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org.python.core.util

public Class StringCounter

extends Object
Class Inheritance
Imports
java.io.PrintStream, java.util.ArrayList, .HashMap, .LinkedHashMap, .Map
Not for application use, this class may be used to count how many times a String occurs a point in the runtime. We use this to investigate optimisations of the handling of strings in the runtime, principally to avoid checks for byte-nature where that is already known.

Field Summary

Modifier and TypeField and Description
private static HashMap<String, Integer>
counts

Constructor Summary

AccessConstructor and Description
public
StringCounter()

Method Summary

Modifier and TypeMethod and Description
public synchronized void
count(String
to count
s)

Count this occurrence.

public synchronized Map<String, Integer>

Returns:

counts of the top n strings.
top(int
number of counts to retrieve
n)

Report the top n counts.

public void
top(int n, PrintStream out)

Report the top n counts.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

countsback to summary
private static HashMap<String, Integer> counts

Constructor Detail

StringCounterback to summary
public StringCounter()

Method Detail

countback to summary
public synchronized void count(String s)

Count this occurrence.

Parameters
s:String

to count

topback to summary
public synchronized Map<String, Integer> top(int n)

Report the top n counts.

Parameters
n:int

number of counts to retrieve

Returns:Map<String, Integer>

counts of the top n strings.

topback to summary
public void top(int n, PrintStream out)

Report the top n counts.