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
 160     private static final Object lock = new Object();
 161     private static Integer logseq = 0; // another piece of info to make log spool file names unique
 162     //Adding EELF Logger Rally:US664892
 163     private static EELFLogger eelfLogger = EELFManager.getInstance()
 164         .getLogger(InternalServlet.class);
 165
 166     /**
 167      * Delete a parameter at the address /internal/api/&lt;parameter&gt;. See the <b>Internal API</b> document for
 168      * details on how this method should be invoked.
 169      */
 170     @Override
 171     public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
 172         setIpFqdnRequestIDandInvocationIDForEelf("doDelete", req);
 173         eelfLogger.info(EelfMsgs.ENTRY);
 174         try {
 175             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 176             EventLogRecord elr = new EventLogRecord(req);
 177             if (!isAuthorizedForInternal(req)) {
 178                 elr.setMessage(UNAUTHORIZED);
 179                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 180                 eventlogger.error(elr.toString());
 181                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, UNAUTHORIZED, eventlogger);
 182                 return;
 183             }
 184
 185             String path = req.getPathInfo();
 186             if (path.startsWith(API)) {
 187                 if (isProxyOK(req) && isProxyServer()) {
 188                     super.doDelete(req, resp);
 189                     return;
 190                 }
 191                 String key = path.substring(5);
 192                 if (key.length() > 0) {
 193                     Parameters param = Parameters.getParameter(key);
 194                     if (param != null) {
 195                         if (doDelete(param)) {
 196                             elr.setResult(HttpServletResponse.SC_OK);
 197                             eventlogger.info(elr.toString());
 198                             resp.setStatus(HttpServletResponse.SC_OK);
 199                             provisioningDataChanged();
 200                             provisioningParametersChanged();
 201                         } else {
 202                             // Something went wrong with the DELETE
 203                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 204                             eventlogger.error(elr.toString());
 205                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 206                         }
 207                         return;
 208                     }
 209                 }
 210             }
 211             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, BAD_URL, eventlogger);
 212         } finally {
 213             eelfLogger.info(EelfMsgs.EXIT);
 214         }
 215     }
 216
 217     /**
 218      * Get some information (such as a parameter) underneath the /internal/ namespace. See the <b>Internal API</b>
 219      * document for details on how this method should be invoked.
 220      */
 221     @Override
 222     public void doGet(HttpServletRequest req, HttpServletResponse resp) {
 223         setIpFqdnRequestIDandInvocationIDForEelf("doGet",req);
 224         eelfLogger.info(EelfMsgs.ENTRY);
 225         try {
 226             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 227             String path = req.getPathInfo();
 228             Properties props = (new DB()).getProperties();
 229             if ("/halt".equals(path) && !req.isSecure()) {
 230                 // request to halt the server - can ONLY come from localhost
 231                 String remote = req.getRemoteAddr();
 232                 if (remote.equals(props.getProperty("org.onap.dmaap.datarouter.provserver.localhost"))) {
 233                     intlogger.info("PROV0009 Request to HALT received.");
 234                     resp.setStatus(HttpServletResponse.SC_OK);
 235                     Main.shutdown();
 236                 } else {
 237                     intlogger.info("PROV0010 Disallowed request to HALT received from " + remote);
 238                     resp.setStatus(HttpServletResponse.SC_FORBIDDEN);
 239                 }
 240                 return;
 241             }
 242
 243             EventLogRecord elr = new EventLogRecord(req);
 244             if (!isAuthorizedForInternal(req)) {
 245                 elr.setMessage(UNAUTHORIZED);
 246                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 247                 eventlogger.error(elr.toString());
 248                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, UNAUTHORIZED, eventlogger);
 249                 return;
 250             }
 251             if ("/fetchProv".equals(path) && !req.isSecure()) {
 252                 // if request came from active_pod or standby_pod and it is not us, reload prov data
 253                 SynchronizerTask s = SynchronizerTask.getSynchronizer();
 254                 s.doFetch();
 255                 resp.setStatus(HttpServletResponse.SC_OK);
 256                 return;
 257             }
 258             if ("/prov".equals(path)) {
 259                 if (isProxyOK(req) && isProxyServer()) {
 260                     if (super.doGetWithFallback(req, resp)) {
 261                         return;
 262                     }
 263                     // fall back to returning the local data if the remote is unreachable
 264                     intlogger.info("Active server unavailable; falling back to local copy.");
 265                 }
 266                 Poker p = Poker.getPoker();
 267                 resp.setStatus(HttpServletResponse.SC_OK);
 268                 resp.setContentType(PROVFULL_CONTENT_TYPE2);
 269                 try {
 270                     resp.getOutputStream().print(p.getProvisioningString());
 271                 } catch (IOException ioe) {
 272                     intlogger.error("PROV0131 InternalServlet.doGet: " + ioe.getMessage(), ioe);
 273                 }
 274                 return;
 275             }
 276             if ("/logs".equals(path) || LOGS.equals(path)) {
 277                 resp.setStatus(HttpServletResponse.SC_OK);
 278                 resp.setContentType("application/json");
 279                 try {
 280                     resp.getOutputStream().print(generateLogfileList().toString());
 281                 } catch (IOException ioe) {
 282                     intlogger.error("PROV0132 InternalServlet.doGet: " + ioe.getMessage(), ioe);
 283                 }
 284                 return;
 285             }
 286             if (path.startsWith(LOGS)) {
 287                 String logdir = props.getProperty("org.onap.dmaap.datarouter.provserver.accesslog.dir");
 288                 String logfile = path.substring(6);
 289                 if (logdir != null && logfile != null && logfile.indexOf('/') < 0) {
 290                     File log = new File(logdir + "/" + logfile);
 291                     if (log.exists() && log.isFile()) {
 292                         resp.setStatus(HttpServletResponse.SC_OK);
 293                         resp.setContentType(TEXT_CT);
 294                         Path logpath = Paths.get(log.getAbsolutePath());
 295                         try {
 296                             Files.copy(logpath, resp.getOutputStream());
 297                         } catch (IOException ioe) {
 298                             intlogger.error("PROV0133 InternalServlet.doGet: " + ioe.getMessage(), ioe);
 299                         }
 300                         return;
 301                     }
 302                 }
 303                 sendResponseError(resp, HttpServletResponse.SC_NO_CONTENT, "No file.", eventlogger);
 304                 return;
 305             }
 306             if (path.startsWith(API)) {
 307                 if (isProxyOK(req) && isProxyServer()) {
 308                     super.doGet(req, resp);
 309                     return;
 310                 }
 311                 String key = path.substring(5);
 312                 if (key.length() > 0) {
 313                     Parameters param = Parameters.getParameter(key);
 314                     if (param != null) {
 315                         resp.setStatus(HttpServletResponse.SC_OK);
 316                         resp.setContentType(TEXT_CT);
 317                         try {
 318                             resp.getOutputStream().print(param.getValue() + "\n");
 319                         } catch (IOException ioe) {
 320                             intlogger.error("PROV0134 InternalServlet.doGet: " + ioe.getMessage(), ioe);
 321                         }
 322                         return;
 323                     }
 324                 }
 325             }
 326             if ("/drlogs".equals(path) || "/drlogs/".equals(path)) {
 327                 // Special POD <=> POD API to determine what log file records are loaded here
 328                 LogfileLoader lfl = LogfileLoader.getLoader();
 329                 resp.setStatus(HttpServletResponse.SC_OK);
 330                 resp.setContentType(TEXT_CT);
 331                 try {
 332                     resp.getOutputStream().print(lfl.getBitSet().toString());
 333                 } catch (IOException ioe) {
 334                     intlogger.error("PROV0135 InternalServlet.doGet: " + ioe.getMessage(), ioe);
 335                 }
 336                 return;
 337             }
 338             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, BAD_URL, eventlogger);
 339         } finally {
 340             eelfLogger.info(EelfMsgs.EXIT);
 341         }
 342     }
 343
 344     /**
 345      * Modify a parameter at the address /internal/api/&lt;parameter&gt;. See the <b>Internal API</b> document for
 346      * details on how this method should be invoked.
 347      */
 348     @Override
 349     public void doPut(HttpServletRequest req, HttpServletResponse resp) {
 350         setIpFqdnRequestIDandInvocationIDForEelf("doPut", req);
 351         eelfLogger.info(EelfMsgs.ENTRY);
 352         try {
 353             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF_AND_FEEDID, req.getHeader(BEHALF_HEADER), getIdFromPath(req) + "");
 354             EventLogRecord elr = new EventLogRecord(req);
 355             if (!isAuthorizedForInternal(req)) {
 356                 elr.setMessage(UNAUTHORIZED);
 357                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 358                 eventlogger.error(elr.toString());
 359                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, UNAUTHORIZED, eventlogger);
 360                 return;
 361             }
 362             String path = req.getPathInfo();
 363             if (path.startsWith(API)) {
 364                 if (isProxyOK(req) && isProxyServer()) {
 365                     super.doPut(req, resp);
 366                     return;
 367                 }
 368                 String key = path.substring(5);
 369                 if (key.length() > 0) {
 370                     Parameters param = Parameters.getParameter(key);
 371                     if (param != null) {
 372                         String t = catValues(req.getParameterValues("val"));
 373                         param.setValue(t);
 374                         if (doUpdate(param)) {
 375                             elr.setResult(HttpServletResponse.SC_OK);
 376                             eventlogger.info(elr.toString());
 377                             resp.setStatus(HttpServletResponse.SC_OK);
 378                             provisioningDataChanged();
 379                             provisioningParametersChanged();
 380                         } else {
 381                             // Something went wrong with the UPDATE
 382                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 383                             eventlogger.error(elr.toString());
 384                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 385                         }
 386                         return;
 387                     }
 388                 }
 389             }
 390             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, BAD_URL, eventlogger);
 391         } finally {
 392             eelfLogger.info(EelfMsgs.EXIT);
 393         }
 394     }
 395
 396     /**
 397      * Create some new information (such as a parameter or log entries) underneath the /internal/ namespace. See the
 398      * <b>Internal API</b> document for details on how this method should be invoked.
 399      */
 400     @SuppressWarnings("resource")
 401     @Override
 402     public void doPost(HttpServletRequest req, HttpServletResponse resp) {
 403         setIpFqdnRequestIDandInvocationIDForEelf("doPost", req);
 404         eelfLogger.info(EelfMsgs.ENTRY);
 405         try {
 406             eelfLogger.info(EelfMsgs.MESSAGE_WITH_BEHALF, req.getHeader(BEHALF_HEADER));
 407             EventLogRecord elr = new EventLogRecord(req);
 408             if (!isAuthorizedForInternal(req)) {
 409                 elr.setMessage(UNAUTHORIZED);
 410                 elr.setResult(HttpServletResponse.SC_FORBIDDEN);
 411                 eventlogger.error(elr.toString());
 412                 sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, UNAUTHORIZED, eventlogger);
 413                 return;
 414             }
 415
 416             String path = req.getPathInfo();
 417             if (path.startsWith(API)) {
 418                 if (isProxyOK(req) && isProxyServer()) {
 419                     super.doPost(req, resp);
 420                     return;
 421                 }
 422                 String key = path.substring(5);
 423                 if (key.length() > 0) {
 424                     Parameters param = Parameters.getParameter(key);
 425                     if (param == null) {
 426                         String t = catValues(req.getParameterValues("val"));
 427                         param = new Parameters(key, t);
 428                         if (doInsert(param)) {
 429                             elr.setResult(HttpServletResponse.SC_OK);
 430                             eventlogger.info(elr.toString());
 431                             resp.setStatus(HttpServletResponse.SC_OK);
 432                             provisioningDataChanged();
 433                             provisioningParametersChanged();
 434                         } else {
 435                             // Something went wrong with the INSERT
 436                             elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
 437                             eventlogger.error(elr.toString());
 438                             sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
 439                         }
 440                         return;
 441                     }
 442                 }
 443             }
 444
 445             if ("/logs".equals(path) || LOGS.equals(path)) {
 446                 String ctype = req.getHeader("Content-Type");
 447                 if (ctype == null || !TEXT_CT.equals(ctype)) {
 448                     elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 449                     elr.setMessage("Bad media type: " + ctype);
 450                     resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 451                     eventlogger.error(elr.toString());
 452                     return;
 453                 }
 454                 String spooldir = (new DB()).getProperties().getProperty("org.onap.dmaap.datarouter.provserver.spooldir");
 455                 String spoolname = String.format("%d-%d-", System.currentTimeMillis(), Thread.currentThread().getId());
 456                 synchronized (lock) {
 457                     // perhaps unnecessary, but it helps make the name unique
 458                     spoolname += logseq.toString();
 459                     logseq++;
 460                 }
 461                 String encoding = req.getHeader("Content-Encoding");
 462                 if (encoding != null) {
 463                     if ("gzip".equals(encoding.trim())) {
 464                         spoolname += ".gz";
 465                     } else {
 466                         elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 467                         resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 468                         eventlogger.error(elr.toString());
 469                         return;
 470                     }
 471                 }
 472                 // Determine space available -- available space must be at least 5%
 473                 FileSystem fs = (Paths.get(spooldir)).getFileSystem();
 474                 long total = 0;
 475                 long avail = 0;
 476                 for (FileStore store : fs.getFileStores()) {
 477                     try {
 478                         total += store.getTotalSpace();
 479                         avail += store.getUsableSpace();
 480                     } catch (IOException ioe) {
 481                         intlogger.error("PROV0136 InternalServlet.doPost: " + ioe.getMessage(), ioe);
 482                     }
 483                 }
 484                 try {
 485                     fs.close();
 486                 } catch (Exception e) {
 487                     intlogger.error("PROV0137 InternalServlet.doPost: " + e.getMessage(), e);
 488                 }
 489                 if (((avail * 100) / total) < 5) {
 490                     elr.setResult(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
 491                     resp.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
 492                     eventlogger.error(elr.toString());
 493                     return;
 494                 }
 495                 Path tmppath = Paths.get(spooldir, spoolname);
 496                 Path donepath = Paths.get(spooldir, "IN." + spoolname);
 497                 try {
 498                     Files.copy(req.getInputStream(), Paths.get(spooldir, spoolname), StandardCopyOption.REPLACE_EXISTING);
 499                     Files.move(tmppath, donepath, StandardCopyOption.REPLACE_EXISTING);
 500                     elr.setResult(HttpServletResponse.SC_CREATED);
 501                     resp.setStatus(HttpServletResponse.SC_CREATED);
 502                     eventlogger.info(elr.toString());
 503                     LogfileLoader.getLoader();    // This starts the logfile loader "task"
 504                 } catch (IOException ioe) {
 505                     intlogger.error("PROV0138 InternalServlet.doPost: " + ioe.getMessage(), ioe);
 506                 }
 507                 return;
 508             }
 509
 510             if ("/drlogs".equals(path) || "/drlogs/".equals(path)) {
 511                 // Receive post request and generate log entries
 512                 String ctype = req.getHeader("Content-Type");
 513                 if (ctype == null || !TEXT_CT.equals(ctype)) {
 514                     elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 515                     elr.setMessage("Bad media type: " + ctype);
 516                     resp.setStatus(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
 517                     eventlogger.error(elr.toString());
 518                     return;
 519                 }
 520                 try {
 521                     InputStream is = req.getInputStream();
 522                     ByteArrayOutputStream bos = new ByteArrayOutputStream();
 523                     int ch;
 524                     while ((ch = is.read()) >= 0) {
 525                         bos.write(ch);
 526                     }
 527                     RLEBitSet bs = new RLEBitSet(bos.toString());    // The set of records to retrieve
 528                     elr.setResult(HttpServletResponse.SC_OK);
 529                     resp.setStatus(HttpServletResponse.SC_OK);
 530                     resp.setContentType(TEXT_CT);
 531                     LogRecord.printLogRecords(resp.getOutputStream(), bs);
 532                     eventlogger.info(elr.toString());
 533                 } catch (IOException ioe) {
 534                     intlogger.error("PROV0139 InternalServlet.doPost: " + ioe.getMessage(), ioe);
 535                 }
 536                 return;
 537             }
 538
 539             elr.setResult(HttpServletResponse.SC_NOT_FOUND);
 540             sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, BAD_URL, eventlogger);
 541             eventlogger.error(elr.toString());
 542         } finally {
 543             eelfLogger.info(EelfMsgs.EXIT);
 544         }
 545     }
 546
 547     private String catValues(String[] v) {
 548         StringBuilder sb = new StringBuilder();
 549         if (v != null) {
 550             String pfx = "";
 551             for (String s : v) {
 552                 sb.append(pfx);
 553                 sb.append(s);
 554                 pfx = "|";
 555             }
 556         }
 557         return sb.toString();
 558     }
 559
 560     private JSONArray generateLogfileList() {
 561         JSONArray ja = new JSONArray();
 562         Properties p = (new DB()).getProperties();
 563         String s = p.getProperty("org.onap.dmaap.datarouter.provserver.accesslog.dir");
 564         if (s != null) {
 565             String[] dirs = s.split(",");
 566             for (String dir : dirs) {
 567                 File f = new File(dir);
 568                 String[] list = f.list();
 569                 if (list != null) {
 570                     for (String s2 : list) {
 571                         if (!s2.startsWith(".")) {
 572                             ja.put(s2);
 573                         }
 574                     }
 575                 }
 576             }
 577         }
 578         return ja;
 579     }
 580 }