com.lazerycode.jmeter.utility.UtilityFunctions Maven / Gradle / Ivy

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package com.lazerycode.jmeter.utility;

import java.io.File;
import java.util.List;
import java.util.Map;

/**
 * Series of useful utility functions to make life easy
 *
 * @author Mark Collin
 */
public final class UtilityFunctions {

    /**
     * Make constructor private as this is a non-instantiable helper classes
     */
    UtilityFunctions() throws InstantiationError {
        throw new InstantiationError("This class is non-instantiable.");
    }

    /**
     * Build a human readable command line from the arguments set by the plugin
     *
     * @param arguments Array of String
     * @return String
     */
    public static String humanReadableCommandLineOutput(List arguments) {
        //TODO investigate removing this, only used in tests
        StringBuilder debugOutput = new StringBuilder();
        for (String argument : arguments) {
            debugOutput.append(argument).append(" ");
        }
        return debugOutput.toString().trim();
    }

    /**
     * Utility function to strip carriage returns out of a String
     *
     * @param value String
     * @return String
     */
    public static String stripCarriageReturns(String value) {
        return value.replaceAll("[\n\r]", "");
    }

    /**
     * Utility function to check if a Map is defined and not empty
     *
     * @param value Map
     * @return boolean
     */
    public static Boolean isNotSet(Map value) {
        return null == value || value.isEmpty();
    }

    /**
     * Utility function to check if a List is defined and not empty
     *
     * @param value List
     * @return boolean
     */
    public static Boolean isNotSet(List value) {
        return null == value || value.isEmpty();
    }

    /**
     * Utility function to check if a String is defined and not empty
     *
     * @param value String
     * @return boolean
     */
    public static Boolean isNotSet(String value) {
        return null == value || value.isEmpty() || value.trim().length() == 0;
    }

    /**
     * Utility function to check if a String is defined and not empty
     *
     * @param value String
     * @return boolean
     */
    public static Boolean isSet(String value) {
        return !isNotSet(value);
    }

    /**
     * Utility function to check if File is defined and not empty
     *
     * @param value File
     * @return boolean
     */
    public static Boolean isNotSet(File value) {
        return null == value || value.toString().isEmpty() || value.toString().trim().length() == 0;
    }
}