File	Doc	Category	Size	Date	Package
Config.java	API Doc	Apache Lucene 2.1.0	10782	Wed Feb 14 10:46:14 GMT 2007	org.apache.lucene.benchmark.byTask.utils

Config

• java.lang.Object

Fields Summary
private static final String	NEW_LINE
private int	roundNumber
private Properties	props
private HashMap	valByRound
private HashMap	colForValByRound
private String	algorithmText

Constructors Summary
public Config(File algFile) Read config from file containing both algorithm and config properties. param algFile file containing both algorithm and config properties. throws IOException // read alg file to array of lines ArrayList lines = new ArrayList(); BufferedReader r = new BufferedReader(new FileReader(algFile)); int lastConfigLine=0; for (String line = r.readLine(); line!=null; line=r.readLine()) { lines.add(line); if (line.indexOf('=")>0) { lastConfigLine = lines.size(); } } r.close(); // copy props lines to string StringBuffer sb = new StringBuffer(); for (int i=0; i<lastConfigLine; i++) { sb.append(lines.get(i)); sb.append(NEW_LINE); } // read props from string this.props = new Properties(); props.load(new ByteArrayInputStream(sb.toString().getBytes())); if (Boolean.valueOf(props.getProperty("print.props","true")).booleanValue()) { printProps(); } // copy algorithm lines sb = new StringBuffer(); for (int i=lastConfigLine; i<lines.size(); i++) { sb.append(lines.get(i)); sb.append(NEW_LINE); } algorithmText = sb.toString();
public Config(Properties props) Create config without algorithm - usefull for a programmatic perf test. param props - configuration properties. throws IOException this.props = props; if (Boolean.valueOf(props.getProperty("print.props","true")).booleanValue()) { printProps(); }

Methods Summary
public java.lang.String	get(java.lang.String name, java.lang.String dflt) Return a string property. param name name of property. param dflt default value. return a string property. return props.getProperty(name,dflt);
public int	get(java.lang.String name, int dflt) Return an int property. If the property contain ":", e.g. "10:100:5", it is interpreted as array of ints. It is extracted once, on first call to get() it, and a by-round-value is returned. param name name of property param dflt default value return a int property. // use value by round if already parsed int vals[] = (int[]) valByRound.get(name); if (vals != null) { return vals[roundNumber % vals.length]; } // done if not by round String sval = props.getProperty(name,""+dflt); if (sval.indexOf(":")<0) { return Integer.parseInt(sval); } // first time this prop is extracted by round int k = sval.indexOf(":"); String colName = sval.substring(0,k); sval = sval.substring(k+1); colForValByRound.put(name,colName); vals = propToIntArray(sval); valByRound.put(name,vals); return vals[roundNumber % vals.length];
public boolean	get(java.lang.String name, boolean dflt) Return a boolean property. If the property contain ":", e.g. "true.true.false", it is interpreted as array of boleans. It is extracted once, on first call to get() it, and a by-round-value is returned. param name name of property param dflt default value return a int property. // use value by round if already parsed boolean vals[] = (boolean[]) valByRound.get(name); if (vals != null) { return vals[roundNumber % vals.length]; } // done if not by round String sval = props.getProperty(name,""+dflt); if (sval.indexOf(":")<0) { return Boolean.valueOf(sval).booleanValue(); } // first time this prop is extracted by round int k = sval.indexOf(":"); String colName = sval.substring(0,k); sval = sval.substring(k+1); colForValByRound.put(name,colName); vals = propToBooleanArray(sval); valByRound.put(name,vals); return vals[roundNumber % vals.length];
public java.lang.String	getAlgorithmText() return Returns the algorithmText. return algorithmText;
public java.lang.String	getColsNamesForValsByRound() return names of params set by round, for reports title if (colForValByRound.size()==0) { return ""; } StringBuffer sb = new StringBuffer(); for (Iterator it = colForValByRound.keySet().iterator(); it.hasNext();) { String name = (String) it.next(); String colName = (String) colForValByRound.get(name); sb.append(" ").append(colName); } return sb.toString();
public java.lang.String	getColsValuesForValsByRound(int roundNum) return values of params set by round, for reports lines. if (colForValByRound.size()==0) { return ""; } StringBuffer sb = new StringBuffer(); for (Iterator it = colForValByRound.keySet().iterator(); it.hasNext();) { String name = (String) it.next(); String colName = (String) colForValByRound.get(name); String template = " "+colName; if (roundNum<0) { // just append blanks sb.append(Format.formatPaddLeft("-",template)); } else { // append actual values, for that round Object a = valByRound.get(name); if (a instanceof int[]) { int ai[] = (int[]) a; int n = roundNum % ai.length; sb.append(Format.format(ai[n],template)); } else { boolean ab[] = (boolean[]) a; int n = roundNum % ab.length; sb.append(Format.formatPaddLeft(""+ab[n],template)); } } } return sb.toString();
public int	getRoundNumber() return the round number. return roundNumber;
public int	newRound() Increment the round number, for config values that are extracted by round number. return the new round number. roundNumber++; // log changes in values if (valByRound.size()>0) { StringBuffer sb = new StringBuffer("--> Round ").append(roundNumber-1).append("-->").append(roundNumber).append(": "); for (Iterator iter = valByRound.keySet().iterator(); iter.hasNext();) { String name = (String) iter.next(); Object a = valByRound.get(name); if (a instanceof int[]) { int ai[] = (int[]) a; int n1 = (roundNumber-1)%ai.length; int n2 = roundNumber%ai.length; sb.append(" ").append(name).append(":").append(ai[n1]).append("-->").append(ai[n2]); } else { boolean ab[] = (boolean[]) a; int n1 = (roundNumber-1)%ab.length; int n2 = roundNumber%ab.length; sb.append(" ").append(name).append(":").append(ab[n1]).append("-->").append(ab[n2]); } } System.out.println(); System.out.println(sb.toString()); System.out.println(); } return roundNumber;
private void	printProps() System.out.println("------------> config properties:"); for (Iterator it = props.keySet().iterator(); it.hasNext();) { String propName = (String) it.next(); System.out.println(propName + " = " + props.getProperty(propName)); } System.out.println("-------------------------------");
private boolean[]	propToBooleanArray(java.lang.String s) if (s.indexOf(":")<0) { return new boolean [] { Boolean.valueOf(s).booleanValue() }; } ArrayList a = new ArrayList(); StringTokenizer st = new StringTokenizer(s,":"); while (st.hasMoreTokens()) { String t = st.nextToken(); a.add(new Boolean(t)); } boolean res[] = new boolean[a.size()]; for (int i=0; i<a.size(); i++) { res[i] = ((Boolean) a.get(i)).booleanValue(); } return res;
private int[]	propToIntArray(java.lang.String s) if (s.indexOf(":")<0) { return new int [] { Integer.parseInt(s) }; } ArrayList a = new ArrayList(); StringTokenizer st = new StringTokenizer(s,":"); while (st.hasMoreTokens()) { String t = st.nextToken(); a.add(new Integer(t)); } int res[] = new int[a.size()]; for (int i=0; i<a.size(); i++) { res[i] = ((Integer) a.get(i)).intValue(); } return res;
public void	set(java.lang.String name, java.lang.String value) Set a property. Note: once a multiple values property is set, it can no longer be modified. param name name of property. param value either single or multiple propery value (multple values are separated by ":") throws Exception if (valByRound.get(name) != null) { throw new Exception("Cannot modify a multi value property!"); } props.setProperty(name,value);