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//---PACKAGE DECLARATION--- |
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|
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//---IMPORTS--- |
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|
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import java.io.*; |
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import java.net.*; |
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import java.util.*; |
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|
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/** |
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* Gathers system information then outputs it as XML |
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* Collects data based on properties gained from the configurator |
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* then packages these up using XMLFormatter and outputs them if |
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* the timeout has passed. |
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* |
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* @author $Author: ab11 $ |
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* @version $Id: SystemMonitor.java,v 1.5 2000/12/07 18:25:37 ab11 Exp $ |
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*/ |
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class SystemMonitor { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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/** |
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* Public constructor for the class. Takes in a Config object to gain its |
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* properties from. |
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* |
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*/ |
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public SystemMonitor( Config config ){ |
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// create a new instace, get the info we need out of config |
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// like things to monitor |
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|
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lastCheck = System.currentTimeMillis(); |
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sequence = 1; |
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|
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|
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// why oh why wont ultra edit let me put Long in the next line? oh its trying to |
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// correct keywords =| |
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try { |
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udpcheckInterval = Long.parseLong(config.getProperty("UDPUpdateTime")) * 1000; |
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} |
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catch ( NumberFormatException e ){ |
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System.out.println("The value for UDPUpdateTime is invalid, using a default"); |
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// 5 mins |
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udpcheckInterval = 5000 * 60; |
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} |
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// make the check interval into seconds |
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|
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} |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* Gathers system information and will black until the timeout has passed. |
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* |
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* @return the system information in an XML packet |
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*/ |
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public String getInfo(){ |
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// called to retrieve the stored averages and output them as a XML string |
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String host = new String(); |
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String ip = new String(); |
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try { |
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host = InetAddress.getLocalHost().getHostName(); |
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ip = InetAddress.getLocalHost().getHostAddress(); |
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} catch(UnknownHostException e) { |
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System.out.println(e); |
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} |
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String date = Long.toString(System.currentTimeMillis()); |
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XMLFormatter xml = new XMLFormatter("packet", "machine_name=\""+host+"\" ip=\""+ip+"\" date=\""+date+"\" seq_no=\""+sequence+"\""); |
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|
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// get and decode the data |
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DecodeCPU_TXT details = new DecodeCPU_TXT(); |
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|
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// add the decoded info |
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xml.addString(details.getItems()); |
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|
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|
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// MUST FIX THIS..!!!! |
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try { |
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long updateIn = ( lastCheck + udpcheckInterval )-System.currentTimeMillis(); |
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if ( updateIn > 0 ){ |
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Thread.sleep(updateIn); |
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} |
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else |
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{ |
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Thread.sleep(defaultUpdateTime); |
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} |
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} |
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catch( InterruptedException e ){ |
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System.out.println("Sleep interrupted"); |
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} |
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|
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// increment sequence. |
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sequence++; |
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lastCheck = System.currentTimeMillis(); |
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|
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// finally return a string |
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return xml.returnXML(); |
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} // getinfo() |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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//---ATTRIBUTES--- |
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|
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private long lastCheck; |
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private int sequence; |
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private long udpcheckInterval; |
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private final long defaultUpdateTime = 60000; |
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|
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//---STATIC ATTRIBUTES--- |
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|
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} // class |
