| /* |
| * 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.ignite.internal.processors.query; |
| |
| import java.util.concurrent.atomic.AtomicReference; |
| import org.apache.ignite.internal.util.tostring.GridToStringExclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.jetbrains.annotations.Nullable; |
| import org.jsr166.ConcurrentLinkedDeque8; |
| |
| /** |
| * Query history metrics. |
| */ |
| public class QueryHistory { |
| /** Link to internal node in eviction deque. */ |
| @GridToStringExclude |
| private final AtomicReference<ConcurrentLinkedDeque8.Node<QueryHistory>> linkRef; |
| |
| /** Query history metrics immutable wrapper. */ |
| private volatile QueryHistoryMetricsValue val; |
| |
| /** Query history metrics group key. */ |
| private final QueryHistoryKey key; |
| |
| /** |
| * Constructor with metrics. |
| * |
| * @param qry Textual query representation. |
| * @param schema Schema name. |
| * @param loc {@code true} for local query. |
| * @param startTime Start time of query execution. |
| * @param duration Duration of query execution. |
| * @param failed {@code True} query executed unsuccessfully {@code false} otherwise. |
| */ |
| public QueryHistory(String qry, String schema, boolean loc, long startTime, long duration, boolean failed) { |
| key = new QueryHistoryKey(qry, schema, loc); |
| |
| long failures = failed ? 1 : 0; |
| |
| val = new QueryHistoryMetricsValue(1, failures, duration, duration, startTime); |
| |
| linkRef = new AtomicReference<>(); |
| } |
| |
| /** |
| * @return Metrics group key. |
| */ |
| public QueryHistoryKey key() { |
| return key; |
| } |
| |
| /** |
| * Aggregate new metrics with already existen. |
| * |
| * @param m Other metrics to take into account. |
| * @return Aggregated metrics. |
| */ |
| public QueryHistory aggregateWithNew(QueryHistory m) { |
| val = new QueryHistoryMetricsValue( |
| val.execs() + m.executions(), |
| val.failures() + m.failures(), |
| Math.min(val.minTime(), m.minimumTime()), |
| Math.max(val.maxTime(), m.maximumTime()), |
| Math.max(val.lastStartTime(), m.lastStartTime())); |
| |
| return this; |
| } |
| |
| /** |
| * @return Textual representation of query. |
| */ |
| public String query() { |
| return key.query(); |
| } |
| |
| /** |
| * @return Schema. |
| */ |
| public String schema() { |
| return key.schema(); |
| } |
| |
| /** |
| * @return {@code true} For query with enabled local flag. |
| */ |
| public boolean local() { |
| return key.local(); |
| } |
| |
| /** |
| * Gets total number execution of query. |
| * |
| * @return Number of executions. |
| */ |
| public long executions() { |
| return val.execs(); |
| } |
| |
| /** |
| * Gets number of times a query execution failed. |
| * |
| * @return Number of times a query execution failed. |
| */ |
| public long failures() { |
| return val.failures(); |
| } |
| |
| /** |
| * Gets minimum execution time of query. |
| * |
| * @return Minimum execution time of query. |
| */ |
| public long minimumTime() { |
| return val.minTime(); |
| } |
| |
| /** |
| * Gets maximum execution time of query. |
| * |
| * @return Maximum execution time of query. |
| */ |
| public long maximumTime() { |
| return val.maxTime(); |
| } |
| |
| /** |
| * Gets latest query start time. |
| * |
| * @return Latest time query was stared. |
| */ |
| public long lastStartTime() { |
| return val.lastStartTime(); |
| } |
| |
| /** |
| * @return Link to internal node in eviction deque. |
| */ |
| @Nullable public ConcurrentLinkedDeque8.Node<QueryHistory> link() { |
| return linkRef.get(); |
| } |
| |
| /** |
| * Atomically replace link to new. |
| * |
| * @param expLink Link which should be replaced. |
| * @param updatedLink New link which should be set. |
| * @return {@code true} If link has been updated. |
| */ |
| public boolean replaceLink(ConcurrentLinkedDeque8.Node<QueryHistory> expLink, |
| ConcurrentLinkedDeque8.Node<QueryHistory> updatedLink) { |
| return linkRef.compareAndSet(expLink, updatedLink); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(QueryHistory.class, this); |
| } |
| } |