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package com.devonfw.cobigen.api.to;

/**
 * Representation of a VariableAssignment node of the context configuration.
 */
public class VariableAssignmentTo {

  /**
   * Type of this variable assignment
   */
  protected String type;

  /**
   * Variable name
   */
  protected String varName;

  /**
   * Concrete value (if set)
   */
  protected String value;

  /**
   * Constructor to create a {@link VariableAssignmentTo} for a concrete string value
   *
   * @param type Type of the variable assignment, interpreted by the plug-ins
   * @param varName variable name
   * @param value concrete string value
   * @author mbrunnli (15.04.2013)
   */
  public VariableAssignmentTo(String type, String varName, String value) {

    this.type = type;
    this.varName = varName;
    this.value = value;
  }

  /**
   * Returns the type, which should determine the variable resolution (if necessary)
   *
   * @return the type
   * @author mbrunnli (14.04.2014)
   */
  public String getType() {

    return this.type;
  }

  /**
   * Returns the variable name
   *
   * @return variable name
   * @author mbrunnli (14.04.2014)
   */
  public String getVarName() {

    return this.varName;
  }

  /**
   * Returns the value of the variable assignment, which has to be interpreted by the matcher in order to get the
   * assigned value
   *
   * @return the value for the matcher
   * @author mbrunnli (14.04.2014)
   */
  public String getValue() {

    return this.value;
  }

  @Override
  public int hashCode() {

    final int prime = 31;
    int result = super.hashCode();
    result = prime * result + (getType() == null ? 0 : getType().hashCode());
    result = prime * result + (getVarName() == null ? 0 : getVarName().hashCode());
    result = prime * result + (getValue() == null ? 0 : getValue().hashCode());
    return result;
  }

  @Override
  public boolean equals(Object obj) {

    if (obj == null) {
      return false;
    }
    if (obj == this) {
      return true;
    }

    if (obj instanceof VariableAssignmentTo) {
      boolean equal = true;
      VariableAssignmentTo otherVariableAssignment = (VariableAssignmentTo) obj;
      if (getType() != null) {
        equal = equal && getType().equals(otherVariableAssignment.getType());
      }
      if (!equal) {
        return false;
      }

      if (getVarName() != null) {
        equal = equal && getVarName().equals(otherVariableAssignment.getVarName());
      }
      if (!equal) {
        return false;
      }

      if (getValue() != null) {
        equal = equal && getValue().equals(otherVariableAssignment.getValue());
      }
      return equal;
    }
    return false;
  }

  @Override
  public String toString() {

    return getClass().getSimpleName() + "[type='" + getType() + "'/varName='" + getVarName() + "'/value='" + getValue()
        + "']";
  }

}