Adding searchers

src/main/java/com/search/lucene/Lucene.java

@@ -4,7 +4,7 @@ import java.io.IOException;
 
 import com.search.lucene.file.filters.TextFileFilter;
 import com.search.lucene.indexers.TextFileIndexer;
-import com.search.lucene.searchers.Searcher;
+import com.search.lucene.searchers.TextFileSearcher;
 import com.search.lucene.settings.LuceneConstants;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.queryparser.classic.ParseException;
@@ -16,7 +16,7 @@ public class Lucene {
     private static final String indexDir = "index";
     private static final String dataDir = "data";
     private static TextFileIndexer indexer;
-    private static Searcher searcher;
+    private static TextFileSearcher textFileSearcher;
 
     public static void main(String[] args) {
         try {
@@ -42,15 +42,15 @@ public class Lucene {
     }
 
     private static void search(String searchQuery) throws IOException, ParseException {
-        searcher = new Searcher(indexDir);
+        textFileSearcher = new TextFileSearcher(indexDir);
         long startTime = System.currentTimeMillis();
-        TopDocs hits = searcher.search(searchQuery);
+        TopDocs hits = textFileSearcher.search(searchQuery);
         long endTime = System.currentTimeMillis();
 
         System.out.println(hits.totalHits +
                 " documents found. Time :" + (endTime - startTime));
         for(ScoreDoc scoreDoc : hits.scoreDocs) {
-            Document doc = searcher.getDocument(scoreDoc);
+            Document doc = textFileSearcher.getDocument(scoreDoc);
             System.out.println("File: "
                     + doc.get(LuceneConstants.FILE_PATH));
         }

src/main/java/com/search/lucene/searchers/Searcher.java → src/main/java/com/search/lucene/searchers/CSVFileSearcher.java

 package com.search.lucene.searchers;
 
-import java.io.IOException;
-import java.nio.file.Paths;
-
+import com.search.lucene.searchers.abstractions.ISearcher;
 import com.search.lucene.settings.LuceneConstants;
 import org.apache.lucene.analysis.standard.StandardAnalyzer;
 import org.apache.lucene.document.Document;
@@ -18,13 +16,16 @@ import org.apache.lucene.search.TopDocs;
 import org.apache.lucene.store.Directory;
 import org.apache.lucene.store.FSDirectory;
 
-public class Searcher {
+import java.io.IOException;
+import java.nio.file.Paths;
+
+public class CSVFileSearcher implements ISearcher {
 
     IndexSearcher indexSearcher;
     QueryParser queryParser;
     Query query;
 
-    public Searcher(String indexDirectoryPath)
+    public CSVFileSearcher(String indexDirectoryPath)
             throws IOException {
         Directory indexDirectory =
                 FSDirectory.open(Paths.get(indexDirectoryPath));
@@ -34,12 +35,13 @@ public class Searcher {
                 new StandardAnalyzer());
     }
 
+    @Override
     public TopDocs search( String searchQuery)
             throws IOException, ParseException {
         query = queryParser.parse(searchQuery);
         return indexSearcher.search(query, LuceneConstants.MAX_SEARCH);
     }
-
+    @Override
     public Document getDocument(ScoreDoc scoreDoc)
             throws CorruptIndexException, IOException {
         return indexSearcher.doc(scoreDoc.doc);

src/main/java/com/search/lucene/searchers/PDFFileSearcher.java

+package com.search.lucene.searchers;
+
+import com.search.lucene.searchers.abstractions.ISearcher;
+import com.search.lucene.settings.LuceneConstants;
+import org.apache.lucene.analysis.standard.StandardAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.index.CorruptIndexException;
+import org.apache.lucene.index.DirectoryReader;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.queryparser.classic.ParseException;
+import org.apache.lucene.queryparser.classic.QueryParser;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.FSDirectory;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+public class PDFFileSearcher implements ISearcher {
+
+    IndexSearcher indexSearcher;
+    QueryParser queryParser;
+    Query query;
+
+    public PDFFileSearcher(String indexDirectoryPath)
+            throws IOException {
+        Directory indexDirectory =
+                FSDirectory.open(Paths.get(indexDirectoryPath));
+        IndexReader reader = DirectoryReader.open(indexDirectory);
+        indexSearcher = new IndexSearcher(reader);
+        queryParser = new QueryParser(LuceneConstants.CONTENTS,
+                new StandardAnalyzer());
+    }
+
+    @Override
+    public TopDocs search( String searchQuery)
+            throws IOException, ParseException {
+        query = queryParser.parse(searchQuery);
+        return indexSearcher.search(query, LuceneConstants.MAX_SEARCH);
+    }
+    @Override
+    public Document getDocument(ScoreDoc scoreDoc)
+            throws CorruptIndexException, IOException {
+        return indexSearcher.doc(scoreDoc.doc);
+    }
+
+}
\ No newline at end of file

src/main/java/com/search/lucene/searchers/TextFileSearcher.java

+package com.search.lucene.searchers;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+import com.search.lucene.searchers.abstractions.ISearcher;
+import com.search.lucene.settings.LuceneConstants;
+import org.apache.lucene.analysis.standard.StandardAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.index.CorruptIndexException;
+import org.apache.lucene.index.DirectoryReader;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.queryparser.classic.ParseException;
+import org.apache.lucene.queryparser.classic.QueryParser;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.FSDirectory;
+
+public class TextFileSearcher implements ISearcher {
+
+    IndexSearcher indexSearcher;
+    QueryParser queryParser;
+    Query query;
+
+    public TextFileSearcher(String indexDirectoryPath)
+            throws IOException {
+        Directory indexDirectory =
+                FSDirectory.open(Paths.get(indexDirectoryPath));
+        IndexReader reader = DirectoryReader.open(indexDirectory);
+        indexSearcher = new IndexSearcher(reader);
+        queryParser = new QueryParser(LuceneConstants.CONTENTS,
+                new StandardAnalyzer());
+    }
+
+    @Override
+    public TopDocs search( String searchQuery)
+            throws IOException, ParseException {
+        query = queryParser.parse(searchQuery);
+        return indexSearcher.search(query, LuceneConstants.MAX_SEARCH);
+    }
+    @Override
+    public Document getDocument(ScoreDoc scoreDoc)
+            throws CorruptIndexException, IOException {
+        return indexSearcher.doc(scoreDoc.doc);
+    }
+
+}
\ No newline at end of file

src/main/java/com/search/lucene/searchers/abstractions/ISearcher.java

+package com.search.lucene.searchers.abstractions;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.index.CorruptIndexException;
+import org.apache.lucene.queryparser.classic.ParseException;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TopDocs;
+
+import java.io.IOException;
+
+
+public interface ISearcher {
+     Document getDocument(ScoreDoc scoreDoc) throws CorruptIndexException, IOException;
+     TopDocs search(String searchQuery) throws IOException, ParseException;
+}