try to fix connection problem, possible cause for wrong junior status and non-passive passive peers:

the YaCy client treats disconnections during data transmissions as error and discards all data transmitted so far
this did not happen so far until I removed a delay time at the end of the daemon session which prevented this case.
To fix this problem, disconnections during transmissions are not treated as error now, which means that end-of-transmissions
with sudden disconnections are not a cause for peer diconnections any more. To be nice to non-updated peers, the sleep time
at the end of server sessions is also re-enabled.


git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4105 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/http/httpc.java

@@ -41,6 +41,7 @@
 package de.anomic.http;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -1638,35 +1639,43 @@ public final class httpc {
         /**
         * This method writes the input stream to either another output stream
         * or a file or both.
+        * In case that an exception occurrs, the stream reading is just teminated
+        * and content received so far is returned
         *
         * @param procOS
         * @param file
-        * @throws IOException
         */
-        public void writeContent(Object procOS, File file) throws IOException {
+        public void writeContent(Object procOS, File file) {
             // this writes the input stream to either another output stream or
             // a file or both.
             FileOutputStream bufferOS = null;
+            if (file != null) try {
+                bufferOS = new FileOutputStream(file);
+            } catch (FileNotFoundException e) {
+                file = null;
+            }
             try {
-                if (file != null) bufferOS = new FileOutputStream(file);
+                InputStream is = this.getContentInputStream();
                 if (procOS == null) {
-                	serverFileUtils.writeX(this.getContentInputStream(), null, bufferOS);
+                    serverFileUtils.writeX(is, null, bufferOS);
                 } else if (procOS instanceof OutputStream) {
-                    serverFileUtils.writeX(this.getContentInputStream(), (OutputStream) procOS, bufferOS);
+                    serverFileUtils.writeX(is, (OutputStream) procOS, bufferOS);
                     //writeContentX(httpc.this.clientInput, this.gzip, this.responseHeader.contentLength(), procOS, bufferOS);
                 } else if (procOS instanceof Writer) {
                     String charSet = this.responseHeader.getCharacterEncoding();
                     if (charSet == null) charSet = httpHeader.DEFAULT_CHARSET;
-                    serverFileUtils.writeX(this.getContentInputStream(), charSet, (Writer)procOS, bufferOS, charSet);                
+                    serverFileUtils.writeX(is, charSet, (Writer) procOS, bufferOS, charSet);                
                 } else {
                     throw new IllegalArgumentException("Invalid procOS object type '" + procOS.getClass().getName() + "'");
                 }
-            } finally {
+            } catch (IOException e) {}
-                if (bufferOS != null) {
+            
-                	bufferOS.flush();
+            if (bufferOS != null) {
+                try {
+                    bufferOS.flush();
                     bufferOS.close();
-                    if (file.length() == 0) file.delete();
+                } catch (IOException e) {}
-                }
+                if (file.length() == 0) file.delete();
             }
         }
         

source/de/anomic/http/httpdFileHandler.java

@@ -900,7 +900,7 @@ public final class httpdFileHandler {
             try {out.flush();}catch (Exception e) {}
             if (((String)requestHeader.get(httpHeader.CONNECTION, "close")).indexOf("keep-alive") == -1) {
                 // wait a little time until everything closes so that clients can read from the streams/sockets
-                //try {Thread.sleep(200);} catch (InterruptedException e) {} // FIXME: is this necessary?
+                try {Thread.sleep(50);} catch (InterruptedException e) {} // FIXME: is this necessary?
             }
         }
     }

source/de/anomic/server/serverFileUtils.java

@@ -111,40 +111,46 @@ public final class serverFileUtils {
         return total;
     }
     
-    public static void writeX(InputStream source, OutputStream procOS, OutputStream bufferOS) throws IOException {
+    public static void writeX(InputStream source, OutputStream procOS, OutputStream bufferOS) {
         byte[] buffer = new byte[2048];
         int l;
 
-        while ((l = source.read(buffer, 0, buffer.length)) >= 0) {
+        while (true) try {
+            l = source.read(buffer, 0, buffer.length);
+            if (l <= 0) break;
             if (procOS != null) procOS.write(buffer, 0, l);
             if (bufferOS != null) bufferOS.write(buffer, 0, l);
-        }
+        } catch (IOException e) {break;}
         
         // flush the streams
-        if (procOS != null) procOS.flush();
+        if (procOS != null) try { procOS.flush(); } catch (IOException e) {}
-        if (bufferOS != null) bufferOS.flush();
+        if (bufferOS != null) try { bufferOS.flush(); } catch (IOException e) {}
         buffer = null;
     }
     
-    public static void writeX(Reader source, Writer procOS, Writer bufferOS) throws IOException {
+    public static void writeX(Reader source, Writer procOS, Writer bufferOS) {
         char[] buffer = new char[2048];
         int l;
 
-        while ((l = source.read(buffer, 0, buffer.length)) >= 0) {
+        while (true) try{
+            l = source.read(buffer, 0, buffer.length);
+            if (l <= 0) break;
             if (procOS != null) procOS.write(buffer, 0, l);
             if (bufferOS != null) bufferOS.write(buffer, 0, l);
-        }
+        } catch (IOException e) {break;}
         
         // flush the streams
-        if (procOS != null) procOS.flush();
+        if (procOS != null) try { procOS.flush(); } catch (IOException e) {}
-        if (bufferOS != null) bufferOS.flush();
+        if (bufferOS != null) try { bufferOS.flush(); } catch (IOException e) {}
         buffer = null;
     }      
     
-    public static void writeX(InputStream source, String inputCharset, Writer procOS, OutputStream bufferOS, String outputCharset) throws IOException {
+    public static void writeX(InputStream source, String inputCharset, Writer procOS, OutputStream bufferOS, String outputCharset) {
-        InputStreamReader sourceReader = new InputStreamReader(source,inputCharset);
+        try {
-        OutputStreamWriter bufferOSWriter = (bufferOS==null)?null:new OutputStreamWriter(bufferOS,outputCharset);
+            InputStreamReader sourceReader = new InputStreamReader(source, inputCharset);
-        writeX(sourceReader,procOS,bufferOSWriter);
+            OutputStreamWriter bufferOSWriter = (bufferOS == null) ? null : new OutputStreamWriter(bufferOS,outputCharset);
+            writeX(sourceReader, procOS, bufferOSWriter);
+        } catch (IOException e) {}
     }    
 
     

source/de/anomic/yacy/yacyCore.java

@@ -298,7 +298,6 @@ public class yacyCore {
     protected class publishThread extends Thread {
         private int added;
         private yacySeed seed;
-        private Exception error;
         private final serverSemaphore sync;
         private final List syncList;
 
@@ -312,7 +311,6 @@ public class yacyCore {
 
             this.seed = seed;
             this.added = 0;
-            this.error = null;
         }
 
         public final void run() {
@@ -333,7 +331,6 @@ public class yacyCore {
                 }
             } catch (Exception e) {
                 log.logSevere("publishThread: error with target seed " + seed.toString() + ": " + e.getMessage(), e);
-                this.error = e;
             } finally {
                 this.syncList.add(this);
                 this.sync.V();