abstractjbpmdemomiscmethods1testcase.java

jbpm的demo,带有流程设计

/**
 * $Source: /home/ws/rz65/CVS-Repository/WorkflowProjects/JBPM-Demo/src/test/testjbpmdemo/AbstractJBPMDemoMiscMethods1TestCase.java,v $
 * $Revision: 1.1 $
 * $Date: 2005/03/07 12:27:58 $
 * $Author: rz65 $
 *
 * Copyright (c) 2005 Universitaet Karlsruhe (TH) / Rechenzentrum (RZ-UNI-UKA)
 *
 * RZ-UNI-KA makes no representations or warranties about the suitability
 * of this software, either express or implied, including but not limited
 * to the implied warranties of merchantability, fitness for a particular
 * purpose, or non-infringement. RZ-UNI-KA shall not be liable for any
 * damages as a result of using, modifying or distributing this software
 * or its derivatives.
 */

package testjbpmdemo;

import java.util.Random;

import org.apache.commons.lang.RandomStringUtils;

/**
 * This class provides several methods.
 * 
 * <p>
 * 
 * @version $Revision: 1.1 $
 * @author mailto:[e-mail]
 */

public abstract class AbstractJBPMDemoMiscMethods1TestCase extends
		AbstractJBPMDemoMiscMethods0TestCase {

	/**
	 * Builds a test case instance.
	 * 
	 * @param name
	 *            The name of the case.
	 */
	public AbstractJBPMDemoMiscMethods1TestCase(String name) {
		super(name);
	}

	private static Random random = new Random();

	/**
	 * returns the current time.
	 * 
	 * @return The number of milliseconds since 1970/1/1 0:0 UTC.
	 */
	public static long currentTimeMillis() {
		return System.currentTimeMillis();
	}

	/**
	 * Returns a random int.
	 * 
	 * @return A random number.
	 */
	public static int randomInt() {
		return random.nextInt();
	}

	/**
	 * Returns a random int.
	 * 
	 * @param ub
	 *            The upper boundary for the value.
	 * @return A random number.
	 */
	public static int randomInt(int ub) {
		return (random.nextInt() & Integer.MAX_VALUE) % ub;
	}

	/**
	 * Returns a random long.
	 * 
	 * @return A random number.
	 */
	public static long randomLong() {
		return random.nextLong();
	}

	/**
	 * Returns a random long.
	 * 
	 * @param ub
	 *            The upper boundary for the value.
	 * @return A random number.
	 */
	public static long randomLong(long ub) {
		return (random.nextLong() & Long.MAX_VALUE) % ub;
	}

	/**
	 * Returns a random timestamp from the range now - 1 year ... now.
	 * 
	 * @return A random timestamp in milliseconds since 1970/1/1 0:0 UTC.
	 */
	public static long randomTimeMillis() {
		return randomTimeMillis(1000L * 86400L * 365L);
	}

	/**
	 * Returns a random timestamp in the past.
	 * 
	 * @param ub
	 *            The maximum interval length towards the past.
	 * @return A random timestamp in milliseconds since 1970/1/1 0:0 UTC.
	 */
	public static long randomTimeMillis(long ub) {
		return System.currentTimeMillis() - randomLong(ub);
	}

	/**
	 * Returns a random double.
	 * 
	 * @return A random number.
	 */
	public static double randomDouble() {
		return random.nextDouble();
	}

	/**
	 * Returns a random double.
	 * 
	 * @param ub
	 *            The upper boundary for the value.
	 * @return A random number.
	 */
	public static double randomDouble(double ub) {
		return ub * random.nextDouble();
	}

	/**
	 * Returns a random float.
	 * 
	 * @return A random number.
	 */
	public static float randomFloat() {
		return random.nextFloat();
	}

	/**
	 * Returns a random float.
	 * 
	 * @param ub
	 *            The upper boundary for the value.
	 * @return A random number.
	 */
	public static float randomFloat(float ub) {
		return ub * random.nextFloat();
	}

	/**
	 * Returns a random upper case alphanumeric string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomUpperCaseAlphanumeric(int n) {
		String s = RandomStringUtils.randomAlphanumeric(n);
		return s.toUpperCase();
	}

	/**
	 * Returns a random lower case alphanumeric string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomLowerCaseAlphanumeric(int n) {
		String s = RandomStringUtils.randomAlphanumeric(n);
		return s.toLowerCase();
	}

	/**
	 * Returns a random mixed case alphanumeric string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomMixedCaseAlphanumeric(int n) {
		String s = RandomStringUtils.randomAlphanumeric(n);
		return mixedCase(s);
	}

	private static String mixedCase(String s) {
		StringBuffer sb = new StringBuffer();
		int n = s.length();
		for (int i = 0; i < n; i++) {
			char ch = s.charAt(i);
			if (random.nextBoolean()) {
				sb.append(Character.toUpperCase(ch));
			} else {
				sb.append(Character.toLowerCase(ch));
			}
		}
		return sb.toString();
	}

	/**
	 * Returns a random upper case alphabetic string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomUpperCaseAlphabetic(int n) {
		String s = RandomStringUtils.randomAlphabetic(n);
		return s.toUpperCase();
	}

	/**
	 * Returns a random lower case alphabetic string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomLowerCaseAlphabetic(int n) {
		String s = RandomStringUtils.randomAlphabetic(n);
		return s.toLowerCase();
	}

	/**
	 * Returns a random mixed case alphabetic string.
	 * 
	 * @param n
	 *            The lenght of the string.
	 * @return A random string.
	 */
	public static String randomMixedCaseAlphabetic(int n) {
		String s = RandomStringUtils.randomAlphabetic(n);
		return mixedCase(s);
	}
}