Closes #305: exclude tags from search

docs-core/src/main/java/com/sismics/docs/core/dao/criteria/DocumentCriteria.java

@@ -51,6 +51,12 @@ public class DocumentCriteria {
      */
     private List<List<String>> tagIdList;
     
+    /**
+     * Tag IDs to excluded.
+     * The first and second level list will be excluded.
+     */
+    private List<List<String>> excludedTagIdList;
+
     /**
      * Shared status.
      */
@@ -119,6 +125,15 @@ public class DocumentCriteria {
         this.tagIdList = tagIdList;
     }
 
+    public List<List<String>> getExcludedTagIdList() {
+        return excludedTagIdList;
+    }
+
+    public DocumentCriteria setExcludedTagIdList(List<List<String>> excludedTagIdList) {
+        this.excludedTagIdList = excludedTagIdList;
+        return this;
+    }
+
     public Boolean getShared() {
         return shared;
     }

docs-core/src/main/java/com/sismics/docs/core/util/indexing/LuceneIndexingHandler.java

@@ -309,6 +309,19 @@ public class LuceneIndexingHandler implements IndexingHandler {
                 criteriaList.add("(" + Joiner.on(" OR ").join(tagCriteriaList) + ")");
             }
         }
+        if (criteria.getExcludedTagIdList() != null && !criteria.getExcludedTagIdList().isEmpty()) {
+            int index = 0;
+            for (List<String> tagIdList : criteria.getExcludedTagIdList()) {
+                List<String> tagCriteriaList = Lists.newArrayList();
+                for (String tagId : tagIdList) {
+                    sb.append(String.format("left join T_DOCUMENT_TAG dtex%d on dtex%d.DOT_IDDOCUMENT_C = d.DOC_ID_C and dtex%d.DOT_IDTAG_C = :tagIdEx%d and dtex%d.DOT_DELETEDATE_D is null ", index, index, index, index, index));
+                    parameterMap.put("tagIdEx" + index, tagId);
+                    tagCriteriaList.add(String.format("dtex%d.DOT_ID_C is null", index));
+                    index++;
+                }
+                criteriaList.add("(" + Joiner.on(" AND ").join(tagCriteriaList) + ")");
+            }
+        }
         if (criteria.getShared() != null && criteria.getShared()) {
             criteriaList.add("s.count > 0");
         }

docs-web/src/main/java/com/sismics/docs/rest/resource/DocumentResource.java

@@ -459,11 +459,15 @@ public class DocumentResource extends BaseResource {
 
             switch (params[0]) {
                 case "tag":
+                case "!tag":
                     // New tag criteria
                     List<TagDto> tagDtoList = TagUtil.findByName(params[1], allTagDtoList);
                     if (documentCriteria.getTagIdList() == null) {
                         documentCriteria.setTagIdList(new ArrayList<>());
                     }
+                    if (documentCriteria.getExcludedTagIdList() == null) {
+                        documentCriteria.setExcludedTagIdList(new ArrayList<>());
+                    }
                     if (tagDtoList.isEmpty()) {
                         // No tag found, the request must returns nothing
                         documentCriteria.getTagIdList().add(Lists.newArrayList(UUID.randomUUID().toString()));
@@ -476,8 +480,12 @@ public class DocumentResource extends BaseResource {
                                 tagIdList.add(childrenTagDto.getId());
                             }
                         }
+                        if (params[0].startsWith("!")) {
+                            documentCriteria.getExcludedTagIdList().add(tagIdList);
+                        } else {
                             documentCriteria.getTagIdList().add(tagIdList);
                         }
+                    }
                     break;
                 case "after":
                 case "before":

docs-web/src/main/webapp/src/app/docs/controller/document/Document.js

@@ -319,9 +319,9 @@ angular.module('docs').controller('Document', function ($scope, $rootScope, $tim
    */
   $scope.extractNavigatedTag = function () {
     // Find the current tag in the search query
-    var tagFound = /tag:([^ ]*)/.exec($scope.search);
+    var tagFound = /(^| )tag:([^ ]*)/.exec($scope.search);
     if (tagFound) {
-      tagFound = tagFound[1];
+      tagFound = tagFound[2];
       // We search only for exact match
       $scope.navigatedTag = _.findWhere($scope.tags, { name: tagFound });
     } else {

docs-web/src/test/java/com/sismics/docs/rest/TestDocumentResource.java

@@ -209,7 +209,9 @@ public class TestDocumentResource extends BaseJerseyTest {
         Assert.assertEquals(2, searchDocuments("uat:" + DateTimeFormat.forPattern("yyyy-MM-dd").print(new Date().getTime()), document1Token));
         Assert.assertEquals(2, searchDocuments("uafter:2010 ubefore:2040-08", document1Token));
         Assert.assertEquals(1, searchDocuments("tag:super", document1Token));
+        Assert.assertEquals(1, searchDocuments("!tag:super", document1Token));
         Assert.assertEquals(1, searchDocuments("tag:super tag:hr", document1Token));
+        Assert.assertEquals(0, searchDocuments("tag:super !tag:hr", document1Token));
         Assert.assertEquals(1, searchDocuments("shared:yes", document1Token));
         Assert.assertEquals(2, searchDocuments("lang:eng", document1Token));
         Assert.assertEquals(1, searchDocuments("after:2010 before:2040-08 tag:super shared:yes lang:eng title description full:uranium", document1Token));