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/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets licenses this file
 * to you 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.druid.indexing.overlord.autoscaling.ec2;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import io.druid.java.util.common.StringUtils;
import org.apache.commons.codec.binary.Base64;

public class StringEC2UserData implements EC2UserData
{
  private final String data;
  private final String versionReplacementString;
  private final String version;

  @JsonCreator
  public StringEC2UserData(
      @JsonProperty("data") String data,
      @JsonProperty("versionReplacementString") String versionReplacementString,
      @JsonProperty("version") String version
  )
  {
    this.data = data;
    this.versionReplacementString = versionReplacementString;
    this.version = version;
  }

  @JsonProperty
  public String getData()
  {
    return data;
  }

  @JsonProperty
  public String getVersionReplacementString()
  {
    return versionReplacementString;
  }

  @JsonProperty
  public String getVersion()
  {
    return version;
  }

  @Override
  public StringEC2UserData withVersion(final String _version)
  {
    return new StringEC2UserData(data, versionReplacementString, _version);
  }

  @Override
  public String getUserDataBase64()
  {
    final String finalData;
    if (versionReplacementString != null && version != null) {
      finalData = data.replace(versionReplacementString, version);
    } else {
      finalData = data;
    }
    return Base64.encodeBase64String(StringUtils.toUtf8(finalData));
  }

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

    StringEC2UserData that = (StringEC2UserData) o;

    if (data != null ? !data.equals(that.data) : that.data != null) {
      return false;
    }
    if (version != null ? !version.equals(that.version) : that.version != null) {
      return false;
    }
    if (versionReplacementString != null
        ? !versionReplacementString.equals(that.versionReplacementString)
        : that.versionReplacementString != null) {
      return false;
    }

    return true;
  }

  @Override
  public int hashCode()
  {
    int result = data != null ? data.hashCode() : 0;
    result = 31 * result + (versionReplacementString != null ? versionReplacementString.hashCode() : 0);
    result = 31 * result + (version != null ? version.hashCode() : 0);
    return result;
  }

  @Override
  public String toString()
  {
    return "StringEC2UserData{" +
           "data='" + data + '\'' +
           ", versionReplacementString='" + versionReplacementString + '\'' +
           ", version='" + version + '\'' +
           '}';
  }
}