listbuckets supports regionList parameter.

Author: huiguangjun

src/main/java/com/aliyun/oss/internal/OSSBucketOperation.java

@@ -144,6 +144,10 @@ public BucketList listBuckets(ListBucketsRequest listBucketRequest) throws OSSEx
             params.put(TAG_VALUE, listBucketRequest.getTagValue());
         }
 
+        if (listBucketRequest.getParameters() != null && listBucketRequest.getParameters().containsKey(SUBRESOURCE_REGION_LIST)) {
+            params.put(SUBRESOURCE_REGION_LIST, listBucketRequest.getParameters().get(SUBRESOURCE_REGION_LIST));
+        }
+
         Map<String, String> headers = new HashMap<String, String>();
         addOptionalResourceGroupIdHeader(headers, listBucketRequest.getResourceGroupId());
 

src/main/java/com/aliyun/oss/internal/RequestParameters.java

@@ -154,4 +154,7 @@ public final class RequestParameters {
     public static final String SUBRESOURCE_TRANSFER_ACCELERATION = "transferAcceleration";
 
     public static final String ACCESS_MONITOR = "accessmonitor";
+
+    public static final String SUBRESOURCE_REGION_LIST = "regionList";
+
 }

src/main/java/com/aliyun/oss/internal/SignParameters.java

@@ -42,6 +42,7 @@ public class SignParameters {
             SUBRESOURCE_INVENTORY, SUBRESOURCE_INVENTORY_ID, SUBRESOURCE_CONTINUATION_TOKEN, SUBRESOURCE_WORM,
             SUBRESOURCE_WORM_ID, SUBRESOURCE_WORM_EXTEND, SUBRESOURCE_CALLBACK, SUBRESOURCE_CALLBACK_VAR,
             SUBRESOURCE_DIR, SUBRESOURCE_RENAME, SUBRESOURCE_DIR_DELETE, SUBRESOURCE_TRANSFER_ACCELERATION,
-            X_OSS_AC_SOURCE_IP, X_OSS_AC_SUBNET_MASK, X_OSS_AC_VPC_ID, X_OSS_AC_FORWARD_ALLOW, META_QUERY, SUBRESOURCE_RESOURCE_GROUP});
+            X_OSS_AC_SOURCE_IP, X_OSS_AC_SUBNET_MASK, X_OSS_AC_VPC_ID, X_OSS_AC_FORWARD_ALLOW, META_QUERY, SUBRESOURCE_RESOURCE_GROUP,
+            SUBRESOURCE_REGION_LIST});
 
 }