Examples with DistributedExoCache org.exoplatform.services.cache.impl.infinispan.distributed.DistributedExoCache used on opensource projects

Example 1 with DistributedExoCache

use of org.exoplatform.services.cache.impl.infinispan.distributed.DistributedExoCache in project kernel by exoplatform.

the class ExoCacheFactoryImpl method createCache.

/**
 * To create a new cache instance according to the given configuration, we follow the steps below:
 *
 * We first try to find if a specific location of the cache configuration has been defined thanks
 * to an external component plugin of type ExoCacheFactoryConfigPlugin. If so we use the default cache
 * configuration defined in this file otherwise we use the default cache configuration defined in
 * "${CACHE_CONFIG_TEMPLATE_KEY}"
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public ExoCache<Serializable, Object> createCache(final ExoCacheConfig config) throws ExoCacheInitException {
    final String region = config.getName();
    String CacheConfig = mappingCacheNameConfig.get(region);
    if (CacheConfig == null && config.isAsync() && asyncCacheTemplate != null && asyncCacheManager == null) {
        // use async template if cache use async mode
        this.asyncCacheManager = initCacheManager(asyncCacheTemplate);
    }
    final String customConfig = CacheConfig;
    final ExoCache<Serializable, Object> eXoCache;
    final DefaultCacheManager cacheManager;
    try {
        final ConfigurationBuilder confBuilder = new ConfigurationBuilder();
        if (customConfig != null) {
            try {
                cacheManager = SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<DefaultCacheManager>() {

                    public DefaultCacheManager run() throws Exception {
                        // A custom configuration has been set
                        if (LOG.isInfoEnabled())
                            LOG.info("A custom configuration has been set for the cache '" + region + "'.");
                        ParserRegistry parser = new ParserRegistry(Thread.currentThread().getContextClassLoader());
                        // Load the configuration
                        ConfigurationBuilderHolder holder = parser.parse(configManager.getInputStream(customConfig));
                        GlobalConfigurationBuilder configBuilder = holder.getGlobalConfigurationBuilder();
                        // Configure JGroups and JMX since it could affect the state of the Global Config
                        configureCacheManager(configBuilder);
                        GlobalConfiguration gc = configBuilder.build();
                        // Check if a CacheManager with the same GlobalConfiguration exists
                        DefaultCacheManager currentCacheManager = mappingGlobalConfigCacheManager.get(gc.transport().clusterName());
                        if (currentCacheManager == null) {
                            // Use a different cache manager name to prevent naming conflict
                            configBuilder.globalJmxStatistics().cacheManagerName(gc.globalJmxStatistics().cacheManagerName() + "_" + region + "_" + ctx.getName());
                            // No cache manager has been defined so far for this Cache Configuration
                            currentCacheManager = new DefaultCacheManager(configBuilder.build(), holder.getDefaultConfigurationBuilder().build(), false);
                            for (Entry<String, ConfigurationBuilder> entry : holder.getNamedConfigurationBuilders().entrySet()) {
                                currentCacheManager.defineConfiguration(entry.getKey(), entry.getValue().build());
                            }
                            currentCacheManager.start();
                            // We register this new cache manager
                            mappingGlobalConfigCacheManager.put(gc.transport().clusterName(), currentCacheManager);
                        }
                        return currentCacheManager;
                    }
                });
            } catch (PrivilegedActionException e) {
                Throwable cause = e.getCause();
                if (cause instanceof Exception) {
                    // NOSONAR
                    throw (Exception) cause;
                } else {
                    throw new Exception(e);
                }
            }
            confBuilder.read(cacheManager.getDefaultCacheConfiguration());
        } else if (config.isDistributed()) {
            // We expect a distributed cache
            if (distributedCacheManager == null) {
                throw new IllegalArgumentException("The DistributedCacheManager has not been defined in the configuration," + " please configure it at root container level if you want to use a distributed cache.");
            }
            return new DistributedExoCache(ctx, config, distributedCacheManager.getCache(DistributedExoCache.CACHE_NAME));
        } else {
            cacheManager = (config.isAsync() && asyncCacheManager != null) ? this.asyncCacheManager : this.cacheManager;
            // No custom configuration has been found, a configuration template will be used
            if (LOG.isInfoEnabled())
                LOG.info("The configuration template will be used for the cache '" + region + "'.");
            confBuilder.read(cacheManager.getDefaultCacheConfiguration());
            if (!config.isRepicated()) {
                // The cache is local
                confBuilder.clustering().cacheMode(CacheMode.LOCAL);
            }
        }
        // Reset the configuration to avoid conflicts
        resetConfiguration(confBuilder);
        final ExoCacheCreator creator = getExoCacheCreator(config);
        // Create the cache
        eXoCache = creator.create(config, confBuilder, new Callable<Cache<Serializable, Object>>() {

            public Cache<Serializable, Object> call() throws Exception {
                try {
                    return SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<Cache<Serializable, Object>>() {

                        public Cache<Serializable, Object> run() throws Exception {
                            // Define the configuration
                            cacheManager.defineConfiguration(region, confBuilder.build());
                            // create and start the cache
                            return cacheManager.getCache(region);
                        }
                    });
                } catch (PrivilegedActionException e) {
                    Throwable cause = e.getCause();
                    if (cause instanceof Exception) {
                        // NOSONAR
                        throw (Exception) cause;
                    } else {
                        throw new Exception(e);
                    }
                }
            }
        });
    } catch (// NOSONAR
    Exception e) {
        throw new ExoCacheInitException("The cache '" + region + "' could not be initialized", e);
    }
    return eXoCache;
}