restapi-call-node/provider/src/main/java/org/onap/ccsdk/sli/plugins/restapicall/RestapiCallNode.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : SDN-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                      reserved.
   7  * ================================================================================
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  * ============LICENSE_END=========================================================
  20  */
  21
  22 package org.onap.ccsdk.sli.plugins.restapicall;
  23
  24 import java.io.FileInputStream;
  25 import java.net.URI;
  26 import java.nio.file.Files;
  27 import java.nio.file.Paths;
  28 import java.security.KeyStore;
  29 import java.util.ArrayList;
  30 import java.util.Collections;
  31 import java.util.HashMap;
  32 import java.util.HashSet;
  33 import java.util.List;
  34 import java.util.Map;
  35 import java.util.Map.Entry;
  36 import java.util.Set;
  37
  38 import javax.net.ssl.HostnameVerifier;
  39 import javax.net.ssl.HttpsURLConnection;
  40 import javax.net.ssl.KeyManagerFactory;
  41 import javax.net.ssl.SSLContext;
  42 import javax.net.ssl.SSLSession;
  43 import javax.ws.rs.core.EntityTag;
  44 import javax.ws.rs.core.MultivaluedMap;
  45 import javax.ws.rs.core.UriBuilder;
  46
  47 import org.apache.commons.lang3.StringUtils;
  48 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  49 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
  50 import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
  51 import org.slf4j.Logger;
  52 import org.slf4j.LoggerFactory;
  53
  54 import com.sun.jersey.api.client.Client;
  55 import com.sun.jersey.api.client.ClientResponse;
  56 import com.sun.jersey.api.client.WebResource;
  57 import com.sun.jersey.api.client.config.ClientConfig;
  58 import com.sun.jersey.api.client.config.DefaultClientConfig;
  59 import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;
  60 import com.sun.jersey.client.urlconnection.HTTPSProperties;
  61
  62 public class RestapiCallNode implements SvcLogicJavaPlugin {
  63
  64         private static final Logger log = LoggerFactory.getLogger(RestapiCallNode.class);
  65
  66         private String uebServers;
  67         private String defaultUebTemplateFileName = "/opt/bvc/restapi/templates/default-ueb-message.json";
  68         protected RetryPolicyStore retryPolicyStore;
  69
  70         protected RetryPolicyStore getRetryPolicyStore() {
  71                 return retryPolicyStore;
  72         }
  73
  74         public void setRetryPolicyStore(RetryPolicyStore retryPolicyStore) {
  75                 this.retryPolicyStore = retryPolicyStore;
  76         }
  77
  78         public RestapiCallNode() {
  79
  80         }
  81
  82          /**
  83      * Allows Directed Graphs  the ability to interact with REST APIs.
  84      * @param parameters HashMap<String,String> of parameters passed by the DG to this function
  85      * <table border="1">
  86      *  <thead><th>parameter</th><th>Mandatory/Optional</th><th>description</th><th>example values</th></thead>
  87      *  <tbody>
  88      *      <tr><td>templateFileName</td><td>Optional</td><td>full path to template file that can be used to build a request</td><td>/sdncopt/bvc/restapi/templates/vnf_service-configuration-operation_minimal.json</td></tr>
  89      *      <tr><td>restapiUrl</td><td>Mandatory</td><td>url to send the request to</td><td>https://sdncodl:8543/restconf/operations/L3VNF-API:create-update-vnf-request</td></tr>
  90      *      <tr><td>restapiUser</td><td>Optional</td><td>user name to use for http basic authentication</td><td>sdnc_ws</td></tr>
  91      *      <tr><td>restapiPassword</td><td>Optional</td><td>unencrypted password to use for http basic authentication</td><td>plain_password</td></tr>
  92      *      <tr><td>contentType</td><td>Optional</td><td>http content type to set in the http header</td><td>usually application/json or application/xml</td></tr>
  93      *      <tr><td>format</td><td>Optional</td><td>should match request body format</td><td>json or xml</td></tr>
  94      *      <tr><td>httpMethod</td><td>Optional</td><td>http method to use when sending the request</td><td>get post put delete patch</td></tr>
  95      *      <tr><td>responsePrefix</td><td>Optional</td><td>location the response will be written to in context memory</td><td>tmp.restapi.result</td></tr>
  96      *      <tr><td>listName[i]</td><td>Optional</td><td>Used for processing XML responses with repeating elements.</td>vpn-information.vrf-details<td></td></tr>
  97      *      <tr><td>skipSending</td><td>Optional</td><td></td><td>true or false</td></tr>
  98      *      <tr><td>convertResponse </td><td>Optional</td><td>whether the response should be converted</td><td>true or false</td></tr>
  99      *      <tr><td>customHttpHeaders</td><td>Optional</td><td>a list additional http headers to be passed in, follow the format in the example</td><td>X-CSI-MessageId=messageId,headerFieldName=headerFieldValue</td></tr>
 100      *      <tr><td>dumpHeaders</td><td>Optional</td><td>when true writes http header content to context memory</td><td>true or false</td></tr>
 101      *      <tr><td>partner</td><td>Optional</td><td>needed for DME2 calls</td><td>dme2proxy</td></tr>
 102      *  </tbody>
 103      * </table>
 104      * @param ctx Reference to context memory
 105      * @throws SvcLogicException
 106      * @since 11.0.2
 107      * @see String#split(String, int)
 108      */
 109         public void sendRequest(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
 110                 sendRequest(paramMap, ctx, null);
 111         }
 112
 113         public void sendRequest(Map<String, String> paramMap, SvcLogicContext ctx, Integer retryCount)
 114                 throws SvcLogicException {
 115
 116                 RetryPolicy retryPolicy = null;
 117                 HttpResponse r = null;
 118                 try {
 119                         Parameters p = getParameters(paramMap);
 120                         if (p.partner != null) {
 121                                 retryPolicy = retryPolicyStore.getRetryPolicy(p.partner);
 122                         }
 123                         String pp = p.responsePrefix != null ? p.responsePrefix + '.' : "";
 124
 125                         String req = null;
 126                         if (p.templateFileName != null) {
 127                                 String reqTemplate = readFile(p.templateFileName);
 128                                 req = buildXmlJsonRequest(ctx, reqTemplate, p.format);
 129                         }
 130                         r = sendHttpRequest(req, p);
 131                         setResponseStatus(ctx, p.responsePrefix, r);
 132
 133                         if (p.dumpHeaders && r.headers != null) {
 134                 for (Entry<String, List<String>> a : r.headers.entrySet()) {
 135                     ctx.setAttribute(pp + "header." + a.getKey(), StringUtils.join(a.getValue(), ","));
 136                 }
 137             }
 138
 139                         if (r.body != null && r.body.trim().length() > 0) {
 140                                 ctx.setAttribute(pp + "httpResponse", r.body);
 141
 142                                 if (p.convertResponse) {
 143                                         Map<String, String> mm = null;
 144                                         if (p.format == Format.XML)
 145                                                 mm = XmlParser.convertToProperties(r.body, p.listNameList);
 146                                         else if (p.format == Format.JSON)
 147                                                 mm = JsonParser.convertToProperties(r.body);
 148
 149                                         if (mm != null)
 150                                                 for (String key : mm.keySet())
 151                                                         ctx.setAttribute(pp + key, mm.get(key));
 152                                 }
 153                         }
 154                 } catch (Exception e) {
 155                         boolean shouldRetry = false;
 156                         if (e.getCause() instanceof java.net.SocketException) {
 157                                 shouldRetry = true;
 158                         }
 159
 160                         log.error("Error sending the request: " + e.getMessage(), e);
 161                         String prefix = parseParam(paramMap, "responsePrefix", false, null);
 162                         if (retryPolicy == null || shouldRetry == false) {
 163                                 setFailureResponseStatus(ctx, prefix, e.getMessage(), r);
 164                         } else {
 165                                 if (retryCount == null) {
 166                                         retryCount = 0;
 167                                 }
 168                                 String retryMessage = retryCount + " attempts were made out of " + retryPolicy.getMaximumRetries() +
 169                                         " maximum retries.";
 170                                 log.debug(retryMessage);
 171                                 try {
 172                                         retryCount = retryCount + 1;
 173                                         if (retryCount < retryPolicy.getMaximumRetries() + 1) {
 174                                                 URI uri = new URI(paramMap.get("restapiUrl"));
 175                                                 String hostname = uri.getHost();
 176                                                 String retryString = retryPolicy.getNextHostName((uri.toString()));
 177                                                 URI uriTwo = new URI(retryString);
 178                                                 URI retryUri = UriBuilder.fromUri(uri).host(uriTwo.getHost()).port(uriTwo.getPort()).scheme(
 179                                                         uriTwo.getScheme()).build();
 180                                                 paramMap.put("restapiUrl", retryUri.toString());
 181                                                 log.debug("URL was set to " + retryUri.toString());
 182                                                 log.debug("Failed to communicate with host " + hostname +
 183                                                         ". Request will be re-attempted using the host " + retryString + ".");
 184                                                 log.debug("This is retry attempt " + retryCount + " out of " + retryPolicy.getMaximumRetries());
 185                                                 sendRequest(paramMap, ctx, retryCount);
 186                                         } else {
 187                                                 log.debug("Maximum retries reached, calling setFailureResponseStatus.");
 188                                                 setFailureResponseStatus(ctx, prefix, e.getMessage(), r);
 189                                         }
 190                                 } catch (Exception ex) {
 191                                         log.error("Could not attempt retry.", ex);
 192                                         String retryErrorMessage =
 193                                                 "Retry attempt has failed. No further retry shall be attempted, calling setFailureResponseStatus.";
 194                                         setFailureResponseStatus(ctx, prefix, retryErrorMessage, r);
 195                                 }
 196                         }
 197                 }
 198
 199                 if (r != null && r.code >= 300)
 200                         throw new SvcLogicException(String.valueOf(r.code) + ": " + r.message);
 201         }
 202
 203         protected Parameters getParameters(Map<String, String> paramMap) throws SvcLogicException {
 204                 Parameters p = new Parameters();
 205                 p.templateFileName = parseParam(paramMap, "templateFileName", false, null);
 206                 p.restapiUrl = parseParam(paramMap, "restapiUrl", true, null);
 207                 p.restapiUser = parseParam(paramMap, "restapiUser", false, null);
 208                 p.restapiPassword = parseParam(paramMap, "restapiPassword", false, null);
 209                 p.contentType = parseParam(paramMap, "contentType", false, null);
 210                 p.format = Format.fromString(parseParam(paramMap, "format", false, "json"));
 211                 p.httpMethod = HttpMethod.fromString(parseParam(paramMap, "httpMethod", false, "post"));
 212                 p.responsePrefix = parseParam(paramMap, "responsePrefix", false, null);
 213                 p.listNameList = getListNameList(paramMap);
 214                 String skipSendingStr = paramMap.get("skipSending");
 215                 p.skipSending = skipSendingStr != null && skipSendingStr.equalsIgnoreCase("true");
 216                 p.convertResponse = Boolean.valueOf(parseParam(paramMap, "convertResponse", false, "true"));
 217                 p.trustStoreFileName = parseParam(paramMap, "trustStoreFileName", false, null);
 218                 p.trustStorePassword = parseParam(paramMap, "trustStorePassword", false, null);
 219                 p.keyStoreFileName = parseParam(paramMap, "keyStoreFileName", false, null);
 220                 p.keyStorePassword = parseParam(paramMap, "keyStorePassword", false, null);
 221                 p.ssl = p.trustStoreFileName != null && p.trustStorePassword != null && p.keyStoreFileName != null &&
 222                         p.keyStorePassword != null;
 223                 p.customHttpHeaders = parseParam(paramMap, "customHttpHeaders", false, null);
 224                 p.partner = parseParam(paramMap, "partner", false, null);
 225             p.dumpHeaders = Boolean.valueOf(parseParam(paramMap, "dumpHeaders", false, null));
 226                 return p;
 227         }
 228
 229         protected Set<String> getListNameList(Map<String, String> paramMap) {
 230                 Set<String> ll = new HashSet<String>();
 231                 for (String key : paramMap.keySet())
 232                         if (key.startsWith("listName"))
 233                                 ll.add(paramMap.get(key));
 234                 return ll;
 235         }
 236
 237         protected String parseParam(Map<String, String> paramMap, String name, boolean required, String def)
 238                 throws SvcLogicException {
 239                 String s = paramMap.get(name);
 240
 241                 if (s == null || s.trim().length() == 0) {
 242                         if (!required)
 243                                 return def;
 244                         throw new SvcLogicException("Parameter " + name + " is required in RestapiCallNode");
 245                 }
 246
 247                 s = s.trim();
 248                 String value = "";
 249                 int i = 0;
 250                 int i1 = s.indexOf('%');
 251                 while (i1 >= 0) {
 252                         int i2 = s.indexOf('%', i1 + 1);
 253                         if (i2 < 0)
 254                                 break;
 255
 256                         String varName = s.substring(i1 + 1, i2);
 257                         String varValue = System.getenv(varName);
 258                         if (varValue == null)
 259                                 varValue = "%" + varName + "%";
 260
 261                         value += s.substring(i, i1);
 262                         value += varValue;
 263
 264                         i = i2 + 1;
 265                         i1 = s.indexOf('%', i);
 266                 }
 267                 value += s.substring(i);
 268
 269                 log.info("Parameter " + name + ": [" + value + "]");
 270                 return value;
 271         }
 272
 273         protected String buildXmlJsonRequest(SvcLogicContext ctx, String template, Format format) {
 274                 log.info("Building " + format + " started");
 275                 long t1 = System.currentTimeMillis();
 276
 277                 template = expandRepeats(ctx, template, 1);
 278
 279                 Map<String, String> mm = new HashMap<>();
 280                 for (String s : ctx.getAttributeKeySet())
 281                         mm.put(s, ctx.getAttribute(s));
 282
 283                 StringBuilder ss = new StringBuilder();
 284                 int i = 0;
 285                 while (i < template.length()) {
 286                         int i1 = template.indexOf("${", i);
 287                         if (i1 < 0) {
 288                                 ss.append(template.substring(i));
 289                                 break;
 290                         }
 291
 292                         int i2 = template.indexOf('}', i1 + 2);
 293                         if (i2 < 0)
 294                                 throw new RuntimeException("Template error: Matching } not found");
 295
 296                         String var1 = template.substring(i1 + 2, i2);
 297                         String value1 = format == Format.XML ? XmlJsonUtil.getXml(mm, var1) : XmlJsonUtil.getJson(mm, var1);
 298                         // log.info(" " + var1 + ": " + value1);
 299                         if (value1 == null || value1.trim().length() == 0) {
 300                                 // delete the whole element (line)
 301                                 int i3 = template.lastIndexOf('\n', i1);
 302                                 if (i3 < 0)
 303                                         i3 = 0;
 304                                 int i4 = template.indexOf('\n', i1);
 305                                 if (i4 < 0)
 306                                         i4 = template.length();
 307
 308                                 if (i < i3)
 309                                         ss.append(template.substring(i, i3));
 310                                 i = i4;
 311                         } else {
 312                                 ss.append(template.substring(i, i1)).append(value1);
 313                                 i = i2 + 1;
 314                         }
 315                 }
 316
 317                 String req = format == Format.XML
 318                         ? XmlJsonUtil.removeEmptyStructXml(ss.toString()) : XmlJsonUtil.removeEmptyStructJson(ss.toString());
 319
 320                 if (format == Format.JSON)
 321                         req = XmlJsonUtil.removeLastCommaJson(req);
 322
 323                 long t2 = System.currentTimeMillis();
 324                 log.info("Building " + format + " completed. Time: " + (t2 - t1));
 325
 326                 return req;
 327         }
 328
 329         protected String expandRepeats(SvcLogicContext ctx, String template, int level) {
 330                 StringBuilder newTemplate = new StringBuilder();
 331                 int k = 0;
 332                 while (k < template.length()) {
 333                         int i1 = template.indexOf("${repeat:", k);
 334                         if (i1 < 0) {
 335                                 newTemplate.append(template.substring(k));
 336                                 break;
 337                         }
 338
 339                         int i2 = template.indexOf(':', i1 + 9);
 340                         if (i2 < 0)
 341                                 throw new RuntimeException(
 342                                         "Template error: Context variable name followed by : is required after repeat");
 343
 344                         // Find the closing }, store in i3
 345                         int nn = 1;
 346                         int i3 = -1;
 347                         int i = i2;
 348                         while (nn > 0 && i < template.length()) {
 349                                 i3 = template.indexOf('}', i);
 350                                 if (i3 < 0)
 351                                         throw new RuntimeException("Template error: Matching } not found");
 352                                 int i32 = template.indexOf('{', i);
 353                                 if (i32 >= 0 && i32 < i3) {
 354                                         nn++;
 355                                         i = i32 + 1;
 356                                 } else {
 357                                         nn--;
 358                                         i = i3 + 1;
 359                                 }
 360                         }
 361
 362                         String var1 = template.substring(i1 + 9, i2);
 363                         String value1 = ctx.getAttribute(var1);
 364                         log.info("     " + var1 + ": " + value1);
 365                         int n = 0;
 366                         try {
 367                                 n = Integer.parseInt(value1);
 368                         } catch (Exception e) {
 369                                 n = 0;
 370                         }
 371
 372                         newTemplate.append(template.substring(k, i1));
 373
 374                         String rpt = template.substring(i2 + 1, i3);
 375
 376                         for (int ii = 0; ii < n; ii++) {
 377                                 String ss = rpt.replaceAll("\\[\\$\\{" + level + "\\}\\]", "[" + ii + "]");
 378                                 if (ii == n - 1 && ss.trim().endsWith(",")) {
 379                                         int i4 = ss.lastIndexOf(',');
 380                                         if (i4 > 0)
 381                                                 ss = ss.substring(0, i4) + ss.substring(i4 + 1);
 382                                 }
 383                                 newTemplate.append(ss);
 384                         }
 385
 386                         k = i3 + 1;
 387                 }
 388
 389                 if (k == 0)
 390                         return newTemplate.toString();
 391
 392                 return expandRepeats(ctx, newTemplate.toString(), level + 1);
 393         }
 394
 395         protected String readFile(String fileName) throws Exception {
 396                 byte[] encoded = Files.readAllBytes(Paths.get(fileName));
 397                 return new String(encoded, "UTF-8");
 398         }
 399
 400         protected HttpResponse sendHttpRequest(String request, Parameters p) throws Exception {
 401                 ClientConfig config = new DefaultClientConfig();
 402                 SSLContext ssl = null;
 403                 if (p.ssl && p.restapiUrl.startsWith("https"))
 404                         ssl = createSSLContext(p);
 405                 if (ssl != null) {
 406                         HostnameVerifier hostnameVerifier = new HostnameVerifier() {
 407
 408                                 @Override
 409                                 public boolean verify(String hostname, SSLSession session) {
 410                                         return true;
 411                                 }
 412                         };
 413
 414                         config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
 415                                 new HTTPSProperties(hostnameVerifier, ssl));
 416                 }
 417
 418                 logProperties(config.getProperties());
 419
 420                 Client client = Client.create(config);
 421                 client.setConnectTimeout(5000);
 422                 if (p.restapiUser != null)
 423                         client.addFilter(new HTTPBasicAuthFilter(p.restapiUser, p.restapiPassword));
 424                 WebResource webResource = client.resource(p.restapiUrl);
 425
 426                 log.info("Sending request:");
 427                 log.info(request);
 428                 long t1 = System.currentTimeMillis();
 429
 430                 HttpResponse r = new HttpResponse();
 431                 r.code = 200;
 432
 433                 if (!p.skipSending) {
 434                         String tt = p.format == Format.XML ? "application/xml" : "application/json";
 435                         String tt1 = tt + ";charset=UTF-8";
 436                         if (p.contentType != null) {
 437                                 tt = p.contentType;
 438                                 tt1 = p.contentType;
 439                         }
 440
 441                         WebResource.Builder webResourceBuilder = webResource.accept(tt).type(tt1);
 442
 443             if (p.customHttpHeaders != null && p.customHttpHeaders.length() > 0) {
 444                 String[] keyValuePairs = p.customHttpHeaders.split(",");
 445                 for (String singlePair : keyValuePairs) {
 446                     int equalPosition = singlePair.indexOf('=');
 447                     webResourceBuilder.header(singlePair.substring(0, equalPosition), singlePair.substring(equalPosition + 1, singlePair.length()));
 448                 }
 449             }
 450
 451             webResourceBuilder.header("X-ECOMP-RequestID",org.slf4j.MDC.get("X-ECOMP-RequestID"));
 452
 453                         ClientResponse response = webResourceBuilder.method(p.httpMethod.toString(), ClientResponse.class, request);
 454
 455                         r.code = response.getStatus();
 456                         r.headers = response.getHeaders();
 457                         EntityTag etag = response.getEntityTag();
 458                         if (etag != null)
 459                                 r.message = etag.getValue();
 460                         if (response.hasEntity() && r.code != 204)
 461                                 r.body = response.getEntity(String.class);
 462                 }
 463
 464                 long t2 = System.currentTimeMillis();
 465                 log.info("Response received. Time: " + (t2 - t1));
 466                 log.info("HTTP response code: " + r.code);
 467                 log.info("HTTP response message: " + r.message);
 468                 logHeaders(r.headers);
 469                 log.info("HTTP response: " + r.body);
 470
 471                 return r;
 472         }
 473
 474         protected SSLContext createSSLContext(Parameters p) {
 475                 try {
 476                         System.setProperty("jsse.enableSNIExtension", "false");
 477                         System.setProperty("javax.net.ssl.trustStore", p.trustStoreFileName);
 478                         System.setProperty("javax.net.ssl.trustStorePassword", p.trustStorePassword);
 479
 480                         HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
 481
 482                                 @Override
 483                                 public boolean verify(String string, SSLSession ssls) {
 484                                         return true;
 485                                 }
 486                         });
 487
 488                         KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
 489                         FileInputStream in = new FileInputStream(p.keyStoreFileName);
 490                         KeyStore ks = KeyStore.getInstance("PKCS12");
 491                         char[] pwd = p.keyStorePassword.toCharArray();
 492                         ks.load(in, pwd);
 493                         kmf.init(ks, pwd);
 494
 495                         SSLContext ctx = SSLContext.getInstance("TLS");
 496                         ctx.init(kmf.getKeyManagers(), null, null);
 497                         return ctx;
 498                 } catch (Exception e) {
 499                         log.error("Error creating SSLContext: " + e.getMessage(), e);
 500                 }
 501                 return null;
 502         }
 503
 504         protected void setFailureResponseStatus(SvcLogicContext ctx, String prefix, String errorMessage, HttpResponse r) {
 505                 r = new HttpResponse();
 506                 r.code = 500;
 507                 r.message = errorMessage;
 508                 String pp = prefix != null ? prefix + '.' : "";
 509                 ctx.setAttribute(pp + "response-code", String.valueOf(r.code));
 510                 ctx.setAttribute(pp + "response-message", r.message);
 511         }
 512
 513         protected void setResponseStatus(SvcLogicContext ctx, String prefix, HttpResponse r) {
 514                 String pp = prefix != null ? prefix + '.' : "";
 515                 ctx.setAttribute(pp + "response-code", String.valueOf(r.code));
 516                 ctx.setAttribute(pp + "response-message", r.message);
 517         }
 518
 519         public void sendFile(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
 520                 HttpResponse r = null;
 521                 try {
 522                         FileParam p = getFileParameters(paramMap);
 523                         byte[] data = Files.readAllBytes(Paths.get(p.fileName));
 524
 525                         r = sendHttpData(data, p);
 526                         setResponseStatus(ctx, p.responsePrefix, r);
 527
 528                 } catch (Exception e) {
 529                         log.error("Error sending the request: " + e.getMessage(), e);
 530
 531                         r = new HttpResponse();
 532                         r.code = 500;
 533                         r.message = e.getMessage();
 534                         String prefix = parseParam(paramMap, "responsePrefix", false, null);
 535                         setResponseStatus(ctx, prefix, r);
 536                 }
 537
 538                 if (r != null && r.code >= 300)
 539                         throw new SvcLogicException(String.valueOf(r.code) + ": " + r.message);
 540         }
 541
 542         private static class FileParam {
 543
 544                 public String fileName;
 545                 public String url;
 546                 public String user;
 547                 public String password;
 548                 public HttpMethod httpMethod;
 549                 public String responsePrefix;
 550                 public boolean skipSending;
 551         }
 552
 553         private FileParam getFileParameters(Map<String, String> paramMap) throws SvcLogicException {
 554                 FileParam p = new FileParam();
 555                 p.fileName = parseParam(paramMap, "fileName", true, null);
 556                 p.url = parseParam(paramMap, "url", true, null);
 557                 p.user = parseParam(paramMap, "user", false, null);
 558                 p.password = parseParam(paramMap, "password", false, null);
 559                 p.httpMethod = HttpMethod.fromString(parseParam(paramMap, "httpMethod", false, "post"));
 560                 p.responsePrefix = parseParam(paramMap, "responsePrefix", false, null);
 561                 String skipSendingStr = paramMap.get("skipSending");
 562                 p.skipSending = skipSendingStr != null && skipSendingStr.equalsIgnoreCase("true");
 563                 return p;
 564         }
 565
 566         protected HttpResponse sendHttpData(byte[] data, FileParam p) {
 567                 Client client = Client.create();
 568                 client.setConnectTimeout(5000);
 569                 client.setFollowRedirects(true);
 570                 if (p.user != null)
 571                         client.addFilter(new HTTPBasicAuthFilter(p.user, p.password));
 572                 WebResource webResource = client.resource(p.url);
 573
 574                 log.info("Sending file");
 575                 long t1 = System.currentTimeMillis();
 576
 577                 HttpResponse r = new HttpResponse();
 578                 r.code = 200;
 579
 580                 if (!p.skipSending) {
 581                         String tt = "application/octet-stream";
 582
 583                         ClientResponse response = null;
 584                         if (p.httpMethod == HttpMethod.POST)
 585                                 response = webResource.accept(tt).type(tt).post(ClientResponse.class, data);
 586                         else if (p.httpMethod == HttpMethod.PUT)
 587                                 response = webResource.accept(tt).type(tt).put(ClientResponse.class, data);
 588
 589                         r.code = response.getStatus();
 590                         r.headers = response.getHeaders();
 591                         EntityTag etag = response.getEntityTag();
 592                         if (etag != null)
 593                                 r.message = etag.getValue();
 594                         if (response.hasEntity() && r.code != 204)
 595                                 r.body = response.getEntity(String.class);
 596
 597                         if (r.code == 301) {
 598                                 String newUrl = response.getHeaders().getFirst("Location");
 599
 600                                 log.info("Got response code 301. Sending same request to URL: " + newUrl);
 601
 602                                 webResource = client.resource(newUrl);
 603
 604                                 if (p.httpMethod == HttpMethod.POST)
 605                                         response = webResource.accept(tt).type(tt).post(ClientResponse.class, data);
 606                                 else if (p.httpMethod == HttpMethod.PUT)
 607                                         response = webResource.accept(tt).type(tt).put(ClientResponse.class, data);
 608
 609                                 r.code = response.getStatus();
 610                                 etag = response.getEntityTag();
 611                                 if (etag != null)
 612                                         r.message = etag.getValue();
 613                                 if (response.hasEntity() && r.code != 204)
 614                                         r.body = response.getEntity(String.class);
 615                         }
 616                 }
 617
 618                 long t2 = System.currentTimeMillis();
 619                 log.info("Response received. Time: " + (t2 - t1));
 620                 log.info("HTTP response code: " + r.code);
 621                 log.info("HTTP response message: " + r.message);
 622                 logHeaders(r.headers);
 623                 log.info("HTTP response: " + r.body);
 624
 625                 return r;
 626         }
 627
 628         public void postMessageOnUeb(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
 629                 HttpResponse r = null;
 630                 try {
 631                         UebParam p = getUebParameters(paramMap);
 632
 633                         String pp = p.responsePrefix != null ? p.responsePrefix + '.' : "";
 634
 635                         String req = null;
 636
 637                         if (p.templateFileName == null) {
 638                                 log.info("No template file name specified. Using default UEB template: " + defaultUebTemplateFileName);
 639                                 p.templateFileName = defaultUebTemplateFileName;
 640                         }
 641
 642                         String reqTemplate = readFile(p.templateFileName);
 643                         reqTemplate = reqTemplate.replaceAll("rootVarName", p.rootVarName);
 644                         req = buildXmlJsonRequest(ctx, reqTemplate, Format.JSON);
 645
 646                         r = postOnUeb(req, p);
 647                         setResponseStatus(ctx, p.responsePrefix, r);
 648                         if (r.body != null)
 649                                 ctx.setAttribute(pp + "httpResponse", r.body);
 650
 651                 } catch (Exception e) {
 652                         log.error("Error sending the request: " + e.getMessage(), e);
 653
 654                         r = new HttpResponse();
 655                         r.code = 500;
 656                         r.message = e.getMessage();
 657                         String prefix = parseParam(paramMap, "responsePrefix", false, null);
 658                         setResponseStatus(ctx, prefix, r);
 659                 }
 660
 661                 if (r != null && r.code >= 300)
 662                         throw new SvcLogicException(String.valueOf(r.code) + ": " + r.message);
 663         }
 664
 665         private static class UebParam {
 666
 667                 public String topic;
 668                 public String templateFileName;
 669                 public String rootVarName;
 670                 public String responsePrefix;
 671                 public boolean skipSending;
 672         }
 673
 674         private UebParam getUebParameters(Map<String, String> paramMap) throws SvcLogicException {
 675                 UebParam p = new UebParam();
 676                 p.topic = parseParam(paramMap, "topic", true, null);
 677                 p.templateFileName = parseParam(paramMap, "templateFileName", false, null);
 678                 p.rootVarName = parseParam(paramMap, "rootVarName", false, null);
 679                 p.responsePrefix = parseParam(paramMap, "responsePrefix", false, null);
 680                 String skipSendingStr = paramMap.get("skipSending");
 681                 p.skipSending = skipSendingStr != null && skipSendingStr.equalsIgnoreCase("true");
 682                 return p;
 683         }
 684
 685         protected HttpResponse postOnUeb(String request, UebParam p) throws Exception {
 686                 String[] urls = uebServers.split(" ");
 687                 for (int i = 0; i < urls.length; i++) {
 688                         if (!urls[i].endsWith("/"))
 689                                 urls[i] += "/";
 690                         urls[i] += "events/" + p.topic;
 691                 }
 692
 693                 Client client = Client.create();
 694                 client.setConnectTimeout(5000);
 695                 WebResource webResource = client.resource(urls[0]);
 696
 697                 log.info("UEB URL: " + urls[0]);
 698                 log.info("Sending request:");
 699                 log.info(request);
 700                 long t1 = System.currentTimeMillis();
 701
 702                 HttpResponse r = new HttpResponse();
 703                 r.code = 200;
 704
 705                 if (!p.skipSending) {
 706                         String tt = "application/json";
 707                         String tt1 = tt + ";charset=UTF-8";
 708
 709                         ClientResponse response = webResource.accept(tt).type(tt1).post(ClientResponse.class, request);
 710
 711                         r.code = response.getStatus();
 712                         r.headers = response.getHeaders();
 713                         if (response.hasEntity())
 714                                 r.body = response.getEntity(String.class);
 715                 }
 716
 717                 long t2 = System.currentTimeMillis();
 718                 log.info("Response received. Time: " + (t2 - t1));
 719                 log.info("HTTP response code: " + r.code);
 720                 logHeaders(r.headers);
 721                 log.info("HTTP response:\n" + r.body);
 722
 723                 return r;
 724         }
 725
 726         protected void logProperties(Map<String, Object> mm) {
 727                 List<String> ll = new ArrayList<>();
 728                 for (Object o : mm.keySet())
 729                         ll.add((String) o);
 730                 Collections.sort(ll);
 731
 732                 log.info("Properties:");
 733                 for (String name : ll)
 734                         log.info("--- " + name + ": " + String.valueOf(mm.get(name)));
 735         }
 736
 737         protected void logHeaders(MultivaluedMap<String, String> mm) {
 738                 log.info("HTTP response headers:");
 739
 740                 if (mm == null)
 741                         return;
 742
 743                 List<String> ll = new ArrayList<>();
 744                 for (Object o : mm.keySet())
 745                         ll.add((String) o);
 746                 Collections.sort(ll);
 747
 748                 for (String name : ll)
 749                         log.info("--- " + name + ": " + String.valueOf(mm.get(name)));
 750         }
 751
 752         public void setUebServers(String uebServers) {
 753                 this.uebServers = uebServers;
 754         }
 755
 756         public void setDefaultUebTemplateFileName(String defaultUebTemplateFileName) {
 757                 this.defaultUebTemplateFileName = defaultUebTemplateFileName;
 758         }
 759 }