Return-Path: X-Original-To: apmail-accumulo-commits-archive@www.apache.org Delivered-To: apmail-accumulo-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B064510AD3 for ; Sat, 7 Sep 2013 03:29:04 +0000 (UTC) Received: (qmail 38598 invoked by uid 500); 7 Sep 2013 03:28:30 -0000 Delivered-To: apmail-accumulo-commits-archive@accumulo.apache.org Received: (qmail 38163 invoked by uid 500); 7 Sep 2013 03:28:15 -0000 Mailing-List: contact commits-help@accumulo.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@accumulo.apache.org Delivered-To: mailing list commits@accumulo.apache.org Received: (qmail 37507 invoked by uid 99); 7 Sep 2013 03:28:08 -0000 Received: from tyr.zones.apache.org (HELO tyr.zones.apache.org) (140.211.11.114) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 07 Sep 2013 03:28:08 +0000 Received: by tyr.zones.apache.org (Postfix, from userid 65534) id 59D6F90314F; Sat, 7 Sep 2013 03:28:08 +0000 (UTC) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: ctubbsii@apache.org To: commits@accumulo.apache.org Date: Sat, 07 Sep 2013 03:28:37 -0000 Message-Id: <2e58fb2d9b574d94a2e140cb35f59d94@git.apache.org> In-Reply-To: References: X-Mailer: ASF-Git Admin Mailer Subject: [34/59] [abbrv] ACCUMULO-656,ACCUMULO-658 Update package names http://git-wip-us.apache.org/repos/asf/accumulo/blob/e0533561/server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/BasicServlet.java ---------------------------------------------------------------------- diff --git a/server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/BasicServlet.java b/server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/BasicServlet.java new file mode 100644 index 0000000..186bd43 --- /dev/null +++ b/server/monitor/src/main/java/org/apache/accumulo/monitor/servlets/BasicServlet.java @@ -0,0 +1,269 @@ +/* + * 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.accumulo.monitor.servlets; + +import java.io.IOException; +import java.io.PrintWriter; +import java.io.StringWriter; +import java.io.UnsupportedEncodingException; +import java.net.URLDecoder; +import java.net.URLEncoder; +import java.util.Date; +import java.util.TimerTask; + +import javax.servlet.ServletException; +import javax.servlet.http.Cookie; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.apache.accumulo.core.Constants; +import org.apache.accumulo.core.conf.Property; +import org.apache.accumulo.monitor.LogService; +import org.apache.accumulo.monitor.Monitor; +import org.apache.accumulo.server.client.HdfsZooInstance; +import org.apache.accumulo.server.util.time.SimpleTimer; +import org.apache.log4j.Logger; + +abstract public class BasicServlet extends HttpServlet { + + private static final long serialVersionUID = 1L; + protected static final Logger log = Logger.getLogger(BasicServlet.class); + static String cachedInstanceName = null; + private static String bannerText; + private static String bannerColor; + private static String bannerBackground; + + abstract protected String getTitle(HttpServletRequest req); + + @Override + public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + StringBuilder sb = new StringBuilder(); + try { + Monitor.fetchData(); + bannerText = sanitize(Monitor.getSystemConfiguration().get(Property.MONITOR_BANNER_TEXT)); + bannerColor = Monitor.getSystemConfiguration().get(Property.MONITOR_BANNER_COLOR).replace("'", "'"); + bannerBackground = Monitor.getSystemConfiguration().get(Property.MONITOR_BANNER_BACKGROUND).replace("'", "'"); + pageStart(req, resp, sb); + pageBody(req, resp, sb); + pageEnd(req, resp, sb); + } catch (Throwable t) { + log.error("Error building page " + req.getRequestURI(), t); + sb.append("\n
\n");
+      StringWriter sw = new StringWriter();
+      t.printStackTrace(new PrintWriter(sw));
+      sb.append(sanitize(sw.getBuffer().toString()));
+      sb.append("
\n"); + } finally { + resp.getWriter().print(sb); + resp.getWriter().flush(); + } + } + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + doGet(req, resp); + } + + private static final String DEFAULT_CONTENT_TYPE = "text/html"; + + public static final Cookie getCookie(HttpServletRequest req, String name) { + if (req.getCookies() != null) + for (Cookie c : req.getCookies()) + if (c.getName().equals(name)) + return c; + return null; + } + + protected void pageStart(HttpServletRequest req, HttpServletResponse resp, StringBuilder sb) throws Exception { + resp.setContentType(DEFAULT_CONTENT_TYPE); + int refresh = -1; + Cookie c = getCookie(req, "page.refresh.rate"); + if (c != null && c.getValue() != null) { + try { + refresh = Integer.parseInt(c.getValue()); + } catch (NumberFormatException e) { + // ignore improperly formatted user cookie + } + } + synchronized (BasicServlet.class) { + // Learn our instance name asynchronously so we don't hang up if zookeeper is down + if (cachedInstanceName == null) { + SimpleTimer.getInstance().schedule(new TimerTask() { + @Override + public void run() { + synchronized (BasicServlet.class) { + if (cachedInstanceName == null) { + cachedInstanceName = HdfsZooInstance.getInstance().getInstanceName(); + } + } + } + }, 1000); + } + } + + // BEGIN PAGE + sb.append("\n"); + sb.append("\n"); + + // BEGIN HEADER + sb.append("\n"); + sb.append("").append(getTitle(req)).append(" - Accumulo ").append(Constants.VERSION).append("\n"); + if ((refresh > 0) && (req.getRequestURI().startsWith("/docs") == false) && (req.getRequestURI().startsWith("/vis") == false) + && (req.getRequestURI().startsWith("/shell") == false)) + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + + sb.append("\n"); + sb.append("\n"); + sb.append("\n"); + + sb.append("\n"); + + // BEGIN BODY OPENING + sb.append("\n\n"); + sb.append("
\n"); + sb.append("
\n"); + sb.append("