Example usage for org.apache.commons.collections.map LRUMap LRUMap

Introduction

In this page you can find the example usage for org.apache.commons.collections.map LRUMap LRUMap.

Prototype

public LRUMap(Map map) 

Source Link

Document

Constructor copying elements from another map.

Usage

From source file:org.lockss.plugin.AuSearchSet.java

public void addRecent404(String url) {
    if (isEmpty()) {
        return;/*  w  w w.ja  va2 s  .c o  m*/
    }
    LRUMap map = recent404s;
    if (map == null) {
        if (recent404Size <= 0) {
            return;
        }

        map = new LRUMap(recent404Size);
        recent404s = map;
    }
    synchronized (map) {
        map.put(url, "");
    }
}

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From source file:org.lockss.plugin.AuSearchSet.java

private void set404CacheSize(int newSize) {
    if (newSize < 0) {
        // shouldn't happen, but ignore rather than throw
        log.error("AuSearchSet size < 0");
    }// w ww.  j  a  va2s. c  om
    LRUMap map = recent404s;
    if (map == null) {
        recent404Size = newSize;
        return;
    }
    synchronized (map) {
        if (newSize == 0) {
            if (log.isDebug2())
                log.debug2("Removing 404 cache.");
            recent404s = null;
        } else if (map.maxSize() < newSize) {
            LRUMap newMap = new LRUMap(newSize);
            newMap.putAll(map);
            if (log.isDebug2())
                log.debug2("Enlarging 404 cache.");
            recent404s = newMap;
        }
        recent404Size = newSize;
    }
}

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From source file:org.lockss.protocol.LcapDatagramRouter.java

public void setConfig(Configuration config, Configuration oldConfig, Configuration.Differences changedKeys) {
    enabled = config.getBoolean(LcapDatagramComm.PARAM_ENABLED, LcapDatagramComm.DEFAULT_ENABLED);
    if (changedKeys.contains(PARAM_FWD_PKT_RATE)) {
        fwdPktRateLimiter = RateLimiter.getConfiguredRateLimiter(config, fwdPktRateLimiter, PARAM_FWD_PKT_RATE,
                DEFAULT_FWD_PKT_RATE);//from  ww  w. j a  v a 2  s  . c  om
    }
    if (changedKeys.contains(PARAM_ORIG_PKT_RATE)) {
        origPktRateLimiter = RateLimiter.getConfiguredRateLimiter(config, origPktRateLimiter,
                PARAM_ORIG_PKT_RATE, DEFAULT_ORIG_PKT_RATE);
    }
    if (changedKeys.contains(PARAM_FWD_MSG_RATE)) {
        fwdMsgRateLimiter = RateLimiter.getConfiguredRateLimiter(config, fwdMsgRateLimiter, PARAM_FWD_MSG_RATE,
                DEFAULT_FWD_MSG_RATE);
    }
    if (changedKeys.contains(PARAM_ORIG_MSG_RATE)) {
        origMsgRateLimiter = RateLimiter.getConfiguredRateLimiter(config, origMsgRateLimiter,
                PARAM_ORIG_MSG_RATE, DEFAULT_ORIG_MSG_RATE);
    }
    partnerRefreshInterval = config.getTimeInterval(PARAM_PARTNER_REFRESH_INTERVAL,
            DEFAULT_PARTNER_REFRESH_INTERVAL);

    if (changedKeys.contains(PARAM_BEACON_INTERVAL)) {
        beaconInterval = config.getTimeInterval(PARAM_BEACON_INTERVAL, DEFAULT_BEACON_INTERVAL);
        if (enabled) {
            startBeacon();
        }
    }
    probAddPartner = config.getPercentage(PARAM_PROB_PARTNER_ADD, DEFAULT_PROB_PARTNER_ADD);
    initialHopCount = config.getInt(PARAM_INITIAL_HOPCOUNT, DEFAULT_INITIAL_HOPCOUNT);

    int dupSize = config.getInt(PARAM_DUP_MSG_HASH_SIZE, DEFAULT_DUP_MSG_HASH_SIZE);
    if (dupSize != recentVerifiers.maxSize()) {
        // Ok to discard current entries - might let some dup messages through.
        recentVerifiers = new LRUMap(dupSize);
    }

    if (partnerList != null) {
        partnerList.setConfig(config, oldConfig, changedKeys);
    }
}

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From source file:org.lockss.util.UniqueRefLruCache.java

/**
 * Standard constructor.  Size must be positive.
 * @param maxSize maximum size for the LRUMap
 *//*from  w w w  .  j a v a 2 s  .  co  m*/
public UniqueRefLruCache(int maxSize) {
    if (maxSize <= 0) {
        throw new IllegalArgumentException("Negative cache size");
    }
    lruMap = new LRUMap(maxSize);
    refMap = new ReferenceMap(ReferenceMap.HARD, ReferenceMap.WEAK);
}

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From source file:org.lockss.util.UniqueRefLruCache.java

/**
 * Sets the NodeState cache size./*from   w  ww  .  j av a2  s.c  o m*/
 * @param newSize the new size
 */
public synchronized void setMaxSize(int newSize) {
    if (newSize <= 0) {
        throw new IllegalArgumentException("Negative cache size");
    }
    if (lruMap.maxSize() != newSize) {
        LRUMap newMap = new LRUMap(newSize);
        newMap.putAll(lruMap);
        lruMap = newMap;
    }
}

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From source file:org.mrgeo.data.MrsPyramidRecordReader.java

@SuppressWarnings("unchecked")
private T getTileFromCache(final String k, final MrsTileReader<T> reader, TileIdWritable id) {
    // see if the lower level tile is in our cache...
    if (!tilecache.containsKey(k)) {
        tilecache.put(k, new LRUMap(4));
    }/*w w  w  .j av  a  2 s.  c o m*/
    Map<TileIdWritable, T> cache = tilecache.get(k);
    if (cache.containsKey(id)) {
        return cache.get(id);
    }
    T r = reader.get(id);
    cache.put(id, r);

    return r;
}

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From source file:org.mule.transport.jms.redelivery.CountingRedeliveryHandler.java

@SuppressWarnings("unchecked")
public CountingRedeliveryHandler() {
    super();
    messages = Collections.synchronizedMap(new LRUMap(256));
}

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From source file:org.nuclos.client.genericobject.GenericObjectLayoutCache.java

private GenericObjectLayoutCache() {
    mpLayoutIds = new LRUMap(100);
    INSTANCE = this;
}

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From source file:org.objectstyle.cayenne.access.DataRowStore.java

protected void initWithProperties(Map properties) {
    ExtendedProperties propertiesWrapper = new ExtendedProperties();

    if (properties != null) {
        propertiesWrapper.putAll(properties);
    }//from ww w  . ja  v a  2  s .com

    long snapshotsExpiration = propertiesWrapper.getLong(SNAPSHOT_EXPIRATION_PROPERTY,
            SNAPSHOT_EXPIRATION_DEFAULT);

    int snapshotsCacheSize = propertiesWrapper.getInt(SNAPSHOT_CACHE_SIZE_PROPERTY,
            SNAPSHOT_CACHE_SIZE_DEFAULT);

    boolean notifyRemote = propertiesWrapper.getBoolean(REMOTE_NOTIFICATION_PROPERTY,
            REMOTE_NOTIFICATION_DEFAULT);

    String eventBridgeFactory = propertiesWrapper.getString(EVENT_BRIDGE_FACTORY_PROPERTY,
            EVENT_BRIDGE_FACTORY_DEFAULT);

    if (logObj.isDebugEnabled()) {
        logObj.debug("DataRowStore property " + SNAPSHOT_EXPIRATION_PROPERTY + " = " + snapshotsExpiration);
        logObj.debug("DataRowStore property " + SNAPSHOT_CACHE_SIZE_PROPERTY + " = " + snapshotsCacheSize);
        logObj.debug("DataRowStore property " + REMOTE_NOTIFICATION_PROPERTY + " = " + notifyRemote);
        logObj.debug("DataRowStore property " + EVENT_BRIDGE_FACTORY_PROPERTY + " = " + eventBridgeFactory);
    }

    // init ivars from properties
    this.notifyingRemoteListeners = notifyRemote;

    // TODO: ENTRY EXPIRATION is not supported by commons LRU Map
    this.snapshots = new LRUMap(snapshotsCacheSize);

    // TODO: cache size should really be a sum of all result lists sizes...
    // so we must track it outside the LRUMap...
    this.snapshotLists = new LRUMap(snapshotsCacheSize);

    // init event bridge only if we are notifying remote listeners
    if (notifyingRemoteListeners) {
        try {
            EventBridgeFactory factory = (EventBridgeFactory) Class.forName(eventBridgeFactory).newInstance();
            this.remoteNotificationsHandler = factory.createEventBridge(getSnapshotEventSubject(), properties);

            // listen to EventBridge
            EventManager.getDefaultManager().addListener(this, "processRemoteEvent", SnapshotEvent.class,
                    getSnapshotEventSubject(), remoteNotificationsHandler);

            // start EventBridge - it will listen to all event sources for this
            // subject
            remoteNotificationsHandler.startup(EventManager.getDefaultManager(),
                    EventBridge.RECEIVE_LOCAL_EXTERNAL);
        } catch (Exception ex) {
            throw new CayenneRuntimeException("Error initializing DataRowStore.", ex);
        }
    }
}

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From source file:org.opencastproject.oaipmh.server.OaiPmhRepositoryServlet.java

/**
 * Called by the ConfigurationAdmin service.
 * This method actually sets up the server.
 *///from w w w .  j  av  a2  s  .co  m
public synchronized void updated(Dictionary properties) throws ConfigurationException {
    logger.info("Updated");
    checkDictionary(properties, componentContext);
    // collect properties
    final String path = getCfg(properties, CFG_MOUNT_PATH);
    final SearchService searchService = (SearchService) componentContext.locateService("searchService");
    logger.info("Using search service " + searchService);
    final String baseUrl = getContextProperty(componentContext, PROP_SERVER_URL) + path;
    final String repositoryName = getCfg(properties, CFG_REPOSITORY_NAME);
    final String adminEmail = getContextProperty(componentContext, PROP_ADMIN_EMAIL);
    final Integer resultLimit = getCfgAsInt(properties, CFG_RESULT_LIMIT);
    final HttpService httpService = (HttpService) componentContext.locateService("httpService");
    // register servlet
    try {
        // ... and unregister first if necessary
        if (currentServletAlias != null)
            httpService.unregister(currentServletAlias);
        httpService.registerServlet(path, this, null, null);
        currentServletAlias = path;
        logger.info("Registering OAI-PMH server under " + path);
    } catch (Exception e) {
        throw new RuntimeException("Error registering OAI-PMH servlet", e);
    }
    // create repository
    repository = new OaiPmhRepository() {
        private Map resumptionTokens = Collections.synchronizedMap(new LRUMap(100));

        @Override
        public Granularity getRepositoryTimeGranularity() {
            return Granularity.DAY;
        }

        @Override
        public String getBaseUrl() {
            return baseUrl;
        }

        @Override
        public String getRepositoryName() {
            return repositoryName;
        }

        @Override
        public SearchService getSearchService() {
            return searchService;
        }

        @Override
        public String getAdminEmail() {
            return adminEmail;
        }

        @Override
        public String saveQuery(ResumableQuery query) {
            String token = DigestUtils.md5Hex(Double.toString(Math.random()));
            resumptionTokens.put(token, query);
            return token;
        }

        @Override
        public Option<ResumableQuery> getSavedQuery(String resumptionToken) {
            return option(((ResumableQuery) resumptionTokens.get(resumptionToken)));
        }

        @Override
        public int getResultLimit() {
            return resultLimit;
        }

        @Override
        public List<MetadataProvider> getMetadataProviders() {
            return metadataProviders;
        }
    };
}

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