| /** |
| * 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.hadoop.test.system; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| |
| public class ProcessInfoImpl implements ProcessInfo { |
| |
| private int threadCount; |
| private long currentTime; |
| private long freemem; |
| private long maxmem; |
| private long totmem; |
| private Map<String, String> env; |
| private Map<String, String> props; |
| |
| public ProcessInfoImpl() { |
| env = new HashMap<String, String>(); |
| props = new HashMap<String, String>(); |
| } |
| |
| /** |
| * Construct a concrete process information object. <br/> |
| * |
| * @param threadCount |
| * count of threads. |
| * @param currentTime |
| * @param freemem |
| * @param maxmem |
| * @param totmem |
| * @param env environment list. |
| * @param props |
| */ |
| public ProcessInfoImpl(int threadCount, long currentTime, long freemem, |
| long maxmem, long totmem, Map<String, String> env, |
| Map<String, String> props) { |
| this.threadCount = threadCount; |
| this.currentTime = currentTime; |
| this.freemem = freemem; |
| this.maxmem = maxmem; |
| this.totmem = totmem; |
| this.env = env; |
| this.props = props; |
| } |
| |
| @Override |
| public int activeThreadCount() { |
| return threadCount; |
| } |
| |
| @Override |
| public long currentTimeMillis() { |
| return currentTime; |
| } |
| |
| @Override |
| public long freeMemory() { |
| return freemem; |
| } |
| |
| @Override |
| public Map<String, String> getEnv() { |
| return env; |
| } |
| |
| @Override |
| public Map<String,String> getSystemProperties() { |
| return props; |
| } |
| |
| @Override |
| public long maxMemory() { |
| return maxmem; |
| } |
| |
| @Override |
| public long totalMemory() { |
| return totmem; |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| this.threadCount = in.readInt(); |
| this.currentTime = in.readLong(); |
| this.freemem = in.readLong(); |
| this.maxmem = in.readLong(); |
| this.totmem = in.readLong(); |
| read(in, env); |
| read(in, props); |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| out.writeInt(threadCount); |
| out.writeLong(currentTime); |
| out.writeLong(freemem); |
| out.writeLong(maxmem); |
| out.writeLong(totmem); |
| write(out, env); |
| write(out, props); |
| } |
| |
| private void read(DataInput in, Map<String, String> map) throws IOException { |
| int size = in.readInt(); |
| for (int i = 0; i < size; i = i + 2) { |
| String key = in.readUTF(); |
| String value = in.readUTF(); |
| map.put(key, value); |
| } |
| } |
| |
| private void write(DataOutput out, Map<String, String> map) |
| throws IOException { |
| int size = (map.size() * 2); |
| out.writeInt(size); |
| for (Map.Entry<String, String> entry : map.entrySet()) { |
| out.writeUTF(entry.getKey()); |
| out.writeUTF(entry.getValue()); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuffer strBuf = new StringBuffer(); |
| strBuf.append(String.format("active threads : %d\n", threadCount)); |
| strBuf.append(String.format("current time : %d\n", currentTime)); |
| strBuf.append(String.format("free memory : %d\n", freemem)); |
| strBuf.append(String.format("total memory : %d\n", totmem)); |
| strBuf.append(String.format("max memory : %d\n", maxmem)); |
| strBuf.append("Environment Variables : \n"); |
| for (Map.Entry<String, String> entry : env.entrySet()) { |
| strBuf.append(String.format("key : %s value : %s \n", entry.getKey(), |
| entry.getValue())); |
| } |
| return strBuf.toString(); |
| } |
| |
| } |