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Posted to dev@ws.apache.org by di...@apache.org on 2005/03/09 17:04:57 UTC
cvs commit: ws-site/targets/ws-fx/wss4j/docs/xref/org/apache/ws/security/conversation/sessions package-frame.html package-summary.html SessionMonitor.html
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<div id="overview"><a href="../../../../../../../apidocs/org/apache/ws/security/conversation/sessions/SessionMonitor.html">View Javadoc</a></div><pre>
<a name="1" href="#1">1</a> <em class="comment">/*</em>
<a name="2" href="#2">2</a> <em class="comment"> * Copyright 2003-2004 The Apache Software Foundation.</em>
<a name="3" href="#3">3</a> <em class="comment"> *</em>
<a name="4" href="#4">4</a> <em class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="5" href="#5">5</a> <em class="comment"> * you may not use this file except in compliance with the License.</em>
<a name="6" href="#6">6</a> <em class="comment"> * You may obtain a copy of the License at</em>
<a name="7" href="#7">7</a> <em class="comment"> *</em>
<a name="8" href="#8">8</a> <em class="comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="9" href="#9">9</a> <em class="comment"> *</em>
<a name="10" href="#10">10</a> <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="11" href="#11">11</a> <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="12" href="#12">12</a> <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="13" href="#13">13</a> <em class="comment"> * See the License for the specific language governing permissions and</em>
<a name="14" href="#14">14</a> <em class="comment"> * limitations under the License.</em>
<a name="15" href="#15">15</a> <em class="comment"> *</em>
<a name="16" href="#16">16</a> <em class="comment"> */</em>
<a name="17" href="#17">17</a>
<a name="18" href="#18">18</a> <strong>package</strong> <a href="../../../../../../org/apache/ws/security/conversation/sessions/package-summary.html">org.apache.ws.security.conversation.sessions</a>;
<a name="19" href="#19">19</a>
<a name="20" href="#20">20</a> <em>/**<em>*</em></em>
<a name="21" href="#21">21</a> <em> * Monitor for the conversation sessions</em>
<a name="22" href="#22">22</a> <em> * @author Ruchith Fernando</em>
<a name="23" href="#23">23</a> <em> * @version 1.0</em>
<a name="24" href="#24">24</a> <em> */</em>
<a name="25" href="#25">25</a>
<a name="26" href="#26">26</a> <strong>import</strong> org.apache.commons.logging.Log;
<a name="27" href="#27">27</a> <strong>import</strong> org.apache.commons.logging.LogFactory;
<a name="28" href="#28">28</a> <strong>import</strong> org.apache.ws.security.conversation.ConversationException;
<a name="29" href="#29">29</a> <strong>import</strong> org.apache.ws.security.conversation.ConversationSession;
<a name="30" href="#30">30</a> <strong>import</strong> org.apache.ws.security.util.Loader;
<a name="31" href="#31">31</a>
<a name="32" href="#32">32</a> <strong>import</strong> java.net.URL;
<a name="33" href="#33">33</a> <strong>import</strong> java.util.Enumeration;
<a name="34" href="#34">34</a> <strong>import</strong> java.util.Hashtable;
<a name="35" href="#35">35</a> <strong>import</strong> java.util.Properties;
<a name="36" href="#36">36</a> <strong>import</strong> java.util.Vector;
<a name="37" href="#37">37</a>
<a name="38" href="#38">38</a> <strong>public</strong> <strong>class</strong> <a href="../../../../../../org/apache/ws/security/conversation/sessions/SessionMonitor.html">SessionMonitor</a> <strong>extends</strong> Thread {
<a name="39" href="#39">39</a>
<a name="40" href="#40">40</a> <strong>private</strong> Log log = LogFactory.getLog(SessionMonitor.<strong>class</strong>.getName());
<a name="41" href="#41">41</a>
<a name="42" href="#42">42</a> <em>/**<em>*</em></em>
<a name="43" href="#43">43</a> <em> * Session lifetime in milliseconds</em>
<a name="44" href="#44">44</a> <em> */</em>
<a name="45" href="#45">45</a> <strong>private</strong> <strong>long</strong> sessionLifetime;
<a name="46" href="#46">46</a>
<a name="47" href="#47">47</a> <em>/**<em>*</em></em>
<a name="48" href="#48">48</a> <em> * </em>
<a name="49" href="#49">49</a> <em> */</em>
<a name="50" href="#50">50</a> <strong>private</strong> <strong>long</strong> reapPeriodicity;
<a name="51" href="#51">51</a>
<a name="52" href="#52">52</a> <em>/**<em>*</em></em>
<a name="53" href="#53">53</a> <em> *</em>
<a name="54" href="#54">54</a> <em> */</em>
<a name="55" href="#55">55</a> <strong>private</strong> Hashtable sessionTable;
<a name="56" href="#56">56</a>
<a name="57" href="#57">57</a> <em>/**<em>*</em></em>
<a name="58" href="#58">58</a> <em> *</em>
<a name="59" href="#59">59</a> <em> */</em>
<a name="60" href="#60">60</a> <strong>private</strong> Vector expiredSessions = <strong>new</strong> Vector();
<a name="61" href="#61">61</a>
<a name="62" href="#62">62</a> <strong>private</strong> <strong>long</strong> lastReaped = System.currentTimeMillis();
<a name="63" href="#63">63</a>
<a name="64" href="#64">64</a> <strong>public</strong> <a href="../../../../../../org/apache/ws/security/conversation/sessions/SessionMonitor.html">SessionMonitor</a>(Hashtable sessionTable)
<a name="65" href="#65">65</a> throws <a href="../../../../../../org/apache/ws/security/conversation/ConversationException.html">ConversationException</a> {
<a name="66" href="#66">66</a> <em class="comment">//this.setPriority(Thread.MAX_PRIORITY);</em>
<a name="67" href="#67">67</a> <strong>try</strong> {
<a name="68" href="#68">68</a> Properties prop = getProperties(<span class="string">"SessionMonitor.properties"</span>);
<a name="69" href="#69">69</a> <strong>this</strong>.reapPeriodicity =
<a name="70" href="#70">70</a> Long.parseLong(prop.getProperty(<span class="string">"org.apache.ws.security.converasation.session.reapPeriodicity"</span>));
<a name="71" href="#71">71</a> <strong>this</strong>.sessionLifetime =
<a name="72" href="#72">72</a> Long.parseLong(prop.getProperty(<span class="string">"org.apache.ws.security.converasation.session.sessionLifetime"</span>));
<a name="73" href="#73">73</a> log.debug(<span class="string">"Reap periodicity from prop file: "</span> + <strong>this</strong>.reapPeriodicity);
<a name="74" href="#74">74</a> log.debug(<span class="string">"Session lifetime from prop file: "</span> + <strong>this</strong>.sessionLifetime);
<a name="75" href="#75">75</a> } <strong>catch</strong> (Exception e) {
<a name="76" href="#76">76</a> log.debug(<span class="string">"SessionMonitor: Cannot load SessionMonitor.properties using defaults: \n"</span>
<a name="77" href="#77">77</a> + <span class="string">"org.apache.ws.security.converasation.session.reapInterval="</span>
<a name="78" href="#78">78</a> + 60000
<a name="79" href="#79">79</a> + <span class="string">"org.apache.ws.security.converasation.session.sessionLifetime"</span>
<a name="80" href="#80">80</a> + 1800000);
<a name="81" href="#81">81</a> <strong>this</strong>.reapPeriodicity = 60000;
<a name="82" href="#82">82</a> <strong>this</strong>.sessionLifetime = 1800000;
<a name="83" href="#83">83</a> }
<a name="84" href="#84">84</a> <strong>this</strong>.sessionTable = sessionTable;
<a name="85" href="#85">85</a> log.debug(<span class="string">"Session monitor created"</span>);
<a name="86" href="#86">86</a> }
<a name="87" href="#87">87</a>
<a name="88" href="#88">88</a> <em>/**<em>*</em></em>
<a name="89" href="#89">89</a> <em> * STOLEN FROM org.apache.ws.security.components.crypto.CryptoFactory</em>
<a name="90" href="#90">90</a> <em> * Gets the properties for SessionMonitor</em>
<a name="91" href="#91">91</a> <em> * The functions loads the property file via</em>
<a name="92" href="#92">92</a> <em> * {@link Loader.getResource(String)}, thus the property file</em>
<a name="93" href="#93">93</a> <em> * should be accesible via the classpath</em>
<a name="94" href="#94">94</a> <em> *</em>
<a name="95" href="#95">95</a> <em> * @param propFilename the properties file to load</em>
<a name="96" href="#96">96</a> <em> * @return a <code>Properties</code> object loaded from the filename</em>
<a name="97" href="#97">97</a> <em> */</em>
<a name="98" href="#98">98</a> <strong>private</strong> Properties getProperties(String propFilename) {
<a name="99" href="#99">99</a> Properties properties = <strong>new</strong> Properties();
<a name="100" href="#100">100</a> <strong>try</strong> {
<a name="101" href="#101">101</a> URL url = Loader.getResource(propFilename);
<a name="102" href="#102">102</a> properties.load(url.openStream());
<a name="103" href="#103">103</a> log.debug(<span class="string">"SessionMonitor.properties found"</span>);
<a name="104" href="#104">104</a> } <strong>catch</strong> (Exception e) {
<a name="105" href="#105">105</a> log.debug(<span class="string">"Cannot find SessionMonitor property file: "</span> + propFilename);
<a name="106" href="#106">106</a> <strong>throw</strong> <strong>new</strong> RuntimeException(<span class="string">"SessionMonitor: Cannot load properties: "</span> + propFilename);
<a name="107" href="#107">107</a> }
<a name="108" href="#108">108</a> <strong>return</strong> properties;
<a name="109" href="#109">109</a> }
<a name="110" href="#110">110</a>
<a name="111" href="#111">111</a> <strong>public</strong> <strong>void</strong> run() {
<a name="112" href="#112">112</a> <strong>while</strong> (<strong>true</strong>) {
<a name="113" href="#113">113</a> <strong>long</strong> now = System.currentTimeMillis();
<a name="114" href="#114">114</a> log.debug(<span class="string">"Diff: "</span> + (now - (lastReaped + reapPeriodicity)));
<a name="115" href="#115">115</a> <strong>if</strong> (now > (lastReaped + reapPeriodicity)) {
<a name="116" href="#116">116</a> log.debug(<span class="string">"Special:Ruchith:Waiting to get session"</span>);
<a name="117" href="#117">117</a> <strong>synchronized</strong> (<strong>this</strong>.sessionTable) {
<a name="118" href="#118">118</a> log.debug(<span class="string">"Checking sessions"</span>);
<a name="119" href="#119">119</a> Enumeration keys = <strong>this</strong>.sessionTable.keys();
<a name="120" href="#120">120</a> <strong>while</strong> (keys.hasMoreElements()) {
<a name="121" href="#121">121</a> String tempId = (String) keys.nextElement();
<a name="122" href="#122">122</a> <a href="../../../../../../org/apache/ws/security/conversation/ConversationSession.html">ConversationSession</a> session =
<a name="123" href="#123">123</a> (<a href="../../../../../../org/apache/ws/security/conversation/ConversationSession.html">ConversationSession</a>) <strong>this</strong>.sessionTable.get(tempId);
<a name="124" href="#124">124</a> <strong>synchronized</strong> (session) {
<a name="125" href="#125">125</a> log.debug(<span class="string">"Session: "</span> + tempId);
<a name="126" href="#126">126</a> <strong>if</strong> (<strong>this</strong>.isExpirable(session))
<a name="127" href="#127">127</a> <strong>this</strong>.expireSession(tempId);
<a name="128" href="#128">128</a> }
<a name="129" href="#129">129</a> }
<a name="130" href="#130">130</a> }
<a name="131" href="#131">131</a> lastReaped = now;
<a name="132" href="#132">132</a> }
<a name="133" href="#133">133</a> <strong>try</strong> {
<a name="134" href="#134">134</a> sleep(reapPeriodicity / 2);
<a name="135" href="#135">135</a> } <strong>catch</strong> (InterruptedException e) {
<a name="136" href="#136">136</a> log.debug(e.getMessage());
<a name="137" href="#137">137</a> }
<a name="138" href="#138">138</a>
<a name="139" href="#139">139</a> }
<a name="140" href="#140">140</a>
<a name="141" href="#141">141</a> }
<a name="142" href="#142">142</a>
<a name="143" href="#143">143</a> <strong>private</strong> <strong>boolean</strong> isExpirable(<a href="../../../../../../org/apache/ws/security/conversation/ConversationSession.html">ConversationSession</a> session) {
<a name="144" href="#144">144</a> <strong>long</strong> lastTouched = session.getLastTouched();
<a name="145" href="#145">145</a> <strong>if</strong> ((lastTouched + <strong>this</strong>.sessionL<strong>if</strong>etime) < System.currentTimeMillis())
<a name="146" href="#146">146</a> <strong>return</strong> <strong>true</strong>;
<a name="147" href="#147">147</a> <strong>else</strong>
<a name="148" href="#148">148</a> <strong>return</strong> false;
<a name="149" href="#149">149</a> }
<a name="150" href="#150">150</a>
<a name="151" href="#151">151</a> <strong>private</strong> <strong>void</strong> expireSession(String identifier) {
<a name="152" href="#152">152</a> log.debug(<span class="string">"Expirign session "</span> + identifier);
<a name="153" href="#153">153</a> <strong>this</strong>.sessionTable.remove(identifier);
<a name="154" href="#154">154</a> <strong>this</strong>.expiredSessions.add(identifier);
<a name="155" href="#155">155</a> }
<a name="156" href="#156">156</a>
<a name="157" href="#157">157</a> <strong>public</strong> Vector getExpiredSessionIds() {
<a name="158" href="#158">158</a> <strong>return</strong> (Vector) <strong>this</strong>.expiredSessions.clone();
<a name="159" href="#159">159</a> }
<a name="160" href="#160">160</a>
<a name="161" href="#161">161</a> <strong>public</strong> Hashtable getLiveSessions() {
<a name="162" href="#162">162</a> <strong>return</strong> (Hashtable) <strong>this</strong>.sessionTable.clone();
<a name="163" href="#163">163</a> }
<a name="164" href="#164">164</a>
<a name="165" href="#165">165</a> }
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