replaced StringBuffer with StringBuilder

source/net/yacy/cora/document/UTF8.java

@@ -219,7 +219,7 @@ public class UTF8 implements Comparator<String> {
     public static String decodeURL(final String s) {
         boolean needToChange = false;
         final int numChars = s.length();
-        final StringBuffer sb = new StringBuffer(numChars > 500 ? numChars / 2 : numChars);
+        final StringBuilder sb = new StringBuilder(numChars > 500 ? numChars / 2 : numChars);
         int i = 0;
         char c;
         byte[] bytes = null;

source/net/yacy/cora/language/phonetic/DoubleMetaphone.java

@@ -1031,8 +1031,8 @@ public class DoubleMetaphone implements StringEncoder {
      */
     public class DoubleMetaphoneResult {
 
-        private final StringBuffer primary = new StringBuffer(getMaxCodeLen());
-        private final StringBuffer alternate = new StringBuffer(getMaxCodeLen());
+        private final StringBuilder primary = new StringBuilder(getMaxCodeLen());
+        private final StringBuilder alternate = new StringBuilder(getMaxCodeLen());
         private final int maxLength;
 
         public DoubleMetaphoneResult(int maxLength) {

source/net/yacy/cora/language/phonetic/Metaphone.java

@@ -91,8 +91,8 @@ public class Metaphone implements StringEncoder {
       
         char[] inwd = txt.toUpperCase(java.util.Locale.ENGLISH).toCharArray() ;
       
-        StringBuffer local = new StringBuffer(40); // manipulate
-        StringBuffer code = new StringBuffer(10) ; //   output
+        StringBuilder local = new StringBuilder(40); // manipulate
+        StringBuilder code = new StringBuilder(10) ; //   output
         // handle initial 2 characters exceptions
         switch(inwd[0]) {
         case 'K' : 
@@ -314,11 +314,11 @@ public class Metaphone implements StringEncoder {
         return code.toString();
     }
 
-    private boolean isVowel(StringBuffer string, int index) {
+    private boolean isVowel(StringBuilder string, int index) {
         return VOWELS.indexOf(string.charAt(index)) >= 0;
     }
 
-    private boolean isPreviousChar(StringBuffer string, int index, char c) {
+    private boolean isPreviousChar(StringBuilder string, int index, char c) {
         boolean matches = false;
         if( index > 0 &&
             index < string.length() ) {
@@ -327,7 +327,7 @@ public class Metaphone implements StringEncoder {
         return matches;
     }
 
-    private boolean isNextChar(StringBuffer string, int index, char c) {
+    private boolean isNextChar(StringBuilder string, int index, char c) {
         boolean matches = false;
         if( index >= 0 &&
             index < string.length() - 1 ) {
@@ -336,7 +336,7 @@ public class Metaphone implements StringEncoder {
         return matches;
     }
 
-    private boolean regionMatch(StringBuffer string, int index, String test) {
+    private boolean regionMatch(StringBuilder string, int index, String test) {
         boolean matches = false;
         if( index >= 0 &&
             (index + test.length() - 1) < string.length() ) {

source/net/yacy/interaction/AugmentHtmlStream.java

@@ -85,7 +85,7 @@ public class AugmentHtmlStream {
 
     }
 
-    public static StringBuffer process(StringBuffer data, DigestURI url, RequestHeader requestHeader) {
+    public static StringBuilder process(StringBuilder data, DigestURI url, RequestHeader requestHeader) {
 
         String action =  requestHeader.get("YACYACTION");
         requestHeader.remove("YACYACTION");
@@ -151,7 +151,7 @@ public class AugmentHtmlStream {
 
 
         if (augmented) {
-            return (new StringBuffer (Doc));
+            return (new StringBuilder(Doc));
         }
         return (data);
     }

source/net/yacy/kelondro/logging/SimpleLogFormatter.java

@@ -66,7 +66,7 @@ public final class SimpleLogFormatter extends SimpleFormatter {
     // e.g. 2005/05/25 11:22:53
     private final SimpleDateFormat formatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.US);
 
-    private final StringBuffer buffer = new StringBuffer(80);
+    private final StringBuffer buffer = new StringBuffer(80); // we use StringBuffer on purpose instead of StringBuilder because of concurrency issues
 
     public SimpleLogFormatter() {
         super();

source/net/yacy/server/http/AugmentedHtmlStream.java

@@ -43,14 +43,14 @@ public class AugmentedHtmlStream extends FilterOutputStream {
 
 	@Override
     public void close() throws IOException {
-		StringBuffer b = new StringBuffer(this.buffer.toString(this.charset.name()));
+	    StringBuilder b = new StringBuilder(this.buffer.toString(this.charset.name()));
 		b = process(b);
 		this.out.write(b.toString());
 		this.out.close();
 	}
 
-    public StringBuffer process(StringBuffer data) {
-        if (this.urls.contains("currentyacypeer/")) {
+    public StringBuilder process(StringBuilder data) {
+        if (this.urls.contains("StringBuilder/")) {
             return data;
         }
         return AugmentHtmlStream.process(data, this.url, this.requestHeader);

source/net/yacy/upnp/ServicesEventing.java

@@ -148,7 +148,7 @@ public class ServicesEventing implements Runnable {
         unRegister( service, handler );
       }
       
-      StringBuffer packet = new StringBuffer( 64 );
+      StringBuilder packet = new StringBuilder( 64 );
       packet.append( "SUBSCRIBE " ).append( eventingLoc.getFile() ).append( " HTTP/1.1\r\n" );
       packet.append( "HOST: " ).append( eventingLoc.getHost() ).append( ":" ).append( eventingLoc.getPort() ).append( "\r\n" );
       packet.append( "CALLBACK: <http://" ).append( InetAddress.getLocalHost().getHostAddress() ).append( ":" ).append( daemonPort ).append( "" ).append( eventingLoc.getFile() ).append( ">\r\n" );
@@ -265,7 +265,7 @@ public class ServicesEventing implements Runnable {
           stopServicesEventingThread(); 
         }
         
-        StringBuffer packet = new StringBuffer( 64 );
+        StringBuilder packet = new StringBuilder( 64 );
         packet.append( "UNSUBSCRIBE  " ).append( eventingLoc.getFile() ).append( " HTTP/1.1\r\n" );
         packet.append( "HOST: " ).append( eventingLoc.getHost() ).append( ":" ).append( eventingLoc.getPort() ).append( "\r\n" );
         packet.append( "SID: " ).append( sub.sub.getSID() ).append( "\r\n\r\n" );

source/net/yacy/upnp/messages/ActionMessage.java

@@ -108,7 +108,7 @@ public class ActionMessage {
     ActionResponse rtrVal = null;
     UPNPResponseException upnpEx = null;
     IOException ioEx = null;
-    StringBuffer body = new StringBuffer( 256 );
+    StringBuilder body = new StringBuilder( 256 );
     
     body.append( "<?xml version=\"1.0\"?>\r\n" );
     body.append( "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"" );

source/net/yacy/upnp/messages/StateVariableMessage.java

@@ -89,7 +89,7 @@ public class StateVariableMessage {
     StateVariableResponse rtrVal = null;
     UPNPResponseException upnpEx = null;
     IOException ioEx = null;
-    StringBuffer body = new StringBuffer( 256 );
+    StringBuilder body = new StringBuilder( 256 );
     
     body.append( "<?xml version=\"1.0\"?>\r\n" );
     body.append( "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\"" );