[camel] 01/02: CAMEL-12118: DynamoDB: Execute query using secondary indexes

[acosentino]

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commit d9594601010c2fb7a8e1f2fadf463624001c84f5
Author: Fabrizio Spataro <fabrizio.spat...@bizmate.it>
AuthorDate: Wed Jan 3 15:18:27 2018 +0100

    CAMEL-12118: DynamoDB: Execute query using secondary indexes
---
 components/camel-aws/src/main/docs/aws-ddb-component.adoc     |  2 ++
 .../java/org/apache/camel/component/aws/ddb/DdbConstants.java |  2 ++
 .../java/org/apache/camel/component/aws/ddb/QueryCommand.java | 11 +++++++++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/components/camel-aws/src/main/docs/aws-ddb-component.adoc 
b/components/camel-aws/src/main/docs/aws-ddb-component.adoc
index 19544e9..cc3145b 100644
--- a/components/camel-aws/src/main/docs/aws-ddb-component.adoc
+++ b/components/camel-aws/src/main/docs/aws-ddb-component.adoc
@@ -105,6 +105,8 @@ returned.
 |`CamelAwsDdbConsistentRead` |`Boolean` |If set to true, then a consistent 
read is issued, otherwise eventually
 consistent is used.
 
+|`CamelAwsDdbIndexName` |`String` |If set will be used as Secondary Index for 
Query operation.
+
 |`CamelAwsDdbItem` |`Map<String, AttributeValue>` |A map of the attributes for 
the item, and must include the primary key
 values that define the item.
 
diff --git 
a/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/DdbConstants.java
 
b/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/DdbConstants.java
index 6c2dbae..6ababab 100644
--- 
a/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/DdbConstants.java
+++ 
b/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/DdbConstants.java
@@ -32,6 +32,8 @@ public interface DdbConstants {
     // String EXACT_COUNT = "CamelAwsDdbExactCount";
     // Removed from DynamoDB v1 to v2
     // String HASH_KEY_VALUE = "CamelAwsDdbHashKeyValue";
+    // Added INDEX_NAME for querying secondary indexes
+    String INDEX_NAME = "CamelAwsDdbIndexName";
     String ITEM = "CamelAwsDdbItem";
     String ITEMS = "CamelAwsDdbItems";
     String ITEM_COUNT = "CamelAwsDdbTableItemCount";
diff --git 
a/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/QueryCommand.java
 
b/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/QueryCommand.java
index 8719bfe..d64e9ee 100644
--- 
a/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/QueryCommand.java
+++ 
b/components/camel-aws/src/main/java/org/apache/camel/component/aws/ddb/QueryCommand.java
@@ -34,7 +34,7 @@ public class QueryCommand extends AbstractDdbCommand {
 
     @Override
     public void execute() {
-        QueryResult result = ddbClient.query(new QueryRequest()
+        QueryRequest query = new QueryRequest()
                 .withTableName(determineTableName())
                 .withAttributesToGet(determineAttributeNames())
                 .withConsistentRead(determineConsistentRead())
@@ -42,7 +42,14 @@ public class QueryCommand extends AbstractDdbCommand {
                 .withKeyConditions(determineKeyConditions())
                 .withExclusiveStartKey(determineStartKey())
                 .withLimit(determineLimit())
-                .withScanIndexForward(determineScanIndexForward()));
+                .withScanIndexForward(determineScanIndexForward());
+        
+        // Check if we have set an Index Name
+        if(exchange.getIn().getHeader(DdbConstants.INDEX_NAME, String.class) 
!= null) {
+            
query.withIndexName(exchange.getIn().getHeader(DdbConstants.INDEX_NAME, 
String.class));
+        }
+        
+        QueryResult result = ddbClient.query(query);
         
         Map tmp = new HashMap<>();
         tmp.put(DdbConstants.ITEMS, result.getItems());

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