/*
* Copyright 1999-2012 Alibaba Group.
*
* Licensed 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 com.alibaba.cobar.manager.response;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import com.alibaba.cobar.CobarConfig;
import com.alibaba.cobar.CobarNode;
import com.alibaba.cobar.CobarServer;
import com.alibaba.cobar.config.Fields;
import com.alibaba.cobar.heartbeat.CobarHeartbeat;
import com.alibaba.cobar.heartbeat.MySQLHeartbeat;
import com.alibaba.cobar.manager.ManagerConnection;
import com.alibaba.cobar.mysql.MySQLDataNode;
import com.alibaba.cobar.mysql.PacketUtil;
import com.alibaba.cobar.net.mysql.EOFPacket;
import com.alibaba.cobar.net.mysql.FieldPacket;
import com.alibaba.cobar.net.mysql.ResultSetHeaderPacket;
import com.alibaba.cobar.net.mysql.RowDataPacket;
import com.alibaba.cobar.parser.util.Pair;
import com.alibaba.cobar.parser.util.PairUtil;
import com.alibaba.cobar.util.IntegerUtil;
import com.alibaba.cobar.util.LongUtil;
/**
* @author xianmao.hexm
*/
public class ShowHeartbeat {
private static final int FIELD_COUNT = 11;
private static final ResultSetHeaderPacket header = PacketUtil.getHeader(FIELD_COUNT);
private static final FieldPacket[] fields = new FieldPacket[FIELD_COUNT];
private static final EOFPacket eof = new EOFPacket();
static {
int i = 0;
byte packetId = 0;
header.packetId = ++packetId;
fields[i] = PacketUtil.getField("NAME", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("TYPE", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("HOST", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("PORT", Fields.FIELD_TYPE_LONG);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("RS_CODE", Fields.FIELD_TYPE_LONG);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("RETRY", Fields.FIELD_TYPE_LONG);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("STATUS", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("TIMEOUT", Fields.FIELD_TYPE_LONGLONG);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("EXECUTE_TIME", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("LAST_ACTIVE_TIME", Fields.FIELD_TYPE_DATETIME);
fields[i++].packetId = ++packetId;
fields[i] = PacketUtil.getField("STOP", Fields.FIELD_TYPE_VAR_STRING);
fields[i++].packetId = ++packetId;
eof.packetId = ++packetId;
}
public static void response(ManagerConnection c) {
ByteBuffer buffer = c.allocate();
// write header
buffer = header.write(buffer, c);
// write fields
for (FieldPacket field : fields) {
buffer = field.write(buffer, c);
}
// write eof
buffer = eof.write(buffer, c);
// write rows
byte packetId = eof.packetId;
for (RowDataPacket row : getRows()) {
row.packetId = ++packetId;
buffer = row.write(buffer, c);
}
// write last eof
EOFPacket lastEof = new EOFPacket();
lastEof.packetId = ++packetId;
buffer = lastEof.write(buffer, c);
// post write
c.write(buffer);
}
private static List<RowDataPacket> getRows() {
List<RowDataPacket> list = new LinkedList<RowDataPacket>();
CobarConfig conf = CobarServer.getInstance().getConfig();
// cobar nodes
Map<String, CobarNode> cobarNodes = conf.getCluster().getNodes();
List<String> cobarNodeKeys = new ArrayList<String>(cobarNodes.size());
cobarNodeKeys.addAll(cobarNodes.keySet());
Collections.sort(cobarNodeKeys);
for (String key : cobarNodeKeys) {
CobarNode node = cobarNodes.get(key);
if (node != null) {
CobarHeartbeat hb = node.getHeartbeat();
RowDataPacket row = new RowDataPacket(FIELD_COUNT);
row.add(node.getName().getBytes());
row.add("COBAR".getBytes());
row.add(node.getConfig().getHost().getBytes());
row.add(IntegerUtil.toBytes(node.getConfig().getPort()));
row.add(IntegerUtil.toBytes(hb.getStatus()));
row.add(IntegerUtil.toBytes(hb.getErrorCount()));
row.add(hb.isChecking() ? "checking".getBytes() : "idle".getBytes());
row.add(LongUtil.toBytes(hb.getTimeout()));
row.add(hb.getRecorder().get().getBytes());
String at = hb.lastActiveTime();
row.add(at == null ? null : at.getBytes());
row.add(hb.isStop() ? "true".getBytes() : "false".getBytes());
list.add(row);
}
}
// data nodes
Map<String, MySQLDataNode> dataNodes = conf.getDataNodes();
List<String> dataNodeKeys = new ArrayList<String>(dataNodes.size());
dataNodeKeys.addAll(dataNodes.keySet());
Collections.sort(dataNodeKeys, new Comparators<String>());
for (String key : dataNodeKeys) {
MySQLDataNode node = dataNodes.get(key);
if (node != null) {
MySQLHeartbeat hb = node.getHeartbeat();
RowDataPacket row = new RowDataPacket(FIELD_COUNT);
row.add(node.getName().getBytes());
row.add("MYSQL".getBytes());
if (hb != null) {
row.add(hb.getSource().getConfig().getHost().getBytes());
row.add(IntegerUtil.toBytes(hb.getSource().getConfig().getPort()));
row.add(IntegerUtil.toBytes(hb.getStatus()));
row.add(IntegerUtil.toBytes(hb.getErrorCount()));
row.add(hb.isChecking() ? "checking".getBytes() : "idle".getBytes());
row.add(LongUtil.toBytes(hb.getTimeout()));
row.add(hb.getRecorder().get().getBytes());
String lat = hb.getLastActiveTime();
row.add(lat == null ? null : lat.getBytes());
row.add(hb.isStop() ? "true".getBytes() : "false".getBytes());
} else {
row.add(null);
row.add(null);
row.add(null);
row.add(null);
row.add(null);
row.add(null);
row.add(null);
row.add(null);
row.add(null);
}
list.add(row);
}
}
return list;
}
private static final class Comparators<T> implements Comparator<String> {
@Override
public int compare(String s1, String s2) {
Pair<String, Integer> p1 = PairUtil.splitIndex(s1, '[', ']');
Pair<String, Integer> p2 = PairUtil.splitIndex(s2, '[', ']');
if (p1.getKey().compareTo(p2.getKey()) == 0) {
return p1.getValue() - p2.getValue();
} else {
return p1.getKey().compareTo(p2.getKey());
}
}
}
}