core/src/main/java/org/apache/hadoop/chukwa/hicc/TimeHandler.java - chukwa - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package org.apache.hadoop.chukwa.hicc;


 import javax.servlet.http.*;

 import org.apache.hadoop.chukwa.util.XssFilter;

 import java.util.Calendar;
 import java.util.TimeZone;
 import java.util.StringTokenizer;
 import java.text.SimpleDateFormat;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import com.mdimension.jchronic.Chronic;
 import com.mdimension.jchronic.Options;
 import com.mdimension.jchronic.utils.Span;

 public class TimeHandler {
   private HttpSession session = null;
   private TimeZone tz = null;
   private long start = 0;
   private long end = 0;
   private String startDate = null;
   private String startHour = null;
   private String startMin = null;
   private String endDate = null;
   private String endHour = null;
   private String endMin = null;
   private String startS = null;
   private String endS = null;
   private XssFilter xf = null;
     private static Log log=LogFactory.getLog(TimeHandler.class);

   public TimeHandler(HttpServletRequest request) {
     this.tz = TimeZone.getTimeZone("UTC");
     init(request);
   }

   public TimeHandler(HttpServletRequest request, String tz) {
     if (tz != null) {
       this.tz = TimeZone.getTimeZone(tz);
     } else {
       this.tz = TimeZone.getTimeZone("UTC");
     }
     init(request);
   }

     /*
      * Using the Chronic library to parse the english string
      * and convert it to a long (millis seconds since 1970)
      */
     public long parseDateShorthand(String d) {
 	Calendar now = Calendar.getInstance();
 	long l=now.getTimeInMillis();
 	d=d.trim();
 	if (d.compareToIgnoreCase("now")!=0) {
 	    Options options= new Options(false);
 	    options.setCompatibilityMode(true);
 	    options.setNow(now);
 	    try {
 		Span span = Chronic.parse(d, options);
 		l = span.getBegin()*1000;
 	    } catch (Exception e) {
 		// exception when parsing
 		log.error("parse error for: "+d);
 	    }
 	}

 	/*
 	 * debug
 	 */
 	/*
         SimpleDateFormat sf =
             new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
 	Date ld=new Date(l);

 	log.error("Convert:"+d+" to "+Long.toString(l)+" - "+sf.format(ld)+ "-"+ld.getTime());
 	*/

 	return l;
     }

     public void parsePeriodValue(String period) {
 	Calendar now = Calendar.getInstance();
 	this.start = now.getTimeInMillis();
 	this.end = now.getTimeInMillis();
 	if (period.equals("last1hr")) {
 	    start = end - (60 * 60 * 1000);
 	} else if (period.equals("last2hr")) {
 	    start = end - (2 * 60 * 60 * 1000);
 	} else if (period.equals("last3hr")) {
 	    start = end - (3 * 60 * 60 * 1000);
 	} else if (period.equals("last6hr")) {
 	    start = end - (6 * 60 * 60 * 1000);
 	} else if (period.equals("last12hr")) {
 	    start = end - (12 * 60 * 60 * 1000);
 	} else if (period.equals("last24hr")) {
 	    start = end - (24 * 60 * 60 * 1000);
 	} else if (period.equals("last7d")) {
 	    start = end - (7 * 24 * 60 * 60 * 1000);
 	} else if (period.equals("last30d")) {
 	    start = end - (30L * 24 * 60 * 60 * 1000);
   } else if (period.equals("lastyear")) {
     start = end - (365L * 24 * 60 * 60 * 1000);
 	} else if (period.startsWith("custom;")) {

 	    // default value is between 2 days ago and now
 	    String startString="2 days ago";
 	    String endString="now";

 	    // tokenize the value to "custom;2 days ago;now"
 	    StringTokenizer st=new StringTokenizer(period,";");
 	    if (st.hasMoreTokens()) {
 		st.nextToken(); // skip the first token
 		if (st.hasMoreTokens()) {
 		    startString=st.nextToken();
 		    if (st.hasMoreTokens()) {
 			endString=st.nextToken();
 		    }
 		}
 	    }

 	    // parse the parameter strings
 	    start = parseDateShorthand(startString);
 	    end = parseDateShorthand(endString);
 	}
     }

   public void init(HttpServletRequest request) {
     xf = new XssFilter(request);
     Calendar now = Calendar.getInstance();
     this.session = request.getSession();
     if (request.getParameter("time_type") == null
         && session.getAttribute("time_type") == null
         && session.getAttribute("period") == null
         && request.getParameter("period") == null) {
       end = now.getTimeInMillis();
       start = end - 60 * 60 * 1000;
       session.setAttribute("period", "last1hr");
       session.setAttribute("time_type", "last");
       session.setAttribute("start", "" + start);
       session.setAttribute("end", "" + end);
     } else if (request.getParameter("period") != null
         && !"".equals(request.getParameter("period"))) {
       String period = xf.getParameter("period");
       parsePeriodValue(period);
     } else if (request.getParameter("start") != null
         && request.getParameter("end") != null) {
       start = Long.parseLong(request.getParameter("start"));
       end = Long.parseLong(request.getParameter("end"));
     } else if ("range".equals(session.getAttribute("time_type"))) {
       start = Long.parseLong((String) session.getAttribute("start"));
       end = Long.parseLong((String) session.getAttribute("end"));
     } else if ("last".equals(session.getAttribute("time_type"))
         && session.getAttribute("period") != null) {
       String period = (String) session.getAttribute("period");
       parsePeriodValue(period);
     }

     SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm");
     SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd");
     SimpleDateFormat formatHour = new SimpleDateFormat("HH");
     SimpleDateFormat formatMin = new SimpleDateFormat("mm");

     formatter.setTimeZone(this.tz);
     formatDate.setTimeZone(this.tz);
     formatHour.setTimeZone(this.tz);
     formatMin.setTimeZone(this.tz);

     startS = formatter.format(start);
     this.startDate = formatDate.format(start);
     this.startHour = formatHour.format(start);
     this.startMin = formatMin.format(start);
     endS = formatter.format(end);
     this.endDate = formatDate.format(end);
     this.endHour = formatHour.format(end);
     this.endMin = formatMin.format(end);
   }

   public String getStartDate(String format) {
     SimpleDateFormat formatter = new SimpleDateFormat(format);
     formatter.setTimeZone(this.tz);
     return formatter.format(this.start);
   }

   public String getStartDate() {
     return this.startDate;
   }

   public String getStartHour() {
     return this.startHour;
   }

   public String getStartMinute() {
     return this.startMin;
   }

   public String getStartTimeText() {
     return this.startS;
   }

   public long getStartTime() {
     return start;
   }

   public String getEndDate(String format) {
     SimpleDateFormat formatter = new SimpleDateFormat(format);
     formatter.setTimeZone(this.tz);
     return formatter.format(this.end);
   }

   public String getEndDate() {
     return this.endDate;
   }

   public String getEndHour() {
     return this.endHour;
   }

   public String getEndMinute() {
     return this.endMin;
   }

   public String getEndTimeText() {
     return this.endS;
   }

   public long getEndTime() {
     return end;
   }

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package org.apache.hadoop.chukwa.hicc;


	import javax.servlet.http.*;

	import org.apache.hadoop.chukwa.util.XssFilter;

	import java.util.Calendar;
	import java.util.TimeZone;
	import java.util.StringTokenizer;
	import java.text.SimpleDateFormat;
	import org.apache.commons.logging.Log;
	import org.apache.commons.logging.LogFactory;
	import com.mdimension.jchronic.Chronic;
	import com.mdimension.jchronic.Options;
	import com.mdimension.jchronic.utils.Span;

	public class TimeHandler {
	private HttpSession session = null;
	private TimeZone tz = null;
	private long start = 0;
	private long end = 0;
	private String startDate = null;
	private String startHour = null;
	private String startMin = null;
	private String endDate = null;
	private String endHour = null;
	private String endMin = null;
	private String startS = null;
	private String endS = null;
	private XssFilter xf = null;
	private static Log log=LogFactory.getLog(TimeHandler.class);

	public TimeHandler(HttpServletRequest request) {
	this.tz = TimeZone.getTimeZone("UTC");
	init(request);
	}

	public TimeHandler(HttpServletRequest request, String tz) {
	if (tz != null) {
	this.tz = TimeZone.getTimeZone(tz);
	} else {
	this.tz = TimeZone.getTimeZone("UTC");
	}
	init(request);
	}

	/*
	* Using the Chronic library to parse the english string
	* and convert it to a long (millis seconds since 1970)
	*/
	public long parseDateShorthand(String d) {
	Calendar now = Calendar.getInstance();
	long l=now.getTimeInMillis();
	d=d.trim();
	if (d.compareToIgnoreCase("now")!=0) {
	Options options= new Options(false);
	options.setCompatibilityMode(true);
	options.setNow(now);
	try {
	Span span = Chronic.parse(d, options);
	l = span.getBegin()*1000;
	} catch (Exception e) {
	// exception when parsing
	log.error("parse error for: "+d);
	}
	}

	/*
	* debug
	*/
	/*
	SimpleDateFormat sf =
	new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
	Date ld=new Date(l);

	log.error("Convert:"+d+" to "+Long.toString(l)+" - "+sf.format(ld)+ "-"+ld.getTime());
	*/

	return l;
	}

	public void parsePeriodValue(String period) {
	Calendar now = Calendar.getInstance();
	this.start = now.getTimeInMillis();
	this.end = now.getTimeInMillis();
	if (period.equals("last1hr")) {
	start = end - (60 * 60 * 1000);
	} else if (period.equals("last2hr")) {
	start = end - (2 * 60 * 60 * 1000);
	} else if (period.equals("last3hr")) {
	start = end - (3 * 60 * 60 * 1000);
	} else if (period.equals("last6hr")) {
	start = end - (6 * 60 * 60 * 1000);
	} else if (period.equals("last12hr")) {
	start = end - (12 * 60 * 60 * 1000);
	} else if (period.equals("last24hr")) {
	start = end - (24 * 60 * 60 * 1000);
	} else if (period.equals("last7d")) {
	start = end - (7 * 24 * 60 * 60 * 1000);
	} else if (period.equals("last30d")) {
	start = end - (30L * 24 * 60 * 60 * 1000);
	} else if (period.equals("lastyear")) {
	start = end - (365L * 24 * 60 * 60 * 1000);
	} else if (period.startsWith("custom;")) {

	// default value is between 2 days ago and now
	String startString="2 days ago";
	String endString="now";

	// tokenize the value to "custom;2 days ago;now"
	StringTokenizer st=new StringTokenizer(period,";");
	if (st.hasMoreTokens()) {
	st.nextToken(); // skip the first token
	if (st.hasMoreTokens()) {
	startString=st.nextToken();
	if (st.hasMoreTokens()) {
	endString=st.nextToken();
	}
	}
	}

	// parse the parameter strings
	start = parseDateShorthand(startString);
	end = parseDateShorthand(endString);
	}
	}

	public void init(HttpServletRequest request) {
	xf = new XssFilter(request);
	Calendar now = Calendar.getInstance();
	this.session = request.getSession();
	if (request.getParameter("time_type") == null
	&& session.getAttribute("time_type") == null
	&& session.getAttribute("period") == null
	&& request.getParameter("period") == null) {
	end = now.getTimeInMillis();
	start = end - 60 * 60 * 1000;
	session.setAttribute("period", "last1hr");
	session.setAttribute("time_type", "last");
	session.setAttribute("start", "" + start);
	session.setAttribute("end", "" + end);
	} else if (request.getParameter("period") != null
	&& !"".equals(request.getParameter("period"))) {
	String period = xf.getParameter("period");
	parsePeriodValue(period);
	} else if (request.getParameter("start") != null
	&& request.getParameter("end") != null) {
	start = Long.parseLong(request.getParameter("start"));
	end = Long.parseLong(request.getParameter("end"));
	} else if ("range".equals(session.getAttribute("time_type"))) {
	start = Long.parseLong((String) session.getAttribute("start"));
	end = Long.parseLong((String) session.getAttribute("end"));
	} else if ("last".equals(session.getAttribute("time_type"))
	&& session.getAttribute("period") != null) {
	String period = (String) session.getAttribute("period");
	parsePeriodValue(period);
	}

	SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm");
	SimpleDateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd");
	SimpleDateFormat formatHour = new SimpleDateFormat("HH");
	SimpleDateFormat formatMin = new SimpleDateFormat("mm");

	formatter.setTimeZone(this.tz);
	formatDate.setTimeZone(this.tz);
	formatHour.setTimeZone(this.tz);
	formatMin.setTimeZone(this.tz);

	startS = formatter.format(start);
	this.startDate = formatDate.format(start);
	this.startHour = formatHour.format(start);
	this.startMin = formatMin.format(start);
	endS = formatter.format(end);
	this.endDate = formatDate.format(end);
	this.endHour = formatHour.format(end);
	this.endMin = formatMin.format(end);
	}

	public String getStartDate(String format) {
	SimpleDateFormat formatter = new SimpleDateFormat(format);
	formatter.setTimeZone(this.tz);
	return formatter.format(this.start);
	}

	public String getStartDate() {
	return this.startDate;
	}

	public String getStartHour() {
	return this.startHour;
	}

	public String getStartMinute() {
	return this.startMin;
	}

	public String getStartTimeText() {
	return this.startS;
	}

	public long getStartTime() {
	return start;
	}

	public String getEndDate(String format) {
	SimpleDateFormat formatter = new SimpleDateFormat(format);
	formatter.setTimeZone(this.tz);
	return formatter.format(this.end);
	}

	public String getEndDate() {
	return this.endDate;
	}

	public String getEndHour() {
	return this.endHour;
	}

	public String getEndMinute() {
	return this.endMin;
	}

	public String getEndTimeText() {
	return this.endS;
	}

	public long getEndTime() {
	return end;
	}

	}