Merge branch 'master' of https://github.com/jmaciasluque/hello-lucene

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "maven" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"

.github/workflows/maven.yml

@@ -0,0 +1,17 @@
+name: Java CI
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: "17"
+          distribution: "temurin"
+      - name: Build with Maven
+        run: mvn --batch-mode --update-snapshots clean package

.gitignore

@@ -1,4 +1,5 @@
-# Created by .ignore support plugin (hsz.mobi)
+.vscode
+
 ### Maven template
 target/
 pom.xml.tag
@@ -24,4 +25,4 @@ buildNumber.properties
 .idea/vcs.xml
 HelloLucene.iml
 src/main/main.iml
-.idea/dictionaries/
+.idea/dictionaries/

README.md

@@ -1,9 +1,10 @@
 hello-lucene
 ============
 
-Mavenized version of Kelvin Tan's example (http://www.lucenetutorial.com/lucene-in-5-minutes.html)
+Mavenized version of Kelvin Tan's example <http://www.lucenetutorial.com/lucene-in-5-minutes.html>
 
 Use the following command to run the program:
-```
-$ mvn package -q
+
+```bash
+mvn --quiet clean package
 ```

pom.xml

@@ -1,64 +1,79 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <groupId>me.juanmacias</groupId>
-  <artifactId>HelloLucene</artifactId>
-  <version>0.0.2-SNAPSHOT</version>
-  <name>Hello Lucene</name>
-  <description>Mavenized version of Kelvin Tan's example</description>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>me.juanmacias</groupId>
+	<artifactId>HelloLucene</artifactId>
+	<version>0.0.3-SNAPSHOT</version>
+	<name>Hello Lucene</name>
+	<description>Mavenized version of Kelvin Tan's example</description>
+
+	<properties>
+		<maven.compiler.source>17</maven.compiler.source>
+		<maven.compiler.target>17</maven.compiler.target>
+	</properties>
 
-
 	<build>
-	  <plugins>
-	      <plugin>
-	          <groupId>org.codehaus.mojo</groupId>
-	          <artifactId>exec-maven-plugin</artifactId>
-	          <version>1.3.2</version>
-	          <executions>
-	              <execution>
-	                  <id>ex</id>
-	                  <phase>package</phase>
-	                  <goals>
-	                      <goal>exec</goal>
-	                  </goals>
-	                  <configuration>
-	                      <executable>java</executable>
-	                      <arguments>
-	                          <argument>-classpath</argument>
-	                          <classpath />
-	                          <argument>me.juanmacias.HelloLucene</argument>
-	                      </arguments>
-	                  </configuration>
-	              </execution>
-	          </executions>
-	      </plugin>
-	  </plugins>
+		<plugins>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>exec-maven-plugin</artifactId>
+				<version>1.3.2</version>
+				<executions>
+					<execution>
+						<id>ex</id>
+						<phase>package</phase>
+						<goals>
+							<goal>exec</goal>
+						</goals>
+						<configuration>
+							<executable>java</executable>
+							<arguments>
+								<argument>-classpath</argument>
+								<classpath />
+								<argument>me.juanmacias.HelloLucene</argument>
+							</arguments>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>versions-maven-plugin</artifactId>
+				<version>2.7</version>
+				<configuration>
+					<excludes>
+						<exclude>org.apache.commons:commons-collections4</exclude>
+					</excludes>
+				</configuration>
+			</plugin>
+		</plugins>
 	</build>
 
 	<dependencies>
-	  	<dependency>
+		<dependency>
 			<groupId>org.apache.lucene</groupId>
 			<artifactId>lucene-core</artifactId>
-			<version>7.1.0</version>
+			<version>9.5.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.lucene</groupId>
 			<artifactId>lucene-queries</artifactId>
-			<version>7.1.0</version>
+			<version>9.5.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.lucene</groupId>
 			<artifactId>lucene-test-framework</artifactId>
-			<version>7.1.0</version>
+			<version>9.5.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.lucene</groupId>
 			<artifactId>lucene-analyzers-common</artifactId>
-			<version>7.1.0</version>
+			<version>8.11.2</version>
 		</dependency>
-	    <dependency>
+		<dependency>
 			<groupId>org.apache.lucene</groupId>
 			<artifactId>lucene-queryparser</artifactId>
-			<version>7.1.0</version>
+			<version>9.5.0</version>
 		</dependency>
 	</dependencies>
 

src/main/java/me/juanmacias/HelloLucene.java

@@ -9,26 +9,25 @@
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.IndexWriter;
 import org.apache.lucene.index.IndexWriterConfig;
-import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
+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.TopScoreDocCollector;
+import org.apache.lucene.search.TopDocs;
 import org.apache.lucene.store.Directory;
-import org.apache.lucene.store.RAMDirectory;
+import org.apache.lucene.store.ByteBuffersDirectory;
 
 import java.io.IOException;
 
 public class HelloLucene {
 
     public static void main(String[] args) throws IOException {
         // 0. Specify the analyzer for tokenizing text.
-        //    The same analyzer should be used for indexing and searching
+        // The same analyzer should be used for indexing and searching
         StandardAnalyzer analyzer = new StandardAnalyzer();
 
         // 1. create the index
-        Directory index = new RAMDirectory();
-
+        Directory index = new ByteBuffersDirectory();
         IndexWriterConfig config = new IndexWriterConfig(analyzer);
 
         IndexWriter w = new IndexWriter(index, config);
@@ -45,8 +44,7 @@ public static void main(String[] args) throws IOException {
         // when no field is explicitly specified in the query.
         Query query = null;
         try {
-            String[] fields = {"title"};
-            query = new MultiFieldQueryParser(fields, analyzer).parse(queryString);
+            query = new QueryParser("title", analyzer).parse(queryString);
         } catch (org.apache.lucene.queryparser.classic.ParseException e) {
             e.printStackTrace();
         }
@@ -55,9 +53,8 @@ public static void main(String[] args) throws IOException {
         int hitsPerPage = 10;
         IndexReader reader = DirectoryReader.open(index);
         IndexSearcher searcher = new IndexSearcher(reader);
-        TopScoreDocCollector collector = TopScoreDocCollector.create(hitsPerPage);
-        searcher.search(query, collector);
-        ScoreDoc[] hits = collector.topDocs().scoreDocs;
+        TopDocs docs = searcher.search(query, hitsPerPage);
+        ScoreDoc[] hits = docs.scoreDocs;
 
         // 4. display results
         System.out.println("Found " + hits.length + " hits.");