| /* |
| * 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.Date; |
| |
| import org.apache.cassandra.db.marshal.BooleanType; |
| import org.apache.cassandra.db.marshal.LongType; |
| import org.apache.cassandra.db.marshal.TimestampType; |
| 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; |
| import org.apache.cassandra.service.snapshot.TableSnapshot; |
| |
| public class SnapshotsTable extends AbstractVirtualTable |
| { |
| private static final String NAME = "name"; |
| private static final String KEYSPACE_NAME = "keyspace_name"; |
| private static final String TABLE_NAME = "table_name"; |
| private static final String TRUE_SIZE = "true_size"; |
| private static final String SIZE_ON_DISK = "size_on_disk"; |
| private static final String CREATED_AT = "created_at"; |
| private static final String EXPIRES_AT = "expires_at"; |
| private static final String EPHEMERAL = "ephemeral"; |
| |
| SnapshotsTable(String keyspace) |
| { |
| super(TableMetadata.builder(keyspace, "snapshots") |
| .comment("available snapshots") |
| .kind(TableMetadata.Kind.VIRTUAL) |
| .partitioner(new LocalPartitioner(UTF8Type.instance)) |
| .addPartitionKeyColumn(NAME, UTF8Type.instance) |
| .addClusteringColumn(KEYSPACE_NAME, UTF8Type.instance) |
| .addClusteringColumn(TABLE_NAME, UTF8Type.instance) |
| .addRegularColumn(TRUE_SIZE, LongType.instance) |
| .addRegularColumn(SIZE_ON_DISK, LongType.instance) |
| .addRegularColumn(CREATED_AT, TimestampType.instance) |
| .addRegularColumn(EXPIRES_AT, TimestampType.instance) |
| .addRegularColumn(EPHEMERAL, BooleanType.instance) |
| .build()); |
| } |
| |
| @Override |
| public DataSet data() |
| { |
| SimpleDataSet result = new SimpleDataSet(metadata()); |
| |
| for (TableSnapshot tableSnapshot : StorageService.instance.snapshotManager.loadSnapshots()) |
| { |
| SimpleDataSet row = result.row(tableSnapshot.getTag(), |
| tableSnapshot.getKeyspaceName(), |
| tableSnapshot.getTableName()) |
| .column(TRUE_SIZE, tableSnapshot.computeTrueSizeBytes()) |
| .column(SIZE_ON_DISK, tableSnapshot.computeSizeOnDiskBytes()) |
| .column(CREATED_AT, new Date(tableSnapshot.getCreatedAt().toEpochMilli())); |
| |
| if (tableSnapshot.isExpiring()) |
| row.column(EXPIRES_AT, new Date(tableSnapshot.getExpiresAt().toEpochMilli())); |
| |
| row.column(EPHEMERAL, tableSnapshot.isEphemeral()); |
| } |
| |
| return result; |
| } |
| } |