datarouter node updates to address sonar issues

Change-Id: I941b54a720f7a51236a024c857dd30f726dd482a
Issue-ID: DMAAP-557
Signed-off-by: Ronan Keogh <ronan.keogh@ericsson.com>

5 files changed, 204 insertions, 151 deletions

diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryTask.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryTask.java
index c28827a0..7e10d5a0 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryTask.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/DeliveryTask.java
@@ -79,33 +79,31 @@ public class DeliveryTask implements Runnable, Comparable<DeliveryTask> {
         boolean monly = di.isMetaDataOnly();
         date = Long.parseLong(pubid.substring(0, pubid.indexOf('.')));
         Vector<String[]> hdrv = new Vector<String[]>();
-        try {
-            try(BufferedReader br = new BufferedReader(new FileReader(metafile))){
-                String s = br.readLine();
-                int i = s.indexOf('\t');
-                method = s.substring(0, i);
-                if (!"DELETE".equals(method) && !monly) {
-                    length = datafile.length();
+
+        try (BufferedReader br = new BufferedReader(new FileReader(metafile))) {
+            String s = br.readLine();
+            int i = s.indexOf('\t');
+            method = s.substring(0, i);
+            if (!"DELETE".equals(method) && !monly) {
+                length = datafile.length();
+            }
+            fileid = s.substring(i + 1);
+            while ((s = br.readLine()) != null) {
+                i = s.indexOf('\t');
+                String h = s.substring(0, i);
+                String v = s.substring(i + 1);
+                if ("x-att-dr-routing".equalsIgnoreCase(h)) {
+                    subid = v.replaceAll("[^ ]*/", "");
+                    feedid = dth.getFeedId(subid.replaceAll(" .*", ""));
                 }
-                fileid = s.substring(i + 1);
-                while ((s = br.readLine()) != null) {
-                    i = s.indexOf('\t');
-                    String h = s.substring(0, i);
-                    String v = s.substring(i + 1);
-                    if ("x-att-dr-routing".equalsIgnoreCase(h)) {
-                        subid = v.replaceAll("[^ ]*/", "");
-                        feedid = dth.getFeedId(subid.replaceAll(" .*", ""));
-                    }
-                    if (length == 0 && h.toLowerCase().startsWith("content-")) {
-                        continue;
-                    }
-                    if (h.equalsIgnoreCase("content-type")) {
-                        ctype = v;
-                    }
-                    hdrv.add(new String[]{h, v});
+                if (length == 0 && h.toLowerCase().startsWith("content-")) {
+                    continue;
+                }
+                if (h.equalsIgnoreCase("content-type")) {
+                    ctype = v;
                 }
+                hdrv.add(new String[]{h, v});
             }
-
         } catch (Exception e) {
             loggerDeliveryTask.error("Exception "+e.getStackTrace(),e);
         }
@@ -191,29 +189,24 @@ public class DeliveryTask implements Runnable, Comparable<DeliveryTask> {
                 }
                 if (os != null) {
                     long sofar = 0;
-                    try {
+                    try (InputStream is = new FileInputStream(datafile)) {
                         byte[] buf = new byte[1024 * 1024];
-                        try(InputStream is = new FileInputStream(datafile)){
-                            while (sofar < length) {
-                                int i = buf.length;
-                                if (sofar + i > length) {
-                                    i = (int) (length - sofar);
-                                }
-                                i = is.read(buf, 0, i);
-                                if (i <= 0) {
-                                    throw new IOException("Unexpected problem reading data file " + datafile);
-                                }
-                                sofar += i;
-                                os.write(buf, 0, i);
+                        while (sofar < length) {
+                            int i = buf.length;
+                            if (sofar + i > length) {
+                                i = (int) (length - sofar);
                             }
-                            is.close();
-                            os.close();
+                            i = is.read(buf, 0, i);
+                            if (i <= 0) {
+                                throw new IOException("Unexpected problem reading data file " + datafile);
+                            }
+                            sofar += i;
+                            os.write(buf, 0, i);
                         }
-
+                        os.close();
                     } catch (IOException ioe) {
                         dth.reportDeliveryExtra(this, sofar);
                         throw ioe;
-
                     }
                 }
             }
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/LogManager.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/LogManager.java
index ade47730..ee81a321 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/LogManager.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/LogManager.java
@@ -22,22 +22,28 @@
  ******************************************************************************/
 package org.onap.dmaap.datarouter.node;
 
-import java.util.*;
-import java.util.regex.*;
-import java.io.*;
-import java.nio.file.*;
-import java.text.*;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.TimerTask;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 /**
  * Cleanup of old log files.
  * <p>
- * Periodically scan the log directory for log files that are older than
- * the log file retention interval, and delete them.  In a future release,
- * This class will also be responsible for uploading events logs to the
- * log server to support the log query APIs.
+ * Periodically scan the log directory for log files that are older than the log file retention interval, and delete
+ * them.  In a future release, This class will also be responsible for uploading events logs to the log server to
+ * support the log query APIs.
  */
 
 public class LogManager extends TimerTask {
+
     private NodeConfigManager config;
     private Matcher isnodelog;
     private Matcher iseventlog;
@@ -46,6 +52,7 @@ public class LogManager extends TimerTask {
     private String logdir;
 
     private class Uploader extends Thread implements DeliveryQueueHelper {
+
         public long getInitFailureTimer() {
             return (10000L);
         }
@@ -92,7 +99,9 @@ public class LogManager extends TimerTask {
         private DeliveryQueue dq;
 
         public Uploader() {
-            dq = new DeliveryQueue(this, new DestInfo("LogUpload", uploaddir, null, null, null, config.getMyName(), config.getMyAuth(), false, false));
+            dq = new DeliveryQueue(this,
+                new DestInfo("LogUpload", uploaddir, null, null, null, config.getMyName(), config.getMyAuth(), false,
+                    false));
             setDaemon(true);
             setName("Log Uploader");
             start();
@@ -154,11 +163,9 @@ public class LogManager extends TimerTask {
                     f.delete();
                 }
             }
-            try {
+            try (Writer w = new FileWriter(uploaddir + "/.lastqueued")) {
                 (new File(uploaddir + "/.meta")).delete();
-                Writer w = new FileWriter(uploaddir + "/.lastqueued");
                 w.write(lastqueued + "\n");
-                w.close();
             } catch (Exception e) {
             }
         }
@@ -167,10 +174,8 @@ public class LogManager extends TimerTask {
     /**
      * Construct a log manager
      * <p>
-     * The log manager will check for expired log files every 5 minutes
-     * at 20 seconds after the 5 minute boundary.  (Actually, the
-     * interval is the event log rollover interval, which
-     * defaults to 5 minutes).
+     * The log manager will check for expired log files every 5 minutes at 20 seconds after the 5 minute boundary.
+     * (Actually, the interval is the event log rollover interval, which defaults to 5 minutes).
      */
     public LogManager(NodeConfigManager config) {
         this.config = config;
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeMain.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeMain.java
index 006dc88c..e0f6b7f6 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeMain.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeMain.java
@@ -23,13 +23,19 @@
 
 package org.onap.dmaap.datarouter.node;
 
-import org.eclipse.jetty.http.HttpVersion;
-import org.eclipse.jetty.servlet.*;
-import org.eclipse.jetty.util.ssl.*;
-import org.eclipse.jetty.server.*;
-import org.apache.log4j.Logger;
-
 import java.util.Arrays;
+import org.apache.log4j.Logger;
+import org.eclipse.jetty.http.HttpVersion;
+import org.eclipse.jetty.server.Connector;
+import org.eclipse.jetty.server.HttpConfiguration;
+import org.eclipse.jetty.server.HttpConnectionFactory;
+import org.eclipse.jetty.server.SecureRequestCustomizer;
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.server.ServerConnector;
+import org.eclipse.jetty.server.SslConnectionFactory;
+import org.eclipse.jetty.servlet.ServletContextHandler;
+import org.eclipse.jetty.servlet.ServletHolder;
+import org.eclipse.jetty.util.ssl.SslContextFactory;
 
 /**
  * The main starting point for the Data Router node
@@ -60,7 +66,9 @@ public class NodeMain {
                 try {
                     wait();
                 } catch (Exception exception) {
-                    nodeMainLogger.debug("NodeMain: waitForConfig exception. Exception Message:- " + exception.toString(), exception);
+                    nodeMainLogger
+                        .debug("NodeMain: waitForConfig exception. Exception Message:- " + exception.toString(),
+                            exception);
                 }
             }
             localNodeConfigManager.deregisterConfigTask(this);
@@ -123,14 +131,15 @@ public class NodeMain {
             httpsConfiguration.addCustomizer(secureRequestCustomizer);
 
             // HTTPS connector
-            ServerConnector httpsServerConnector = new ServerConnector(server,
+            try (ServerConnector httpsServerConnector = new ServerConnector(server,
                 new SslConnectionFactory(sslContextFactory, HttpVersion.HTTP_1_1.asString()),
-                new HttpConnectionFactory(httpsConfiguration));
-            httpsServerConnector.setPort(nodeConfigManager.getHttpsPort());
-            httpsServerConnector.setIdleTimeout(500000);
-            httpsServerConnector.setAcceptQueueSize(2);
+                new HttpConnectionFactory(httpsConfiguration))) {
+                httpsServerConnector.setPort(nodeConfigManager.getHttpsPort());
+                httpsServerConnector.setIdleTimeout(500000);
+                httpsServerConnector.setAcceptQueueSize(2);
 
-            server.setConnectors(new Connector[]{httpServerConnector, httpsServerConnector});
+                server.setConnectors(new Connector[]{httpServerConnector, httpsServerConnector});
+            }
         }
         ctxt = new ServletContextHandler(0);
         ctxt.setContextPath("/");
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
index 5d11206c..9ddbc25a 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/NodeServlet.java
@@ -24,20 +24,28 @@
 
 package org.onap.dmaap.datarouter.node;
 
-import javax.servlet.*;
-import javax.servlet.http.*;
-import java.util.*;
-import java.util.regex.*;
-import java.io.*;
-import java.nio.file.*;
-
-import org.apache.log4j.Logger;
-import org.onap.dmaap.datarouter.node.eelf.EelfMsgs;
-
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-
-import java.net.*;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.net.Socket;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Enumeration;
+import java.util.regex.Pattern;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import org.apache.log4j.Logger;
+import org.onap.dmaap.datarouter.node.eelf.EelfMsgs;
 
 /**
  * Servlet for handling all http and https requests to the data router node
@@ -51,23 +59,25 @@ import java.net.*;
  * PUT/DELETE https://<i>node</i>/publish/<i>feedid</i>/<i>fileid</i> - publsh request
  */
 public class NodeServlet extends HttpServlet {
+
     private static Logger logger = Logger.getLogger("org.onap.dmaap.datarouter.node.NodeServlet");
     private static NodeConfigManager config;
     private static Pattern MetaDataPattern;
     private static SubnetMatcher internalsubnet = new SubnetMatcher("135.207.136.128/25");
     //Adding EELF Logger Rally:US664892
-    private static EELFLogger eelflogger = EELFManager.getInstance().getLogger("org.onap.dmaap.datarouter.node.NodeServlet");
+    private static EELFLogger eelflogger = EELFManager.getInstance()
+        .getLogger("org.onap.dmaap.datarouter.node.NodeServlet");
 
     static {
         try {
-            String ws = "\\s*";
+            final String ws = "\\s*";
             // assume that \\ and \" have been replaced by X
-            String string = "\"[^\"]*\"";
+            final String string = "\"[^\"]*\"";
             //String string = "\"(?:[^\"\\\\]|\\\\.)*\"";
-            String number = "[+-]?(?:\\.\\d+|(?:0|[1-9]\\d*)(?:\\.\\d*)?)(?:[eE][+-]?\\d+)?";
-            String value = "(?:" + string + "|" + number + "|null|true|false)";
-            String item = string + ws + ":" + ws + value + ws;
-            String object = ws + "\\{" + ws + "(?:" + item + "(?:" + "," + ws + item + ")*)?\\}" + ws;
+            final String number = "[+-]?(?:\\.\\d+|(?:0|[1-9]\\d*)(?:\\.\\d*)?)(?:[eE][+-]?\\d+)?";
+            final String value = "(?:" + string + "|" + number + "|null|true|false)";
+            final String item = string + ws + ":" + ws + value + ws;
+            final String object = ws + "\\{" + ws + "(?:" + item + "(?:" + "," + ws + item + ")*)?\\}" + ws;
             MetaDataPattern = Pattern.compile(object, Pattern.DOTALL);
         } catch (Exception e) {
         }
@@ -95,7 +105,8 @@ public class NodeServlet extends HttpServlet {
      */
     protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         NodeUtils.setIpAndFqdnForEelf("doGet");
-        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"), getIdFromPath(req) + "");
+        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"),
+            getIdFromPath(req) + "");
         if (down(resp)) {
             return;
         }
@@ -130,13 +141,13 @@ public class NodeServlet extends HttpServlet {
                 resp.setContentType("text/plain");
                 resp.setContentLength((int) fn.length());
                 resp.setStatus(200);
-                InputStream is = new FileInputStream(fn);
-                OutputStream os = resp.getOutputStream();
-                int i;
-                while ((i = is.read(buf)) > 0) {
-                    os.write(buf, 0, i);
+                try (InputStream is = new FileInputStream(fn)) {
+                    OutputStream os = resp.getOutputStream();
+                    int i;
+                    while ((i = is.read(buf)) > 0) {
+                        os.write(buf, 0, i);
+                    }
                 }
-                is.close();
                 return;
             }
             if (path.startsWith("/internal/rtt/")) {
@@ -161,7 +172,6 @@ public class NodeServlet extends HttpServlet {
         }
         logger.info("NODE0103 Rejecting invalid GET of " + path + " from " + ip);
         resp.sendError(HttpServletResponse.SC_NOT_FOUND);
-        return;
     }
 
     /**
@@ -169,7 +179,8 @@ public class NodeServlet extends HttpServlet {
      */
     protected void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         NodeUtils.setIpAndFqdnForEelf("doPut");
-        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"), getIdFromPath(req) + "");
+        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"),
+            getIdFromPath(req) + "");
         common(req, resp, true);
     }
 
@@ -178,30 +189,36 @@ public class NodeServlet extends HttpServlet {
      */
     protected void doDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
         NodeUtils.setIpAndFqdnForEelf("doDelete");
-        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"), getIdFromPath(req) + "");
+        eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader("X-ATT-DR-ON-BEHALF-OF"),
+            getIdFromPath(req) + "");
         common(req, resp, false);
     }
 
-    private void common(HttpServletRequest req, HttpServletResponse resp, boolean isput) throws ServletException, IOException {
+    private void common(HttpServletRequest req, HttpServletResponse resp, boolean isput)
+        throws ServletException, IOException {
         if (down(resp)) {
             return;
         }
         if (!req.isSecure()) {
-            logger.info("NODE0104 Rejecting insecure PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
+            logger.info(
+                "NODE0104 Rejecting insecure PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
             resp.sendError(HttpServletResponse.SC_FORBIDDEN, "https required on publish requests");
             return;
         }
         String fileid = req.getPathInfo();
         if (fileid == null) {
-            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
+            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req
+                .getRemoteAddr());
+            resp.sendError(HttpServletResponse.SC_NOT_FOUND,
+                "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
             return;
         }
         String feedid = null;
         String user = null;
         String credentials = req.getHeader("Authorization");
         if (credentials == null) {
-            logger.info("NODE0106 Rejecting unauthenticated PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
+            logger.info("NODE0106 Rejecting unauthenticated PUT or DELETE of " + req.getPathInfo() + " from " + req
+                .getRemoteAddr());
             resp.sendError(HttpServletResponse.SC_FORBIDDEN, "Authorization header required");
             return;
         }
@@ -215,8 +232,10 @@ public class NodeServlet extends HttpServlet {
             fileid = fileid.substring(9);
             int i = fileid.indexOf('/');
             if (i == -1 || i == fileid.length() - 1) {
-                logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
-                resp.sendError(HttpServletResponse.SC_NOT_FOUND, "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.  Possible missing fileid.");
+                logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req
+                    .getRemoteAddr());
+                resp.sendError(HttpServletResponse.SC_NOT_FOUND,
+                    "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.  Possible missing fileid.");
                 return;
             }
             feedid = fileid.substring(0, i);
@@ -234,13 +253,17 @@ public class NodeServlet extends HttpServlet {
             pubid = req.getHeader("X-ATT-DR-PUBLISH-ID");
             targets = config.parseRouting(req.getHeader("X-ATT-DR-ROUTING"));
         } else {
-            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
+            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req
+                .getRemoteAddr());
+            resp.sendError(HttpServletResponse.SC_NOT_FOUND,
+                "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
             return;
         }
         if (fileid.indexOf('/') != -1) {
-            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req.getRemoteAddr());
-            resp.sendError(HttpServletResponse.SC_NOT_FOUND, "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
+            logger.info("NODE0105 Rejecting bad URI for PUT or DELETE of " + req.getPathInfo() + " from " + req
+                .getRemoteAddr());
+            resp.sendError(HttpServletResponse.SC_NOT_FOUND,
+                "Invalid request URI.  Expecting <feed-publishing-url>/<fileid>.");
             return;
         }
         String qs = req.getQueryString();
@@ -257,7 +280,9 @@ public class NodeServlet extends HttpServlet {
             logurl = "https://" + hp + "/publish/" + feedid + "/" + fileid;
             String reason = config.isPublishPermitted(feedid, credentials, ip);
             if (reason != null) {
-                logger.info("NODE0111 Rejecting unauthorized publish attempt to feed " + feedid + " fileid " + fileid + " from " + ip + " reason " + reason);
+                logger.info(
+                    "NODE0111 Rejecting unauthorized publish attempt to feed " + feedid + " fileid " + fileid + " from "
+                        + ip + " reason " + reason);
                 resp.sendError(HttpServletResponse.SC_FORBIDDEN, reason);
                 return;
             }
@@ -270,7 +295,9 @@ public class NodeServlet extends HttpServlet {
                     port = ":" + iport;
                 }
                 String redirto = "https://" + newnode + port + "/publish/" + feedid + "/" + fileid;
-                logger.info("NODE0108 Redirecting publish attempt for feed " + feedid + " user " + user + " ip " + ip + " to " + redirto);
+                logger.info(
+                    "NODE0108 Redirecting publish attempt for feed " + feedid + " user " + user + " ip " + ip + " to "
+                        + redirto);
                 resp.sendRedirect(redirto);
                 return;
             }
@@ -291,12 +318,12 @@ public class NodeServlet extends HttpServlet {
                 String hn = (String) hnames.nextElement();
                 String hnlc = hn.toLowerCase();
                 if ((isput && ("content-type".equals(hnlc) ||
-                        "content-language".equals(hnlc) ||
-                        "content-md5".equals(hnlc) ||
-                        "content-range".equals(hnlc))) ||
-                        "x-att-dr-meta".equals(hnlc) ||
-                        (feedid == null && "x-att-dr-received".equals(hnlc)) ||
-                        (hnlc.startsWith("x-") && !hnlc.startsWith("x-att-dr-"))) {
+                    "content-language".equals(hnlc) ||
+                    "content-md5".equals(hnlc) ||
+                    "content-range".equals(hnlc))) ||
+                    "x-att-dr-meta".equals(hnlc) ||
+                    (feedid == null && "x-att-dr-received".equals(hnlc)) ||
+                    (hnlc.startsWith("x-") && !hnlc.startsWith("x-att-dr-"))) {
                     Enumeration hvals = req.getHeaders(hn);
                     while (hvals.hasMoreElements()) {
                         String hv = (String) hvals.nextElement();
@@ -305,12 +332,16 @@ public class NodeServlet extends HttpServlet {
                         }
                         if ("x-att-dr-meta".equals(hnlc)) {
                             if (hv.length() > 4096) {
-                                logger.info("NODE0109 Rejecting publish attempt with metadata too long for feed " + feedid + " user " + user + " ip " + ip);
+                                logger.info(
+                                    "NODE0109 Rejecting publish attempt with metadata too long for feed " + feedid
+                                        + " user " + user + " ip " + ip);
                                 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Metadata too long");
                                 return;
                             }
                             if (!MetaDataPattern.matcher(hv.replaceAll("\\\\.", "X")).matches()) {
-                                logger.info("NODE0109 Rejecting publish attempt with malformed metadata for feed " + feedid + " user " + user + " ip " + ip);
+                                logger.info(
+                                    "NODE0109 Rejecting publish attempt with malformed metadata for feed " + feedid
+                                        + " user " + user + " ip " + ip);
                                 resp.sendError(HttpServletResponse.SC_BAD_REQUEST, "Malformed metadata");
                                 return;
                             }
@@ -339,7 +370,8 @@ public class NodeServlet extends HttpServlet {
                     exlen = Long.parseLong(req.getHeader("Content-Length"));
                 } catch (Exception e) {
                 }
-                StatusLog.logPubFail(pubid, feedid, logurl, req.getMethod(), ctype, exlen, data.length(), ip, user, ioe.getMessage());
+                StatusLog.logPubFail(pubid, feedid, logurl, req.getMethod(), ctype, exlen, data.length(), ip, user,
+                    ioe.getMessage());
                 throw ioe;
             }
             Path dpath = Paths.get(fbase);
@@ -361,9 +393,12 @@ public class NodeServlet extends HttpServlet {
             }
             resp.setStatus(HttpServletResponse.SC_NO_CONTENT);
             resp.getOutputStream().close();
-            StatusLog.logPub(pubid, feedid, logurl, req.getMethod(), ctype, data.length(), ip, user, HttpServletResponse.SC_NO_CONTENT);
+            StatusLog.logPub(pubid, feedid, logurl, req.getMethod(), ctype, data.length(), ip, user,
+                HttpServletResponse.SC_NO_CONTENT);
         } catch (IOException ioe) {
-            logger.info("NODE0110 IO Exception receiving publish attempt for feed " + feedid + " user " + user + " ip " + ip + " " + ioe.toString(), ioe);
+            logger.info(
+                "NODE0110 IO Exception receiving publish attempt for feed " + feedid + " user " + user + " ip " + ip
+                    + " " + ioe.toString(), ioe);
             throw ioe;
         } finally {
             if (is != null) {
@@ -397,8 +432,9 @@ public class NodeServlet extends HttpServlet {
 
     private int getIdFromPath(HttpServletRequest req) {
         String path = req.getPathInfo();
-        if (path == null || path.length() < 2)
+        if (path == null || path.length() < 2) {
             return -1;
+        }
         try {
             return Integer.parseInt(path.substring(1));
         } catch (NumberFormatException e) {
diff --git a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/RedirManager.java b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/RedirManager.java
index a557e7ad..7e4078f8 100644
--- a/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/RedirManager.java
+++ b/datarouter-node/src/main/java/org/onap/dmaap/datarouter/node/RedirManager.java
@@ -24,13 +24,18 @@
 
 package org.onap.dmaap.datarouter.node;
 
-import java.util.*;
-import java.io.*;
+import java.io.BufferedReader;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.OutputStream;
+import java.util.Hashtable;
+import java.util.Timer;
 
 /**
  * Track redirections of subscriptions
  */
 public class RedirManager {
+
     private Hashtable<String, String> sid2primary = new Hashtable<String, String>();
     private Hashtable<String, String> sid2secondary = new Hashtable<String, String>();
     private String redirfile;
@@ -39,9 +44,10 @@ public class RedirManager {
     /**
      * Create a mechanism for maintaining subscription redirections.
      *
-     * @param redirfile   The file to store the redirection information.
-     * @param mininterval The minimum number of milliseconds between writes to the redirection information file.
-     * @param timer       The timer thread used to run delayed file writes.
+     * @param redirfile The file to store the redirection information.
+     * @param mininterval The minimum number of milliseconds between writes to the redirection
+     * information file.
+     * @param timer The timer thread used to run delayed file writes.
      */
     public RedirManager(String redirfile, long mininterval, Timer timer) {
         this.redirfile = redirfile;
@@ -50,38 +56,40 @@ public class RedirManager {
                 try {
                     StringBuffer sb = new StringBuffer();
                     for (String s : sid2primary.keySet()) {
-                        sb.append(s).append(' ').append(sid2primary.get(s)).append(' ').append(sid2secondary.get(s)).append('\n');
+                        sb.append(s).append(' ').append(sid2primary.get(s)).append(' ')
+                            .append(sid2secondary.get(s)).append('\n');
+                    }
+                    try (OutputStream os = new FileOutputStream(RedirManager.this.redirfile)) {
+                        os.write(sb.toString().getBytes());
                     }
-                    OutputStream os = new FileOutputStream(RedirManager.this.redirfile);
-                    os.write(sb.toString().getBytes());
-                    os.close();
                 } catch (Exception e) {
                 }
             }
         };
         try {
             String s;
-            BufferedReader br = new BufferedReader(new FileReader(redirfile));
-            while ((s = br.readLine()) != null) {
-                s = s.trim();
-                String[] sx = s.split(" ");
-                if (s.startsWith("#") || sx.length != 3) {
-                    continue;
+            try (BufferedReader br = new BufferedReader(new FileReader(redirfile))) {
+                while ((s = br.readLine()) != null) {
+                    s = s.trim();
+                    String[] sx = s.split(" ");
+                    if (s.startsWith("#") || sx.length != 3) {
+                        continue;
+                    }
+                    sid2primary.put(sx[0], sx[1]);
+                    sid2secondary.put(sx[0], sx[2]);
                 }
-                sid2primary.put(sx[0], sx[1]);
-                sid2secondary.put(sx[0], sx[2]);
             }
-            br.close();
         } catch (Exception e) {
             // missing file is normal
         }
     }
 
     /**
-     * Set up redirection.  If a request is to be sent to subscription ID sid, and that is configured to go to URL primary, instead, go to secondary.
+     * Set up redirection.  If a request is to be sent to subscription ID sid, and that is
+     * configured to go to URL primary, instead, go to secondary.
      *
-     * @param sid       The subscription ID to be redirected
-     * @param primary   The URL associated with that subscription ID
+     * @param sid The subscription ID to be redirected
+     * @param primary The URL associated with that subscription ID
      * @param secondary The replacement URL to use instead
      */
     public synchronized void redirect(String sid, String primary, String secondary) {
@@ -91,9 +99,10 @@ public class RedirManager {
     }
 
     /**
-     * Cancel redirection.  If a request is to be sent to subscription ID sid, send it to its primary URL.
+     * Cancel redirection.  If a request is to be sent to subscription ID sid, send it to its
+     * primary URL.
      *
-     * @param    sid    The subscription ID to remove from the table.
+     * @param sid The subscription ID to remove from the table.
      */
     public synchronized void forget(String sid) {
         sid2primary.remove(sid);
@@ -102,10 +111,11 @@ public class RedirManager {
     }
 
     /**
-     * Look up where to send a subscription.  If the primary has changed or there is no redirection, use the primary.  Otherwise, redirect to the secondary URL.
+     * Look up where to send a subscription.  If the primary has changed or there is no redirection,
+     * use the primary.  Otherwise, redirect to the secondary URL.
      *
-     * @param    sid    The subscription ID to look up.
-     * @param    primary    The configured primary URL.
+     * @param sid The subscription ID to look up.
+     * @param primary The configured primary URL.
      * @return The destination URL to really use.
      */
     public synchronized String lookup(String sid, String primary) {