Fixed thread name consistency for improved monitoring.

Some tasks were modifying the current thread name without restoring it
once finished as it is effectively done elsewhere.

source/net/yacy/cora/protocol/http/HTTPClient.java

@@ -677,6 +677,7 @@ public class HTTPClient {
 	        assert !hrequest.expectContinue();
 	    }
 
+	    final String initialThreadName = Thread.currentThread().getName();
 	    Thread.currentThread().setName("HTTPClient-" + httpUriRequest.getURI());
         final long time = System.currentTimeMillis();
 	    try {
@@ -711,6 +712,9 @@ public class HTTPClient {
             throw new IOException("Client can't execute: "
             		+ (e.getCause() == null ? e.getMessage() : e.getCause().getMessage())
             		+ " duration=" + Long.toString(System.currentTimeMillis() - time) + " for url " + httpUriRequest.getURI().toString());
+        } finally {
+        	/* Restore the thread initial name */
+        	Thread.currentThread().setName(initialThreadName);
         }
     }
 

source/net/yacy/document/Condenser.java

@@ -71,7 +71,9 @@ public final class Condenser extends Tokenizer {
             ) {
         super(document.dc_source(), indexText ? document.getTextString() : "", meaningLib, doAutotagging, scraper);
         
+        final String initialThreadName = Thread.currentThread().getName();
         Thread.currentThread().setName("condenser-" + document.dc_identifier()); // for debugging
+        
         // if addMedia == true, then all the media links are also parsed and added to the words
         // added media words are flagged with the appropriate media flag
         this.dates_in_content = new LinkedHashSet<Date>();
@@ -208,6 +210,9 @@ public final class Condenser extends Tokenizer {
         this.fuzzy_signature = EnhancedTextProfileSignature.getSignatureLong(fuzzySignatureFactory);
         this.fuzzy_signature_text = fuzzySignatureFactory.getSignatureText().toString();
         this.exact_signature = EnhancedTextProfileSignature.getSignatureLong(text);
+
+        /* Restore the current thread initial name */
+        Thread.currentThread().setName(initialThreadName);
     }
 
     private void insertTextToWords(

source/net/yacy/peers/operation/yacyRelease.java

@@ -231,11 +231,14 @@ public final class yacyRelease extends yacyVersion {
         // parsing the content and filtering+parsing links
         // returns the version info if successful, null otherwise
         Document scraper;
+        final String initialThreadName = Thread.currentThread().getName();
         try {
             final DigestURL uri = location.getLocationURL();
             Thread.currentThread().setName("allReleaseFrom - host " + uri.getHost()); // makes it more easy to see which release blocks process in thread dump
             scraper = Switchboard.getSwitchboard().loader.loadDocument(uri, CacheStrategy.NOCACHE, null, ClientIdentification.yacyInternetCrawlerAgent);
         } catch (final IOException e) {
+        	/* Restore the thread initial name */
+        	Thread.currentThread().setName(initialThreadName);
             return null;
         }
 
@@ -260,6 +263,9 @@ public final class yacyRelease extends yacyVersion {
             }
         }
         Switchboard.getSwitchboard().setConfig("update.time.lookup", System.currentTimeMillis());
+        
+    	/* Restore the thread initial name */
+    	Thread.currentThread().setName(initialThreadName);
         return new DevAndMainVersions(devReleases, mainReleases);
     }