Index the abstract

.gitignore

@@ -2,3 +2,4 @@ data
 data-test
 target
 output
+.index

src/main/java/org/RI/P2/Indexer.java

@@ -85,6 +85,11 @@ public class Indexer {
             authorName = authorName.replaceAll("\\p{P}", "");
             doc.add(new TextField("authors", authorName, Field.Store.YES));
         }
+        StringBuilder fullAbstract = new StringBuilder();
+        for (Abstract abstract_ : paper.abstract_) {
+            fullAbstract.append(abstract_.text);
+        }
+        doc.add(new TextField("abstract", fullAbstract.toString(), Field.Store.NO));
         index.addDocument(doc);
     }
 

src/main/java/org/RI/P2/Paper.java

@@ -2,6 +2,8 @@ package org.RI.P2;
 
 import java.util.List;
 
+import com.google.gson.annotations.SerializedName;
+
 class Affiliation {
     String laboratory;
     String institution;
@@ -40,6 +42,7 @@ class Body_Text {
 public class Paper {
     String paper_id;
     Metadata metadata;
-    List<Abstract> _abstract;
+    @SerializedName("abstract")
+    List<Abstract> abstract_;
     List<Body_Text> body_text;
 }