aai-core/src/main/java/org/onap/aai/restcore/util/URITools.java

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   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 package org.onap.aai.restcore.util;
  23
  24 import java.io.UnsupportedEncodingException;
  25 import java.net.URI;
  26 import java.util.HashMap;
  27 import java.util.LinkedHashSet;
  28 import java.util.Map;
  29 import java.util.Map.Entry;
  30 import java.util.Optional;
  31 import java.util.Set;
  32 import java.util.regex.Matcher;
  33 import java.util.regex.Pattern;
  34
  35 import javax.ws.rs.core.MultivaluedHashMap;
  36 import javax.ws.rs.core.MultivaluedMap;
  37
  38 import org.springframework.web.util.UriUtils;
  39
  40 import org.onap.aai.introspection.Introspector;
  41 import org.onap.aai.introspection.sideeffect.exceptions.AAIMissingRequiredPropertyException;
  42 import org.onap.aai.schema.enums.PropertyMetadata;
  43
  44 public class URITools {
  45
  46         protected static final Pattern template = Pattern.compile("\\{(.*?)\\}");
  47
  48         public static MultivaluedMap<String, String> getQueryMap(URI uri) {
  49                 MultivaluedMap<String, String> result = new MultivaluedHashMap<>();
  50                 String queryParams = uri.getRawQuery();
  51                 if (queryParams != null) {
  52                         try {
  53                                 String[] sections = queryParams.split("&");
  54                                 String[] query = null;
  55                                 String key, value = "";
  56                                 for (String section : sections) {
  57                                         query = section.split("=");
  58                                         key = UriUtils.decode(query[0], "UTF-8");
  59                                         value = UriUtils.decode(query[1], "UTF-8");
  60                                         if (result.containsKey(key)) {
  61                                                 result.add(key, value);
  62                                         } else {
  63                                                 result.putSingle(key, value);
  64                                         }
  65                                 }
  66                         } catch (UnsupportedEncodingException e ) {
  67
  68                         }
  69                 }
  70                 return result;
  71
  72         }
  73
  74         public static Optional<String> replaceTemplates(Introspector obj, String uriString, PropertyMetadata metadata, boolean replaceWithWildcard) throws AAIMissingRequiredPropertyException {
  75                 String result = uriString;
  76                 final Map<String, String> propMap = URITools.findProperties(obj, uriString, metadata, replaceWithWildcard);
  77                 if (propMap.isEmpty()) {
  78                         return Optional.empty();
  79                 }
  80                 for (Entry<String, String> entry : propMap.entrySet()) {
  81                         result = result.replaceAll("\\{" + entry.getKey() + "\\}", entry.getValue());
  82                 }
  83                 //drop out wildcards if they exist
  84                 result = result.replaceFirst("/[^/]+?(?:/\\*)+", "");
  85                 return Optional.of(result);
  86         }
  87
  88         private static Map<String, String> findProperties(Introspector obj, String uriString, PropertyMetadata metadata, boolean replaceWithWildcard) throws AAIMissingRequiredPropertyException {
  89
  90                 final Map<String, String> result = new HashMap<>();
  91                 final Set<String> missing = new LinkedHashSet<>();
  92                 Matcher m = template.matcher(uriString);
  93                 int properties = 0;
  94                 while (m.find()) {
  95                         String propName = m.group(1);
  96                         String value = obj.getValue(propName);
  97                         properties++;
  98                         if (value != null) {
  99                                 result.put(propName, value);
 100                         } else {
 101                                 if (replaceWithWildcard) {
 102                                         result.put(propName, "*");
 103                                 }
 104                                 missing.add(propName);
 105                         }
 106                 }
 107
 108                 if (!missing.isEmpty() && (properties != missing.size())) {
 109                         throw new AAIMissingRequiredPropertyException("Cannot complete " + metadata.toString() + " uri. Missing properties " + missing);
 110                 }
 111                 return result;
 112         }
 113
 114 }