObjectMeta metadata = hasMetadata.getMetadata();
    notNull(metadata, "metadata");
    String name = metadata.getName();
    String namespace = metadata.getNamespace();
    notNull(name, "metadata.name");
    notNull(namespace, "metadata.namespace");
    return new NamespaceName(namespace, name);
  }

  @Override
  public String toString() {
    return "NamespaceName{" +
      namespace + ":" + name +
      '}';
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    NamespaceName that = (NamespaceName) o;

    if (!namespace.equals(that.namespace)) return false;
    return name.equals(that.name);

  }

  @Override
  public int hashCode() {
    int result = namespace.hashCode();
    result = 31 * result + name.hashCode();
    return result;
  }

  public String getName() {
    return name;
  }

  public String getNamespace() {
    return namespace;
  }


  /**
   * Asserts whether the value is not null
   *
   * @param value  the value to test
   * @param name   the key that resolved the value
   * @throws IllegalArgumentException is thrown if assertion fails
   */
  public static void notNull(Object value, String name) {
    if (value == null) {
      throw new IllegalArgumentException(name + " must be specified");
    }
  }
}