[GitHub] [cassandra] Maxwell-Guo commented on a diff in pull request #2117: Add a virtual table to list snapshots for CASSANDRA-18102

["Maxwell-Guo (via GitHub)" <gi...@apache.org>]

Maxwell-Guo commented on code in PR #2117:
URL: https://github.com/apache/cassandra/pull/2117#discussion_r1100201808


##########
src/java/org/apache/cassandra/db/virtual/SnapshotsTable.java:
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@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.cassandra.db.virtual;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.management.openmbean.TabularData;
+import javax.management.openmbean.TabularDataSupport;
+import com.google.common.collect.ImmutableMap;
+
+import org.apache.cassandra.db.SnapshotDetailsTabularData;
+import org.apache.cassandra.db.marshal.BooleanType;
+import org.apache.cassandra.db.marshal.LongType;
+import org.apache.cassandra.db.marshal.UTF8Type;
+import org.apache.cassandra.dht.LocalPartitioner;
+import org.apache.cassandra.schema.TableMetadata;
+import org.apache.cassandra.service.StorageService;
+
+public class SnapshotsTable extends AbstractVirtualTable
+{
+    private static final String SNAPSHOT_NAME = "snapshot_name";
+    private static final String KEYSPACE_NAME = "keyspace_name";
+    private static final String COLUMNFAMILY_NAME = "columnfamily_name";
+    private static final String TRUE_SIZE = "true_size";
+    private static final String SIZE_ON_DISK = "size_on_disk";
+    private static final String CREATE_TIME = "created_at";
+    private static final String EXPIRATION_TIME = "expires_at";
+    private static final String EPHEMERAL = "ephemeral";
+    
+    SnapshotsTable(String keyspace)
+    {
+        super(TableMetadata.builder(keyspace, "snapshots")
+                           .comment("tables snapshots")
+                           .kind(TableMetadata.Kind.VIRTUAL)
+                           .partitioner(new LocalPartitioner(UTF8Type.instance))
+                           .addPartitionKeyColumn(SNAPSHOT_NAME, UTF8Type.instance)

Review Comment:
   hi @smiklosovic ，thanks so much. Busy these days so I feel sorry for the delay in replying to the message.
   I have already finished the above work.
   Besides I hope you can take a look at the reply of naming below.Thanks



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