001 /**
002 *
003 */
004 package org.wdssii.core;
005
006 import java.util.Date;
007 import java.util.HashMap;
008 import java.util.Iterator;
009 import java.util.Map;
010 import java.util.TimeZone;
011 import java.util.Map.Entry;
012
013 /**
014 * Base class of all the data types that can be displayed.
015 *
016 * @author Lakshman
017 * @version $Id: DataType.java,v 1.10 2007/11/20 21:03:59 lakshman Exp $
018 */
019 public class DataType {
020 protected Location originLocation;
021
022 protected Date startTime;
023
024 protected String typeName;
025
026 protected Map<String, String> attributes = new HashMap<String, String>();
027
028 public static final float MissingData = -99900;
029
030 public static final float RangeFolded = -99901;
031
032 public static final float DataUnavailable = -99902;
033
034 public DataType(Location originLoc, Date startTime, String typeName) {
035 this.originLocation = originLoc;
036 this.startTime = startTime;
037 this.typeName = typeName;
038 }
039
040 /**
041 * copies all the attributes, etc. from the master. The master can change
042 * without affecting this object
043 */
044 public DataType(DataType master) {
045 this.originLocation = master.originLocation;
046 this.startTime = master.startTime;
047 this.typeName = master.typeName;
048 Iterator<Entry<String, String>> entries = master.attributes.entrySet()
049 .iterator();
050 while (entries.hasNext()) {
051 Entry<String, String> entry = entries.next();
052 this.setAttribute(entry.getKey(), entry.getValue());
053 }
054 }
055
056 /** copies all the attributes over */
057 public void addAttributes(DataType example){
058 Iterator<Entry<String,String>> entries = example.attributes.entrySet().iterator();
059 while (entries.hasNext()){
060 Entry<String,String> entry = entries.next();
061 setAttribute(entry.getKey(), entry.getValue());
062 }
063 }
064
065 public void setAttributes(Map<String, String> attr) {
066 attributes = attr;
067 }
068
069 public void setAttribute(String name, String value) {
070 attributes.put(name, value);
071 }
072
073 public Map<String, String> getAttributes() {
074 return attributes;
075 }
076
077 public Object getAttribute(String name) {
078 return attributes.get(name);
079 }
080
081 public Date getTime() {
082 return startTime;
083 }
084
085 /** of the origin. */
086 public Location getLocation() {
087 return originLocation;
088 }
089
090 public String getTypeName() {
091 return typeName;
092 }
093
094 public void setTypeName(String typeName){
095 this.typeName = typeName;
096 }
097
098 public String getUnit(){
099 String unit = attributes.get("Unit");
100 if (unit == null){
101 return "dimensionless";
102 } else {
103 return unit;
104 }
105 }
106
107 public String getUTC() {
108 java.text.DateFormat df = java.text.DateFormat.getDateTimeInstance();
109 df.setTimeZone(TimeZone.getTimeZone("GMT"));
110 return df.format(startTime) + " UTC";
111 }
112
113 public String toStringDB() {
114 String s = "datatype: at " + getUTC() + " for " + originLocation + " ";
115 Iterator<Map.Entry<String,String>> entries = getAttributes().entrySet().iterator();
116 while (entries.hasNext()) {
117 Map.Entry<String,String> entry = entries.next();
118 s += entry.getKey() + "=" + entry.getValue() + " ";
119 }
120 return s;
121 }
122
123 /** Makes a copy of 2D arrays */
124 static float[][] copyOf(float[][] master){
125 float[][] values = new float[ master.length ][ master[0].length ];
126 for (int i=0; i < values.length; ++i){
127 for (int j=0; j < values[0].length; ++j){
128 values[i][j] = master[i][j];
129 }
130 }
131 return values;
132 }
133 }