Application: gvSIG desktop

*

* $Id$

* $Log$

* removed unnecessary imports

*

* Revision 1.6  2006/04/21 11:53:04  jaume

*

*/

/**

 */

package com.iver.cit.gvsig.fmap.layers;

 * As far as this class implements IFMapWMSDimension it uses the same interface

 * and documentation.

 * </p>

 * @author jaume dominguez faus - jaume.dominguez@iver.es

 */

public class TimeDimension implements IFMapWMSDimension {

	static private final byte YEAR_TO_MONTH_FORMAT = 2;

	static private final byte YEAR_TO_DAY_FORMAT   = 3;

	static private final byte FULL_FORMAT          = 4;

    static private final long millisXsec    = 1000;

    static private final long millisXminute = 60 * millisXsec;

    static private final long millisXhour   = 60 * millisXminute;

    static private final long millisXday    = 24 * millisXhour;

    static private final long millisXmonth  = 30 * millisXday;

    // according on the Wikipedia (1 year = 365 days 6 hours 9 minutes 9,7 seconds)

    static private final String digit = "[0-9]";

    static private final String nonZeroDigit = "[1-9]";

    static private final String seconds = "([0-5]"+digit+"((\\.|,)"+digit+digit+")?)";

    static private final String year = "("+digit+digit+")";

    static private final String century = "("+digit+digit+")";

    static private final String floatingPointNumber = "("+digit+"+(\\."+digit+"+)?)";

    private String unit;

	private String unitSymbol;

	private ArrayList valueList;

	private int type;

	private byte format = 0;

    static private final String regexDateExtendedForBCE2 = "B?"+century+year+"-"+months;

    static private final String regexDateExtendedForBCE3 = "B?"+century+year+"-"+months+"-"+days;

    static private final String regexDateExtendedForBCE4 = "B?"+century+year+"-"+months+"-"+days+"(T| )"+time+"Z";

    // Note: in WMS 1.1.0 the suffix Z is optional

        "(" +  regexDateExtendedForBCE1  + "|"

            +  regexDateExtendedForBCE2  + "|"

            +  regexDateExtendedForBCE3  + "|"

            +  regexDateExtendedForBCE4  +      ")";

    static private final String periodMagnitude = "(Y|M|D)";

    static private final String p1 = "(("+digit+")+"+periodMagnitude+")";

    static private final String timeMagnitude = "(H|M|S)";

    static private final String p2 = "("+floatingPointNumber+timeMagnitude+")";

    static private final String regexIntervalTimeDimension =

        "("+regexDateExtendedForBCE+")/("+regexDateExtendedForBCE+")/("+regexPeriod+")";

    static private final String geologicDatasets = "(K|M|G)";

    static private final String regexDateForGeologicDatasets = geologicDatasets+floatingPointNumber;

    /**

     * Creates a new instance of TimeDimension.

     * @param units

        this.unitSymbol = _unitSymbol;

        setExpression(_dimensionExpression);

    }

	public String getName() {

        return "TIME";

    }

    public String getUnit() {

        return unit;

    }

		return (String) valueList.get(valueList.size()-1);

	}

	public String getResolution() {

		return null;

	}

    				float mySecond;

    				String[] s = myValue.split("-");

    				myYear = (s[0].charAt(0)=='B') ? -Integer.parseInt(s[0].substring(1, 5)) : Integer.parseInt(s[0].substring(0, 4));

    				if (myValue.matches(regexDateExtendedForBCE4)){

    					if (s[2].endsWith("Z"))

    						s[2] = s[2].substring(0,s[2].length()-1);

    					s = (s[2].indexOf('T')!=-1) ? s[2].split("T") : s[2].split(" ");

    					myDay = Integer.parseInt(s[0]);

    					// Go with the time

    					s = s[1].split(":");

    					myHour = Integer.parseInt(s[0]);

    					mySecond = (s.length>2) ? Float.parseFloat(s[2]) : 0;

    				} else {

    					myDay = (s.length>2) ? Integer.parseInt(s[2]) : 1;

    					myHour = 0;

    					myMinute = 0;

    					mySecond = 0;

    			} else{

    				// this is a geological date >:-(

    			}

    		} else throw new IllegalArgumentException(myValue);

    	}

    	return null;

			} else if (items[i].matches(regexDateExtendedForBCE3)) {

				upgradeFormat(YEAR_TO_DAY_FORMAT);

				valueList.add(valueOf(items[i]));

				upgradeFormat(FULL_FORMAT);

				valueList.add(valueOf(items[i]));

			} else if (items[i].matches(regexIntervalTimeDimension)) {

				// Analyze and transform this interval expression to a list

				// of values.

				// min value

				String[] s = items[i].split("/");

				if (s[0].matches(regexDateExtendedForBCE1)) {

					upgradeFormat(YEAR_TO_MONTH_FORMAT);

				} else if (s[0].matches(regexDateExtendedForBCE3)) {

					upgradeFormat(YEAR_TO_DAY_FORMAT);

					upgradeFormat(FULL_FORMAT);

				}

				Object minValue = valueOf(s[0]);

				// max value

				if (s[0].matches(regexDateExtendedForBCE1)) {

					upgradeFormat(YEAR_FORMAT);

					upgradeFormat(YEAR_TO_MONTH_FORMAT);

				} else if (s[1].matches(regexDateExtendedForBCE3)) {

					upgradeFormat(YEAR_TO_DAY_FORMAT);

					upgradeFormat(FULL_FORMAT);

				}

				Object maxValue = valueOf(s[1]);

				String period = s[2];

				if (period == null) {

					valueList.add(minValue);

					valueList.add(maxValue);

					continue;

				}

				long x1 = ((GregorianCalendar) maxValue).getTimeInMillis();

				long x0 = ((GregorianCalendar) minValue).getTimeInMillis();

				long distance = x1-x0;

				long step = 0;

				boolean isTimeField = false;

				String val = "";

				for (int j = 0; j < period.length(); j++) {

					if (period.charAt(j) == 'P')

						continue;

					default:

						val += period.charAt(j);

						break;

				}

				// Now that we know the earliest and the latest date and the period

				// between two dates, I'm going to populate the list of values

			}

		}

    }

	/**

	 * Prints a GregorianCalendar value in WMS1.1.1 format.

	 * @param cal

		String myMinute      = (iMinute<10)? "0"+iMinute : ""+iMinute;

		String mySecond      = (iSecond<10)? "0"+iSecond : ""+iSecond;

		int myMilliSecond = cal.get(cal.MILLISECOND);

		String s = null;

		if (format == YEAR_FORMAT)

			s = myYear+"";

/*

 // an old (and good one) version. However, the new version is a bit better.

 public class TimeDimension implements IFMapWMSDimension {

    static private final long millisXsec    = 1000;

    static private final long millisXminute = 60 * millisXsec;

    static private final long millisXday    = 24 * millisXhour;

    static private final long millisXmonth  = 30 * millisXday;

    // according on the Wikipedia (1 year = 365 days 6 hours 9 minutes 9,7 seconds)

    static private final String digit = "[0-9]";

    static private final String nonZeroDigit = "[1-9]";

    static private final String letter = "[a-zA-Z]";

    static private final String months = "(0?"+nonZeroDigit+"|10|11|12)";

    static private final String year = "("+digit+digit+")";

    static private final String century = "("+digit+digit+")";

    static private final String geologicDatasets = "(K|M|G)";

    static private final String floatingPointNumber = "("+digit+"+(\\."+digit+"+)?)";

    static private final String regexDateExtendedForBCE1 = "B?"+century+year+"-";

    static private final String regexDateExtendedForBCE2 = "B?"+century+year+"-"+months;

    static private final String regexDateExtendedForBCE3 = "B?"+century+year+"-"+months+"-"+days;

    static private final String regexDateExtendedForBCE4 = "B?"+century+year+"-"+months+"-"+days+"(T| )"+time+"Z";

    // Note: in WMS 1.1.0 the suffix Z is optional

    // TODO truncated values not yet allowed

        "(" +  regexDateExtendedForBCE1  + "|"

            +  regexDateExtendedForBCE2  + "|"

            +  regexDateExtendedForBCE3  + "|"

            +  regexDateExtendedForBCE4  +      ")";

    static private final String regexDateForGeologicDatasets = geologicDatasets+floatingPointNumber;

    static private final String periodMagnitude = "(Y|M|D)";

    static private final String p1 = "(("+digit+")+"+periodMagnitude+")";

    static private final String timeMagnitude = "(H|M|S)";

    static private final String p2 = "("+floatingPointNumber+timeMagnitude+")";

    static private final String regexTimeDimension =

        "("+regexDateExtendedForBCE+"(,"+regexDateExtendedForBCE+")*|("+regexDateExtendedForBCE+")/("+regexDateExtendedForBCE+")/("+regexPeriod+"))";

    private String name = "TIME";

    private String unit;

    private String unitSymbol;

    private long step; // Distance between two points in milliseconds.

    private int type;

    private boolean compiled = false;

    /**

     * Creates a new instance of TimeDimension.

     * @param units

    public String getName() {

        return name;

    }

    public String getUnit() {

        return unit;

    }

    	} else {

    		return expression;

    	}

    }

    public String getResolution() {

    public boolean isValidValue(String value) {

        return (value.matches(regexDateForGeologicDatasets) || value.matches(regexDateExtendedForBCE));

    }

    public Object valueOf(String value) throws IllegalArgumentException {

    	if (compiled) {

    		// TODO Missing geological dates

    				float mySecond;

    				String[] s = myValue.split("-");

    				myYear = (s[0].charAt(0)=='B')? -Integer.parseInt(s[0].substring(1, 5)) : Integer.parseInt(s[0].substring(0, 4));

    				if (myValue.matches(regexDateExtendedForBCE4)){

    					if (s[2].endsWith("Z"))

    						s[2] = s[2].substring(0,s[2].length()-1);

    					s = (s[2].indexOf('T')!=-1) ? s[2].split("T") : s[2].split(" ");

    					myDay = Integer.parseInt(s[0]);

    					// Go with the time

    					s = s[1].split(":");

    					myHour = Integer.parseInt(s[0]);

    					mySecond = (s.length>2) ? Float.parseFloat(s[2]) : 0;

    				} else {

    					myDay = (s.length>2) ? Integer.parseInt(s[2]) : 1;

    					myHour = 0;

    					myMinute = 0;

    					mySecond = 0;

    			} else{

    				// this is a geological date >:-(

    			}

    		} else throw new IllegalArgumentException(myValue);

    	}

    	return null;

    }

    public String valueAt(int pos) throws ArrayIndexOutOfBoundsException {

    		if (pos<0 || pos>valueCount())

    			throw new ArrayIndexOutOfBoundsException(pos+"(must be >= 0 and <="+valueCount()+")");

    		if (type == SINGLE_VALUE)

    			return expression;

    		if (type == MULTIPLE_VALUE)

    			return expression.split(",")[pos];

    		if (!isGeologic){

    			long newTime = ((GregorianCalendar) minValue).getTimeInMillis();

    			newTime += (step*pos);

        String myMinute      = (iMinute<10)? "0"+iMinute : ""+iMinute;

        String mySecond      = (iSecond<10)? "0"+iSecond : ""+iSecond;

        int myMilliSecond = cal.get(cal.MILLISECOND);

        String s = myYear+"-"+myMonth+"-"+myDay+"T"+myHour+":"+myMinute+":"+mySecond+"."+(myMilliSecond/10)+"Z";

        if (iYear<0)

            s = "B"+s;

    					valueCount = new Integer(0);

    					return valueCount.intValue();

    				}

    				if (!isGeologic){

    					long x1 = ((GregorianCalendar) maxValue).getTimeInMillis();

    					long x0 = ((GregorianCalendar) minValue).getTimeInMillis();

    					long distance = x1-x0;

    					step = 0;

    					boolean isTimeField = false;

    					String val = "";

    					for (int i = 0; i < period.length(); i++) {

    						if (period.charAt(i) == 'P')

    							continue;

    						default:

    							val += period.charAt(i);

    						break;

    					}

    					valueCount = new Integer((int)(distance/step) + 1); // + 1 for the initial point

    				}

    				return valueCount.intValue();

    			}

    		}

    		return valueCount.intValue();

    	}

    	return -1;

        } else  {

            throw new IllegalArgumentException();

        }

        if (expression.indexOf("/")!=-1) {

        	separator = "/";

        	type = INTERVAL;

        	separator = ",";

        	type = SINGLE_VALUE;

        }

        compiled = true;

        String[] s = expression.split(separator);

        minValue = valueOf(s[0]);