| 1 | <html><head><META http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><title>Catalina Functional Specifications - Administrative Apps - Administered Objects</title><meta value="Craig McClanahan" name="author"><meta value="craigmcc@apache.org" name="email"></head><body vlink="#525D76" alink="#525D76" link="#525D76" text="#000000" bgcolor="#ffffff"><table cellspacing="0" width="100%" border="0"><!--PAGE HEADER--><tr><td><!--PROJECT LOGO--><a href="http://tomcat.apache.org/"><img border="0" alt=" |
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| 2 | Catalina Functional Specifications |
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| 3 | " align="right" src="../images/tomcat.gif"></a></td><td><font face="arial,helvetica,sanserif"><h1>Apache Tomcat 6.0</h1></font></td><td><!--APACHE LOGO--><a href="http://www.apache.org/"><img border="0" alt="Apache Logo" align="right" src="../images/asf-logo.gif"></a></td></tr></table><table cellspacing="4" width="100%" border="0"><!--HEADER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><tr><!--LEFT SIDE NAVIGATION--><td nowrap="true" valign="top" width="20%"><p><strong>Links</strong></p><ul><li><a href="../index.html">Docs Home</a></li><li><a href="index.html">Functional Specs</a></li></ul><p><strong>Administrative Apps</strong></p><ul><li><a href="fs-admin-apps.html">Overall Requirements</a></li><li><a href="mbean-names.html">Tomcat MBean Names</a></li><li><a href="fs-admin-objects.html">Administered Objects</a></li><li><a href="fs-admin-opers.html">Supported Operations</a></li></ul><p><strong>Internal Servlets</strong></p><ul><li><a href="fs-default.html">Default Servlet</a></li><li><a href="fs-invoker.html">Invoker Servlet</a></li></ul><p><strong>Realm Implementations</strong></p><ul><li><a href="fs-jdbc-realm.html">JDBC Realm</a></li><li><a href="fs-jndi-realm.html">JNDI Realm</a></li><li><a href="fs-memory-realm.html">Memory Realm</a></li></ul></td><!--RIGHT SIDE MAIN BODY--><td align="left" valign="top" width="80%"><table cellspacing="4" width="100%" border="0"><tr><td valign="top" align="left"><h1>Catalina Functional Specifications</h1><h2>Administrative Apps - Administered Objects</h2></td><td nowrap="true" valign="top" align="right"><small><a href="printer/fs-admin-objects.html"><img alt="Printer Friendly Version" border="0" src="../images/printer.gif"><br>print-friendly<br>version |
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| 4 | </a></small></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Administered Objects Overview"><strong>Administered Objects Overview</strong></a></font></td></tr><tr><td><blockquote> |
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| 5 | |
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| 6 | <p>This document defines the <em>Administered Objects</em> that represent |
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| 7 | the internal architectural components of the Catalina servlet container. |
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| 8 | Associated with each is a set of <a href="fs-admin-opers.html">Supported |
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| 9 | Operations</a> that can be performed when the administrative application is |
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| 10 | "focused" on a particular configurable object.</p> |
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| 11 | |
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| 12 | <p>The following Administered Objects are defined:</p> |
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| 13 | <ul> |
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| 14 | <li><a href="#Access Logger">Access Logger</a></li> |
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| 15 | <li><a href="#Connector">Connector</a></li> |
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| 16 | <li><a href="#Context">Context</a></li> |
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| 17 | <li><a href="#Default Context">Default Context</a></li> |
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| 18 | <li><a href="#Default Deployment Descriptor">Default Deployment Descriptor</a></li> |
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| 19 | <li><a href="#Engine">Engine</a></li> |
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| 20 | <li><a href="#Environment Entry">Environment Entry</a></li> |
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| 21 | <li><a href="#Host">Host</a></li> |
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| 22 | <li><a href="#JDBC Resource">JDBC Resource</a></li> |
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| 23 | <li><a href="#Loader">Loader</a></li> |
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| 24 | <li><a href="#Manager">Manager</a></li> |
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| 25 | <li><a href="#Realm">Realm</a></li> |
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| 26 | <li><a href="#Request Filter">Request Filter</a></li> |
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| 27 | <li><a href="#Server">Server</a></li> |
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| 28 | <li><a href="#Service">Service</a></li> |
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| 29 | </ul> |
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| 30 | |
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| 31 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Access Logger"><strong>Access Logger</strong></a></font></td></tr><tr><td><blockquote> |
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| 32 | |
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| 33 | <p>An <em>Access Logger</em> is an optional <code>Valve</code> that can |
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| 34 | create request access logs in the same formats as those provided by |
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| 35 | web servers. Such access logs are useful input to hit count and user |
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| 36 | access tracking analysis programs. An Access Logger can be attached to |
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| 37 | an <em>Engine</em>, a <em>Host</em>, a <em>Context</em>, or a <em>Default |
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| 38 | Context</em>.</p> |
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| 39 | |
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| 40 | <p>The standard component implementing an <em>Access Logger</em> is |
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| 41 | <code>org.apache.catalina.valves.AccessLogValve</code>. It supports the |
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| 42 | following configurable properties:</p> |
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| 43 | <ul> |
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| 44 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 45 | <li><code>directory</code> - Absolute or relative (to $CATALINA_BASE) path |
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| 46 | of the directory into which access log files are created. |
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| 47 | [logs].</li> |
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| 48 | <li><code>pattern</code> - Pattern string defining the fields to be |
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| 49 | included in the access log output, or "common" for the standard |
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| 50 | access log pattern. See |
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| 51 | <code>org.apache.catalina.valves.AccessLogValve</code> for more |
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| 52 | information. [common]</li> |
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| 53 | <li><code>prefix</code> - Prefix added to the beginning of each log file |
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| 54 | name created by this access logger.</li> |
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| 55 | <li><code>resolveHosts</code> - Should IP addresses be resolved to host |
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| 56 | names in the log? [false]</li> |
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| 57 | <li><code>suffix</code> - Suffix added to the end of each log file name |
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| 58 | created by this access logger.</li> |
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| 59 | </ul> |
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| 60 | |
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| 61 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Connector"><strong>Connector</strong></a></font></td></tr><tr><td><blockquote> |
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| 62 | |
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| 63 | <p>A <em>Connector</em> is the representation of a communications endpoint |
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| 64 | by which requests are received from (and responses returned to) a Tomcat |
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| 65 | client. The administrative applications shall support those connectors |
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| 66 | that are commonly utilized in Tomcat installations, as described in detail |
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| 67 | below.</p> |
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| 68 | |
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| 69 | <p>For standalone use, the standard connector supporting the HTTP/1.1 |
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| 70 | protocol is <code>org.apache.catalina.connectors.http.HttpConnector</code>. |
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| 71 | It supports the following configurable properties:</p> |
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| 72 | <ul> |
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| 73 | <li><code>acceptCount</code> - The maximum queue length of incoming |
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| 74 | connections that have not yet been accepted. [10]</li> |
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| 75 | <li><code>address</code> - For servers with more than one IP address, the |
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| 76 | address upon which this connector should listen. [All Addresses]</li> |
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| 77 | <li><code>bufferSize</code> - Default input buffer size (in bytes) for |
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| 78 | requests created by this Connector. [2048]</li> |
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| 79 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 80 | <li><code>enableLookups</code> - Should we perform DNS lookups on remote |
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| 81 | IP addresses when <code>request.getRemoteHost()</code> is called? |
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| 82 | [true]</li> |
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| 83 | <li><code>maxProcessors</code> - The maximum number of processor threads |
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| 84 | supported by this connector. [20]</li> |
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| 85 | <li><code>minProcessors</code> - The minimum number of processor threads |
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| 86 | to be created at container startup. [5]</li> |
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| 87 | <li><code>port</code> - TCP/IP port number on which this Connector should |
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| 88 | listen for incoming requests. [8080]</li> |
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| 89 | <li><code>proxyName</code> - Host name to be returned when an application |
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| 90 | calls <code>request.getServerName()</code>. [Value of Host: header]</li> |
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| 91 | <li><code>proxyPort</code> - Port number to be returned when an application |
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| 92 | calls <code>request.getServerPort()</code>. [Same as <code>port</code>] |
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| 93 | </li> |
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| 94 | </ul> |
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| 95 | |
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| 96 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Context"><strong>Context</strong></a></font></td></tr><tr><td><blockquote> |
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| 97 | |
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| 98 | <p>A <em>Context</em> is the representation of an individual web application, |
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| 99 | which is associated with a corresponding <em>Host</em>. Note that the |
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| 100 | administrable properties of a <em>Context</em> do <strong>not</strong> |
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| 101 | include any settings from inside the web application deployment descriptor |
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| 102 | for that application.</p> |
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| 103 | |
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| 104 | <p>The standard component implementing a <em>Context</em> is |
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| 105 | <code>org.apache.catalina.core.StandardContext</code>. It supports the |
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| 106 | following configurable properties:</p> |
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| 107 | <ul> |
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| 108 | <li><code>cookies</code> - Should be use cookies for session identifier |
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| 109 | communication? [true]</li> |
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| 110 | <li><code>crossContext</code> - Should calls to |
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| 111 | <code>ServletContext.getServletContext()</code> return the actual |
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| 112 | context responsible for the specified path? [false]</li> |
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| 113 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 114 | <li><code>docBase</code> - The absolute or relative (to the |
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| 115 | <code>appBase</code> of our owning <em>Host</em>) pathname of a |
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| 116 | directory containing an unpacked web application, or of a web |
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| 117 | application archive (WAR) file.</li> |
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| 118 | <li><code>override</code> - Should settings in this <em>Context</em> |
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| 119 | override corresponding settings in the <em>Default Context</em>? |
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| 120 | [false]</li> |
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| 121 | <li><code>path</code> - Context path for this web application, or an empty |
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| 122 | string for the root application of a <em>Host</em>. [Inferred from |
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| 123 | directory or WAR file name]</li> |
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| 124 | <li><code>reloadable</code> - Should Tomcat monitor classes in the |
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| 125 | <code>/WEB-INF/classes</code> directory for changes, and reload the |
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| 126 | application if they occur? [false]</li> |
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| 127 | <li><code>useNaming</code> - Should Tomcat provide a JNDI naming context, |
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| 128 | containing preconfigured entries and resources, corresponding to the |
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| 129 | requirements of the Java2 Enterprise Edition specification? [true]</li> |
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| 130 | <li><code>workDir</code> - Absolute pathname of a scratch directory that is |
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| 131 | provided to this web application. [Automatically assigned relative to |
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| 132 | $CATALINA_BASE/work]</li> |
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| 133 | </ul> |
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| 134 | |
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| 135 | <p>Each <em>Context</em> is owned by a parent <em>Host</em>, and is |
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| 136 | associated with:</p> |
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| 137 | <ul> |
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| 138 | <li>An optional <em>Access Logger</em> that logs all requests processed |
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| 139 | by this web application.</li> |
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| 140 | <li>Zero or more <em>Environment Entries</em> representing environment |
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| 141 | entries for the JNDI naming context associated with a web |
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| 142 | application.</li> |
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| 143 | <li>Zero or more <em>JDBC Resources</em> representing database connection |
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| 144 | pools associated with a web application.</li> |
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| 145 | <li>A <em>Loader</em> representing the web application class loader used |
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| 146 | by this web application.</li> |
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| 147 | <li>A <em>Manager</em> representing the session manager used by this |
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| 148 | web application.</li> |
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| 149 | <li>An optional <em>Realm</em> used to provide authentication and access |
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| 150 | control information for this web application.</li> |
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| 151 | <li>Zero or more <em>Request Filters</em> used to limit access to this |
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| 152 | web application based on remote host name or IP address.</li> |
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| 153 | </ul> |
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| 154 | |
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| 155 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Default Context"><strong>Default Context</strong></a></font></td></tr><tr><td><blockquote> |
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| 156 | |
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| 157 | <p>A <em>Default Context</em> represents a subset of the configurable |
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| 158 | properties of a <em>Context</em>, and is used to set defaults for those |
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| 159 | properties when web applications are automatically deployed. A <em>Default |
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| 160 | Context</em> object can be associated with an <em>Engine</em> or a |
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| 161 | <em>Host</em>. The following configurable properties are supported:</p> |
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| 162 | <ul> |
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| 163 | <li><code>cookies</code> - Should be use cookies for session identifier |
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| 164 | communication? [true]</li> |
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| 165 | <li><code>crossContext</code> - Should calls to |
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| 166 | <code>ServletContext.getServletContext()</code> return the actual |
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| 167 | context responsible for the specified path? [false]</li> |
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| 168 | <li><code>reloadable</code> - Should Tomcat monitor classes in the |
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| 169 | <code>/WEB-INF/classes</code> directory for changes, and reload the |
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| 170 | application if they occur? [false]</li> |
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| 171 | <li><code>useNaming</code> - Should Tomcat provide a JNDI naming context, |
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| 172 | containing preconfigured entries and resources, corresponding to the |
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| 173 | requirements of the Java2 Enterprise Edition specification? [true]</li> |
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| 174 | </ul> |
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| 175 | |
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| 176 | <p>Each <em>Default Context</em> is owned by a parent <em>Engine</em> or |
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| 177 | <em>Host</em>, and is associated with:</p> |
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| 178 | <ul> |
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| 179 | <li>Zero or more <em>Environment Entries</em> representing environment |
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| 180 | entries for the JNDI naming context associated with a web |
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| 181 | application.</li> |
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| 182 | <li>Zero or more <em>JDBC Resources</em> representing database connection |
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| 183 | pools associated with a web application.</li> |
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| 184 | <li>An optional <em>Loader</em> representing default configuration |
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| 185 | properties for the Loader component of deployed web applications.</li> |
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| 186 | <li>An optional <em>Manager</em> representing default configuration |
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| 187 | properties for the Manager component fo deployed web applications.</li> |
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| 188 | </ul> |
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| 189 | |
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| 190 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Default Deployment Descriptor"><strong>Default Deployment Descriptor</strong></a></font></td></tr><tr><td><blockquote> |
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| 191 | |
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| 192 | <p>Default web application characteristics are configured in a special |
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| 193 | deployment descriptor named <code>$CATALINA_BASE/conf/web.xml</code>. This |
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| 194 | section describes the configurable components that may be stored there.</p> |
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| 195 | |
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| 196 | <p><strong>FIXME</strong> - Complete the description of default servlets, |
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| 197 | default mappings, default MIME types, and so on.</p> |
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| 198 | |
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| 199 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Engine"><strong>Engine</strong></a></font></td></tr><tr><td><blockquote> |
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| 200 | |
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| 201 | <p>An <em>Engine</em> is the representation of the entire Catalina |
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| 202 | servlet container, and processes all requests for all of the associated |
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| 203 | virtual hosts and web applications.</p> |
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| 204 | |
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| 205 | <p>The standard component implementing an <em>Engine</em> is |
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| 206 | <code>org.apache.catalina.core.StandardEngine</code>. It supports the |
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| 207 | following configurable properties:</p> |
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| 208 | <ul> |
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| 209 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 210 | <li><code>defaultHost</code> - Name of the <em>Host</em> to which requests |
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| 211 | will be directed if the requested host is unknown. [localhost]</li> |
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| 212 | <li><code>name</code> - Logical name of this engine. [Tomcat Stand-Alone] |
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| 213 | </li> |
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| 214 | </ul> |
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| 215 | |
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| 216 | <p>Each <em>Engine</em> is owned by a parent <em>Service</em>, and is |
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| 217 | associated with:</p> |
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| 218 | <ul> |
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| 219 | <li>An optional <em>Access Logger</em> that logs all requests processed |
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| 220 | by the entire container.</li> |
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| 221 | <li>A <em>Default Context</em>, representing default properties of a |
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| 222 | <em>Context</em> for automatically deployed applications for all |
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| 223 | associated <em>Hosts</em> (unless overridden by a subordinate |
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| 224 | component).</li> |
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| 225 | <li>One or more <em>Hosts</em> representing individual virtual hosts |
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| 226 | supported by this container.</li> |
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| 227 | <li>A <em>Realm</em> used to provide authentication and access control |
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| 228 | information for all virtual hosts and web applications (unless |
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| 229 | overridden by a subordinate component).</li> |
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| 230 | <li>Zero or more <em>Request Filters</em> used to limit access to the |
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| 231 | entire container based on remote host name or IP address.</li> |
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| 232 | </ul> |
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| 233 | |
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| 234 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Environment Entry"><strong>Environment Entry</strong></a></font></td></tr><tr><td><blockquote> |
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| 235 | |
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| 236 | <p>An <em>Environment Entry</em> is the representation of a |
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| 237 | <code><env-entry></code> element from a web application deployment |
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| 238 | descriptor. It will cause the creation of a corresponding entry in the |
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| 239 | JNDI naming context provided to the corresponding <em>Context</em>. The |
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| 240 | following configurable properties are supported:</p> |
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| 241 | <ul> |
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| 242 | <li><code>description</code> - Description of this environment entry.</li> |
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| 243 | <li><code>name</code> - Environment entry name (relative to the |
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| 244 | <code>java:comp/env</code> context)</li> |
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| 245 | <li><code>type</code> - Environment entry type (must be one of the fully |
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| 246 | qualified Java classes listed in the servlet spec).</li> |
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| 247 | <li><code>value</code> - Environment entry value (must be convertible from |
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| 248 | String to the specified <code>type</code>.</li> |
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| 249 | </ul> |
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| 250 | |
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| 251 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Host"><strong>Host</strong></a></font></td></tr><tr><td><blockquote> |
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| 252 | |
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| 253 | <p>A <em>Host</em> is the representation of an individual virtual host, |
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| 254 | which has a unique set of associated web applications.</p> |
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| 255 | |
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| 256 | <p>The standard component implementing a <em>Host</em> is |
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| 257 | <code>org.apache.catalina.core.StandardHost</code>. It supports the |
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| 258 | following configurable properties:</p> |
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| 259 | <ul> |
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| 260 | <li><code>aliases</code> - Zero or more DNS names that are also associated |
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| 261 | with this host (for example, a particular host might be named |
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| 262 | <code>www.mycompany.com</code> with an alias <code>company.com</code>). |
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| 263 | </li> |
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| 264 | <li><code>appBase</code> - Absolute or relative (to $CATALINA_BASE) path |
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| 265 | to a directory from which web applications will be automatically |
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| 266 | deployed.</li> |
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| 267 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 268 | <li><code>name</code> - DNS Name of the virtual host represented by this |
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| 269 | object.</li> |
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| 270 | <li><code>unpackWARs</code> - Should web application archive files |
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| 271 | deployed by this virtual host be unpacked first? [true]</li> |
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| 272 | </ul> |
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| 273 | |
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| 274 | <p>Each <em>Host</em> is owned by a parent <em>Engine</em>, and is |
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| 275 | associated with:</p> |
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| 276 | <ul> |
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| 277 | <li>An optional <em>Access Logger</em> that logs all requests processed |
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| 278 | by this virtual host.</li> |
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| 279 | <li>One or more <em>Contexts</em> representing the web applications |
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| 280 | operating on this <em>Host</em>.</li> |
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| 281 | <li>A <em>Default Context</em> representing default <em>Context</em> |
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| 282 | properties for web applications that are automatically deployed |
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| 283 | by this <em>Host</em>.</li> |
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| 284 | <li>A optional <em>Realm</em> used to provide authentication and access |
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| 285 | control information for all web applications associated with this |
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| 286 | virtual host (unless overridden by a subordinate component).</li> |
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| 287 | </ul> |
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| 288 | |
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| 289 | <p><strong>FIXME</strong> - Should we support configuration of the |
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| 290 | User Web Applications functionality?</p> |
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| 291 | |
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| 292 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="JDBC Resource"><strong>JDBC Resource</strong></a></font></td></tr><tr><td><blockquote> |
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| 293 | |
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| 294 | <p>A <em>JDBC Resources</em> represents a database connection pool (i.e. |
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| 295 | an implementation of <code>javax.sql.DataSource</code> that will be |
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| 296 | configured and made available in the JNDI naming context associated with |
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| 297 | a web application.</p> |
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| 298 | |
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| 299 | <p><strong>FIXME</strong> - properties of this administered object</p> |
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| 300 | |
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| 301 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Loader"><strong>Loader</strong></a></font></td></tr><tr><td><blockquote> |
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| 302 | |
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| 303 | <p>A <em>Loader</em> represents a web application class loader that will |
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| 304 | be utilized to provide class loading services for a particular |
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| 305 | <em>Context</em>.</p> |
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| 306 | |
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| 307 | <p>The standard component implementing a <em>Loader</em> is |
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| 308 | <code>org.apache.catalina.loader.StandardLoader</code>. It supports |
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| 309 | the following configurable properties:</p> |
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| 310 | <ul> |
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| 311 | <li><code>checkInterval</code> - Number of seconds between checks for |
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| 312 | modified classes, if automatic reloading is enabled. [15]</li> |
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| 313 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 314 | <li><code>reloadable</code> - Should this class loader check for modified |
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| 315 | classes and initiate automatic reloads? [Set automatically from the |
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| 316 | <code>reloadable</code> property of the corresponding <em>Context</em>] |
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| 317 | </li> |
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| 318 | </ul> |
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| 319 | |
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| 320 | <p>Each <em>Loader</em> is owned by a parent <em>Context</em>.</p> |
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| 321 | |
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| 322 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Manager"><strong>Manager</strong></a></font></td></tr><tr><td><blockquote> |
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| 323 | |
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| 324 | <p>A <em>Manager</em> represents a session manager that will be associated |
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| 325 | with a particular web application. <strong>FIXME</strong> - Add support |
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| 326 | for advanced session managers and their associated Stores.</p> |
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| 327 | |
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| 328 | <p>The standard component implementing a <em>Manager</em> is |
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| 329 | <code>org.apache.catalina.session.StandardManager</code>. It supports |
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| 330 | the following configurable properties:</p> |
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| 331 | <ul> |
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| 332 | <li><code>checkInterval</code> - Number of seconds between checks for |
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| 333 | expired sessions. [60]</li> |
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| 334 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 335 | <li><code>entropy</code> - String initialization parameter used to increase |
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| 336 | the entropy (initial randomness) of the random number generator used to |
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| 337 | create session identifiers. [Inferred from engine, host, and context] |
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| 338 | </li> |
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| 339 | <li><code>maxActiveSessions</code> - The maximum number of active sessions |
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| 340 | that are allowed, or -1 for no limit. [-1]</li> |
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| 341 | </ul> |
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| 342 | |
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| 343 | <p>Each <em>Manager</em> is owned by a parent <em>Context</em>.</p> |
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| 344 | |
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| 345 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Realm"><strong>Realm</strong></a></font></td></tr><tr><td><blockquote> |
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| 346 | |
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| 347 | <p>A <em>Realm</em> represents a "database" of information about authorized |
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| 348 | users, their passwords, and the security roles assigned to them. This will |
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| 349 | be used by the container in the implementation of container-managed security |
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| 350 | in accordance with the Servlet Specification. Several alternative |
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| 351 | implementations are supported.</p> |
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| 352 | |
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| 353 | <p><code>org.apache.catalina.realm.MemoryRealm</code> initializes its user |
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| 354 | information from a simple XML file at startup time. If changes are made |
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| 355 | to the information in this file, the corresponding web applications using |
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| 356 | it must be restarted for the changes to take effect. It supports the |
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| 357 | following configurable properties:</p> |
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| 358 | <ul> |
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| 359 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 360 | <li><code>pathname</code> - Absolute or relative (to $CATALINA_BASE) path to |
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| 361 | the XML file containing our user information. [conf/tomcat-users.xml] |
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| 362 | </li> |
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| 363 | </ul> |
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| 364 | |
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| 365 | <p><code>org.apache.catalina.realm.JDBCRealm</code> uses a relational |
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| 366 | database (accessed via JDBC APIs) to contain the user information. Changes |
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| 367 | in the contents of this database take effect immediately; however, the roles |
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| 368 | assigned to a particular user are calculated only when the user initially |
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| 369 | logs on (and not per request). The following configurable properties |
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| 370 | are supported:</p> |
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| 371 | <ul> |
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| 372 | <li><code>connectionName</code> - Database username to use when establishing |
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| 373 | a JDBC connection.</li> |
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| 374 | <li><code>connectionPassword</code> - Database password to use when |
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| 375 | establishing a JDBC connection.</li> |
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| 376 | <li><code>connectionURL</code> - Connection URL to use when establishing |
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| 377 | a JDBC connection.</li> |
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| 378 | <li><code>debug</code> - Debugging detail level. [0]</li> |
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| 379 | <li><code>digest</code> - Name of the <code>MessageDigest</code> algorithm |
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| 380 | used to encode passwords in the database, or a zero-length string for |
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| 381 | no encoding. [Zero-length String]</li> |
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| 382 | <li><code>driverName</code> - Fully qualified Java class name of the JDBC |
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| 383 | driver to be utilized.</li> |
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| 384 | <li><code>roleNameCol</code> - Name of the column, in the User Roles table, |
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| 385 | which contains the role name.</li> |
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| 386 | <li><code>userCredCol</code> - Name of the column, in the Users table, |
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| 387 | which contains the password (encrypted or unencrypted).</li> |
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| 388 | <li><code>userNameCol</code> - Name of the column, in both the Users and |
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| 389 | User Roles tables, that contains the username.</li> |
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| 390 | <li><code>userRoleTable</code> - Name of the User Roles table, which contains |
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| 391 | one row per security role assigned to a particular user. This table must |
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| 392 | contain the columns specified by the <code>userNameCol</code> and |
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| 393 | <code>roleNameCol</code> properties.</li> |
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| 394 | <li><code>userTable</code> - Name of the Users table, which contains one row |
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| 395 | per authorized user. This table must contain the columns specified by |
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| 396 | the <code>userNameCol</code> and <code>userCredCol</code> properties. |
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| 397 | </li> |
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| 398 | </ul> |
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| 399 | |
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| 400 | <p><strong>FIXME</strong> - Should we provide mechanisms to edit the contents |
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| 401 | of a "tomcat-users.xml" file through the admin applications?</p> |
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| 402 | |
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| 403 | <p>Each <em>Realm</em> is owned by a parent <em>Engine</em>, <em>Host</em>, |
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| 404 | or <em>Context</em>.</p> |
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| 405 | |
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| 406 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Request Filter"><strong>Request Filter</strong></a></font></td></tr><tr><td><blockquote> |
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| 407 | |
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| 408 | <p><strong>FIXME</strong> - complete this entry</p> |
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| 409 | |
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| 410 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Server"><strong>Server</strong></a></font></td></tr><tr><td><blockquote> |
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| 411 | |
|---|
| 412 | <p><strong>FIXME</strong> - complete this entry</p> |
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| 413 | |
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| 414 | </blockquote></td></tr></table><table cellpadding="2" cellspacing="0" border="0"><tr><td bgcolor="#525D76"><font face="arial,helvetica.sanserif" color="#ffffff"><a name="Service"><strong>Service</strong></a></font></td></tr><tr><td><blockquote> |
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| 415 | |
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| 416 | <p><strong>FIXME</strong> - complete this entry</p> |
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| 417 | |
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| 418 | </blockquote></td></tr></table></td></tr><!--FOOTER SEPARATOR--><tr><td colspan="2"><hr size="1" noshade></td></tr><!--PAGE FOOTER--><tr><td colspan="2"><div align="center"><font size="-1" color="#525D76"><em> |
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| 419 | Copyright © 1999-2008, Apache Software Foundation |
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| 420 | </em></font></div></td></tr></table></body></html> |
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