org.apache.pulsar.common.policies.data.PersistentOfflineTopicStats Maven / Gradle / Ivy
/*
* 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.pulsar.common.policies.data;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* This object is populated using meta data in zookeeper without actually bringing the topic online.
*/
public class PersistentOfflineTopicStats {
/** Space used to store the messages for the topic (bytes). */
public long storageSize;
/** Total number of messages. */
public long totalMessages;
/** Total backlog. */
public long messageBacklog;
/** Broker host where this stat was generated. */
public final String brokerName;
/** Offline topic name. */
public final String topicName;
/** Data ledger ids. */
public List dataLedgerDetails;
/** Cursor ledger ids and backlog. */
public Map cursorDetails;
/** Timestamp when stat was generated. */
public Date statGeneratedAt;
public PersistentOfflineTopicStats(String topicName, String brokerName) {
this.brokerName = brokerName;
this.topicName = topicName;
this.dataLedgerDetails = new ArrayList<>();
this.cursorDetails = new HashMap<>();
this.statGeneratedAt = new Date(System.currentTimeMillis());
}
public void reset() {
this.storageSize = 0;
this.totalMessages = 0;
this.messageBacklog = 0;
this.dataLedgerDetails.clear();
this.cursorDetails.clear();
this.statGeneratedAt.setTime(System.currentTimeMillis());
}
/**
* Details about a cursor.
*/
public static class CursorDetails {
public long cursorBacklog;
public long cursorLedgerId;
public CursorDetails(long cursorBacklog, long cursorLedgerId) {
this.cursorBacklog = cursorBacklog;
this.cursorLedgerId = cursorLedgerId;
}
}
public void addCursorDetails(String cursor, long backlog, long ledgerId) {
this.cursorDetails.put(cursor, new CursorDetails(backlog, ledgerId));
}
public void addLedgerDetails(long entries, long timestamp, long size, long ledgerId) {
this.dataLedgerDetails.add(new LedgerDetails(entries, timestamp, size, ledgerId));
}
/**
* Details about a ledger.
*/
public static class LedgerDetails {
public long entries;
public long timestamp;
public long size;
public long ledgerId;
public LedgerDetails(long entries, long timestamp, long size, long ledgerId) {
this.entries = entries;
this.timestamp = timestamp;
this.size = size;
this.ledgerId = ledgerId;
}
}
}