Java tutorial
/* * Copyright 2012 Nodeable Inc * * 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.streamreduce.core.transformer.message; import java.util.Map; import java.util.Properties; import java.util.Set; import java.util.TreeSet; import com.mongodb.BasicDBObject; import com.streamreduce.core.event.EventId; import com.streamreduce.core.model.Event; import com.streamreduce.core.model.messages.details.SobaMessageDetails; import com.streamreduce.util.MessageUtils; public class AgentMessageTransformer extends SobaMessageTransformer implements MessageTransformer { public AgentMessageTransformer(Properties messageProperties, SobaMessageDetails messageDetails) { super(messageProperties, messageDetails); } /** * {@inheritDoc} */ @Override public String doTransform(Event event) { EventId eventId = event.getEventId(); Map<String, Object> eventMetadata = event.getMetadata(); String msg = ""; switch (eventId) { case ACTIVITY: BasicDBObject payload = (BasicDBObject) eventMetadata.get("payload"); StringBuilder sb = new StringBuilder(); sb.append("Current system overview at ").append(eventMetadata.get("activityGenerated")) // Should we format this? .append("\n\n"); sb.append("Uptime: ").append(payload.getString("uptime")).append("s\n").append("Disk usage:\n"); BasicDBObject partitionsObj = (BasicDBObject) payload.get("partitions"); Set<String> partitions = new TreeSet<>(partitionsObj.keySet()); for (String key : partitions) { BasicDBObject partition = (BasicDBObject) partitionsObj.get(key); double totalAsKb = partition.getDouble("total"); // Certain devices show as 0.00GB and should be pruned if (totalAsKb == 0) { continue; } double totalAsGB = MessageUtils.kbToGB(totalAsKb); double usedAsGB = MessageUtils.kbToGB(partition.getDouble("used")); double freeAsGB = MessageUtils.kbToGB(partition.getDouble("free")); sb.append(" ").append(key).append(": Total ").append(MessageUtils.roundAndTruncate(totalAsGB, 2)) .append("GB, Used ").append(MessageUtils.roundAndTruncate(usedAsGB, 2)).append("GB, Free ") .append(MessageUtils.roundAndTruncate(freeAsGB, 2)).append("GB\n"); } sb.append("Disk I/O:\n"); BasicDBObject diskIO = (BasicDBObject) payload.get("disk_io"); Set<String> disks = new TreeSet<>(diskIO.keySet()); if (disks.size() == 0) { sb.append(" Unavailable\n"); } else { for (String key : disks) { BasicDBObject disk = (BasicDBObject) diskIO.get(key); long reads = disk.getLong("read_count"); long writes = disk.getLong("write_count"); double gbRead = MessageUtils.kbToGB(disk.getLong("read_kbytes")); double gbWrite = MessageUtils.kbToGB(disk.getLong("write_kbytes")); long readSecs = disk.getLong("read_time"); long writeSecs = disk.getLong("write_time"); sb.append(" ").append(key).append(": Reads ").append(reads).append(", Writes ").append(writes) .append(", GB Read ").append(MessageUtils.roundAndTruncate(gbRead, 2)) .append(", GB Written ").append(MessageUtils.roundAndTruncate(gbWrite, 2)) .append(", Read Time ").append(readSecs).append("s, Write Time ").append(writeSecs) .append("s\n"); } } sb.append("Network I/O:\n"); BasicDBObject netIO = (BasicDBObject) payload.get("network_io"); Set<String> nics = new TreeSet<>(netIO.keySet()); int nicsDisplayed = 0; for (String key : nics) { BasicDBObject nic = (BasicDBObject) netIO.get(key); long packetsIn = nic.getInt("packets_in"); long packetsOut = nic.getInt("packets_out"); // Certain devices show 0 packets in/out and should be pruned if (packetsIn == 0 && packetsOut == 0) { continue; } double gbIn = MessageUtils.kbToGB(nic.getLong("kbytes_in")); double gbOut = MessageUtils.kbToGB(nic.getLong("kbytes_out")); sb.append(" ").append(key).append(": Packets In ").append(packetsIn).append(", Packets Out ") .append(packetsOut).append(", GB In ").append(MessageUtils.roundAndTruncate(gbIn, 2)) .append(", GB Out ").append(MessageUtils.roundAndTruncate(gbOut, 2)).append("\n"); nicsDisplayed++; } if (nicsDisplayed == 0) { sb.append(" Unavailable\n"); } sb.append("Load: 1m ").append(MessageUtils.roundAndTruncate(payload.getDouble("load_avg_0"), 2)) .append(", ").append("5m ") .append(MessageUtils.roundAndTruncate(payload.getDouble("load_avg_1"), 2)).append(", ") .append("15m ").append(MessageUtils.roundAndTruncate(payload.getDouble("load_avg_2"), 2)) .append("\n"); float gbTotalRAM = (float) MessageUtils.kbToGB(payload.getLong("phy_ram_total")); float gbUsedRAM = (float) MessageUtils.kbToGB(payload.getLong("phy_ram_used")); float gbFreeRAM = (float) MessageUtils.kbToGB(payload.getLong("phy_ram_free")); sb.append("Real Mem: Total ").append(MessageUtils.roundAndTruncate(gbTotalRAM, 2)).append("GB, Used ") .append(MessageUtils.roundAndTruncate(gbUsedRAM, 2)).append("GB, Free ") .append(MessageUtils.roundAndTruncate(gbFreeRAM, 2)).append("GB\n"); double gbTotalVRAM = MessageUtils.kbToGB(payload.getLong("vir_ram_total")); double gbUsedVRAM = MessageUtils.kbToGB(payload.getLong("vir_ram_used")); double gbFreeVRAM = MessageUtils.kbToGB(payload.getLong("vir_ram_free")); sb.append("Virt Mem: Total ").append(MessageUtils.roundAndTruncate(gbTotalVRAM, 2)).append("GB, Used ") .append(MessageUtils.roundAndTruncate(gbUsedVRAM, 2)).append("GB, Free ") .append(MessageUtils.roundAndTruncate(gbFreeVRAM, 2)).append("GB\n"); sb.append("Processes: ").append(payload.getInt("processes")).append("\n"); sb.append("Users: Total ").append(payload.getInt("users_total")).append(", Unique ") .append(payload.getInt("users_unique")).append("\n"); msg = sb.toString(); break; default: super.doTransform(event); break; } return msg; } }