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/*-
 * -\-\-
 * Helios Client
 * --
 * Copyright (C) 2016 Spotify AB
 * --
 * 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 com.spotify.helios.common.descriptors;

import static com.google.common.base.Preconditions.checkNotNull;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.jetbrains.annotations.Nullable;

/**
 * Basically, a pair of {@link Job} and {@link Goal}.  This is different than {@link Deployment}
 * which has a {@link JobId} and not a {@link Job}
 */
@JsonIgnoreProperties(ignoreUnknown = true)
public class Task extends Descriptor {
  public static final String EMPTY_DEPLOYER_USER = null;
  public static final String EMPTY_DEPLOYER_MASTER = null;
  public static final String EMPTY_DEPOYMENT_GROUP_NAME = null;

  private final Job job;
  private final Goal goal;
  private final String deployerUser;
  private final String deployerMaster;
  private final String deploymentGroupName;

  public Task(@JsonProperty("job") final Job job,
              @JsonProperty("goal") final Goal goal,
              @JsonProperty("deployerUser") @Nullable final String deployerUser,
              @JsonProperty("deployerMaster") @Nullable final String deployerMaster,
              @JsonProperty("deploymentGroupName") @Nullable final String deploymentGroupName) {
    this.job = checkNotNull(job, "job");
    this.goal = checkNotNull(goal, "goal");
    this.deployerUser = deployerUser;
    this.deployerMaster = deployerMaster;
    this.deploymentGroupName = deploymentGroupName;
  }

  public Goal getGoal() {
    return goal;
  }

  public Job getJob() {
    return job;
  }

  public String getDeployerUser() {
    return deployerUser;
  }

  public String getDeploymentGroupName() {
    return deploymentGroupName;
  }

  public String getDeployerMaster() {
    return deployerMaster;
  }

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

    final Task task = (Task) obj;

    if (job != null ? !job.equals(task.job) : task.job != null) {
      return false;
    }
    if (goal != task.goal) {
      return false;
    }
    if (deployerUser != null ? !deployerUser.equals(task.deployerUser)
                             : task.deployerUser != null) {
      return false;
    }
    if (deploymentGroupName != null ? !deploymentGroupName.equals(task.deploymentGroupName)
                                    : task.deploymentGroupName != null) {
      return false;
    }
    return !(deployerMaster != null ? !deployerMaster
        .equals(task.deployerMaster)
                                    : task.deployerMaster != null);

  }

  @Override
  public int hashCode() {
    int result = job != null ? job.hashCode() : 0;
    result = 31 * result + (goal != null ? goal.hashCode() : 0);
    result = 31 * result + (deployerUser != null ? deployerUser.hashCode() : 0);
    result = 31 * result + (deploymentGroupName != null ? deploymentGroupName.hashCode() : 0);
    result = 31 * result + (deployerMaster != null ? deployerMaster.hashCode() : 0);
    return result;
  }

  @Override
  public String toString() {
    return "Task{"
           + "job=" + job
           + ", goal=" + goal
           + ", deployerUser='" + deployerUser + '\''
           + ", deployerMaster='" + deployerMaster + '\''
           + ", deploymentGroupName='" + deploymentGroupName + '\''
           + '}';
  }
}