Java tutorial
/* * Copyright 2012 Intuit Inc. All Rights Reserved */ package com.intuit.tank.harness.functions; /* * #%L * Intuit Tank Agent (apiharness) * %% * Copyright (C) 2011 - 2015 Intuit Inc. * %% * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * #L% */ import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.TimeZone; import org.apache.commons.jexl2.JexlContext; import org.apache.commons.lang.StringUtils; import org.apache.log4j.Logger; import com.intuit.tank.harness.logging.LogUtil; import com.intuit.tank.logging.LogEventType; import com.intuit.tank.vm.common.util.ExpressionContextVisitor; /** * JexlDateFunctions functions that operate on dates. * * @author rchalmela */ public class JexlDateFunctions implements ExpressionContextVisitor { private static final Logger LOG = Logger.getLogger(DateFunctions.class); /** * Get the current date. * * @param format * The format of the response (MM-dd-yyyy, MMddyyyy, etc) * @param timezone * the timeZone that the date should be formatted in. * * @return The current date */ public String currentDate(String format, String timezone) { DateFormat formatter = getFormatter(format); if (StringUtils.isNotBlank(timezone)) { formatter.setTimeZone(TimeZone.getTimeZone(timezone)); } return formatter.format(new Date()); } /** * Get the current date. * * @param format * The format of the response (MM-dd-yyyy, MMddyyyy, etc) * @return The current date */ public String currentDate(String format) { DateFormat formatter = getFormatter(format); return formatter.format(new Date()); } /** * Gets the current Time in miliseconds since January 1, 1970. (Unix epoch time) * * @return the time. */ public String currentTimeMilis() { return Long.toString(System.currentTimeMillis()); } /** * Gets DateFormat based on the string input * * @param format * @return the correct DateFormat */ private DateFormat getFormatter(String format) { DateFormat formatter = null; try { formatter = StringUtils.isEmpty(format) ? DateFormat.getDateInstance() : new SimpleDateFormat(format); } catch (Exception e) { // bad format LOG.warn(LogUtil.getLogMessage( "Error parsing date format string: " + e.toString() + ". Using default format.", LogEventType.System)); formatter = DateFormat.getDateInstance(); } return formatter; } /** * Get the date x days from now. * * @param days * The number of days to add (negative number to remove) * @param format * The format of the response (MM-dd-yyyy, MMddyyyy, etc) * @return The new date */ public String addDays(Object odays, String format) { int days = FunctionHandler.getInt(odays); Calendar now = Calendar.getInstance(); now.add(Calendar.DAY_OF_YEAR, days); DateFormat formatter = getFormatter(format); return formatter.format(now.getTime()); } /* * (non-Javadoc) * * @see com.intuit.tank.common.util.ExpressionContextVisitor#visit(org.apache.commons.jexl2.JexlContext) */ @Override public void visit(JexlContext context) { context.set("dateFunctions", this); } }