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package org.tigr.microarray.mev.file.agilent; |
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import java.util.Hashtable; |
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import java.util.StringTokenizer; |
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import java.util.Vector; |
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/* |
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* Created on Apr 7, 2004 |
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*/ |
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/** |
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* Represents a single data Line of an Agilent File. |
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* @author vu |
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*/ |
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public class Extract { |
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private static String TAB = "\t"; |
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private String parsedLine; |
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/** |
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* Builds a new tab-delim data line by looking up the column data for each of the |
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* column headers in 'aHeaders'. Stores it in private variable 'parsedLine'. |
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* @param headers The Header line of the Agilent File |
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* @param line The Data line of the Agilent File |
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* @param columnDef The columns to be pulled out of the Agilent File |
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* @param fudger The String to be added as a "FUDGE" |
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*/ |
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public void parseLineByHeaders(String headers, String line, String columnDef, String fudger) { |
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//System.out.println("ParsingLine()"); |
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StringBuffer sb = new StringBuffer(); |
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|
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//get a Hashtable where the column data can be found using the Header as a key |
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Hashtable ht = this.hashify(headers, line); |
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|
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//Break the columnDef into Tokens |
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StringTokenizer st = new StringTokenizer(columnDef, Extract.TAB); |
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|
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//Look up each header in Hashtable, fudge if necessary |
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while(st.hasMoreTokens()) { |
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String header = st.nextToken(); |
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|
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//find it |
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String element = (String) ht.get(header); |
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if(element == null) { |
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//couldn't find the header, so fudge it with 'fudger' |
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sb.append(fudger); |
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sb.append(Extract.TAB); |
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} else { |
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sb.append(element); |
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sb.append(Extract.TAB); |
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} |
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|
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}//end i |
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this.parsedLine = sb.toString(); |
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}//end parseLineByHeader() |
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/** |
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* |
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* @param indices |
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* @param line |
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* @param fudger |
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*/ |
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public void parseLineByIndex(String indices, String line, String fudger) { |
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StringBuffer sb = new StringBuffer(); |
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|
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StringTokenizer stLine = new StringTokenizer(line, Extract.TAB); |
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Vector vToken = new Vector(); |
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while(stLine.hasMoreTokens()) { |
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String token = stLine.nextToken(); |
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vToken.add(token); |
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} |
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|
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StringTokenizer stIndex = new StringTokenizer(indices, Extract.TAB); |
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while(stIndex.hasMoreTokens()) { |
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String token = stIndex.nextToken(); |
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if(token.equals(MeVerizer.FUDGE)) { |
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sb.append(fudger); |
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sb.append(Extract.TAB); |
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} else { |
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Integer IToken = new Integer(token); |
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int iToken = IToken.intValue(); |
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String s = (String) vToken.elementAt(iToken); |
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sb.append(s); |
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sb.append(Extract.TAB); |
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} |
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}//end while |
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this.parsedLine = sb.toString(); |
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}//end parseLineByIndex() |
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/** |
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* Creates a Hashtable where the column headers are the keys for the column data |
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* @param headers Tab-delimited Header line of Agilent file |
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* @param line Tab-delimited Data line of Agilent file |
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* @return |
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*/ |
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private Hashtable hashify(String headers, String line) { |
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Hashtable htReturn = new Hashtable(); |
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|
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StringTokenizer stLine = new StringTokenizer(line, "\t"); |
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StringTokenizer stHeader = new StringTokenizer(headers, "\t"); |
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|
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while(stHeader.hasMoreTokens()) { |
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String header = stHeader.nextToken(); |
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String element = stLine.nextToken(); |
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htReturn.put(header, element); |
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//System.out.println(header + "\t" + element); |
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} |
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return htReturn; |
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} |
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/** |
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* Get the new tab-delim data line. |
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* @return Returns the new tab-delim data line |
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*/ |
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public String getParsedLine() { |
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return this.parsedLine; |
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} |
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}//end class |