id.luckynetwork.lyrams.lyralibs.velocity.callbacks.IsIntegerCallback Maven / Gradle / Ivy

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package id.luckynetwork.lyrams.lyralibs.velocity.callbacks;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.RequiredArgsConstructor;

@Data
@RequiredArgsConstructor
@AllArgsConstructor
public class IsIntegerCallback {

    private boolean isInteger = false;
    private int value = -1;

    /**
     * This function sets the value of the variable value to the value of the parameter value and returns this.
     *
     * @param value The value to check.
     * @return The object itself.
     */
    public IsIntegerCallback setValue(int value) {
        this.value = value;
        return this;
    }

    /**
     * This function sets the value of the isInteger variable to the value of the isInteger parameter.
     *
     * @param isInteger If true, the callback will only be called if the value is an integer.
     * @return The object itself.
     */
    public IsIntegerCallback setInteger(boolean isInteger) {
        this.isInteger = isInteger;
        return this;
    }

    /**
     * Checks if a string is parsable to an Integer
     *
     * @param s the string
     * @return {@link IsIntegerCallback}
     */
    public static IsIntegerCallback asInteger(String s) {
        IsIntegerCallback callback = new IsIntegerCallback(false, 0);
        if (s == null) {
            return callback;
        }

        try {
            return callback.setInteger(true).setValue(Integer.parseInt(s));
        } catch (Exception ignored) {
            return callback;
        }
    }
}