private static AccumuloBackedGraph setupGraph(
Instance instance, Connector conn, String tableName, int numEntries) {
long ageOffTimeInMilliseconds = (30 * 24 * 60 * 60 * 1000L); // 30 days in milliseconds
try {
// Create table
// (this method creates the table, removes the versioning iterator, and adds the
// SetOfStatisticsCombiner iterator,
// and sets the age off iterator to age data off after it is more than
// ageOffTimeInMilliseconds milliseconds old).
TableUtils.createTable(conn, tableName, ageOffTimeInMilliseconds);
// Create numEntries edges and add to Accumulo
BatchWriter writer = conn.createBatchWriter(tableName, 1000000L, 1000L, 1);
for (int i = 0; i < numEntries; i++) {
Edge edge =
new Edge(
"customer",
"" + i,
"product",
"B",
"purchase",
"instore",
true,
visibilityString,
sevenDaysBefore,
sixDaysBefore);
SetOfStatistics statistics = new SetOfStatistics();
statistics.addStatistic("count", new Count(i));
Key key = ConversionUtils.getKeysFromEdge(edge).getFirst();
Value value = ConversionUtils.getValueFromSetOfStatistics(statistics);
Mutation m = new Mutation(key.getRow());
m.put(
key.getColumnFamily(),
key.getColumnQualifier(),
new ColumnVisibility(key.getColumnVisibility()),
key.getTimestamp(),
value);
writer.addMutation(m);
}
writer.close();
// Create Accumulo backed graph
AccumuloBackedGraph graph = new AccumuloBackedGraph(conn, tableName);
return graph;
} catch (AccumuloException e) {
fail("Failed to set up graph in Accumulo with exception: " + e);
} catch (AccumuloSecurityException e) {
fail("Failed to set up graph in Accumulo with exception: " + e);
} catch (TableExistsException e) {
fail("Failed to set up graph in Accumulo with exception: " + e);
} catch (TableNotFoundException e) {
fail("Failed to set up graph in Accumulo with exception: " + e);
}
return null;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((graphElement == null) ? 0 : graphElement.hashCode());
result = prime * result + ((setOfStatistics == null) ? 0 : setOfStatistics.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
GraphElementWithStatistics other = (GraphElementWithStatistics) obj;
if (graphElement == null) {
if (other.graphElement != null) return false;
} else if (!graphElement.equals(other.graphElement)) return false;
if (setOfStatistics == null) {
if (other.setOfStatistics != null) return false;
} else if (!setOfStatistics.equals(other.setOfStatistics)) return false;
return true;
}
public GraphElementWithStatistics clone() {
return new GraphElementWithStatistics(graphElement.clone(), setOfStatistics.clone());
}
