001: /*
002: * ObjectStore.java
003: *
004: *
005: * Copyright (c) 2003 Rimfaxe ApS (www.rimfaxe.com).
006: * All rights reserved.
007: *
008: * This package is written by Lars Andersen <lars@rimfaxe.com>
009: * and licensed by Rimfaxe ApS.
010: *
011: * Redistribution and use in source and binary forms, with or without
012: * modification, are permitted provided that the following conditions
013: * are met:
014: *
015: * 1. Redistributions of source code must retain the above copyright
016: * notice, this list of conditions and the following disclaimer.
017: *
018: * 2. Redistributions in binary form must reproduce the above copyright
019: * notice, this list of conditions and the following disclaimer in
020: * the documentation and/or other materials provided with the
021: * distribution.
022: *
023: * 3. The end-user documentation included with the redistribution, if
024: * any, must include the following acknowlegement:
025: * "This product includes software developed by Rimfaxe ApS
026: (www.rimfaxe.com)"
027: * Alternately, this acknowlegement may appear in the software itself,
028: * if and wherever such third-party acknowlegements normally appear.
029: *
030: * 4. The names "Rimfaxe", "Rimfaxe Software", "Lars Andersen" and
031: * "Rimfaxe WebServer" must not be used to endorse or promote products
032: * derived from this software without prior written permission. For written
033: * permission, please contact info@rimfaxe.com
034: *
035: * 5. Products derived from this software may not be called "Rimfaxe"
036: * nor may "Rimfaxe" appear in their names without prior written
037: * permission of the Rimfaxe ApS.
038: *
039: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
040: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
041: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
042: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
043: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
044: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
045: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
046: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
047: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
048: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
049: * SUCH DAMAGE.
050: *
051: */
052:
053: package com.rimfaxe.webserver;
054:
055: import java.util.*;
056:
057: /**
058: *
059: * @author Lars Andersen
060: */
061: public class ObjectStore {
062: Configuration conf = new Configuration();
063:
064: /** Handle ObjectStore as a singleton */
065: public static ObjectStore instance;
066:
067: public synchronized static ObjectStore getInstance() {
068: if (instance == null) {
069:
070: instance = new ObjectStore();
071:
072: }
073: return instance;
074: }
075:
076: public synchronized void createPool() {
077: for (int i = 0; i < 10; i++) {
078: handlers.addElement(createHandler());
079: }
080: }
081:
082: public Handler createHandler() {
083: //System.out.println("\n\nCreating new Handler\n\n");
084: Handler h = new Handler(conf);
085: return h;
086: }
087:
088: Vector handlers = null;
089:
090: /** Creates a new instance of ObjectStore */
091: public ObjectStore() {
092:
093: handlers = new Vector();
094: }
095:
096: public synchronized Handler getHandler() {
097: if (handlers.size() == 0) {
098: Handler h = createHandler();
099: return h;
100: } else {
101: Handler h = (Handler) handlers.remove(0);
102: if (h.getAge() > (5 * 60 * 60 * 1000))
103: h = createHandler();
104: else
105: h.reset();
106: return h;
107: }
108: }
109:
110: public synchronized void putHandler(Handler h) {
111: handlers.addElement(h);
112: }
113:
114: public static Handler checkoutHandler() {
115: return getInstance().getHandler();
116: }
117:
118: public static void checkinHandler(Handler h) {
119: getInstance().putHandler(h);
120: }
121:
122: public static Configuration getConfiguration() {
123: return getInstance().conf;
124: }
125:
126: public static void setConfiguration(Configuration conf) {
127: getInstance().conf = conf;
128: }
129:
130: public int getNumberOfHandlers() {
131: return handlers.size();
132: }
133:
134: public static int getSize() {
135: return getInstance().getNumberOfHandlers();
136: }
137:
138: }
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