/*
* Copyright 2000-2001,2004 The Apache Software Foundation.
*
* Licensed 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.
*/
package org.apache.jetspeed.modules.actions.portlets;
//Jetspeed
import org.apache.jetspeed.om.profile.Profile;
import org.apache.jetspeed.om.profile.QueryLocator;
import org.apache.jetspeed.portal.portlets.VelocityPortlet;
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
import org.apache.jetspeed.portal.portlets.browser.DatabaseBrowserIterator;
import org.apache.jetspeed.services.Profiler;
import org.apache.jetspeed.util.PortletConfigState;
import org.apache.jetspeed.util.PortletSessionState;
// Turbine stuff
import org.apache.turbine.util.RunData;
// Velocity Stuff
import org.apache.velocity.context.Context;
//Java
import java.util.ArrayList;
import java.util.Iterator;
// regexp stuff
import org.apache.regexp.RE;
import org.apache.regexp.RECompiler;
/**
* This action enables to browse any of the psml info, for displaying
* available entries and information on these entries
*
* @author <a href="mailto:david@apache.org">David Sean Taylor</a>
* @version $Id: PsmlBrowseAction.java,v 1.14 2004/02/23 02:56:58 jford Exp $
*/
public class PsmlBrowseAction extends VelocityPortletAction
{
protected static final String PSML_REFRESH_FLAG = "psmlRefreshFlag";
protected static final String TRUE = "true";
protected static final String FALSE = "false";
protected static final String PROFILE_ITERATOR = "profileIterator";
protected static final String PAGE_SIZE = "page-size";
protected static final String CUSTOMIZE_TEMPLATE = "customize-template";
private static final String PEID = "js_peid";
/** name of the parameter that holds the filter value */
public static final String FILTER_VALUE = "filter_value";
/** name of the parameter that holds the regexp flag */
public static final String FILTER_REGEXP = "filter_regexp";
/** name of the parameter that holds the filter type */
public static final String FILTER_TYPE = "filter_type";
/** value of the filter type parameter for searching by username */
public static final String FILTER_TYPE_USER = "filter_type_user";
/** value of the filter type parameter for searching by role */
public static final String FILTER_TYPE_ROLE = "filter_type_role";
/** value of the filter type parameter for searching by group */
public static final String FILTER_TYPE_GROUP = "filter_type_group";
/**
* Static initialization of the logger for this class
*/
private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(PsmlBrowseAction.class.getName());
/**
* Subclasses should override this method if they wish to
* provide their own customization behavior.
* Default is to use Portal base customizer action
*/
protected void buildConfigureContext(VelocityPortlet portlet,
Context context,
RunData rundata)
{
try
{
super.buildConfigureContext(portlet, context, rundata);
}
catch (Exception ex)
{
logger.error("Exception", ex);
}
context.put(PAGE_SIZE, PortletConfigState.getParameter(portlet, rundata, PAGE_SIZE, "20"));
setTemplate(rundata, PortletConfigState.getParameter(portlet, rundata, CUSTOMIZE_TEMPLATE, null));
}
/**
* Subclasses must override this method to provide default behavior
* for the portlet action
*/
protected void buildNormalContext(VelocityPortlet portlet,
Context context,
RunData rundata)
{
int start = rundata.getParameters().getInt("start", 0);
if (start < 0)
{
start = 0;
}
String pageSize = PortletConfigState.getParameter(portlet, rundata, PAGE_SIZE, "20");
int size = Integer.parseInt(pageSize);
int next = start + size + 1;
int prev = start - size - 1;
//System.out.println("start="+start+" size="+size+" next="+next+" prev="+prev);
//check to see if resultset has changed due to PsmlUpdateAction
//if so reconstruct the iterator and reset the flag
boolean refreshFlag = (rundata.getUser().getTemp(PSML_REFRESH_FLAG, FALSE)).equals(TRUE);
rundata.getUser().setTemp(PSML_REFRESH_FLAG, FALSE);
//Get the iterator
DatabaseBrowserIterator windowIterator =
(DatabaseBrowserIterator) PortletSessionState.getAttribute(portlet, rundata, PROFILE_ITERATOR);
if ((windowIterator == null) || refreshFlag)
{
int index = 0;
QueryLocator ql = new QueryLocator(QueryLocator.QUERY_ALL);
ArrayList entries = new ArrayList();
Iterator i = Profiler.query(ql);
// Is filtering requested?
String filterValue = rundata.getParameters().getString(FILTER_VALUE);
if (filterValue != null && !filterValue.trim().equalsIgnoreCase(""))
{
String filterType = rundata.getParameters().getString(FILTER_TYPE, FILTER_TYPE_USER);
boolean useRE = rundata.getParameters().getBoolean(FILTER_REGEXP);
RE r = null;
RECompiler rc = null;
if (useRE)
{
try
{
rc = new RECompiler();
r = new RE();
r.setProgram(rc.compile(filterValue));
}
catch (org.apache.regexp.RESyntaxException rex)
{
logger.warn("PsmlBrowseAction: error processing regular expression [" + filterValue + "]: " +
rex.toString());
}
}
try
{
while (i.hasNext())
{
Profile profile = (Profile) i.next();
String compareValue = null;
if (filterType.equals(FILTER_TYPE_USER))
{
compareValue = profile.getUserName();
}
else if (filterType.equals(FILTER_TYPE_ROLE))
{
compareValue = profile.getRoleName(); }
else if (filterType.equals(FILTER_TYPE_GROUP))
{
compareValue = profile.getGroupName();
}
if (compareValue != null)
{
if (useRE && r.match(compareValue))
{
entries.add(profile);
}
else if (compareValue.startsWith(filterValue))
{
entries.add(profile);
}
}
}
}
catch (Exception e)
{
logger.error("Exception", e);
}
}
else
{
while (i.hasNext())
{
Profile profile = (Profile) i.next();
//System.out.println("profile["+index+"]="+profile.getPath());
entries.add(profile);
index++;
}
}
ArrayList entryType = new ArrayList();
entryType.add("Profile");
windowIterator = new DatabaseBrowserIterator(entries, entryType, entryType, size);
PortletSessionState.setAttribute(portlet, rundata, PROFILE_ITERATOR, windowIterator);
}
else
{
windowIterator.setTop(start);
}
if (windowIterator != null)
{
context.put("psml", windowIterator);
if (start > 0)
{
context.put("prev", String.valueOf(prev + 1));
}
if (next <= windowIterator.getResultSetSize())
{
context.put("next", String.valueOf(next - 1));
}
}
else
{
logger.error("No Psml entries Found");
}
}
/**
* This method is called when the user configures any of the parameters.
* @param data The turbine rundata context for this request.
* @param context The velocity context for this request.
*/
public void doUpdate(RunData rundata, Context context)
{
String pageSize = null;
VelocityPortlet portlet = (VelocityPortlet) context.get("portlet");
if (portlet != null)
{
String peid = portlet.getID();
if ((peid != null)
&& peid.equals(rundata.getParameters().getString(PEID)))
{
pageSize = rundata.getParameters().getString(PAGE_SIZE);
}
if (pageSize != null)
{
PortletConfigState.setInstanceParameter(portlet, rundata, PAGE_SIZE, pageSize);
PortletSessionState.clearAttribute(portlet, rundata, PROFILE_ITERATOR);
}
}
buildNormalContext(portlet, context, rundata);
}
/**
* This method is to refresh psml from disk or database.
* @param data The turbine rundata context for this request.
* @param context The velocity context for this request.
*/
public void doRefresh(RunData rundata, Context context)
{
VelocityPortlet portlet = (VelocityPortlet) context.get("portlet");
PortletSessionState.clearAttribute(portlet, rundata, PROFILE_ITERATOR);
rundata.getParameters().remove(FILTER_VALUE);
buildNormalContext(portlet, context, rundata);
}
/**
* This method is to enter filtering mode.
* @param data The turbine rundata context for this request.
* @param context The velocity context for this request.
*/
public void doFilter(RunData rundata, Context context)
{
VelocityPortlet portlet = (VelocityPortlet) context.get("portlet");
PortletSessionState.clearAttribute(portlet, rundata, PROFILE_ITERATOR);
buildNormalContext(portlet, context, rundata);
}
}