Revision 6888
Added by Chris Jones almost 13 years ago
| src/edu/ucsb/nceas/metacat/dataone/hazelcast/SystemMetadataMap.java | ||
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import java.util.Collection; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Map; |
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import java.util.Set; |
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|
| ... | ... | |
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import org.dataone.service.types.v1.ObjectList; |
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import org.dataone.service.types.v1.SystemMetadata; |
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import com.hazelcast.core.Hazelcast; |
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import com.hazelcast.core.MapLoader; |
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import com.hazelcast.core.MapStore; |
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import edu.ucsb.nceas.metacat.IdentifierManager; |
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import edu.ucsb.nceas.metacat.McdbDocNotFoundException; |
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import edu.ucsb.nceas.metacat.dataone.CNodeService; |
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import edu.ucsb.nceas.metacat.properties.PropertyService; |
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import edu.ucsb.nceas.utilities.PropertyNotFoundException; |
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/** |
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* Storage implementation for Hazelcast System Metadata |
| ... | ... | |
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@Override |
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public Set<Identifier> loadAllKeys() {
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Set<Identifier> pids = new HashSet<Identifier>(); |
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//Set<Identifier> pids = new HashSet<Identifier>(); |
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String identifiersSet; |
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try {
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identifiersSet = |
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PropertyService.getProperty("dataone.hazelcast.storageCluster.identifiersSet");
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} catch (PropertyNotFoundException e1) {
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identifiersSet = "hzIdentifiers"; |
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} |
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Set<Identifier> pids = Hazelcast.getSet(identifiersSet); |
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try {
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ObjectList ol = IdentifierManager.getInstance().querySystemMetadata( |
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null, //startTime, |
| ... | ... | |
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); |
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for (ObjectInfo o: ol.getObjectInfoList()) {
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Identifier pid = o.getIdentifier(); |
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pids.add(pid); |
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if ( !pids.contains(pid) ) {
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pids.add(pid); |
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} |
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} |
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} catch (Exception e) {
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throw new RuntimeException(e.getMessage(), e); |
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} |
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return pids; |
Also available in: Unified diff
When loading all keys from Metacat into the hzSystemMetadata map, also load identifiers into the hzIdentifiers set if they are not already there. Although entries may be evicted from the map, the list of identifiers will remain. The list will have a fairly small memory footprint since it's just identifiers.