datarouter-prov/src/main/java/org/onap/dmaap/datarouter/provisioning/InternalServlet.java

   1 /*******************************************************************************
   2  * ============LICENSE_START==================================================
   3  * * org.onap.dmaap
   4  * * ===========================================================================
   5  * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
   6  * * ===========================================================================
   7  * * Licensed under the Apache License, Version 2.0 (the "License");
   8  * * you may not use this file except in compliance with the License.
   9  * * You may obtain a copy of the License at
  10  * *
  11  *  *      http://www.apache.org/licenses/LICENSE-2.0
  12  * *
  13  *  * Unless required by applicable law or agreed to in writing, software
  14  * * distributed under the License is distributed on an "AS IS" BASIS,
  15  * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * * See the License for the specific language governing permissions and
  17  * * limitations under the License.
  18  * * ============LICENSE_END====================================================
  19  * *
  20  * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  21  * *
  22  ******************************************************************************/
  23
  24
  25 package org.onap.dmaap.datarouter.provisioning;
  26
  27 import java.io.ByteArrayOutputStream;
  28 import java.io.File;
  29 import java.io.IOException;
  30 import java.io.InputStream;
  31 import java.nio.file.FileStore;
  32 import java.nio.file.FileSystem;
  33 import java.nio.file.Files;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 import java.nio.file.StandardCopyOption;
  37 import java.util.Properties;
  38
  39 import javax.servlet.http.HttpServletRequest;
  40 import javax.servlet.http.HttpServletResponse;
  41
  42 import org.json.JSONArray;
  43 import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
  44 import org.onap.dmaap.datarouter.provisioning.beans.LogRecord;
  45 import org.onap.dmaap.datarouter.provisioning.beans.Parameters;
  46 import org.onap.dmaap.datarouter.provisioning.eelf.EelfMsgs;
  47 import org.onap.dmaap.datarouter.provisioning.utils.DB;
  48 import org.onap.dmaap.datarouter.provisioning.utils.LogfileLoader;
  49 import org.onap.dmaap.datarouter.provisioning.utils.RLEBitSet;
  50
  51 import com.att.eelf.configuration.EELFLogger;
  52 import com.att.eelf.configuration.EELFManager;
  53
  54 import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
  55
  56 /**
  57  * <p>
  58  * This servlet handles requests to URLs under /internal on the provisioning server. These include:
  59  * </p>
  60  * <div class="contentContainer">
  61  * <table class="packageSummary" border="0" cellpadding="3" cellspacing="0">
  62  * <caption><span>URL Path Summary</span><span class="tabEnd">&nbsp;</span></caption>
  63  * <tr>
  64  * <th class="colFirst" width="15%">URL Path</th>
  65  * <th class="colOne">Method</th>
  66  * <th class="colLast">Purpose</th>
  67  * </tr>
  68  * <tr class="altColor">
  69  * <td class="colFirst">/internal/prov</td>
  70  * <td class="colOne">GET</td>
  71  * <td class="colLast">used to GET a full JSON copy of the provisioning data.</td>
  72  * </tr>
  73  * <tr class="rowColor">
  74  * <td class="colFirst">/internal/fetchProv</td>
  75  * <td class="colOne">GET</td>
  76  * <td class="colLast">used to signal to a standby POD that the provisioning data should be fetched from the active
  77  * POD.</td>
  78  * </tr>
  79  * <tr class="altColor">
  80  * <td class="colFirst" rowspan="2">/internal/logs</td>
  81  * <td class="colOne">GET</td>
  82  * <td class="colLast">used to GET an index of log files and individual logs for this provisioning server.</td>
  83  * </tr>
  84  * <tr class="altColor">
  85  * <td class="colOne">POST</td>
  86  * <td class="colLast">used to POST log files from the individual nodes to this provisioning server.</td>
  87  * </tr>
  88  * <tr class="rowColor">
  89  * <td class="colFirst" rowspan="4">/internal/api</td>
  90  * <td class="colOne">GET</td>
  91  * <td class="colLast">used to GET an individual parameter value. The parameter name is specified by the path after
  92  * /api/.</td>
  93  * </tr>
  94  * <tr class="rowColor">
  95  * <td class="colOne">PUT</td>
  96  * <td class="colLast">used to set an individual parameter value. The parameter name is specified by the path after
  97  * /api/.</td>
  98  * </tr>
  99  * <tr class="rowColor">
 100  * <td class="colOne">DELETE</td>
 101  * <td class="colLast">used to remove an individual parameter value. The parameter name is specified by the path after
 102  * /api/.</td>
 103  * </tr>
 104  * <tr class="rowColor">
 105  * <td class="colOne">POST</td>
 106  * <td class="colLast">used to create a new individual parameter value. The parameter name is specified by the path
 107  * after /api/.</td>
 108  * </tr>
 109  * <tr class="altColor">
 110  * <td class="colFirst">/internal/halt</td>
 111  * <td class="colOne">GET</td>
 112  * <td class="colLast">used to halt the server (must be accessed from 127.0.0.1).</td>
 113  * </tr>
 114  * <tr class="rowColor">
 115  * <td class="colFirst" rowspan="2">/internal/drlogs</td>
 116  * <td class="colOne">GET</td>
 117  * <td class="colLast">used to get a list of DR log entries available for retrieval.
 118  * Note: these are the actual data router log entries sent to the provisioning server by the nodes, not the provisioning
 119  * server's internal logs (access via /internal/logs above). The range is returned as a list of record sequence
 120  * numbers.</td>
 121  * </tr>
 122  * <tr class="rowColor">
 123  * <td class="colOne">POST</td>
 124  * <td class="colLast">used to retrieve specific log entries.
 125  * The sequence numbers of the records to fetch are POST-ed; the records matching the sequence numbers are
 126  * returned.</td>
 127  * </tr>
 128  * <tr class="altColor">
 129  * <td class="colFirst">/internal/route/*</td>
 130  * <td class="colOne">*</td>
 131  * <td class="colLast">URLs under this path are handled via the {@link org.onap.dmaap.datarouter.provisioning.RouteServlet}</td>
 132  * </tr>
 133  * </table>
 134  * </div>
 135  * <p>
 136  * Authorization to use these URLs is a little different than for other URLs on the provisioning server. For the most
 137  * part, the IP address that the request comes from should be either:
 138  * </p>
 139  * <ol>
 140  * <li>an IP address of a provisioning server, or</li>
 141  * <li>the IP address of a node (to allow access to /internal/prov), or</li>
 142  * <li>an IP address from the "<i>special subnet</i>" which is configured with
 143  * the PROV_SPECIAL_SUBNET parameter.
 144  * </ol>
 145  * <p>
 146  * In addition, requests to /internal/halt can ONLY come from localhost (127.0.0.1) on the HTTP port.
 147  * </p>
 148  * <p>
 149  * All DELETE/GET/PUT/POST requests made to /internal/api on this servlet on the standby server are proxied to the
 150  * active server (using the {@link ProxyServlet}) if it is up and reachable.
 151  * </p>
 152  *
 153  * @author Robert Eby
 154  * @version $Id: InternalServlet.java,v 1.23 2014/03/24 18:47:10 eby Exp $
 155  */
 156 @SuppressWarnings("serial")
 157 public class InternalServlet extends ProxyServlet {
 158
 159     private static final Object lock = new Object();
 160     private static Integer logseq = 0; // another piece of info to make log spool file names unique
 161     //Adding EELF Logger Rally:US664892
 162     private static EELFLogger eelflogger = EELFManager.getInstance()
 163         .getLogger(InternalServlet.class);
 164
 165     /**
 166      * Delete a parameter at the address /internal/api/&lt;parameter&gt;. See the <b>Internal API</b> document for
 167      * details on how this method should be invoked.
 168      */
 169     @Override
 170     public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
 171         setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);
 172         eelflogger.info(EelfMsgs.ENTRY);
 173         try {
 174             eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 175             EventLogRecord elr = new EventLogRecord(req);
 176             if (!isAuthorizedForInternal(req)) {
 177                 elr.setMessage("Unauthorized.");
 178                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 179                 eventlogger.info(elr);
 180                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, "Unauthorized.", eventlogger);
 181                 return;
 182             }
 183
 184             String path = req.getPathInfo();
 185             if (path.startsWith("/api/")) {
 186                 if (isProxyOK(req) && isProxyServer()) {
 187                     super.doDelete(req, resp);
 188                     return;
 189                 }
 190                 String key = path.substring(5);
 191                 if (key.length() > 0) {
 192                     Parameters param = Parameters.getParameter(key);
 193                     if (param != null) {
 194                         if (doDelete(param)) {
 195                             elr.setResult(HttpServletResponse.SC_OK);
 196                             eventlogger.info(elr);
 197                             resp.setStatus(HttpServletResponse.SC_OK);
 198                             provisioningDataChanged();
 199                             provisioningParametersChanged();
 200                         } else {
 201                             // Something went wrong with the DELETE
 202                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 203                             eventlogger.info(elr);
 204                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 205                         }
 206                         return;
 207                     }
 208                 }
 209             }
 210             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, "Bad URL.", eventlogger);
 211         } finally {
 212             eelflogger.info(EelfMsgs.EXIT);
 213         }
 214     }
 215
 216     /**
 217      * Get some information (such as a parameter) underneath the /internal/ namespace. See the <b>Internal API</b>
 218      * document for details on how this method should be invoked.
 219      */
 220     @Override
 221     public void doGet(HttpServletRequest req, HttpServletResponse resp) {
 222         setIpFqdnRequestIDandInvocationIDForEelf("doGet",req);
 223         eelflogger.info(EelfMsgs.ENTRY);
 224         try {
 225             eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 226             String path = req.getPathInfo();
 227             Properties props = (new DB()).getProperties();
 228             if (path.equals("/halt") && !req.isSecure()) {
 229                 // request to halt the server - can ONLY come from localhost
 230                 String remote = req.getRemoteAddr();
 231                 if (remote.equals(props.getProperty("org.onap.dmaap.datarouter.provserver.localhost"))) {
 232                     intlogger.info("PROV0009 Request to HALT received.");
 233                     resp.setStatus(HttpServletResponse.SC_OK);
 234                     Main.shutdown();
 235                 } else {
 236                     intlogger.info("PROV0010 Disallowed request to HALT received from " + remote);
 237                     resp.setStatus(HttpServletResponse.SC_FORBIDDEN);
 238                 }
 239                 return;
 240             }
 241
 242             EventLogRecord elr = new EventLogRecord(req);
 243             if (!isAuthorizedForInternal(req)) {
 244                 elr.setMessage("Unauthorized.");
 245                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 246                 eventlogger.info(elr);
 247                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, "Unauthorized.", eventlogger);
 248                 return;
 249             }
 250             if (path.equals("/fetchProv") && !req.isSecure()) {
 251                 // if request came from active_pod or standby_pod and it is not us, reload prov data
 252                 SynchronizerTask s = SynchronizerTask.getSynchronizer();
 253                 s.doFetch();
 254                 resp.setStatus(HttpServletResponse.SC_OK);
 255                 return;
 256             }
 257             if (path.equals("/prov")) {
 258                 if (isProxyOK(req) && isProxyServer()) {
 259                     if (super.doGetWithFallback(req, resp)) {
 260                         return;
 261                     }
 262                     // fall back to returning the local data if the remote is unreachable
 263                     intlogger.info("Active server unavailable; falling back to local copy.");
 264                 }
 265                 Poker p = Poker.getPoker();
 266                 resp.setStatus(HttpServletResponse.SC_OK);
 267                 resp.setContentType(PROVFULL_CONTENT_TYPE2);
 268                 try {
 269                     resp.getOutputStream().print(p.getProvisioningString());
 270                 } catch (IOException ioe) {
 271                     intlogger.error("IOException" + ioe.getMessage());
 272                 }
 273                 return;
 274             }
 275             if (path.equals("/logs") || path.equals("/logs/")) {
 276                 resp.setStatus(HttpServletResponse.SC_OK);
 277                 resp.setContentType("application/json");
 278                 try {
 279                     resp.getOutputStream().print(generateLogfileList().toString());
 280                 } catch (IOException ioe) {
 281                     intlogger.error("IOException" + ioe.getMessage());
 282                 }
 283                 return;
 284             }
 285             if (path.startsWith("/logs/")) {
 286                 String logdir = props.getProperty("org.onap.dmaap.datarouter.provserver.accesslog.dir");
 287                 String logfile = path.substring(6);
 288                 if (logdir != null && logfile != null && logfile.indexOf('/') < 0) {
 289                     File log = new File(logdir + "/" + logfile);
 290                     if (log.exists() && log.isFile()) {
 291                         resp.setStatus(HttpServletResponse.SC_OK);
 292                         resp.setContentType("text/plain");
 293                         Path logpath = Paths.get(log.getAbsolutePath());
 294                         try {
 295                             Files.copy(logpath, resp.getOutputStream());
 296                         } catch (IOException ioe) {
 297                             intlogger.error("IOException" + ioe.getMessage());
 298                         }
 299                         return;
 300                     }
 301                 }
 302                 sendResponseError(resp, HttpServletResponse.SC_NO_CONTENT, "No file.", eventlogger);
 303                 return;
 304             }
 305             if (path.startsWith("/api/")) {
 306                 if (isProxyOK(req) && isProxyServer()) {
 307                     super.doGet(req, resp);
 308                     return;
 309                 }
 310                 String key = path.substring(5);
 311                 if (key.length() > 0) {
 312                     Parameters param = Parameters.getParameter(key);
 313                     if (param != null) {
 314                         resp.setStatus(HttpServletResponse.SC_OK);
 315                         resp.setContentType("text/plain");
 316                         try {
 317                             resp.getOutputStream().print(param.getValue() + "\n");
 318                         } catch (IOException ioe) {
 319                             intlogger.error("IOException" + ioe.getMessage());
 320                         }
 321                         return;
 322                     }
 323                 }
 324             }
 325             if (path.equals("/drlogs") || path.equals("/drlogs/")) {
 326                 // Special POD <=> POD API to determine what log file records are loaded here
 327                 LogfileLoader lfl = LogfileLoader.getLoader();
 328                 resp.setStatus(HttpServletResponse.SC_OK);
 329                 resp.setContentType("text/plain");
 330                 try {
 331                     resp.getOutputStream().print(lfl.getBitSet().toString());
 332                 } catch (IOException ioe) {
 333                     intlogger.error("IOException" + ioe.getMessage());
 334                 }
 335                 return;
 336             }
 337             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, "Bad URL.", eventlogger);
 338         } finally {
 339             eelflogger.info(EelfMsgs.EXIT);
 340         }
 341     }
 342
 343     /**
 344      * Modify a parameter at the address /internal/api/&lt;parameter&gt;. See the <b>Internal API</b> document for
 345      * details on how this method should be invoked.
 346      */
 347     @Override
 348     public void doPut(HttpServletRequest req, HttpServletResponse resp) {
 349         setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);
 350         eelflogger.info(EelfMsgs.ENTRY);
 351         try {
 352             eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 353             EventLogRecord elr = new EventLogRecord(req);
 354             if (!isAuthorizedForInternal(req)) {
 355                 elr.setMessage("Unauthorized.");
 356                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 357                 eventlogger.info(elr);
 358                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, "Unauthorized.", eventlogger);
 359                 return;
 360             }
 361             String path = req.getPathInfo();
 362             if (path.startsWith("/api/")) {
 363                 if (isProxyOK(req) && isProxyServer()) {
 364                     super.doPut(req, resp);
 365                     return;
 366                 }
 367                 String key = path.substring(5);
 368                 if (key.length() > 0) {
 369                     Parameters param = Parameters.getParameter(key);
 370                     if (param != null) {
 371                         String t = catValues(req.getParameterValues("val"));
 372                         param.setValue(t);
 373                         if (doUpdate(param)) {
 374                             elr.setResult(HttpServletResponse.SC_OK);
 375                             eventlogger.info(elr);
 376                             resp.setStatus(HttpServletResponse.SC_OK);
 377                             provisioningDataChanged();
 378                             provisioningParametersChanged();
 379                         } else {
 380                             // Something went wrong with the UPDATE
 381                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 382                             eventlogger.info(elr);
 383                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 384                         }
 385                         return;
 386                     }
 387                 }
 388             }
 389             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, "Bad URL.", eventlogger);
 390         } finally {
 391             eelflogger.info(EelfMsgs.EXIT);
 392         }
 393     }
 394
 395     /**
 396      * Create some new information (such as a parameter or log entries) underneath the /internal/ namespace. See the
 397      * <b>Internal API</b> document for details on how this method should be invoked.
 398      */
 399     @SuppressWarnings("resource")
 400     @Override
 401     public void doPost(HttpServletRequest req, HttpServletResponse resp) {
 402         setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);
 403         eelflogger.info(EelfMsgs.ENTRY);
 404         try {
 405             eelflogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
 406             EventLogRecord elr = new EventLogRecord(req);
 407             if (!isAuthorizedForInternal(req)) {
 408                 elr.setMessage("Unauthorized.");
 409                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 410                 eventlogger.info(elr);
 411                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, "Unauthorized.", eventlogger);
 412                 return;
 413             }
 414
 415             String path = req.getPathInfo();
 416             if (path.startsWith("/api/")) {
 417                 if (isProxyOK(req) && isProxyServer()) {
 418                     super.doPost(req, resp);
 419                     return;
 420                 }
 421                 String key = path.substring(5);
 422                 if (key.length() > 0) {
 423                     Parameters param = Parameters.getParameter(key);
 424                     if (param == null) {
 425                         String t = catValues(req.getParameterValues("val"));
 426                         param = new Parameters(key, t);
 427                         if (doInsert(param)) {
 428                             elr.setResult(HttpServletResponse.SC_OK);
 429                             eventlogger.info(elr);
 430                             resp.setStatus(HttpServletResponse.SC_OK);
 431                             provisioningDataChanged();
 432                             provisioningParametersChanged();
 433                         } else {
 434                             // Something went wrong with the INSERT
 435                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 436                             eventlogger.info(elr);
 437                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 438                         }
 439                         return;
 440                     }
 441                 }
 442             }
 443
 444             if (path.equals("/logs") || path.equals("/logs/")) {
 445                 String ctype = req.getHeader("Content-Type");
 446                 if (ctype == null || !ctype.equals("text/plain")) {
 447                     elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 448                     elr.setMessage("Bad media type: " + ctype);
 449                     resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 450                     eventlogger.info(elr);
 451                     return;
 452                 }
 453                 String spooldir = (new DB()).getProperties().getProperty("org.onap.dmaap.datarouter.provserver.spooldir");
 454                 String spoolname = String.format("%d-%d-", System.currentTimeMillis(), Thread.currentThread().getId());
 455                 synchronized (lock) {
 456                     // perhaps unnecessary, but it helps make the name unique
 457                     spoolname += logseq.toString();
 458                     logseq++;
 459                 }
 460                 String encoding = req.getHeader("Content-Encoding");
 461                 if (encoding != null) {
 462                     if (encoding.trim().equals("gzip")) {
 463                         spoolname += ".gz";
 464                     } else {
 465                         elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 466                         resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 467                         eventlogger.info(elr);
 468                         return;
 469                     }
 470                 }
 471                 // Determine space available -- available space must be at least 5%
 472                 FileSystem fs = (Paths.get(spooldir)).getFileSystem();
 473                 long total = 0;
 474                 long avail = 0;
 475                 for (FileStore store : fs.getFileStores()) {
 476                     try {
 477                         total += store.getTotalSpace();
 478                         avail += store.getUsableSpace();
 479                     } catch (IOException ioe) {
 480                         intlogger.error("IOException" + ioe.getMessage());
 481                     }
 482                 }
 483                 try {
 484                     fs.close();
 485                 } catch (Exception e) {
 486                 }
 487                 if (((avail * 100) / total) < 5) {
 488                     elr.setResult(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
 489                     resp.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
 490                     eventlogger.info(elr);
 491                     return;
 492                 }
 493                 Path tmppath = Paths.get(spooldir, spoolname);
 494                 Path donepath = Paths.get(spooldir, "IN." + spoolname);
 495                 try {
 496                     Files.copy(req.getInputStream(), Paths.get(spooldir, spoolname), StandardCopyOption.REPLACE_EXISTING);
 497                     Files.move(tmppath, donepath, StandardCopyOption.REPLACE_EXISTING);
 498                     elr.setResult(HttpServletResponse.SC_CREATED);
 499                     resp.setStatus(HttpServletResponse.SC_CREATED);
 500                     eventlogger.info(elr);
 501                     LogfileLoader.getLoader();    // This starts the logfile loader "task"
 502                 } catch (IOException ioe) {
 503                     intlogger.error("IOException" + ioe.getMessage());
 504                 }
 505                 return;
 506             }
 507
 508             if (path.equals("/drlogs") || path.equals("/drlogs/")) {
 509                 // Receive post request and generate log entries
 510                 String ctype = req.getHeader("Content-Type");
 511                 if (ctype == null || !ctype.equals("text/plain")) {
 512                     elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 513                     elr.setMessage("Bad media type: " + ctype);
 514                     resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 515                     eventlogger.info(elr);
 516                     return;
 517                 }
 518                 try {
 519                     InputStream is = req.getInputStream();
 520                     ByteArrayOutputStream bos = new ByteArrayOutputStream();
 521                     int ch;
 522                     while ((ch = is.read()) >= 0) {
 523                         bos.write(ch);
 524                     }
 525                     RLEBitSet bs = new RLEBitSet(bos.toString());    // The set of records to retrieve
 526                     elr.setResult(HttpServletResponse.SC_OK);
 527                     resp.setStatus(HttpServletResponse.SC_OK);
 528                     resp.setContentType("text/plain");
 529                     LogRecord.printLogRecords(resp.getOutputStream(), bs);
 530                     eventlogger.info(elr);
 531                 } catch (IOException ioe) {
 532                     intlogger.error("IOException" + ioe.getMessage());
 533                 }
 534                 return;
 535             }
 536
 537             elr.setResult(HttpServletResponse.SC_NOT_FOUND);
 538             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, "Bad URL.", eventlogger);
 539             eventlogger.info(elr);
 540         } finally {
 541             eelflogger.info(EelfMsgs.EXIT);
 542         }
 543     }
 544
 545     private String catValues(String[] v) {
 546         StringBuilder sb = new StringBuilder();
 547         if (v != null) {
 548             String pfx = "";
 549             for (String s : v) {
 550                 sb.append(pfx);
 551                 sb.append(s);
 552                 pfx = "|";
 553             }
 554         }
 555         return sb.toString();
 556     }
 557
 558     private JSONArray generateLogfileList() {
 559         JSONArray ja = new JSONArray();
 560         Properties p = (new DB()).getProperties();
 561         String s = p.getProperty("org.onap.dmaap.datarouter.provserver.accesslog.dir");
 562         if (s != null) {
 563             String[] dirs = s.split(",");
 564             for (String dir : dirs) {
 565                 File f = new File(dir);
 566                 String[] list = f.list();
 567                 if (list != null) {
 568                     for (String s2 : list) {
 569                         if (!s2.startsWith(".")) {
 570                             ja.put(s2);
 571                         }
 572                     }
 573                 }
 574             }
 575         }
 576         return ja;
 577     }
 578 }