stockDataRetrieval
Class DownloadManagerNASDAQ

java.lang.Object
  stockDataRetrieval.DownloadManager
      stockDataRetrieval.DownloadManagerNASDAQ

public class DownloadManagerNASDAQ

extends DownloadManager

Controls the behavior and variables for the NASDAQ information - inherits from the DownloadManager

Nested Class Summary

Nested classes inherited from class stockDataRetrieval.DownloadManager

Field Summary

private static java.lang.String	tickerFile the file name where to save this list of tickers once they are parsed from the page
private static java.lang.String	tickerSymbolPage the URL where the list of NASDAQ stocks resides

Fields inherited from class stockDataRetrieval.DownloadManager

Constructor Summary

DownloadManagerNASDAQ(int maxConnections)
Constructor takes the user defined max concurrent connections to be made with Yahoo and calls the super class's constructor with necessary data

Method Summary

void	getStockTickers() Compiles a list of all stock ticker symbols from the given market.
void	getTickerAndCompany(java.lang.String targetURL, java.lang.String embeddedTickerCode, boolean nasdaqRound) Series of commands to download the web page specified, parse it for relevant information, and write the extracted data to a file (dependant on the market it is being harvested from).
private void	writeDataToFile(java.util.ArrayList data, boolean nasdaqState) Write all data gathered from the web page containing ticker/company information to the file "./Data/tickers.txt".

Methods inherited from class stockDataRetrieval.DownloadManager

createDirectory, createDirectoryStructure, getNewsStories, getStockHistoryFiles, getTickerAndCompany, main, writeDataToFile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tickerSymbolPage

private static java.lang.String tickerSymbolPage

the URL where the list of NASDAQ stocks resides

tickerFile

private static java.lang.String tickerFile

the file name where to save this list of tickers once they are parsed from the page

Constructor Detail

DownloadManagerNASDAQ

public DownloadManagerNASDAQ(int maxConnections)

Constructor takes the user defined max concurrent connections to be made with Yahoo and calls the super class's constructor with necessary data

Parameters:

maxConnections - the max concurent connections the user allows = a value of 0 will default to 5 concurrent connections at a time

Method Detail

getStockTickers

public void getStockTickers()

Compiles a list of all stock ticker symbols from the given market.

Delegates responsibility to functions to go to a specific website and repeatedly hit and parse pages containing company name and ticker symbols.

Specified by:

getStockTickers in class DownloadManager

getTickerAndCompany

public void getTickerAndCompany(java.lang.String targetURL,
                                java.lang.String embeddedTickerCode,
                                boolean nasdaqRound)

Series of commands to download the web page specified, parse it for relevant information, and write the extracted data to a file (dependant on the market it is being harvested from).

Parameters:

targetURL - the target URL for which to download all ticker/company names from

embeddedTickerCode - the pattern of the HTML that contains an individual ticker name

writeDataToFile

private void writeDataToFile(java.util.ArrayList data,
                             boolean nasdaqState)

Write all data gathered from the web page containing ticker/company information to the file "./Data/tickers.txt".

Parameters:

data - an containing entries of Ticker/CompanyName information in a String array of size [2]

nasdaqState - used only for the NASDAQ downloads. If true, the data is appended to the growing file. This is because all the NASDAQ stickers are found on 26 individual files - one for every letter.