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/Users/lyon/j4p/src/net/stocks/Quote.java
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1 package net.stocks;
2
3 import utils.StringUtils;
4
5 import java.beans.XMLEncoder;
6 import java.io.BufferedReader;
7 import java.io.ByteArrayOutputStream;
8 import java.io.IOException;
9 import java.io.InputStream;
10 import java.io.InputStreamReader;
11 import java.net.URL;
12 import java.util.Calendar;
13 import java.util.Date;
14 import java.util.StringTokenizer;
15 import java.util.Vector;
16
17 public class Quote {
18 private String symbol;
19 private float price;
20 private Date date;
21 private float change;
22 private float open;
23 private float bid;
24 private float ask;
25 private long volume;
26
27 public Quote(String s) {
28 // assume that the quote is of the form
29 // symbol price date time (20 min. Delay) change open bid ask volume
30 // "AAPL",55.31,"11/3/2004","4:00pm",+1.81,54.44,56.11,53.99,21504764
31 StringTokenizer st = new StringTokenizer(s, ",");
32 symbol = getSymbol(st);
33 price = getPrice(st);
34 date = getDate(getSymbol(st), getSymbol(st));
35 change = getPrice(st);
36 open = getPrice(st);
37 bid = getPrice(st);
38 ask = getPrice(st);
39 volume = getLong(st);
40 }
41
42 private static String getSymbol(StringTokenizer st) {
43 return trimQuotes(st.nextToken());
44 }
45
46 private float getPrice(StringTokenizer st) {
47 final String s = getSymbol(st);
48 if (s.indexOf("N/A") == -1)
49 return Float.valueOf(s).floatValue();
50 return Float.NaN;
51 }
52
53 private static long getLong(StringTokenizer st) {
54 final String s = getSymbol(st);
55 return Long.valueOf(s).longValue();
56 }
57
58 private static int getInt(StringTokenizer st) {
59 final String s = getSymbol(st);
60 return Integer.valueOf(s).intValue();
61 }
62
63 private static int getInt(String s) {
64 return Integer.valueOf(s).intValue();
65 }
66
67 /*
68 return a string with no quotes
69 */
70 private static String trimQuotes(String s) {
71 return StringUtils.replaceAll(s, "\"", "");
72 }
73
74 /*
75 Parse two strings of the form:
76 "11/3/2004","4:00pm"
77 */
78 private static Date getDate(String dateString, String time) {
79 StringTokenizer st = new StringTokenizer(dateString, "/");
80 int month = getInt(getSymbol(st).substring(1));
81 int date = getInt(st);
82 int year = getInt(getSymbol(st).substring(0, 4));
83 st = new StringTokenizer(time, ":");
84 int hour = getInt(st);
85 String minuteString = st.nextToken("");
86 boolean isPM = minuteString.indexOf("AM") == -1;
87 if (isPM) hour = hour + 12; //use a 24 hour clock
88 int minute = getMin(minuteString);
89 Calendar c = Calendar.getInstance();
90 // the month is zero based
91 // i.e., Jan = 0.
92 c.set(year, month - 1, date, hour, minute);
93 return c.getTime();
94 }
95
96 private static int getMin(String minuteString) {
97 String ms = StringUtils.replaceAll(minuteString.toUpperCase(), ":", "");
98 ms = StringUtils.replaceAll(ms, "PM", "");
99 ms = StringUtils.replaceAll(ms, "AM", "");
100 ms = StringUtils.replaceAll(ms, "\"", "");
101 return Integer.valueOf("00").intValue();
102 }
103
104 public static void main(String args[]) {
105 testQuoteSystem();
106 }
107
108 public static void print(Object o[]) {
109 for (int i = 0; i < o.length; i++)
110 System.out.println(o[i]);
111 }
112
113 public String toXml() {
114 ByteArrayOutputStream baos = new ByteArrayOutputStream();
115 XMLEncoder e = new XMLEncoder(baos);
116 e.writeObject(this);
117 e.flush();
118 return baos.toString();
119 }
120
121 public String toString() {
122 return symbol + " " + date + " " + price + " " + volume;
123 }
124
125 private static void testQuoteSystem() {
126 Vector s = new Vector();
127 s.addElement("aapl");
128 s.addElement("xlnx");
129 s.addElement("altr");
130 s.addElement("mot");
131 s.addElement("cy");
132 s.addElement("crus");
133 s.addElement("sfa");
134 s.addElement("adbe");
135 s.addElement("msft");
136 s.addElement("sunw");
137 String urlString = makeQuoteURLString(s);
138 //System.out.println(urlString);
139 Vector url = getUrl(urlString);
140 //printVector(url);
141 print(getQuotes(url));
142 }
143
144 public static Quote makeQuote(String symbol) {
145 Vector s = new Vector();
146 s.addElement(symbol);
147 String urlString = makeQuoteURLString(s);
148 Vector url = getUrl(urlString);
149 Quote[] quotes = getQuotes(url);
150 for (int i = 0; i < quotes.length; i++)
151 if (quotes[i] != null) return quotes[i];
152 return null;
153 }
154
155 public static Quote[] getQuotes(Vector v) {
156 Quote qa [] = new Quote[v.size()];
157 for (int i = 0; i < qa.length; i++) {
158 String s = v.elementAt(i).toString();
159 if (s.indexOf(",") == -1) continue;
160 qa[i] = new Quote(s);
161 }
162 return qa;
163 }
164
165 public static void printVector(Vector v) {
166 for (int i = 0; i < v.size(); i++) {
167 System.out.println(v.elementAt(i));
168 }
169 }
170
171 public static Vector getUrl(String _URLString) {
172 Vector contents = new Vector();
173 BufferedReader in = null;
174 try {
175 URL URLString = new URL(_URLString);
176 InputStream is = URLString.openStream();
177 in = new BufferedReader(new
178 InputStreamReader(is));
179 String line;
180 contents.addElement("Copyright 1999 by Doug Lyon http://www.docjava.com");
181 contents.addElement("symbol\tprice\tdate\ttime" +
182 " (20 min. Delay)\t change\t open\t bid\t ask\t volume");
183 while (null != (line = in.readLine()))
184 contents.addElement(line);
185 } catch (Exception e) {
186 e.printStackTrace();
187 } finally {
188 try {
189 if (in != null) in.close();
190 } catch (IOException e) {
191 e.printStackTrace();
192 }
193 }
194 return contents;
195 }
196
197 public static String makeQuoteURLString(Vector symbols) {
198 String symbolsString = "";
199 for (int i = 0; i < symbols.size(); i++) {
200 String symbol = (String) symbols.elementAt(i);
201 symbolsString += ((i != 0) ? "," : "") + symbol.toUpperCase();
202 }
203 return
204 "http://216.109.124.128/download/javasoft.beans?SYMBOLS=" +
205 symbolsString +
206 "&format=sl";
207 }
208
209 public String getSymbol() {
210 return symbol;
211 }
212
213 public float getPrice() {
214 return price;
215 }
216
217 public Date getDate() {
218 return date;
219 }
220
221 public float getChange() {
222 return change;
223 }
224
225 public float getOpen() {
226 return open;
227 }
228
229 public float getBid() {
230 return bid;
231 }
232
233 public float getAsk() {
234 return ask;
235 }
236
237 public long getVolume() {
238 return volume;
239 }
240 }
241