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

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   4  * ================================================================================
   5  * Copyright © 2017-2018 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 package org.onap.aai.restcore.util;
  21
  22 import java.io.UnsupportedEncodingException;
  23 import java.net.URI;
  24 import java.util.HashMap;
  25 import java.util.LinkedHashSet;
  26 import java.util.Map;
  27 import java.util.Map.Entry;
  28 import java.util.Optional;
  29 import java.util.Set;
  30 import java.util.regex.Matcher;
  31 import java.util.regex.Pattern;
  32
  33 import javax.ws.rs.core.MultivaluedHashMap;
  34 import javax.ws.rs.core.MultivaluedMap;
  35
  36 import org.springframework.web.util.UriUtils;
  37
  38 import org.onap.aai.introspection.Introspector;
  39 import org.onap.aai.introspection.sideeffect.exceptions.AAIMissingRequiredPropertyException;
  40 import org.onap.aai.schema.enums.PropertyMetadata;
  41
  42 public class URITools {
  43
  44         protected static final Pattern template = Pattern.compile("\\{(.*?)\\}");
  45
  46         public static MultivaluedMap<String, String> getQueryMap(URI uri) {
  47                 MultivaluedMap<String, String> result = new MultivaluedHashMap<>();
  48                 String queryParams = uri.getRawQuery();
  49                 if (queryParams != null) {
  50                         try {
  51                                 String[] sections = queryParams.split("&");
  52                                 String[] query = null;
  53                                 String key, value = "";
  54                                 for (String section : sections) {
  55                                         query = section.split("=");
  56                                         key = UriUtils.decode(query[0], "UTF-8");
  57                                         if(query[1] != null){
  58                                                 query[1] = query[1].replaceAll("\\+", "%20");
  59                                         }
  60                                         value = UriUtils.decode(query[1], "UTF-8");
  61                                         if (result.containsKey(key)) {
  62                                                 result.add(key, value);
  63                                         } else {
  64                                                 result.putSingle(key, value);
  65                                         }
  66                                 }
  67                         } catch (UnsupportedEncodingException e ) {
  68
  69                         }
  70                 }
  71                 return result;
  72
  73         }
  74
  75         public static Optional<String> replaceTemplates(Introspector obj, String uriString, PropertyMetadata metadata, boolean replaceWithWildcard) throws AAIMissingRequiredPropertyException {
  76                 String result = uriString;
  77                 final Map<String, String> propMap = URITools.findProperties(obj, uriString, metadata, replaceWithWildcard);
  78                 if (propMap.isEmpty()) {
  79                         return Optional.empty();
  80                 }
  81                 for (Entry<String, String> entry : propMap.entrySet()) {
  82                         result = result.replaceAll("\\{" + entry.getKey() + "\\}", entry.getValue());
  83                 }
  84                 //drop out wildcards if they exist
  85                 result = result.replaceFirst("/[^/]+?(?:/\\*)+", "");
  86                 return Optional.of(result);
  87         }
  88
  89         private static Map<String, String> findProperties(Introspector obj, String uriString, PropertyMetadata metadata, boolean replaceWithWildcard) throws AAIMissingRequiredPropertyException {
  90
  91                 final Map<String, String> result = new HashMap<>();
  92                 final Set<String> missing = new LinkedHashSet<>();
  93                 Matcher m = template.matcher(uriString);
  94                 int properties = 0;
  95                 while (m.find()) {
  96                         String propName = m.group(1);
  97                         String value = obj.getValue(propName);
  98                         properties++;
  99                         if (value != null) {
 100                                 result.put(propName, value);
 101                         } else {
 102                                 if (replaceWithWildcard) {
 103                                         result.put(propName, "*");
 104                                 }
 105                                 missing.add(propName);
 106                         }
 107                 }
 108
 109                 if (!missing.isEmpty() && (properties != missing.size())) {
 110                         throw new AAIMissingRequiredPropertyException("Cannot complete " + metadata.toString() + " uri. Missing properties " + missing);
 111                 }
 112                 return result;
 113         }
 114
 115 }