JSPWIKI-1136 - Refine Class member fields

apache · Dec 6, 2020 · b5c9df3 · b5c9df3
1 parent 9c313bf
commit b5c9df3
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Showing 69 changed files with 154 additions and 146 deletions.
diff --git a/jspwiki-api/src/main/java/org/apache/wiki/api/Release.java b/jspwiki-api/src/main/java/org/apache/wiki/api/Release.java
@@ -109,9 +109,10 @@ public static boolean isNewerOrEqual( final String version ) throws IllegalArgum
         	return true;
         }
         final String[] versionComponents = StringUtils.split( version, VERSION_SEPARATORS );
-        final int reqVersion       = versionComponents.length > 0 ? Integer.parseInt( versionComponents[0] ) : Release.VERSION;
-        final int reqRevision      = versionComponents.length > 1 ? Integer.parseInt( versionComponents[1] ) : Release.REVISION;
-        final int reqMinorRevision = versionComponents.length > 2 ? Integer.parseInt( versionComponents[2] ) : Release.MINORREVISION;
+        final int versionCompoLength = versionComponents.length;
+        final int reqVersion       = versionCompoLength > 0 ? Integer.parseInt( versionComponents[0] ) : Release.VERSION;
+        final int reqRevision      = versionCompoLength > 1 ? Integer.parseInt( versionComponents[1] ) : Release.REVISION;
+        final int reqMinorRevision = versionCompoLength > 2 ? Integer.parseInt( versionComponents[2] ) : Release.MINORREVISION;
 
         if( VERSION == reqVersion ) {
             if( REVISION == reqRevision ) {
@@ -139,9 +140,10 @@ public static boolean isOlderOrEqual( final String version ) throws IllegalArgum
         }
 
         final String[] versionComponents = StringUtils.split( version, VERSION_SEPARATORS );
-        final int reqVersion       = versionComponents.length > 0 ? Integer.parseInt( versionComponents[0] ) : Release.VERSION;
-        final int reqRevision      = versionComponents.length > 1 ? Integer.parseInt( versionComponents[1] ) : Release.REVISION;
-        final int reqMinorRevision = versionComponents.length > 2 ? Integer.parseInt( versionComponents[2] ) : Release.MINORREVISION;
+        final int versionCompoLength = versionComponents.length;
+        final int reqVersion       = versionCompoLength > 0 ? Integer.parseInt( versionComponents[0] ) : Release.VERSION;
+        final int reqRevision      = versionCompoLength > 1 ? Integer.parseInt( versionComponents[1] ) : Release.REVISION;
+        final int reqMinorRevision = versionCompoLength > 2 ? Integer.parseInt( versionComponents[2] ) : Release.MINORREVISION;
 
         if( VERSION == reqVersion ) {
             if( REVISION == reqRevision ) {

diff --git a/jspwiki-event/src/main/java/org/apache/wiki/event/WikiEventManager.java b/jspwiki-event/src/main/java/org/apache/wiki/event/WikiEventManager.java
@@ -126,7 +126,7 @@ public final class WikiEventManager {
     private static final Logger log = Logger.getLogger(WikiEventManager.class);
 
     /* If true, permits a WikiEventMonitor to be set. */
-    private static boolean c_permitMonitor = false;
+    private static final boolean c_permitMonitor = false;
 
     /* Optional listener to be used as all-event monitor. */
     private static WikiEventListener c_monitor = null;

diff --git a/jspwiki-event/src/main/java/org/apache/wiki/event/WikiPageEvent.java b/jspwiki-event/src/main/java/org/apache/wiki/event/WikiPageEvent.java
@@ -163,7 +163,7 @@ public class WikiPageEvent extends WikiEvent {
     /** Indicates a wiki page reindex event (a page was changed when requested to a provided) */
     public static final int PAGE_REINDEX         = 28;
 
-    private String m_pagename;
+    private final String m_pagename;
 
     // ............
 

diff --git a/jspwiki-event/src/main/java/org/apache/wiki/event/WikiPageRenameEvent.java b/jspwiki-event/src/main/java/org/apache/wiki/event/WikiPageRenameEvent.java
@@ -34,7 +34,7 @@ public class WikiPageRenameEvent extends WikiPageEvent {
     /** Indicates a page rename event. This is based on events generated by {@link org.apache.wiki.content.PageRenamer}. */
     public static final int PAGE_RENAMED         = 28;
 
-    private String m_oldpagename;
+    private final String m_oldpagename;
 
     // ............
 

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/LinkCollector.java b/jspwiki-main/src/main/java/org/apache/wiki/LinkCollector.java
@@ -29,7 +29,7 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class LinkCollector implements StringTransmutator {
 
-    private List< String > m_items = new ArrayList<>();
+    private final List< String > m_items = new ArrayList<>();
 
     /**
      * Returns a List of Strings representing links.

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/WatchDog.java b/jspwiki-main/src/main/java/org/apache/wiki/WatchDog.java
@@ -46,14 +46,14 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public final class WatchDog {
 
-    private Watchable m_watchable;
+    private final Watchable m_watchable;
     private final Stack< State > m_stateStack = new Stack<>();
     private boolean m_enabled = true;
-    private Engine m_engine;
+    private final Engine m_engine;
 
     private static final Logger log = Logger.getLogger( WatchDog.class );
 
-    private static Map< Integer, WeakReference< WatchDog > > c_kennel = new ConcurrentHashMap<>();
+    private static final Map< Integer, WeakReference< WatchDog > > c_kennel = new ConcurrentHashMap<>();
     private static WikiBackgroundThread c_watcherThread;
 
     /**
@@ -399,7 +399,7 @@ protected long getExpiryTime() {
      *  This class wraps a Thread so that it can become Watchable.
      */
     private static class ThreadWrapper implements Watchable {
-        private Thread m_thread;
+        private final Thread m_thread;
 
         public ThreadWrapper( final Thread thread ) {
             m_thread = thread;

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/WikiEngine.java b/jspwiki-main/src/main/java/org/apache/wiki/WikiEngine.java
@@ -131,7 +131,7 @@ public class WikiEngine implements Engine {
     private boolean          m_isConfigured = false;
 
     /** Stores wikiengine attributes. */
-    private Map< String, Object > m_attributes = new ConcurrentHashMap<>();
+    private final Map< String, Object > m_attributes = new ConcurrentHashMap<>();
 
     /** Stores WikiEngine's associated managers. */
     protected Map< Class< ? >, Object > managers = new ConcurrentHashMap<>();

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/WikiPage.java b/jspwiki-main/src/main/java/org/apache/wiki/WikiPage.java
@@ -39,8 +39,8 @@ Licensed to the Apache Software Foundation (ASF) under one
 //        need to figure out the metadata lifecycle.
 public class WikiPage implements Page {
 
-    private       String     m_name;
-    private       Engine     m_engine;
+    private final String     m_name;
+    private final Engine     m_engine;
     private       String     m_wiki;
     private Date             m_lastModified;
     private long             m_fileSize = -1;

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/WikiSession.java b/jspwiki-main/src/main/java/org/apache/wiki/WikiSession.java
@@ -63,7 +63,7 @@ public final class WikiSession implements Session {
 
     private static final String ALL                   = "*";
 
-    private static ThreadLocal< Session > c_guestSession = new ThreadLocal<>();
+    private static final ThreadLocal< Session > c_guestSession = new ThreadLocal<>();
 
     private final Subject       m_subject             = new Subject();
 

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/ajax/AjaxUtil.java b/jspwiki-main/src/main/java/org/apache/wiki/ajax/AjaxUtil.java
@@ -31,7 +31,7 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class AjaxUtil extends HttpServlet {
 	private static final long serialVersionUID = 3170439306358345408L;
-	private static Gson gson = new Gson();
+	private static final Gson gson = new Gson();
 
 	/**
 	 * Uses Google Gson (https://code.google.com/p/google-gson/) to convert to JSON
@@ -65,15 +65,16 @@ public static String getNextPathPart( String path, String lastPart ) throws Serv
 		if( !lastPart.endsWith( "/" ) ) {
 			lastPart += "/";
 		}
+		final int lastPartLength =  lastPart.length();
 		int index = path.indexOf( lastPart );
 		if( index < 0 ) {
-			lastPart = lastPart.substring( 0, lastPart.length() - 1 );
+			lastPart = lastPart.substring( 0, lastPartLength - 1 );
 			index = path.indexOf( lastPart );
 			if( index < 0 ) {
 				throw new ServletException( "Invalid path provided " + path + " does not contain '" + lastPart + "'" );
 			}
 		}
-		path = path.substring( index + lastPart.length() );
+		path = path.substring( index + lastPartLength );
 		index = path.indexOf( "/" );
 		if( index == -1 ) {
 			index = path.indexOf( "#" );

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/attachment/Attachment.java b/jspwiki-main/src/main/java/org/apache/wiki/attachment/Attachment.java
@@ -29,7 +29,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class Attachment extends WikiPage implements org.apache.wiki.api.core.Attachment {
 
     private String m_fileName;
-    private String m_parentName;
+    private final String m_parentName;
     private boolean m_cacheable = true;
 
     /**

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/attachment/DefaultAttachmentManager.java b/jspwiki-main/src/main/java/org/apache/wiki/attachment/DefaultAttachmentManager.java
@@ -61,8 +61,8 @@ public class DefaultAttachmentManager implements AttachmentManager {
 
     private static final Logger log = Logger.getLogger( DefaultAttachmentManager.class );
     private AttachmentProvider m_provider;
-    private Engine m_engine;
-    private CacheManager m_cacheManager = CacheManager.getInstance();
+    private final Engine m_engine;
+    private final CacheManager m_cacheManager = CacheManager.getInstance();
     private Cache m_dynamicAttachments;
 
     /**

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultAuthenticationManager.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultAuthenticationManager.java
@@ -100,7 +100,7 @@ public class DefaultAuthenticationManager implements AuthenticationManager {
     private boolean m_storeIPAddress = true;
 
     /** Keeps a list of the usernames who have attempted a login recently. */
-    private TimedCounterList< String > m_lastLoginAttempts = new TimedCounterList<>();
+    private final TimedCounterList< String > m_lastLoginAttempts = new TimedCounterList<>();
 
     /**
      * {@inheritDoc}

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultAuthorizationManager.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultAuthorizationManager.java
@@ -81,7 +81,7 @@ public class DefaultAuthorizationManager implements AuthorizationManager {
     private Authorizer m_authorizer = null;
 
     /** Cache for storing ProtectionDomains used to evaluate the local policy. */
-    private Map< Principal, ProtectionDomain > m_cachedPds = new WeakHashMap<>();
+    private final Map< Principal, ProtectionDomain > m_cachedPds = new WeakHashMap<>();
 
     private Engine m_engine = null;
 

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultUserManager.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/DefaultUserManager.java
@@ -430,7 +430,7 @@ public Principal[] listWikiNames() throws WikiSecurityException {
      */
     public static final class JSONUserModule implements WikiAjaxServlet {
 
-		private volatile DefaultUserManager m_manager;
+		private final DefaultUserManager m_manager;
 
         /**
          *  Create a new JSONUserModule.

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/SecurityVerifier.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/SecurityVerifier.java
@@ -61,13 +61,13 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public final class SecurityVerifier {
 
-    private Engine                m_engine;
+    private final Engine                m_engine;
 
     private boolean               m_isSecurityPolicyConfigured = false;
 
     private Principal[]           m_policyPrincipals           = new Principal[0];
 
-    private Session               m_session;
+    private final Session               m_session;
 
     /** Message prefix for errors. */
     public static final String    ERROR                        = "Error.";
@@ -199,10 +199,13 @@ public String policyRoleTable()
         final String[] groupActions = new String[]
         { "view", "edit", null, null, "delete" };
 
+
+        final int rolesLength = roles.length;
+        final int pageActionsLength = pageActions.length;
         // Calculate column widths
         final String colWidth;
-        if( pageActions.length > 0 && roles.length > 0 ) {
-            colWidth = ( 67f / ( pageActions.length * roles.length ) ) + "%";
+        if( pageActionsLength > 0 && rolesLength > 0 ) {
+            colWidth = ( 67f / ( pageActionsLength * rolesLength ) ) + "%";
         } else {
             colWidth = "67%";
         }
@@ -212,20 +215,20 @@ public String policyRoleTable()
         // Write the table header
         s.append( "<table class=\"wikitable\" border=\"1\">\n" );
         s.append( "  <colgroup span=\"1\" width=\"33%\"/>\n" );
-        s.append( "  <colgroup span=\"" + pageActions.length * roles.length + "\" width=\"" + colWidth
+        s.append( "  <colgroup span=\"" + pageActionsLength * rolesLength + "\" width=\"" + colWidth
                 + "\" align=\"center\"/>\n" );
         s.append( "  <tr>\n" );
         s.append( "    <th rowspan=\"2\" valign=\"bottom\">Permission</th>\n" );
-        for( int i = 0; i < roles.length; i++ )
+        for( int i = 0; i < rolesLength; i++ )
         {
-            s.append( "    <th colspan=\"" + pageActions.length + "\" title=\"" + roles[i].getClass().getName() + "\">"
+            s.append( "    <th colspan=\"" + pageActionsLength + "\" title=\"" + roles[i].getClass().getName() + "\">"
                     + roles[i].getName() + "</th>\n" );
         }
         s.append( "  </tr>\n" );
 
         // Print a column for each role
         s.append( "  <tr>\n" );
-        for( int i = 0; i < roles.length; i++ )
+        for( int i = 0; i < rolesLength; i++ )
         {
             for( final String pageAction : pageActions )
             {
@@ -272,7 +275,7 @@ public String policyRoleTable()
             s.append( "    <td>WikiPermission \"" + wiki + "\",\"" + wikiPerm + "\"</td>\n" );
             for( final Principal role : roles ) {
                 final Permission permission = new WikiPermission( wiki, wikiPerm );
-                s.append( printPermissionTest( permission, role, pageActions.length ) );
+                s.append( printPermissionTest( permission, role, pageActionsLength ) );
             }
             s.append( "  </tr>\n" );
         }
@@ -283,7 +286,7 @@ public String policyRoleTable()
         for( final Principal role : roles )
         {
             final Permission permission = new AllPermission( wiki );
-            s.append( printPermissionTest( permission, role, pageActions.length ) );
+            s.append( printPermissionTest( permission, role, pageActionsLength ) );
         }
         s.append( "  </tr>\n" );
 

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/acl/AclEntryImpl.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/acl/AclEntryImpl.java
@@ -35,7 +35,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class AclEntryImpl implements AclEntry, Serializable {
 
     private static final long serialVersionUID = 1L;
-    private Vector< Permission > m_permissions = new Vector<>();
+    private final Vector< Permission > m_permissions = new Vector<>();
     private Principal m_principal;
 
     /**

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/authorize/XMLGroupDatabase.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/authorize/XMLGroupDatabase.java
@@ -102,13 +102,13 @@ public class XMLGroupDatabase implements GroupDatabase {
 
     private Document              m_dom            = null;
 
-    private DateFormat            m_defaultFormat  = DateFormat.getDateTimeInstance();
+    private final DateFormat            m_defaultFormat  = DateFormat.getDateTimeInstance();
 
     private File                  m_file           = null;
 
     private Engine                m_engine         = null;
 
-    private Map<String, Group>    m_groups         = new ConcurrentHashMap<>();
+    private final Map<String, Group>    m_groups         = new ConcurrentHashMap<>();
 
     /**
       * Looks up and deletes a {@link Group} from the group database. If the

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/GroupPermission.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/GroupPermission.java
@@ -168,14 +168,15 @@ public GroupPermission( String group, String actions )
         m_group = groupName;
 
         // Parse actions
-        String[] groupActions = actions.toLowerCase().split( ACTION_SEPARATOR );
+        final String[] groupActions = actions.toLowerCase().split( ACTION_SEPARATOR );
         Arrays.sort( groupActions, String.CASE_INSENSITIVE_ORDER );
         m_mask = createMask( actions );
         StringBuilder buffer = new StringBuilder();
-        for( int i = 0; i < groupActions.length; i++ )
+        final int groupActionsLength = groupActions.length;
+        for( int i = 0; i < groupActionsLength; i++ )
         {
             buffer.append( groupActions[i] );
-            if ( i < ( groupActions.length - 1 ) )
+            if ( i < ( groupActionsLength - 1 ) )
             {
                 buffer.append( ACTION_SEPARATOR );
             }
@@ -345,7 +346,7 @@ protected static int impliedMask( int mask )
      * @param actions the actions for this permission, separated by commas
      * @return the binary actions mask
      */
-    protected static int createMask( String actions )
+    protected static int createMask( final String actions )
     {
         if ( actions == null || actions.length() == 0 )
         {

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/PagePermission.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/PagePermission.java
@@ -190,11 +190,12 @@ public PagePermission( final String page, final String actions )
         final String[] pageActions = StringUtils.split( actions.toLowerCase(), ACTION_SEPARATOR );
         Arrays.sort( pageActions, String.CASE_INSENSITIVE_ORDER );
         m_mask = createMask( actions );
+        final  int pageActionsLength = pageActions.length;
         final StringBuilder buffer = new StringBuilder();
-        for( int i = 0; i < pageActions.length; i++ )
+        for( int i = 0; i < pageActionsLength; i++ )
         {
             buffer.append( pageActions[i] );
-            if ( i < ( pageActions.length - 1 ) )
+            if ( i < ( pageActionsLength - 1 ) )
             {
                 buffer.append( ACTION_SEPARATOR );
             }

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/PermissionFactory.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/permissions/PermissionFactory.java
@@ -41,7 +41,7 @@ private PermissionFactory() {}
      *  This is a WeakHashMap<Integer,PagePermission>, which stores the
      *  cached page permissions.
      */
-    private static WeakHashMap<Integer, PagePermission> c_cache = new WeakHashMap<>();
+    private static final WeakHashMap<Integer, PagePermission> c_cache = new WeakHashMap<>();
 
     /**
      *  Get a permission object for a WikiPage and a set of actions.

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/auth/user/DefaultUserProfile.java b/jspwiki-main/src/main/java/org/apache/wiki/auth/user/DefaultUserProfile.java
@@ -38,7 +38,7 @@ public final class DefaultUserProfile implements UserProfile {
     private static final String EMPTY_STRING = "";
     private static final String WHITESPACE = "\\s";
 
-    private Map< String, Serializable > attributes = new HashMap<>();
+    private final Map< String, Serializable > attributes = new HashMap<>();
     private Date created = null;
     private String email = null;
     private String fullname = null;

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/diff/ContextualDiffProvider.java b/jspwiki-main/src/main/java/org/apache/wiki/diff/ContextualDiffProvider.java
@@ -205,10 +205,10 @@ private String[] sequence( final String wikiText ) {
      * all necessary variables.
      */
     private final class ChangeMerger implements RevisionVisitor {
-        private StringBuffer m_sb;
+        private final StringBuffer m_sb;
 
         /** Keeping score of the original lines to process */
-        private int m_max;
+        private final int m_max;
 
         private int m_index = 0;
 
@@ -227,7 +227,7 @@ private final class ChangeMerger implements RevisionVisitor {
         private StringBuffer m_newBuf;
 
         /** Reference to the source string array */
-        private String[] m_origStrings;
+        private final String[] m_origStrings;
 
         private ChangeMerger( final StringBuffer sb, final String[] origStrings, final int max ) {
             m_sb = sb;

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/diff/ExternalDiffProvider.java b/jspwiki-main/src/main/java/org/apache/wiki/diff/ExternalDiffProvider.java
@@ -62,7 +62,7 @@ public class ExternalDiffProvider implements DiffProvider {
     //the external program generates a format suitible for the colorization code of the
     //TraditionalDiffProvider, currently set to true for legacy compatibility.
     //I don't think this 'feature' ever worked right, did it?...
-    private boolean m_traditionalColorization = true;
+    private final boolean m_traditionalColorization = true;
 
     /**
      *  Creates a new ExternalDiffProvider.

diff --git a/jspwiki-main/src/main/java/org/apache/wiki/diff/TraditionalDiffProvider.java b/jspwiki-main/src/main/java/org/apache/wiki/diff/TraditionalDiffProvider.java
@@ -122,9 +122,9 @@ public String makeDiffHtml( final Context ctx, final String p1, final String p2
 
     private static final class RevisionPrint implements RevisionVisitor {
 
-        private StringBuffer m_result;
-        private Context  m_context;
-        private ResourceBundle m_rb;
+        private final StringBuffer m_result;
+        private final Context  m_context;
+        private final ResourceBundle m_rb;
 
         private RevisionPrint( final Context ctx, final StringBuffer sb ) {
             m_result = sb;