private void showNodeCounts(ReadOperations read, DbStructureVisitor visitor) {
visitor.visitAllNodesCount(read.countsForNode(ANY_LABEL));
for (Label label : glops.getAllLabels()) {
int labelId = read.labelGetForName(label.name());
visitor.visitNodeCount(labelId, label.name(), read.countsForNode(labelId));
}
}
private void showRelCounts(ReadOperations read, DbStructureVisitor visitor) {
// all wildcards
noSide(read, visitor, WILDCARD_REL_TYPE, ANY_RELATIONSHIP_TYPE);
// one label only
for (Label label : glops.getAllLabels()) {
int labelId = read.labelGetForName(label.name());
leftSide(read, visitor, label, labelId, WILDCARD_REL_TYPE, ANY_RELATIONSHIP_TYPE);
rightSide(read, visitor, label, labelId, WILDCARD_REL_TYPE, ANY_RELATIONSHIP_TYPE);
}
// fixed rel type
for (RelationshipType relType : glops.getAllRelationshipTypes()) {
int relTypeId = read.relationshipTypeGetForName(relType.name());
noSide(read, visitor, relType, relTypeId);
for (Label label : glops.getAllLabels()) {
int labelId = read.labelGetForName(label.name());
// wildcard on right
leftSide(read, visitor, label, labelId, relType, relTypeId);
// wildcard on left
rightSide(read, visitor, label, labelId, relType, relTypeId);
}
}
}
private void showIndices(
DbStructureVisitor visitor, ReadOperations read, TokenNameLookup nameLookup)
throws IndexNotFoundKernelException {
Iterator<IndexDescriptor> indexDescriptors = read.indexesGetAll();
while (indexDescriptors.hasNext()) {
IndexDescriptor descriptor = indexDescriptors.next();
String userDescription = descriptor.userDescription(nameLookup);
double uniqueValuesPercentage = read.indexUniqueValuesSelectivity(descriptor);
visitor.visitIndex(descriptor, userDescription, uniqueValuesPercentage);
}
}
private void noSide(
ReadOperations read, DbStructureVisitor visitor, RelationshipType relType, int relTypeId) {
String userDescription = format("MATCH ()-[%s]->() RETURN count(*)", colon(relType.name()));
long amount = read.countsForRelationship(ANY_LABEL, relTypeId, ANY_LABEL);
visitor.visitRelCount(ANY_LABEL, relTypeId, ANY_LABEL, userDescription, amount);
}
private void showUniqueConstraints(
DbStructureVisitor visitor, ReadOperations read, TokenNameLookup nameLookup) {
Iterator<UniquenessConstraint> constraints = read.constraintsGetAll();
while (constraints.hasNext()) {
UniquenessConstraint constraint = constraints.next();
String userDescription = constraint.userDescription(nameLookup);
visitor.visitUniqueConstraint(constraint, userDescription);
}
}
public static void awaitIndexOnline(ReadOperations readOperations, IndexDescriptor indexRule)
throws IndexNotFoundKernelException {
long start = System.currentTimeMillis();
while (true) {
if (readOperations.indexGetState(indexRule) == InternalIndexState.ONLINE) {
break;
}
if (start + 1000 * 10 < System.currentTimeMillis()) {
throw new RuntimeException("Index didn't come online within a reasonable time.");
}
}
}
private void showLabels(ReadOperations read, DbStructureVisitor visitor) {
for (Label label : glops.getAllLabels()) {
int labelId = read.labelGetForName(label.name());
visitor.visitLabel(labelId, label.name());
}
}
private void showRelTypes(ReadOperations read, DbStructureVisitor visitor) {
for (RelationshipType relType : glops.getAllRelationshipTypes()) {
int relTypeId = read.relationshipTypeGetForName(relType.name());
visitor.visitRelationshipType(relTypeId, relType.name());
}
}
private void showPropertyKeys(ReadOperations read, DbStructureVisitor visitor) {
for (String propertyKeyName : glops.getAllPropertyKeys()) {
int propertyKeyId = read.propertyKeyGetForName(propertyKeyName);
visitor.visitPropertyKey(propertyKeyId, propertyKeyName);
}
}