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

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