FastNamingProperties

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org.jnp.interfaces
Class FastNamingProperties

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          java.util.Properties
              org.jnp.interfaces.FastNamingProperties

All Implemented Interfaces:: java.lang.Cloneable, java.util.Map, java.io.Serializable

class FastNamingProperties
extends java.util.Properties

This class exists because the JNDI API set wisely uses java.util.Properties which extends Hashtable, a threadsafe class. The NamingParser uses a static instance, making it a global source of contention. This results in a huge scalability problem, which can be seen in ECPerf, as sometimes half of the worker threads are stuck waiting for this stupid lock, sometimes themselves holdings global locks, e.g. to the AbstractInstanceCache.

Version:: $Revision: 1.1.4.1 $

Nested Class Summary

Nested classes inherited from class java.util.Hashtable

Nested classes inherited from class java.util.Map

java.util.Map.Entry

Field Summary

Fields inherited from class java.util.Properties

defaults

Fields inherited from class java.util.Hashtable

Constructor Summary

(package private) FastNamingProperties()


Method Summary

void clear()
          Clears the hashtable so it has no keys.

java.lang.Object clone()
          Returns a shallow clone of this Hashtable.

boolean contains(java.lang.Object o)
          Returns true if this Hashtable contains a value o, such that o.equals(value).

boolean containsKey(java.lang.Object o)
          Returns true if the supplied object equals() a key in this Hashtable.

boolean containsValue(java.lang.Object o)
          Returns true if this Hashtable contains a value o, such that o.equals(value).

java.util.Enumeration elements()
          Return an enumeration of the values of this table.

java.util.Set entrySet()
          Returns a "set view" of this Hashtable's entries.

boolean equals(java.lang.Object o)
          Returns true if this Hashtable equals the supplied Object o.

java.lang.Object get(java.lang.Object o)
          Return the value in this Hashtable associated with the supplied key, or null if the key maps to nothing.

java.lang.String getProperty(java.lang.String s)
          Gets the property with the specified key in this property list.

java.lang.String getProperty(java.lang.String name, java.lang.String defaultValue)
          Gets the property with the specified key in this property list.

int hashCode()
          Returns the hashCode for this Hashtable.

boolean isEmpty()
          Returns true if there are no key-value mappings currently in this table.

java.util.Enumeration keys()
          Return an enumeration of the keys of this table.

java.util.Set keySet()
          Returns a "set view" of this Hashtable's keys.

void list(java.io.PrintStream ps)
          Prints the key/value pairs to the given print stream.

void list(java.io.PrintWriter ps)
          Prints the key/value pairs to the given print writer.

void load(java.io.InputStream is)
          Reads a property list from an input stream.

java.util.Enumeration propertyNames()
          Returns an enumeration of all keys in this property list, including the keys in the default property list.

java.lang.Object put(java.lang.Object o1, java.lang.Object o2)
          Puts the supplied value into the Map, mapped by the supplied key.

void putAll(java.util.Map m)
          Copies all elements of the given map into this hashtable.

java.lang.Object remove(java.lang.Object o)
          Removes from the table and returns the value which is mapped by the supplied key.

java.lang.Object setProperty(java.lang.String s1, java.lang.String s2)
          Adds the given key/value pair to this properties.

int size()
          Returns the number of key-value mappings currently in this hashtable.

java.lang.String toString()
          Converts this Hashtable to a String, surrounded by braces, and with key/value pairs listed with an equals sign between, separated by a comma and space.

java.util.Collection values()
          Returns a "collection view" (or "bag view") of this Hashtable's values.

Methods inherited from class java.util.Properties

loadFromXML, save, store, storeToXML, storeToXML

Methods inherited from class java.util.Hashtable

rehash

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FastNamingProperties

FastNamingProperties()

Method Detail

setProperty

public java.lang.Object setProperty(java.lang.String s1,
                                    java.lang.String s2)

Description copied from class: java.util.Properties

Adds the given key/value pair to this properties. This calls the hashtable method put.

load

public void load(java.io.InputStream is)
          throws java.io.IOException

Description copied from class: java.util.Properties

Reads a property list from an input stream. The stream should have the following format:
An empty line or a line starting with # or ! is ignored. An backslash (\) at the end of the line makes the line continueing on the next line (but make sure there is no whitespace after the backslash). Otherwise, each line describes a key/value pair.
The chars up to the first whitespace, = or : are the key. You can include this caracters in the key, if you precede them with a backslash (\). The key is followed by optional whitespaces, optionally one = or :, and optionally some more whitespaces. The rest of the line is the resource belonging to the key.
Escape sequences \t, \n, \r, \\, \", \', \!, \#, \ (a space), and unicode characters with the \\uxxxx notation are detected, and converted to the corresponding single character.

# This is a comment
key     = value
k\:5      \ a string starting with space and ending with newline\n
# This is a multiline specification; note that the value contains
# no white space.
weekdays: Sunday,Monday,Tuesday,Wednesday,\\
          Thursday,Friday,Saturday
# The safest way to include a space at the end of a value:
label   = Name:\\u0020

getProperty

public java.lang.String getProperty(java.lang.String s)

Description copied from class: java.util.Properties

Gets the property with the specified key in this property list. If the key is not found, the default property list is searched. If the property is not found in the default, null is returned.

getProperty

public java.lang.String getProperty(java.lang.String name,
                                    java.lang.String defaultValue)

Description copied from class: java.util.Properties

Gets the property with the specified key in this property list. If the key is not found, the default property list is searched. If the property is not found in the default, the specified defaultValue is returned.

propertyNames

public java.util.Enumeration propertyNames()

Description copied from class: java.util.Properties

Returns an enumeration of all keys in this property list, including the keys in the default property list.

list

public void list(java.io.PrintStream ps)

Description copied from class: java.util.Properties

Prints the key/value pairs to the given print stream. This is mainly useful for debugging purposes.

list

public void list(java.io.PrintWriter ps)

Description copied from class: java.util.Properties

Prints the key/value pairs to the given print writer. This is mainly useful for debugging purposes.