/* * Copyright 2012-2015 org.opencloudb. * * 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 org.opencloudb.response; import java.nio.ByteBuffer; import org.opencloudb.MycatServer; import org.opencloudb.config.Fields; import org.opencloudb.manager.ManagerConnection; import org.opencloudb.mysql.PacketUtil; import org.opencloudb.net.NIOProcessor; import org.opencloudb.net.mysql.EOFPacket; import org.opencloudb.net.mysql.FieldPacket; import org.opencloudb.net.mysql.ResultSetHeaderPacket; import org.opencloudb.net.mysql.RowDataPacket; import org.opencloudb.util.IntegerUtil; import org.opencloudb.util.LongUtil; /** * 查看处理器状态 * * @author mycat * @author mycat */ public final class ShowProcessor { private static final int FIELD_COUNT = 10; 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("NET_IN", Fields.FIELD_TYPE_LONGLONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("NET_OUT", Fields.FIELD_TYPE_LONGLONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("REACT_COUNT", Fields.FIELD_TYPE_LONGLONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("R_QUEUE", Fields.FIELD_TYPE_LONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("W_QUEUE", Fields.FIELD_TYPE_LONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("FREE_BUFFER", Fields.FIELD_TYPE_LONGLONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("TOTAL_BUFFER", Fields.FIELD_TYPE_LONGLONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("FC_COUNT", Fields.FIELD_TYPE_LONG); fields[i++].packetId = ++packetId; fields[i] = PacketUtil.getField("BC_COUNT", Fields.FIELD_TYPE_LONG); fields[i++].packetId = ++packetId; eof.packetId = ++packetId; } public static void execute(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 (NIOProcessor p : MycatServer.getInstance().getProcessors()) { RowDataPacket row = getRow(p, c.getCharset()); row.packetId = ++packetId; buffer = row.write(buffer, c); } // write last eof EOFPacket lastEof = new EOFPacket(); lastEof.packetId = ++packetId; buffer = lastEof.write(buffer, c); // write buffer c.write(buffer); } private static RowDataPacket getRow(NIOProcessor processor, String charset) { RowDataPacket row = new RowDataPacket(FIELD_COUNT); row.add(processor.getName().getBytes()); row.add(LongUtil.toBytes(processor.getNetInBytes())); row.add(LongUtil.toBytes(processor.getNetOutBytes())); row.add(LongUtil.toBytes(processor.getReactCount())); row.add(IntegerUtil.toBytes(processor.getRegisterQueueSize())); row.add(IntegerUtil.toBytes(processor.getWriteQueueSize())); row.add(IntegerUtil.toBytes(processor.getBufferPool().size())); row.add(IntegerUtil.toBytes(processor.getBufferPool().capacity())); row.add(IntegerUtil.toBytes(processor.getFrontends().size())); row.add(IntegerUtil.toBytes(processor.getBackends().size())); return row; } }