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-rw-r--r--vendor/github.com/goamz/goamz/dynamodb/query.go111
1 files changed, 111 insertions, 0 deletions
diff --git a/vendor/github.com/goamz/goamz/dynamodb/query.go b/vendor/github.com/goamz/goamz/dynamodb/query.go
new file mode 100644
index 000000000..453e38733
--- /dev/null
+++ b/vendor/github.com/goamz/goamz/dynamodb/query.go
@@ -0,0 +1,111 @@
+package dynamodb
+
+import (
+ "errors"
+ "fmt"
+ simplejson "github.com/bitly/go-simplejson"
+)
+
+func (t *Table) Query(attributeComparisons []AttributeComparison) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ return runQuery(q, t)
+}
+
+func (t *Table) QueryOnIndex(attributeComparisons []AttributeComparison, indexName string) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddIndex(indexName)
+ return runQuery(q, t)
+}
+
+func (t *Table) QueryOnIndexDescending(attributeComparisons []AttributeComparison, indexName string) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddIndex(indexName)
+ q.ScanIndexDescending()
+ return runQuery(q, t)
+}
+
+func (t *Table) LimitedQuery(attributeComparisons []AttributeComparison, limit int64) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddLimit(limit)
+ return runQuery(q, t)
+}
+
+func (t *Table) LimitedQueryOnIndex(attributeComparisons []AttributeComparison, indexName string, limit int64) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddIndex(indexName)
+ q.AddLimit(limit)
+ return runQuery(q, t)
+}
+
+func (t *Table) LimitedQueryDescending(attributeComparisons []AttributeComparison, limit int64) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddLimit(limit)
+ q.ScanIndexDescending()
+ return runQuery(q, t)
+}
+
+func (t *Table) LimitedQueryOnIndexDescending(attributeComparisons []AttributeComparison, indexName string, limit int64) ([]map[string]*Attribute, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddIndex(indexName)
+ q.AddLimit(limit)
+ q.ScanIndexDescending()
+ return runQuery(q, t)
+}
+
+func (t *Table) CountQuery(attributeComparisons []AttributeComparison) (int64, error) {
+ q := NewQuery(t)
+ q.AddKeyConditions(attributeComparisons)
+ q.AddSelect("COUNT")
+ jsonResponse, err := t.Server.queryServer("DynamoDB_20120810.Query", q)
+ if err != nil {
+ return 0, err
+ }
+ json, err := simplejson.NewJson(jsonResponse)
+ if err != nil {
+ return 0, err
+ }
+
+ itemCount, err := json.Get("Count").Int64()
+ if err != nil {
+ return 0, err
+ }
+
+ return itemCount, nil
+}
+
+func runQuery(q *Query, t *Table) ([]map[string]*Attribute, error) {
+ jsonResponse, err := t.Server.queryServer("DynamoDB_20120810.Query", q)
+ if err != nil {
+ return nil, err
+ }
+
+ json, err := simplejson.NewJson(jsonResponse)
+ if err != nil {
+ return nil, err
+ }
+
+ itemCount, err := json.Get("Count").Int()
+ if err != nil {
+ message := fmt.Sprintf("Unexpected response %s", jsonResponse)
+ return nil, errors.New(message)
+ }
+
+ results := make([]map[string]*Attribute, itemCount)
+
+ for i, _ := range results {
+ item, err := json.Get("Items").GetIndex(i).Map()
+ if err != nil {
+ message := fmt.Sprintf("Unexpected response %s", jsonResponse)
+ return nil, errors.New(message)
+ }
+ results[i] = parseAttributes(item)
+ }
+ return results, nil
+}