Add Google Java Format

Signed-off-by: Jarno Elovirta <[email protected]>

build.gradle

@@ -5,6 +5,10 @@
  *
  * See the accompanying LICENSE file for applicable license.
  */
+plugins {
+    id "com.diffplug.gradle.spotless" version "3.26.0"
+}
+
 apply plugin: 'java'
 apply plugin: 'maven'
 
@@ -67,3 +71,9 @@ task dist(type: Zip) {
     }
     archiveName "org.dita.${project.name}-${project.version}.zip"
 }
+
+spotless {
+    java {
+        googleJavaFormat()
+    }
+}

src/main/java/org/dita/index/IndexCollator.java

@@ -36,19 +36,19 @@ RELIANCE, OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO LOSS OF
 
 public class IndexCollator {
 
-    private Comparator collator;
-
-    public IndexCollator(final Locale locale) {
-        try {
-            collator = com.ibm.icu.text.Collator.getInstance(locale);
-        } catch (final NoClassDefFoundError ex) {
-            System.out.println("[INFO] IBM ICU4J Collator is not found. Default Java Collator will be used");
-            collator = java.text.Collator.getInstance(locale);
-        }
-    }
-
-    public int compare(final Object o1, final Object o2) {
-        return collator.compare(o1, o2);
+  private Comparator collator;
+
+  public IndexCollator(final Locale locale) {
+    try {
+      collator = com.ibm.icu.text.Collator.getInstance(locale);
+    } catch (final NoClassDefFoundError ex) {
+      System.out.println(
+          "[INFO] IBM ICU4J Collator is not found. Default Java Collator will be used");
+      collator = java.text.Collator.getInstance(locale);
     }
+  }
 
+  public int compare(final Object o1, final Object o2) {
+    return collator.compare(o1, o2);
+  }
 }

src/main/java/org/dita/index/IndexComparator.java

@@ -36,23 +36,23 @@ RELIANCE, OR CONSEQUENTIAL DAMAGES (INCLUDING BUT NOT LIMITED TO LOSS OF
 
 class IndexComparator implements Comparator<IndexEntry> {
 
-    private final IndexCollator collator;
-
-    public IndexComparator(final Locale locale) {
-        this.collator = new IndexCollator(locale);
-    }
-
-    public int compare(final IndexEntry o1, final IndexEntry o2) {
-        final String value1 = getSortString(o1);
-        final String value2 = getSortString(o2);
-        return collator.compare(value1, value2);
-    }
-
-    private String getSortString(final IndexEntry entry) {
-        if (entry.getSortString() != null) {
-            return entry.getSortString();
-        } else {
-            return entry.getValue();
-        }
+  private final IndexCollator collator;
+
+  public IndexComparator(final Locale locale) {
+    this.collator = new IndexCollator(locale);
+  }
+
+  public int compare(final IndexEntry o1, final IndexEntry o2) {
+    final String value1 = getSortString(o1);
+    final String value2 = getSortString(o2);
+    return collator.compare(value1, value2);
+  }
+
+  private String getSortString(final IndexEntry entry) {
+    if (entry.getSortString() != null) {
+      return entry.getSortString();
+    } else {
+      return entry.getValue();
     }
+  }
 }