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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.
*/
package org.apache.jetspeed.profiler.impl;
import java.io.Serializable;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import javax.security.auth.Subject;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionBindingListener;
import javax.servlet.http.HttpSessionEvent;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.jetspeed.Jetspeed;
import org.apache.jetspeed.administration.PortalConfiguration;
import org.apache.jetspeed.components.dao.InitablePersistenceBrokerDaoSupport;
import org.apache.jetspeed.profiler.ProfileLocator;
import org.apache.jetspeed.profiler.Profiler;
import org.apache.jetspeed.profiler.ProfilerException;
import org.apache.jetspeed.profiler.rules.PrincipalRule;
import org.apache.jetspeed.profiler.rules.ProfileResolvers;
import org.apache.jetspeed.profiler.rules.ProfilingRule;
import org.apache.jetspeed.profiler.rules.RuleCriterion;
import org.apache.jetspeed.profiler.rules.impl.AbstractProfilingRule;
import org.apache.jetspeed.profiler.rules.impl.PrincipalRuleImpl;
import org.apache.jetspeed.request.RequestContext;
import org.apache.jetspeed.security.SecurityHelper;
import org.apache.jetspeed.security.UserPrincipal;
import org.apache.jetspeed.security.impl.UserPrincipalImpl;
import org.apache.ojb.broker.query.Criteria;
import org.apache.ojb.broker.query.QueryFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
/**
* JetspeedTransactionalProfiler
*
* @author David Sean Taylor
* @version $Id: JetspeedProfilerImpl.java 800200 2009-08-03 05:28:33Z rwatler $
*/
public class JetspeedProfilerImpl extends InitablePersistenceBrokerDaoSupport
implements Profiler, BeanFactoryAware
{
/** Profiler context session attribute name */
public final static String PROFILER_CONTEXT_ATTRIBUTE_NAME = "org.apache.jetspeed.profiler.ProfilerContext";
/** Default guest principal name */
public final static String DEFAULT_GUEST_PRINCIPAL_NAME = "guest";
/** Default rule principal name */
public final static String DEFAULT_RULE_PRINCIPAL_NAME = "*";
/** Default and guest rule cache reaping interval */
public final static long DEFAULT_AND_GUEST_RULE_REAPING_INTERVAL = 30000;
/** The default rule. */
public final static String DEFAULT_RULE = "j1";
/** Commons logging */
protected final static Log log = LogFactory.getLog(JetspeedProfilerImpl.class);
/**
* This is the principal that is used if there are no principal to rule associations for the current principal
*/
public final static Principal DEFAULT_RULE_PRINCIPAL = new UserPrincipalImpl(DEFAULT_RULE_PRINCIPAL_NAME);
/** The default locator class implementation */
private String locatorBean = "ProfileLocator";
/** The default principalRule association class implementation */
private Class prRuleClass;
private String principalRuleBean = "PrincipalRule";
/** The base (abstract) profilingRule class implementation */
private String profilingRuleStandardBean = "StandardProfilingRule";
/** The base (abstract) profilingRule class implementation */
private String profilingRuleFallbackBean = "RoleFallbackProfilingRule";
/** The base (abstract) profilingRule class implementation */
private Class profilingRuleClass = AbstractProfilingRule.class;
/** The configured default rule for this portal */
private String defaultRule = DEFAULT_RULE;
/** list of transient and persistent rules cached by principal and locator name */
private Map principalRules = Collections.synchronizedMap(new HashMap());
/** list of persistent rules cached by principal */
private Map rulesPerPrincipal = Collections.synchronizedMap(new HashMap());
/** list of all transient and persistent rules cached by principal */
private Map allRulesPerPrincipal = Collections.synchronizedMap(new HashMap());
private ProfileResolvers resolvers;
/** the default criterion bean name */
private String ruleCriterionBean = "RuleCriterion";
/**
* added support for bean factory to create profile rules
*/
private BeanFactory beanFactory;
/** last default and guest reap time */
private volatile long lastDefaultGuestReapTime = System.currentTimeMillis();
/** configured guest principal name */
private String guestPrincipalName;
public JetspeedProfilerImpl(String repositoryPath,
ProfileResolvers resolvers)
{
super(repositoryPath);
this.resolvers = resolvers;
}
/**
* Create a JetspeedProfiler with properties. Expected properties are:
* defaultRule = the default profiling rule anonymousUser = the name of the
* anonymous user storeName = The name of the persistence store component to
* connect to services.profiler.locator.impl = the pluggable Profile Locator
* impl services.profiler.principalRule.impl = the pluggable Principal Rule
* impl services.profiler.profilingRule.impl = the pluggable Profiling Rule
* impl
*
* @param properties
* Properties for this component described above
* @throws ClassNotFoundException
* if any the implementation classes defined within the
* properties argument could not be found.
*/
public JetspeedProfilerImpl(String repositoryPath, String defaultRule,
ProfileResolvers resolvers) throws ClassNotFoundException
{
this(repositoryPath, resolvers);
this.defaultRule = defaultRule;
}
/**
* @deprecated As of release 2.1, property-based class references replaced
* by container managed bean factory
*/
public JetspeedProfilerImpl(String repositoryPath, String defaultRule,
Properties properties, ProfileResolvers resolvers)
throws ClassNotFoundException
{
this(repositoryPath, defaultRule, resolvers);
initModelClasses(properties); // TODO: move this to
// start()
}
/**
* support passing of rule creation classes
*/
public JetspeedProfilerImpl(String repositoryPath, String defaultRule,
ProfileResolvers resolvers, Map ruleConstructors,
String ruleCriterionBean) throws ClassNotFoundException
{
this(repositoryPath, defaultRule, resolvers);
this.ruleCriterionBean = ruleCriterionBean;
initRuleClasses(ruleConstructors);
}
/**
* @param defaultRule
* The default rule to set.
*/
public void setDefaultRule(String defaultRule)
{
this.defaultRule = defaultRule;
}
/**
* @deprecated As of release 2.1, property-based class references replaced
* by container managed bean factory
*/
private void initModelClasses(Properties properties)
throws ClassNotFoundException
{
/**
* String modelName = "";
*
* if ((modelName = properties.getProperty("locator.impl")) != null) { //
* locatorClassName = modelName; } if ((modelName =
* properties.getProperty("principalRule.impl")) != null) {
* principalRuleClass = Class.forName(modelName); } if ((modelName =
* properties.getProperty("profilingRule.impl")) != null) {
* profilingRuleClass = Class.forName(modelName); }
*/
}
public ProfileLocator getProfile(RequestContext context, String locatorName)
throws ProfilerException
{
// get the principal representing the currently logged on user
Subject subject = context.getSubject();
if (subject == null)
{
String msg = "Invalid (null) Subject in request pipeline";
log.error(msg);
throw new ProfilerException(msg);
}
// get the UserPrincipal, finding the first UserPrincipal, or
// find the first principal if no UserPrincipal isn't available
Principal principal = SecurityHelper.getBestPrincipal(subject,
UserPrincipal.class);
if (principal == null)
{
String msg = "Could not find a principle for subject in request pipeline";
log.error(msg);
throw new ProfilerException(msg);
}
// setup/maintain profiler context for session end notification
setupProfilerContext(context);
// find a profiling rule for this principal
ProfilingRule rule = getRuleForPrincipal(principal, locatorName);
if (null == rule)
{
log.warn("Could not find profiling rule for principal: "
+ principal);
rule = this.getDefaultRule();
}
if (null == rule)
{
String msg = "Couldn't find any profiling rules including default rule for principal "
+ principal;
log.error(msg);
throw new ProfilerException(msg);
}
// create a profile locator for given rule
return rule.apply(context, this);
}
public ProfileLocator getDefaultProfile(RequestContext context,
String locatorName) throws ProfilerException
{
// find a profiling rule for the default principal
ProfilingRule rule = getRuleForPrincipal(DEFAULT_RULE_PRINCIPAL,
locatorName);
if (null == rule)
{
log.warn("Could not find profiling rule for principal: "
+ DEFAULT_RULE_PRINCIPAL);
rule = this.getDefaultRule();
}
if (null == rule)
{
String msg = "Couldn't find any profiling rules including default rule for principal "
+ DEFAULT_RULE_PRINCIPAL;
log.error(msg);
throw new ProfilerException(msg);
}
// create a profile locator for given rule
return rule.apply(context, this);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getProfile(org.apache.jetspeed.request.RequestContext,
* org.apache.jetspeed.profiler.rules.ProfilingRule)
*/
public ProfileLocator getProfile(RequestContext context, ProfilingRule rule)
throws ProfilerException
{
// create a profile locator for given rule
return rule.apply(context, this);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getRuleForPrincipal(java.security.Principal,
* java.lang.String)
*/
public ProfilingRule getRuleForPrincipal(Principal principal,
String locatorName)
{
ProfilingRule rule = null;
// lookup the rule for the given principal in our user/rule table
PrincipalRule pr = lookupPrincipalRule(principal.getName(), locatorName);
// if not found, fallback to the locator named rule or system wide rule
if (pr == null)
{
// find rule on locator name
rule = getRule(locatorName);
if (rule == null)
{
// if not found, fallback to the system wide rule
rule = getDefaultRule();
}
pr = new PrincipalRuleImpl();
pr.setLocatorName(locatorName);
pr.setPrincipalName(principal.getName());
pr.setProfilingRule(rule);
principalRules.put(makePrincipalRuleKey(principal.getName(),
locatorName), pr);
// track cached principal rules
trackCachedPrincipalRulesPut(principal.getName(), pr);
} else
{
// Get the associated rule
rule = pr.getProfilingRule();
}
return rule;
}
/**
* Internal method to ensure we have a valid principalRule class for queries
*
* @return the class object for the principalRule
*/
private Class getPrincipalRuleClass()
{
if (this.prRuleClass == null)
{
try
{
PrincipalRule tempRule = createPrincipalRule();
this.prRuleClass = tempRule.getClass();
} catch (Exception e)
{
e.printStackTrace();
}
}
return this.prRuleClass;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#setRuleForPrincipal(java.security.Principal,
* org.apache.jetspeed.profiler.rules.ProfilingRule, java.lang.String)
*/
public void setRuleForPrincipal(Principal principal, ProfilingRule rule,
String locatorName)
{
Criteria c = new Criteria();
c.addEqualTo("principalName", principal.getName());
c.addEqualTo("locatorName", locatorName);
PrincipalRule pr = (PrincipalRule) getPersistenceBrokerTemplate()
.getObjectByQuery(
QueryFactory.newQuery(getPrincipalRuleClass(), c));
if (pr == null)
{
pr = new PrincipalRuleImpl(); // TODO: factory
pr.setPrincipalName(principal.getName());
pr.setLocatorName(locatorName);
pr.setProfilingRule(rule);
}
rule.setResolvers(resolvers);
pr.setProfilingRule(rule);
getPersistenceBrokerTemplate().store(pr);
principalRules.put(makePrincipalRuleKey(principal.getName(),
locatorName), pr);
// track cached principal rules
trackCachedPrincipalRulesPut(principal.getName(), pr);
// reset persistent rules per principal
rulesPerPrincipal.remove(principal.getName());
}
private String makePrincipalRuleKey(String principal, String locator)
{
return principal + ":" + locator;
}
/**
* Helper function to lookup principal rule associations by principal
*
* @param principal
* The string representation of the principal name.
* @return The found PrincipalRule associated with the principal key or null
* if not found.
*/
private PrincipalRule lookupPrincipalRule(String principal,
String locatorName)
{
PrincipalRule pr = (PrincipalRule) principalRules
.get(makePrincipalRuleKey(principal, locatorName));
if (pr != null) { return pr; }
Criteria c = new Criteria();
c.addEqualTo("principalName", principal);
c.addEqualTo("locatorName", locatorName);
pr = (PrincipalRule) getPersistenceBrokerTemplate().getObjectByQuery(
QueryFactory.newQuery(getPrincipalRuleClass(), c));
if (pr != null) pr.getProfilingRule().setResolvers(resolvers);
principalRules.put(makePrincipalRuleKey(principal, locatorName), pr);
// track cached principal rules
trackCachedPrincipalRulesPut(principal, pr);
return pr;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getDefaultRule()
*/
public ProfilingRule getDefaultRule()
{
return getRule(this.defaultRule);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getRules()
*/
public Collection getRules()
{
Collection rules = getPersistenceBrokerTemplate().getCollectionByQuery(
QueryFactory.newQuery(profilingRuleClass, new Criteria()));
Iterator r = rules.iterator();
while (r.hasNext())
{
ProfilingRule rule = (ProfilingRule) r.next();
rule.setResolvers(resolvers);
}
return rules;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getRule(java.lang.String)
*/
public ProfilingRule getRule(String id)
{
Criteria c = new Criteria();
c.addEqualTo("id", id);
ProfilingRule rule = (ProfilingRule) getPersistenceBrokerTemplate()
.getObjectByQuery(QueryFactory.newQuery(profilingRuleClass, c));
if (rule != null)
{
rule.setResolvers(resolvers);
}
return rule;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getLocatorNamesForPrincipal(java.security.Principal)
*/
public String[] getLocatorNamesForPrincipal(Principal principal)
{
Criteria c = new Criteria();
c.addEqualTo("principalName", principal.getName());
Collection result = getPersistenceBrokerTemplate()
.getCollectionByQuery(
QueryFactory.newQuery(getPrincipalRuleClass(), c));
if (result.size() == 0) { return new String[]
{}; }
String[] names = new String[result.size()];
Iterator it = result.iterator();
int ix = 0;
while (it.hasNext())
{
PrincipalRule pr = (PrincipalRule) it.next();
names[ix] = pr.getLocatorName();
pr.getProfilingRule().setResolvers(resolvers);
ix++;
}
return names;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getRulesForPrincipal(java.security.Principal)
*/
public Collection getRulesForPrincipal(Principal principal)
{
Collection rules = (Collection) this.rulesPerPrincipal.get(principal
.getName());
if (rules != null) return rules;
Criteria c = new Criteria();
c.addEqualTo("principalName", principal.getName());
rules = getPersistenceBrokerTemplate().getCollectionByQuery(
QueryFactory.newQuery(getPrincipalRuleClass(), c));
Iterator r = rules.iterator();
while (r.hasNext())
{
PrincipalRule pr = (PrincipalRule) r.next();
ProfilingRule rule = pr.getProfilingRule();
if (rule != null) rule.setResolvers(resolvers);
}
this.rulesPerPrincipal.put(principal.getName(), rules);
return rules;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#getProfileLocators(org.apache.jetspeed.request.RequestContext,
* java.security.Principal)
*/
public Map getProfileLocators(RequestContext context, Principal principal)
throws ProfilerException
{
// setup/maintain profiler context for session end notification
setupProfilerContext(context);
// get profile locators
Map locators = new HashMap();
Collection rules = getRulesForPrincipal(principal);
Iterator it = rules.iterator();
while (it.hasNext())
{
PrincipalRule pr = (PrincipalRule) it.next();
locators.put(pr.getLocatorName(), getProfile(context, pr
.getLocatorName()));
}
return locators;
}
public Map getDefaultProfileLocators(RequestContext context)
throws ProfilerException
{
// get default profile locators
Map locators = new HashMap();
Collection rules = getRulesForPrincipal(DEFAULT_RULE_PRINCIPAL);
Iterator it = rules.iterator();
while (it.hasNext())
{
PrincipalRule pr = (PrincipalRule) it.next();
locators.put(pr.getLocatorName(), getDefaultProfile(context, pr
.getLocatorName()));
}
return locators;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#storeProfilingRule(org.apache.jetspeed.profiler.rules.ProfilingRule)
*/
public void storeProfilingRule(ProfilingRule rule) throws ProfilerException
{
getPersistenceBrokerTemplate().store(rule);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#deleteProfilingRule(org.apache.jetspeed.profiler.rules.ProfilingRule)
*/
public void deleteProfilingRule(ProfilingRule rule)
throws ProfilerException
{
getPersistenceBrokerTemplate().delete(rule);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#storePrincipalRule(org.apache.jetspeed.profiler.rules.PrincipalRule)
*/
public void storePrincipalRule(PrincipalRule rule) throws ProfilerException
{
getPersistenceBrokerTemplate().store(rule);
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#deletePrincipalRule(org.apache.jetspeed.profiler.rules.PrincipalRule)
*/
public void deletePrincipalRule(PrincipalRule rule)
throws ProfilerException
{
getPersistenceBrokerTemplate().delete(rule);
// reset persistent rules per principal
rulesPerPrincipal.remove(rule.getPrincipalName());
String key = this.makePrincipalRuleKey(rule.getPrincipalName(), rule.getLocatorName());
// remove individual rule
principalRules.remove(key);
// track cached principal rules
trackCachedPrincipalRulesRemoved(rule.getPrincipalName(), rule);
}
/*
* Method called automatically by Spring container upon initialization
*
* @param beanFactory automatically provided by framework @throws
* BeansException
*/
public void setBeanFactory(BeanFactory beanFactory) throws BeansException
{
this.beanFactory = beanFactory;
}
/**
* added logic to get the settings for creating the various rule related
* instances
*
* @param classes
* @throws ClassNotFoundException
*/
private void initRuleClasses(Map beans) throws ClassNotFoundException
{
String beanName = "";
try
{
if ((beanName = (String) beans.get("locator")) != null)
{
this.locatorBean = beanName;
}
} catch (Exception e)
{
String msg = "Exception in setting locatorbeanName : "
+ e.getLocalizedMessage();
log.error(msg);
}
try
{
if ((beanName = (String) beans.get("principal")) != null)
{
this.principalRuleBean = beanName;
}
} catch (Exception e)
{
String msg = "Exception in setting principalRulebeanName : "
+ e.getLocalizedMessage();
log.error(msg);
}
try
{
if ((beanName = (String) beans.get("standard")) != null)
{
this.profilingRuleStandardBean = beanName;
}
} catch (Exception e)
{
String msg = "Exception in setting profilingRuleStandardbeanName : "
+ e.getLocalizedMessage();
log.error(msg);
}
try
{
if ((beanName = (String) beans.get("fallback")) != null)
{
this.profilingRuleFallbackBean = beanName;
}
} catch (Exception e)
{
String msg = "Exception in setting profilingRuleFallback : "
+ e.getLocalizedMessage();
log.error(msg);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#createProfilingRule(boolean)
*/
public ProfilingRule createProfilingRule(boolean standard)
throws ClassNotFoundException
{
try
{
if (standard)
return (ProfilingRule) beanFactory.getBean(
this.profilingRuleStandardBean, ProfilingRule.class);
else
return (ProfilingRule) beanFactory.getBean(
this.profilingRuleFallbackBean, ProfilingRule.class);
} catch (BeansException e)
{
throw new ClassNotFoundException("Spring failed to create the "
+ (standard ? "standard" : "fallback")
+ " profiling rule bean.", e);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#createLocator(RequestContext)
*/
public ProfileLocator createLocator(RequestContext context)
{
try
{
ProfileLocator locator = (ProfileLocator) beanFactory.getBean(
this.locatorBean, ProfileLocator.class);
locator.init(this, context.getPath());
return locator;
} catch (Exception e)
{
log.error("Failed to create locator for " + this.locatorBean
+ " error : " + e.getLocalizedMessage());
}
return null;
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#createPrincipalRule()
*/
public PrincipalRule createPrincipalRule() throws ClassNotFoundException
{
try
{
PrincipalRule principalRule = (PrincipalRule) beanFactory.getBean(
this.principalRuleBean, PrincipalRule.class);
return principalRule;
} catch (Exception e)
{
log.error("Failed to create principalRule for " + principalRuleBean
+ " error : " + e.getLocalizedMessage());
throw new ClassNotFoundException("Spring failed to create the "
+ " principal rule bean.", e);
}
}
/*
* (non-Javadoc)
*
* @see org.apache.jetspeed.profiler.Profiler#createRuleCriterion()
*/
public RuleCriterion createRuleCriterion() throws ClassNotFoundException
{
try
{
RuleCriterion ruleCriterion = (RuleCriterion) beanFactory.getBean(
this.ruleCriterionBean, RuleCriterion.class);
return ruleCriterion;
} catch (Exception e)
{
log.error("Failed to create principalRule for " + ruleCriterionBean
+ " error : " + e.getLocalizedMessage());
throw new ClassNotFoundException("Spring failed to create the "
+ " rule criterion bean.", e);
}
}
/**
* Setup and maintain profiler context to be used to reap rule caches
* for principals on session end.
*
* @param context request context
* @throws ProfilerException when subject or principal not available
*/
private void setupProfilerContext(RequestContext context) throws ProfilerException
{
// validate profiler context
ProfilerContext profilerContext = (ProfilerContext) context.getSessionAttribute(PROFILER_CONTEXT_ATTRIBUTE_NAME);
try
{
// access session principal and test for change
Principal principal = SecurityHelper.getBestPrincipal(context.getSubject(), UserPrincipal.class);
if (principal == null)
{
throw new NullPointerException("Principal not found");
}
if ((profilerContext == null) || (profilerContext.getPrincipal() != principal))
{
// setup/reset profiler context
context.setSessionAttribute(PROFILER_CONTEXT_ATTRIBUTE_NAME, new ProfilerContext(this, principal));
}
}
catch (Exception e)
{
String message = "Unable to access principal in pipeline: "+e;
log.error(message, e);
throw new ProfilerException(message, e);
}
}
/**
* Track all put rules, (persistent and transient), cached for a principal.
*
* @param principalName name of principal rules is cached under
* @param rule rule cached
*/
private void trackCachedPrincipalRulesPut(String principalName, PrincipalRule rule)
{
if (rule != null)
{
// maintain list of all rules cached per principal
synchronized (allRulesPerPrincipal)
{
Collection allRules = (Collection)allRulesPerPrincipal.get(principalName);
if (allRules == null)
{
allRules = new ArrayList(4);
allRulesPerPrincipal.put(principalName, allRules);
}
allRules.add(rule);
}
}
}
/**
* Track all removed rules, (persistent and transient), cached for a principal.
*
* @param principalName name of principal rules is cached under
* @param rule rule cached
*/
private void trackCachedPrincipalRulesRemoved(String principalName, PrincipalRule rule)
{
if (rule != null)
{
// maintain list of all rules cached per principal
synchronized (allRulesPerPrincipal)
{
Collection allRules = (Collection)allRulesPerPrincipal.get(principalName);
if (allRules != null)
{
allRules.remove(rule);
}
}
}
}
/**
* Evict cached profiler rule information for principal.
*
* @param principalName cached profiler rule key
* @param force force eviction of guest and default rules
*/
private void evictCachedPrincipalRules(String principalName, boolean force)
{
if (principalName != null)
{
// do not evict guest and default principal profiler rules by
// default since they would be evicted all too frequently
if (force || (!principalName.equals(getGuestPrincipalName()) && !principalName.equals(DEFAULT_RULE_PRINCIPAL_NAME)))
{
// evict cached profiler rules
Collection rules = (Collection)allRulesPerPrincipal.remove(principalName);
if (rules != null)
{
rulesPerPrincipal.remove(principalName);
Iterator it = rules.iterator();
while (it.hasNext())
{
PrincipalRule rule = (PrincipalRule)it.next();
String key = this.makePrincipalRuleKey(rule.getPrincipalName(), rule.getLocatorName());
principalRules.remove(key);
}
}
}
}
}
/**
* ProfilerContext
*
* Class used to track session lifetime within profiler implementation
* so that cached profiler rule information per principal can be evicted
* from cache on session end. Note that this serializable class must be
* static to prevent owning JetspeedProfilerImpl from being persisted
* in the session.
*/
public static class ProfilerContext implements HttpSessionActivationListener, HttpSessionBindingListener, Serializable
{
private static final long serialVersionUID = 1L;
private transient JetspeedProfilerImpl profiler;
private transient Principal principal;
private transient boolean guestPrincipal;
/**
* Construct new profiler context with specified principal.
*
* @param profiler profiler implementation
* @param principal profiler context principal
*/
private ProfilerContext(JetspeedProfilerImpl profiler, Principal principal)
{
this.profiler = profiler;
this.principal = principal;
this.guestPrincipal = ((principal != null) && principal.getName().equals(profiler.getGuestPrincipalName()));
}
/**
* Notification that the session has just been activated.
*
* @param event session activation event
*/
public void sessionDidActivate(HttpSessionEvent event)
{
}
/**
* Notification that the session is about to be passivated.
*
* @param event session activation event
*/
public void sessionWillPassivate(HttpSessionEvent event)
{
evictPrincipal();
}
/**
* Notifies this context that it is being bound to
* a session and identifies the session.
*
* @param event session binding event
*/
public void valueBound(HttpSessionBindingEvent event)
{
}
/**
* Notifies this context that it is being unbound
* from a session and identifies the session.
*
* @param event session binding event
*/
public void valueUnbound(HttpSessionBindingEvent event)
{
evictPrincipal();
}
/**
* Evict cached principal rules.
*/
private void evictPrincipal()
{
// profiler can be null for reactivated sessions
if (profiler != null)
{
// evict cached principal rules on session end
if ((principal != null) && !guestPrincipal)
{
profiler.evictCachedPrincipalRules(principal.getName(), false);
}
principal = null;
// evict default and guest principal rules periodically
long now = System.currentTimeMillis();
if (now-profiler.lastDefaultGuestReapTime > DEFAULT_AND_GUEST_RULE_REAPING_INTERVAL)
{
profiler.lastDefaultGuestReapTime = now;
profiler.evictCachedPrincipalRules(profiler.getGuestPrincipalName(), true);
profiler.evictCachedPrincipalRules(DEFAULT_RULE_PRINCIPAL_NAME, true);
}
}
}
/**
* Get context principal.
*
* @return context principal
*/
private Principal getPrincipal()
{
return principal;
}
}
/**
* Get configured guest principal name.
*
* @return guest principal name
*/
private String getGuestPrincipalName()
{
// lazily access configured guest principal name
if (guestPrincipalName == null)
{
guestPrincipalName = DEFAULT_GUEST_PRINCIPAL_NAME;
PortalConfiguration config = Jetspeed.getConfiguration();
if (config != null)
{
String configGuestPrincipalName = config.getString("default.user.principal");
if (configGuestPrincipalName != null)
{
guestPrincipalName = configGuestPrincipalName;
}
}
}
return guestPrincipalName;
}
}
