Revision 6407
Added by Chris Jones over 12 years ago
| src/edu/ucsb/nceas/metacat/dataone/hazelcast/HazelcastService.java | ||
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import com.hazelcast.core.Hazelcast; |
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import com.hazelcast.core.HazelcastInstance; |
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import com.hazelcast.core.IMap; |
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import com.hazelcast.core.IdGenerator; |
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import com.hazelcast.core.InstanceEvent; |
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import com.hazelcast.core.InstanceListener; |
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/* The Hazelcast configuration */ |
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private Config hzConfig; |
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/* The task id namespace (for generating cluster-wide unqique task ids */ |
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private String taskIds; |
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/* The Hazelcast Id Genrator used to generate unique task ids */ |
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IdGenerator idGenerator; |
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/* |
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* Constructor: Creates an instance of the hazelcast service. Since |
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* this uses a singleton pattern, use getInstance() to gain the instance. |
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logMetacat.debug("HazelcastService.doRefresh() called.");
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try {
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File hzConfigFile = |
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new File(PropertyService.getProperty("dataone.hazelcast.configFilePath"));
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hzConfig = new Config(); |
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hzConfig.setConfigurationFile(hzConfigFile); |
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hzMember = Hazelcast.init(hzConfig); |
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File hzConfigFile = |
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new File(PropertyService.getProperty("dataone.hazelcast.configFilePath"));
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hzConfig = new Config(); |
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hzConfig.setConfigurationFile(hzConfigFile); |
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hzMember = Hazelcast.init(hzConfig); |
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taskIds = |
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PropertyService.getProperty("dataone.hazelcast.storageCluster.tasksIdNamespace");
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idGenerator = hzMember.getIdGenerator(taskIds); |
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} catch (PropertyNotFoundException e) {
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String msg = "Couldn't find the Hazelcast configuration file.";
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logMetacat.error(msg);
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throw new ServiceException(msg);
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String msg = "Couldn't find the Hazelcast configuration file.";
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logMetacat.error(msg);
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throw new ServiceException(msg);
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} catch (IllegalStateException e) {
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String msg = "This instance of Hazelcast has already been created.";
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logMetacat.error(msg);
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throw new ServiceException(msg);
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String msg = "This instance of Hazelcast has already been created.";
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logMetacat.error(msg);
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throw new ServiceException(msg);
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} |
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|
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*/ |
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public boolean refreshable() {
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// TODO: Determine the consequences of restarting the Hazelcast instance |
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// Set this to true if it's okay to drop from the cluster, lose the maps,
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// and start back up again
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return false;
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// Set this to true if it's okay to drop from the cluster, lose the maps,
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// and start back up again
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return false;
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} |
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|
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/** |
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* Listen for new Hazelcast member events |
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*/ |
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@Override
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@Override
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public void instanceCreated(InstanceEvent event) {
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logMetacat.info("New Hazelcast instance created: " +
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event.getInstance().getId() + ", " +
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event.getInstance().getInstanceType());
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logMetacat.info("New Hazelcast instance created: " +
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event.getInstance().getId() + ", " +
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event.getInstance().getInstanceType());
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} |
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@Override
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@Override
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public void instanceDestroyed(InstanceEvent event) {
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logMetacat.info("Hazelcast instance removed: " +
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event.getInstance().getId() + ", " +
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event.getInstance().getInstanceType());
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logMetacat.info("Hazelcast instance removed: " +
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event.getInstance().getId() + ", " +
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event.getInstance().getInstanceType());
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} |
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/**
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* Refresh the Hazelcast service by restarting it
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*/
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@Override
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/**
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* Refresh the Hazelcast service by restarting it
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*/
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@Override
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protected void doRefresh() throws ServiceException {
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// TODO: verify that the correct config file is still used
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// TODO: verify that the correct config file is still used
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Hazelcast.getLifecycleService().restart(); |
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} |
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} |
Also available in: Unified diff
Add in the Hazelcast Id generation namespace and an IdGenerator instance for task ids. Hazelcast will produce cluster-wide unique ids for the "task-ids" namespace, to be used when creating CNreplicationTask objects.