[Jrobin-commits] src/org/jrobin/core RrdCacher.java,1.1,1.2 Sample.java,1.8,1.9

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Update of /cvsroot/jrobin/src/org/jrobin/core
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv10051/org/jrobin/core

Modified Files:
	RrdCacher.java Sample.java 
Log Message:
Faster RRD cacher (5-10%). StressTest should be faster.

Index: RrdCacher.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/core/RrdCacher.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** RrdCacher.java	20 May 2004 10:34:00 -0000	1.1
--- RrdCacher.java	2 Jun 2004 08:55:48 -0000	1.2
***************
*** 26,106 ****
  package org.jrobin.core;
  
! class RrdCacher {
! 	private Object cache = null;
  
! 	boolean setInt(int value) {
! 		if(isCached(value)) {
  			return false;
  		}
  		else {
! 			cache = new Integer(value);
! 			return true;
  		}
  	}
  
! 	boolean setLong(long value) {
! 		if(isCached(value)) {
  			return false;
  		}
  		else {
! 			cache = new Long(value);
! 			return true;
  		}
  	}
  
! 	boolean setDouble(double value) {
! 		if(isCached(value)) {
  			return false;
  		}
  		else {
! 			cache = new Double(value);
! 			return true;
  		}
  	}
  
! 	boolean setString(String value) {
! 		if(isCached(value)) {
  			return false;
  		}
  		else {
! 			cache = value;
! 			return true;
  		}
  	}
  
! 	boolean isEmpty() {
! 		return cache == null;
! 	}
! 
! 	int getInt() {
! 		return ((Integer) cache).intValue();
! 	}
! 
! 	long getLong() {
! 		return ((Long) cache).longValue();
! 	}
! 
! 	double getDouble() {
! 		return ((Double) cache).doubleValue();
  	}
  
! 	String getString() {
! 		return (String) cache;
  	}
  
! 	private boolean isCached(int value) {
! 		return cache != null && getInt() == value;
  	}
  
! 	private boolean isCached(long value) {
! 		return cache != null && getLong() == value;
  	}
  
! 	private boolean isCached(double value) {
! 		return cache != null && getDouble() == value;
  	}
  
- 	private boolean isCached(String value) {
- 		return cache != null && getString().equals(value);
- 	}
  }
--- 26,95 ----
  package org.jrobin.core;
  
! final class RrdCacher {
! 	private boolean cached = false;
! 	private int i;
! 	private long l;
! 	private double d;
! 	private String s;
  
! 	final boolean setInt(int value) {
! 		if (cached && value == i) {
  			return false;
  		}
  		else {
! 			i = value;
! 			return cached = true;
  		}
  	}
  
! 	final boolean setLong(long value) {
! 		if(cached && value == l) {
  			return false;
  		}
  		else {
! 			l = value;
! 			return cached = true;
  		}
  	}
  
! 	final boolean setDouble(double value) {
! 		if(cached && value == d) {
  			return false;
  		}
  		else {
! 			d = value;
! 			return cached = true;
  		}
  	}
  
! 	final boolean setString(String value) {
! 		if(cached && value.equals(s)) {
  			return false;
  		}
  		else {
! 			s = value;
! 			return cached = true;
  		}
  	}
  
! 	final boolean isEmpty() {
! 		return !cached;
  	}
  
! 	final int getInt() {
! 		return i;
  	}
  
! 	final long getLong() {
! 		return l;
  	}
  
! 	final double getDouble() {
! 		return d;
  	}
  
! 	final String getString() {
! 		return s;
  	}
  
  }

Index: Sample.java
===================================================================
RCS file: /cvsroot/jrobin/src/org/jrobin/core/Sample.java,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** Sample.java	28 May 2004 10:22:47 -0000	1.8
--- Sample.java	2 Jun 2004 08:55:48 -0000	1.9
***************
*** 99,103 ****
  			return;
  		}
! 		throw new RrdException("Sample index " + i + " out of bounds");
  	}
  
--- 99,103 ----
  			return;
  		}
! 		throw new RrdException("Sample datasource index " + i + " out of bounds");
  	}
  
***************
*** 164,190 ****
  	 *
  	 * @param timeAndValues String made by concatenating sample timestamp with corresponding
! 	 * data source values delmited with colons. For example:
! 	 * <code>1005234132:12.2:35.6:U:24.5</code>
  	 * @throws RrdException Thrown if too many datasource values are supplied
  	 */
  	public void set(String timeAndValues) throws RrdException {
! 		StringTokenizer st = new StringTokenizer(timeAndValues, ":", false);
! 		int numTokens = st.countTokens();
! 		String[] tokens = new String[numTokens];
! 		for(int i = 0; i < numTokens; i++) {
! 			tokens[i] = st.nextToken();
  		}
! 		long time = Long.parseLong(tokens[0]);
! 		double[] values = new double[numTokens - 1];
! 		for(int i = 0; i < numTokens - 1; i++) {
  			try {
! 				values[i] = Double.parseDouble(tokens[i + 1]);
  			}
! 			catch(NumberFormatException nfe) {
! 				values[i] = Double.NaN;
  			}
  		}
- 		setTime(time);
- 		setValues(values);
  	}
  
--- 164,204 ----
  	 *
  	 * @param timeAndValues String made by concatenating sample timestamp with corresponding
! 	 * data source values delmited with colons. For example:<p>
! 	 * <pre>
! 	 * 1005234132:12.2:35.6:U:24.5
! 	 * NOW:12.2:35.6:U:24.5
! 	 * </pre>
! 	 * 'N' stands for the current timestamp (can be replaced with 'NOW')<p>
! 	 * Method will throw an exception if timestamp is invalid (cannot be parsed as Long, and is not 'N'
! 	 * or 'NOW'). Datasource value which cannot be parsed as 'double' will be silently set to NaN.<p>
  	 * @throws RrdException Thrown if too many datasource values are supplied
  	 */
  	public void set(String timeAndValues) throws RrdException {
! 		StringTokenizer tokenizer = new StringTokenizer(timeAndValues, ":", false);
! 		int n = tokenizer.countTokens();
! 		if(n > values.length + 1) {
! 			throw new RrdException("Invalid number of values specified (found " +
! 				values.length +	", " + dsNames.length + " allowed)");
  		}
! 		String timeToken = tokenizer.nextToken();
! 		try {
! 			time = Long.parseLong(timeToken);
! 		}
! 		catch(NumberFormatException nfe) {
! 			if(timeToken.equalsIgnoreCase("N") || timeToken.equalsIgnoreCase("NOW")) {
! 				time = Util.getTime();
! 			}
! 			else {
! 				throw new RrdException("Invalid sample timestamp: " + timeToken);
! 			}
! 		}
! 		for(int i = 0; tokenizer.hasMoreTokens(); i++) {
  			try {
! 				values[i] = Double.parseDouble(tokenizer.nextToken());
  			}
! 			catch (NumberFormatException nfe) {
! 				// NOP, value is already set to NaN
  			}
  		}
  	}
  
***************
*** 210,215 ****
  	 * </pre>
  	 * @param timeAndValues String made by concatenating sample timestamp with corresponding
! 	 * data source values delmited with colons. For example:
! 	 * <code>1005234132:12.2:35.6:U:24.5</code>
  	 *
  	 * @throws IOException Thrown in case of I/O error.
--- 224,230 ----
  	 * </pre>
  	 * @param timeAndValues String made by concatenating sample timestamp with corresponding
! 	 * data source values delmited with colons. For example:<br>
! 	 * <code>1005234132:12.2:35.6:U:24.5</code><br>
! 	 * <code>NOW:12.2:35.6:U:24.5</code>
  	 *
  	 * @throws IOException Thrown in case of I/O error.