/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program is distributed
* in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.hq.ui.taglib;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hyperic.hq.appdef.shared.AppdefEntityID;
import org.hyperic.hq.appdef.shared.AppdefGroupValue;
import org.hyperic.hq.auth.shared.SessionException;
import org.hyperic.hq.authz.shared.PermissionException;
import org.hyperic.hq.bizapp.shared.AppdefBoss;
import org.hyperic.hq.context.Bootstrap;
import org.hyperic.hq.ui.exception.ParameterNotFoundException;
import org.hyperic.hq.ui.util.RequestUtils;
/**
* Set a scoped variable containing a boolean flag as to whether or
* not the running server and current page context both support the
* navigation map functionality.
*
*/
public class NavMapSupportedTag extends VarSetterBaseTag {
private Log log = LogFactory.getLog( NavMapSupportedTag.class.getName() );
public final int doStartTag() throws JspException {
HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
AppdefBoss ab = Bootstrap.getBean(AppdefBoss.class);
boolean navMapSupported = true;
// first try to get the resource ids as eids, then as rid / type
AppdefEntityID[] eids = null;
try {
eids = RequestUtils.getEntityIds(request);
} catch (ParameterNotFoundException e) {
// either an auto-group of platforms or an individual resource
try {
eids = new AppdefEntityID[] {
RequestUtils.getEntityId(request) };
} catch (ParameterNotFoundException pnfe) {
// auto-group of platforms
eids = null;
}
}
if (null == eids) {
// auto-group of platforms
navMapSupported = true;
} else {
if (0 == eids.length) {
// ERROR, not supported
log.error("Couldn't find any entity ids. Assuming NavMap not supported.");
navMapSupported = false;
} else if (1 == eids.length) {
if ( eids[0].isGroup() ) {
try {
int sessionId = RequestUtils.getSessionId(request).intValue();
AppdefGroupValue group =
ab.findGroup(sessionId, eids[0].getId());
if ( group.isGroupAdhoc() || group.isDynamicGroup() ) {
// mixed-group, not supported
navMapSupported = false;
} else {
// compatible-group or cluster, supported
navMapSupported = true;
}
} catch (SessionException e) {
// ERROR, not supported
log.error("Session timeout. Assuming NavMap not supported.", e);
navMapSupported = false;
} catch (PermissionException e) {
// ERROR, not supported
log.error("No rights to this group. Assuming NavMap not supported.", e);
navMapSupported = false;
} catch (ServletException e) {
// ERROR, not supported
log.error("Couldn't check group type w/o session id. Assuming NavMap not supported.", e);
navMapSupported = false;
}
} else {
// non-group, supported
navMapSupported = true;
}
} else {
// auto-group
navMapSupported = true;
}
}
setScopedVariable( new Boolean(navMapSupported) );
return SKIP_BODY;
}
}
// EOF