Example usage for org.apache.wicket Application getMetaData

Introduction

In this page you can find the example usage for org.apache.wicket Application getMetaData.

Prototype

public final synchronized <T> T getMetaData(final MetaDataKey<T> key) 

Source Link

Document

Gets metadata for this application using the given key.

Usage

From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

/**
 * Cleans the metadata (triggers, poll time) associated with a given
 * behavior id/*from  w w w .j  a va 2s  . c o  m*/
 * 
 * @param application
 *            the application in which the metadata are stored
 * @param id
 *            the id of the behavior
 */
private static void cleanMetadata(final Application application, String id) {
    id = getPageId(application, id);
    ConcurrentMap<String, List<DelayedMethodCallList>> triggersById = null;
    ConcurrentMap<String, Time> eventsTimeById = null;
    ConcurrentMap<String, String> pageIdsById = null;
    synchronized (application) {
        triggersById = application.getMetaData(TRIGGERS_KEY);
        eventsTimeById = application.getMetaData(EVENTS_KEY);
        pageIdsById = application.getMetaData(PAGE_ID_KEY);
    }
    if (triggersById != null) {
        final List<DelayedMethodCallList> triggers = triggersById.remove(id);
        if (triggers != null) {
            synchronized (triggers) {
                triggers.clear();
            }
        }
    }
    if (eventsTimeById != null) {
        eventsTimeById.remove(id);
    }
    if (pageIdsById != null) {
        pageIdsById.remove(id);
    }
}

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From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

private static void touch(final Application application, String id) {
    id = getPageId(application, id);//from  ww  w. jav  a  2s.c  om
    ConcurrentMap<String, Time> eventsTimeById;
    synchronized (application) {
        eventsTimeById = application.getMetaData(EVENTS_KEY);
        if (eventsTimeById == null) {
            eventsTimeById = new ConcurrentHashMap<String, Time>();
            application.setMetaData(EVENTS_KEY, eventsTimeById);
        }
    }
    eventsTimeById.put(id, Time.now());
}

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From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

private static Time getLastPollEvent(final Application application, String id) {
    id = getPageId(application, id);//  w w w  .ja va2 s . c  om
    ConcurrentMap<String, Time> eventsTimeById;
    synchronized (application) {
        eventsTimeById = application.getMetaData(EVENTS_KEY);
        if (eventsTimeById == null) {
            return null;
        }
    }
    final Time time = eventsTimeById.get(id);
    return time;
}

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From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

/**
 * Returns the page behavior id corresponding the given behavior id. Only
 * one behavior is actually rendered on a page for the same updateInterval,
 * to optimize the number of requests. Therefore all timer channel behaviors
 * of the same page are redirected to the same id, using this method.
 * //from   w w  w.j a v  a  2  s  .c  o m
 * @param application
 *            the wicket application to which the behavior belong
 * @param id
 *            the id of the behavior for which the page behavior id should
 *            be found
 * @return the page behavior id corresponding the given behavior id.
 */
private static String getPageId(final Application application, final String id) {
    ConcurrentMap<String, String> pageIdsById;
    synchronized (application) {
        pageIdsById = application.getMetaData(PAGE_ID_KEY);
        if (pageIdsById == null) {
            return id;
        }
    }
    final String pageId = pageIdsById.get(id);
    return pageId == null ? id : pageId;
}

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From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

private static void setRedirectId(final Application application, final String id, final String redirectedId) {
    ConcurrentMap<String, String> pageIdsById;
    synchronized (application) {
        pageIdsById = application.getMetaData(PAGE_ID_KEY);
        if (pageIdsById == null) {
            pageIdsById = new ConcurrentHashMap<String, String>();
            application.setMetaData(PAGE_ID_KEY, pageIdsById);
        }/*from   w  ww .  j  a  v  a2s .  c  om*/
    }
    final String oldRedirectedId = pageIdsById.put(id, redirectedId);
    if (!redirectedId.equals(oldRedirectedId)) {
        /*
         * The id was not already redirected to the redirectedId, we need to
         * merge the information before redirection with information after
         * redirection
         */
        final String idToRedirect = oldRedirectedId == null ? id : oldRedirectedId;
        redirect(application, idToRedirect, redirectedId);
    }
}

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From source file:org.wicketstuff.chat.channel.TimerChannelBehavior.java

License:Apache License

private static void redirect(final Application application, final String idToRedirect,
        final String redirectedId) {
    ConcurrentMap<String, List<DelayedMethodCallList>> triggersById = null;
    ConcurrentMap<String, Time> eventsTimeById = null;
    synchronized (application) {
        triggersById = application.getMetaData(TRIGGERS_KEY);
        eventsTimeById = application.getMetaData(EVENTS_KEY);
    }/*from  w  w  w. j  a v  a 2  s  .c o  m*/
    if (triggersById != null) {
        final List<DelayedMethodCallList> triggersToRedirect = triggersById.remove(idToRedirect);
        if (triggersToRedirect != null) {
            // we redirect triggers to the new list, in two steps, to avoid
            // acquiring
            // locks on two triggers simultaneously, which would be a source
            // of risk of
            // dead locks
            List<DelayedMethodCallList> triggersToRedirectCopy;
            synchronized (triggersToRedirect) {
                triggersToRedirectCopy = new ArrayList<DelayedMethodCallList>(triggersToRedirect);
                triggersToRedirect.clear();
            }
            if (!triggersToRedirectCopy.isEmpty()) {
                final List<DelayedMethodCallList> triggers = getTriggers(application, redirectedId);
                synchronized (triggers) {
                    triggers.addAll(triggersToRedirectCopy);
                }
            }
        }
    }
    if (eventsTimeById != null) {
        eventsTimeById.remove(idToRedirect);
        /*
         * we don't need to merge touch information, since merged behaviors
         * always have the same touch rates
         */
    }
}

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From source file:org.wicketstuff.dashboard.web.DashboardSettings.java

License:Apache License

/**
 * Retrieves the instance of settings object.
 *
 * @return settings instance/*  w w w .j a  v a  2 s. c om*/
 */
public static DashboardSettings get() {
    Application application = Application.get();
    DashboardSettings settings = application.getMetaData(KEY);
    if (settings == null) {
        synchronized (application) {
            settings = application.getMetaData(KEY);
            if (settings == null) {
                settings = new DashboardSettings();
                application.setMetaData(KEY, settings);
            }
        }
    }

    return application.getMetaData(KEY);
}

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From source file:org.wicketstuff.mergedresources.ResourceMount.java

License:Apache License

/**
 * get {@link ICssCompressor} used by {@link CompressedMergedCssResource}
 * //from  w w w.j  a v a  2 s.  co  m
 * @param application
 */
public static ICssCompressor getCssCompressor(Application application) {
    return application.getMetaData(CSS_COMPRESSOR_KEY);
}

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From source file:org.xaloon.wicket.component.inject.j2ee.bm.WeldBeanManagerLocator.java

License:Apache License

private BeanManager getBeanManagerFromApplication(Application application) {
    BeanManager beanManager = null;// w w  w.  j a  v a 2s .c  o  m
    BeanManagerHolder beanManagerHolder = application.getMetaData(BEAN_MANAGER_KEY);
    if (beanManagerHolder == null || beanManagerHolder.getBeanManager() == null) {
        beanManager = locateBeanManagerFromJNDI();
        Application.get().setMetaData(BEAN_MANAGER_KEY, new BeanManagerHolder(beanManager));
    } else {
        beanManager = beanManagerHolder.getBeanManager();
    }
    return beanManager;
}

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From source file:ro.fortsoft.wicket.pivot.web.PivotSettings.java

License:Apache License

/**
 * Retrieves the instance of settings object.
 * //from  w w w. ja  v  a  2 s.c o m
 * @return settings instance
 */
public static PivotSettings get() {
    Application application = Application.get();
    PivotSettings settings = application.getMetaData(KEY);
    if (settings == null) {
        synchronized (application) {
            settings = application.getMetaData(KEY);
            if (settings == null) {
                settings = new PivotSettings();
                application.setMetaData(KEY, settings);
            }
        }
    }

    return application.getMetaData(KEY);
}

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