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<%--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
--%>
<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.Iterator" %>
<%@ page import="org.apache.jcs.admin.*" %>
<%@ page import="org.apache.jcs.*" %>
<jsp:useBean id="jcsBean" scope="request" class="org.apache.jcs.admin.JCSAdminBean" />
<html>
<head>
<SCRIPT LANGUAGE="Javascript">
function decision( message, url )
{
if( confirm(message) )
{
location.href = url;
}
}
</SCRIPT>
<title> JCS Admin Servlet </title>
</head>
<body>
<%
String CACHE_NAME_PARAM = "cacheName";
String ACTION_PARAM = "action";
String CLEAR_ALL_REGIONS_ACTION = "clearAllRegions";
String CLEAR_REGION_ACTION = "clearRegion";
String REMOVE_ACTION = "remove";
String DETAIL_ACTION = "detail";
String REGION_SUMMARY_ACTION = "regionSummary";
String ITEM_ACTION = "item";
String KEY_PARAM = "key";
String SILENT_PARAM = "silent";
String DEFAULT_TEMPLATE_NAME = "DEFAULT";
String REGION_DETAIL_TEMPLATE_NAME = "DETAIL";
String ITEM_TEMPLATE_NAME = "ITEM";
String REGION_SUMMARY_TEMPLATE_NAME = "SUMMARY";
String templateName = DEFAULT_TEMPLATE_NAME;
HashMap context = new HashMap();
// Get cacheName for actions from request (might be null)
String cacheName = request.getParameter( CACHE_NAME_PARAM );
if ( cacheName != null )
{
cacheName = cacheName.trim();
}
// If an action was provided, handle it
String action = request.getParameter( ACTION_PARAM );
if ( action != null )
{
if ( action.equals( CLEAR_ALL_REGIONS_ACTION ) )
{
jcsBean.clearAllRegions();
}
else if ( action.equals( CLEAR_REGION_ACTION ) )
{
if ( cacheName == null )
{
// Not Allowed
}
else
{
jcsBean.clearRegion( cacheName );
}
}
else if ( action.equals( REMOVE_ACTION ) )
{
String[] keys = request.getParameterValues( KEY_PARAM );
for ( int i = 0; i < keys.length; i++ )
{
jcsBean.removeItem( cacheName, keys[ i ] );
}
templateName = REGION_DETAIL_TEMPLATE_NAME;
}
else if ( action.equals( DETAIL_ACTION ) )
{
templateName = REGION_DETAIL_TEMPLATE_NAME;
}
else if ( action.equals( ITEM_ACTION ) )
{
templateName = ITEM_TEMPLATE_NAME;
}
else if ( action.equals( REGION_SUMMARY_ACTION ) )
{
templateName = REGION_SUMMARY_TEMPLATE_NAME;
}
}
if ( request.getParameter( SILENT_PARAM ) != null )
{
// If silent parameter was passed, no output should be produced.
//return null;
}
else
{
// Populate the context based on the template
if ( templateName == REGION_DETAIL_TEMPLATE_NAME )
{
//context.put( "cacheName", cacheName );
context.put( "elementInfoRecords", jcsBean.buildElementInfo( cacheName ) );
}
else if ( templateName == DEFAULT_TEMPLATE_NAME )
{
context.put( "cacheInfoRecords", jcsBean.buildCacheInfo() );
}
}
///////////////////////////////////////////////////////////////////////////////////
//handle display
if ( templateName == ITEM_TEMPLATE_NAME )
{
String key = request.getParameter( KEY_PARAM );
if ( key != null )
{
key = key.trim();
}
JCS cache = JCS.getInstance( cacheName );
org.apache.jcs.engine.behavior.ICacheElement element = cache.getCacheElement( key );
%>
<h1> Item for key [<%=key%>] in region [<%=cacheName%>] </h1>
<a href="JCSAdmin.jsp?action=detail&cacheName=<%=cacheName%>">Region Detail</a>
| <a href="JCSAdmin.jsp">All Regions</a>
<pre>
<%=element%>
</pre>
<%
}
else
if ( templateName == REGION_SUMMARY_TEMPLATE_NAME )
{
%>
<h1> Summary for region [<%=cacheName%>] </h1>
<a href="JCSAdmin.jsp">All Regions</a>
<%
JCS cache = JCS.getInstance( cacheName );
String stats = cache.getStats();
%>
<br>
<b> Stats for region [<%=cacheName%>] </b>
<pre>
<%=stats%>
</pre>
<%
}
else
if ( templateName == REGION_DETAIL_TEMPLATE_NAME )
{
%>
<h1> Detail for region [<%=cacheName%>] </h1>
<a href="JCSAdmin.jsp">All Regions</a>
<table border="1" cellpadding="5" >
<tr>
<th> Key </th>
<th> Eternal? </th>
<th> Create time </th>
<th> Max Life (s) </th>
<th> Till Expiration (s) </th>
</tr>
<%
List list = (List)context.get( "elementInfoRecords" );
Iterator it = list.iterator();
while ( it.hasNext() ) {
CacheElementInfo element = (CacheElementInfo)it.next();
%>
<tr>
<td> <%=element.getKey()%> </td>
<td> <%=element.isEternal()%> </td>
<td> <%=element.getCreateTime()%> </td>
<td> <%=element.getMaxLifeSeconds()%> </td>
<td> <%=element.getExpiresInSeconds()%> </td>
<td>
<a href="JCSAdmin.jsp?action=item&cacheName=<%=cacheName%>&key=<%=element.getKey()%>"> View </a>
| <a href="JCSAdmin.jsp?action=remove&cacheName=<%=cacheName%>&key=<%=element.getKey()%>"> Remove </a>
</td>
</tr>
<%
}
JCS cache = JCS.getInstance( cacheName );
String stats = cache.getStats();
%>
</table>
<br>
<b> Stats for region [<%=cacheName%>] </b>
<pre>
<%=stats%>
</pre>
<%
}
else
{
%>
<h1> Cache Regions </h1>
<p>
These are the regions which are currently defined in the cache. 'Items' and
'Bytes' refer to the elements currently in memory (not spooled). You can clear
all items for a region by selecting 'Remove all' next to the desired region
below. You can also <a href="javascript:decision('Clicking OK will clear all the data from all regions!','JCSAdmin.jsp?action=clearAllRegions')">Clear all regions</a>
which empties the entire cache.
</p>
<p>
<form action="JCSAdmin.jsp">
<input type="hidden" name="action" value="item">
Retrieve (key) <input type="text" name="key">
(region) <select name="cacheName">
<%
List listSelect = (List)context.get( "cacheInfoRecords" );
Iterator itSelect = listSelect.iterator();
while ( itSelect.hasNext() )
{
CacheRegionInfo record = (CacheRegionInfo)itSelect.next();
%>
<option value="<%=record.getCache().getCacheName()%>"><%=record.getCache().getCacheName()%></option>
<%
}
%>
</select>
<input type="submit">
</form>
</p>
<table border="1" cellpadding="5" >
<tr>
<th> Cache Name </th>
<th> Items </th>
<th> Bytes </th>
<th> Status </th>
<th> Memory Hits </th>
<th> Aux Hits </th>
<th> Not Found Misses </th>
<th> Expired Misses </th>
</tr>
<%
List list = (List)context.get( "cacheInfoRecords" );
Iterator it = list.iterator();
while (it.hasNext() )
{
CacheRegionInfo record = (CacheRegionInfo)it.next();
%>
<tr>
<td> <%=record.getCache().getCacheName()%> </td>
<td> <%=record.getCache().getSize()%> </td>
<td> <%=record.getByteCount()%> </td>
<td> <%=record.getStatus()%> </td>
<td> <%=record.getCache().getHitCountRam()%> </td>
<td> <%=record.getCache().getHitCountAux()%> </td>
<td> <%=record.getCache().getMissCountNotFound()%> </td>
<td> <%=record.getCache().getMissCountExpired()%> </td>
<td>
<a href="JCSAdmin.jsp?action=regionSummary&cacheName=<%=record.getCache().getCacheName()%>"> Summary </a>
| <a href="JCSAdmin.jsp?action=detail&cacheName=<%=record.getCache().getCacheName()%>"> Detail </a>
| <a href="javascript:decision('Clicking OK will remove all the data from the region [<%=record.getCache().getCacheName()%>]!','JCSAdmin.jsp?action=clearRegion&cacheName=<%=record.getCache().getCacheName()%>')"> Clear </a>
</td>
</tr>
<%
}
%>
</table>
<%
}
%>
</body>
</html>