Check Web Server Availability

Run this as a scheduled agent to test the HTTP availability of a set server. Not a difficult one. It sends an e-mail...

at whatever interval the agent runs at to give a log of availability. import lotus.domino.*; import*; import java.util.*; public class JavaAgent extends AgentBase { URL url; String strSubject, strBody; Document docMail; public void NotesMain() { try { Session session = getSession(); AgentContext agentContext = session.getAgentContext(); docMail = agentContext.getCurrentDatabase().createDocument(); docMail.replaceItemValue("Form", "Memo"); URLConnection connURL; Vector vSendTo = new Vector(); vSendTo.addElement("your e-mail address goes here"); RichTextItem rti = docMail.createRichTextItem("Body"); try { url = new URL(""); try { connURL = url.openConnection(); connURL.connect(); strSubject = "OK"; rti.addNewLine(); for (int i=0; i<10 i++) { rti.appendText(connURL.getHeaderFieldKey(i) + " : " + connURL.getHeaderField(i)); rti.addNewLine(); } } catch (Exception e) { strSubject = "Good URL - cannot connect"; } } catch (MalformedURLException e) { strSubject = "bad URL"; } docMail.replaceItemValue("Subject", "Availability Test for " + url.toString() + " " + new Date() + " " + strSubject); docMail.send(false, vSendTo); } catch(Exception e) { e.printStackTrace(); } } }

This was first published in November 2000

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