📄 local-instances.jsp
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<%@ include file="/include/handler.jsp" %><%@ page import="org.archive.crawler.admin.CrawlJob,java.util.List" %><%@ page import="org.archive.crawler.Heritrix" %><%@ page import="java.util.Map" %><%@ page import="java.util.Iterator" %><% String title = "Instances"; int tab = 5; String error = null; String baseurl = request.getContextPath() + request.getServletPath(); Map m = Heritrix.getInstances(); String newName = request.getParameter("createName"); String d = request.getParameter("delete"); if (newName != null && newName.length() > 0) { // Create a new instance. new Heritrix(newName, true); } else if (d != null && d.length() > 0) { // Delete an instance. String name = request.getParameter("heritrixName"); if (m.size() <= 1) { // Don't remove all Heritrix instances. The UI goes loopy if // no Heritrix instance to go against. error = "ERROR: You cannot delete ALL instances of Heritrix. " + "There must be at least one instance remaining or the UI " + "gets confused (To be Fixed)."; } else { Heritrix h = (Heritrix)m.get(name); if (h != null) { h.destroy(); m = Heritrix.getInstances(); // If the heritrix instance deleted was the one seleted, select // another to be hook the UI on. if (heritrix == h) { if (m != null && m.size() > 0) { // Just get first Heritrix found. Object k = m.keySet().iterator().next(); heritrix = (Heritrix)m.get(k); handler = heritrix.getJobHandler(); application.setAttribute("heritrix", heritrix); application.setAttribute("handler", handler); } } } } } else { String q = request.getQueryString(); if (q != null && q.length() > 0) { // Then we've been passed a Heritrix key on the query line. // Select that instance. heritrix = (Heritrix)m.get(q); application.setAttribute("heritrix", heritrix); application.setAttribute("handler", heritrix.getJobHandler()); } }%><%@include file="/include/head.jsp"%><html> <head> <title>Local Heritrix Instances' List</title> <link rel="stylesheet" href="<%=request.getContextPath()%>/css/heritrix.css"> </head> <body> <h1>Local Heritrix Instances</h1> <% if (error != null && error.length() > 0) {%> <p class="flashMessage"><%=error%></p> <%}%> <p>Use this page to instantiate new instances of Heritrix. </p> <p>Below is a listing of the Heritrix instances currently running locally. To create a new instance, fill in the textbox below and hit <i>Create</i>. To peruse your newly created instance, select the instance name in the below list. This sets the UI running against the selected instance. To delete an instance, hit <i>Delete</i>. This will destroy the instance cleanly terminating any running jobs. Note, you cannot delete all Heritrix instances. The UI gets confused if doesn't have an instance to juggle. </p> <form action="<%=baseurl%>" method="POST"> <table border="0" cellspacing="0" cellpadding="2" description="List of all local Heritrix instances"> <thead> <tr> <th>Instance Name</th> <th>Status</th> </tr> </thead> <tbody> <% for (final Iterator i = m.keySet().iterator(); i.hasNext();) { String key = (String)i.next(); String url = baseurl + "?" + response.encodeURL(key); Heritrix h = (Heritrix)m.get(key); boolean currentSelection = (heritrix == h); String state = h.getStatus(); %> <tr> <td class="instance_name"><p><a href="<%=url%>"> <% if (currentSelection) { %> <b> <% } %> <input type="hidden" name="heritrixName" value="<%=key%>" /> <%=key.replace(",", ", ")%> <% if (currentSelection) { %> </b> <% } %> </a></p></td> <td><p><small><%=state%></small></p></td> <td><p><input type="submit" name="delete" value="Delete" /></p> </td> </tr> <% } %> </tbody> </table> </form> <p> <% if (heritrix.getMBeanName() == null) { %> To create new instances, Heritrix needs to be able to register with a JMX Agent. JMX is not enabled/available. See <a href="http://crawler.archive.org/articles/user_manual.html#mon_com">9.5 Remote Monitoring and Control</a> in the User Manual for more on JMX. <% } else { %> <form action="<%=baseurl%>" method="POST"> Name of new Heritrix instance: <input type="text" name="createName" size="32" /> <input type="submit" name="submit" value="Create"/> </form> <% } %> </p> </body></html>⌨️ 快捷键说明
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