public function getLocalSecondaryIndices()
{
$description = $this->describe();
$lsiDefs = isset($description['LocalSecondaryIndexes']) ? $description['LocalSecondaryIndexes'] : null;
if (!$lsiDefs) {
return [];
}
$attrDefs = [];
foreach ($description['AttributeDefinitions'] as $attributeDefinition) {
$attrDefs[$attributeDefinition['AttributeName']] = $attributeDefinition['AttributeType'];
}
$lsis = [];
foreach ($lsiDefs as $lsiDef) {
$hashKey = null;
$hashKeyType = null;
$rangeKey = null;
$rangeKeyType = null;
foreach ($lsiDef['KeySchema'] as $keySchema) {
switch ($keySchema['KeyType']) {
case "HASH":
$hashKey = $keySchema['AttributeName'];
$hashKeyType = $attrDefs[$hashKey];
break;
case "RANGE":
$rangeKey = $keySchema['AttributeName'];
$rangeKeyType = $attrDefs[$rangeKey];
break;
}
}
$projectionType = $lsiDef['Projection']['ProjectionType'];
$projectedAttributes = isset($lsiDef['Projection']['NonKeyAttributes']) ? $lsiDef['Projection']['NonKeyAttributes'] : [];
$lsi = new DynamoDbIndex($hashKey, $hashKeyType, $rangeKey, $rangeKeyType, $projectionType, $projectedAttributes);
$lsi->setName($lsiDef['IndexName']);
$lsis[$lsi->getName()] = $lsi;
}
return $lsis;
}
