| /* |
| * 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 org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.db.marshal.Int32Type; |
| import org.apache.cassandra.db.marshal.LongType; |
| import org.apache.cassandra.db.marshal.UTF8Type; |
| import org.apache.cassandra.dht.LocalPartitioner; |
| import org.apache.cassandra.metrics.ThreadPoolMetrics; |
| import org.apache.cassandra.schema.TableMetadata; |
| |
| import static org.apache.cassandra.metrics.CassandraMetricsRegistry.Metrics; |
| |
| final class ThreadPoolsTable extends AbstractVirtualTable |
| { |
| private static final String NAME = "name"; |
| private static final String ACTIVE_TASKS = "active_tasks"; |
| private static final String ACTIVE_TASKS_LIMIT = "active_tasks_limit"; |
| private static final String PENDING_TASKS = "pending_tasks"; |
| private static final String COMPLETED_TASKS = "completed_tasks"; |
| private static final String BLOCKED_TASKS = "blocked_tasks"; |
| private static final String BLOCKED_TASKS_ALL_TIME = "blocked_tasks_all_time"; |
| |
| ThreadPoolsTable(String keyspace) |
| { |
| super(TableMetadata.builder(keyspace, "thread_pools") |
| .kind(TableMetadata.Kind.VIRTUAL) |
| .partitioner(new LocalPartitioner(UTF8Type.instance)) |
| .addPartitionKeyColumn(NAME, UTF8Type.instance) |
| .addRegularColumn(ACTIVE_TASKS, Int32Type.instance) |
| .addRegularColumn(ACTIVE_TASKS_LIMIT, Int32Type.instance) |
| .addRegularColumn(PENDING_TASKS, Int32Type.instance) |
| .addRegularColumn(COMPLETED_TASKS, LongType.instance) |
| .addRegularColumn(BLOCKED_TASKS, LongType.instance) |
| .addRegularColumn(BLOCKED_TASKS_ALL_TIME, LongType.instance) |
| .build()); |
| } |
| |
| @Override |
| public DataSet data(DecoratedKey partitionKey) |
| { |
| String poolName = UTF8Type.instance.compose(partitionKey.getKey()); |
| |
| SimpleDataSet result = new SimpleDataSet(metadata()); |
| Metrics.getThreadPoolMetrics(poolName) |
| .ifPresent(metrics -> addRow(result, metrics)); |
| return result; |
| } |
| |
| @Override |
| public DataSet data() |
| { |
| SimpleDataSet result = new SimpleDataSet(metadata()); |
| Metrics.allThreadPoolMetrics() |
| .forEach(metrics -> addRow(result, metrics)); |
| return result; |
| } |
| |
| private void addRow(SimpleDataSet dataSet, ThreadPoolMetrics metrics) |
| { |
| dataSet.row(metrics.poolName) |
| .column(ACTIVE_TASKS, metrics.activeTasks.getValue()) |
| .column(ACTIVE_TASKS_LIMIT, metrics.maxPoolSize.getValue()) |
| .column(PENDING_TASKS, metrics.pendingTasks.getValue()) |
| .column(COMPLETED_TASKS, metrics.completedTasks.getValue()) |
| .column(BLOCKED_TASKS, metrics.currentBlocked.getCount()) |
| .column(BLOCKED_TASKS_ALL_TIME, metrics.totalBlocked.getCount()); |
| } |
| } |