*) Adding additional functions to serverByteBuffer so that it

can be used instead of a ByteArrayOutputStream
*) Using a serverByteBuffer for lineBuffering in class httpc
   instead of a ByteArrayOutputStream

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@35 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/de/anomic/http/httpc.java

@@ -87,8 +87,8 @@ public final class httpc {
     private long handle;
     
     // output and input streams for client control connection
-    public PushbackInputStream clientInput = null;
-    public OutputStream clientOutput = null;
+    PushbackInputStream clientInput = null;
+    OutputStream clientOutput = null;
 
     private boolean remoteProxyUse = false;
     private String  savedRemoteHost = null;
@@ -104,8 +104,19 @@ public final class httpc {
         java.security.Security.setProperty("networkaddress.cache.negative.ttl" , "0");
     }
     
+    /**
+     * A Object Pool containing all pooled httpc-objects.
+     * @see httpcPool
+     */
     private static final httpcPool theHttpcPool;
+    
+    /**
+     * Indicates if the current object was removed from pool because the maximum limit
+     * was exceeded.
+     */
     boolean removedFromPool = false;
+    
+    // Configuring the httpc object pool
     static {
         // implementation of session thread pool
         GenericObjectPool.Config config = new GenericObjectPool.Config();
@@ -125,16 +136,25 @@ public final class httpc {
         theHttpcPool = new httpcPool(new httpcFactory(),config);         
     }
 
-    private static final ByteArrayOutputStream readLineBuffer = new ByteArrayOutputStream();
+    /**
+     * A reusable readline buffer
+     * @see serverByteBuffer
+     */
+    final serverByteBuffer readLineBuffer = new serverByteBuffer();
     
-    public static httpc getInstance(String server, int port, int timeout, boolean ssl,
-            String remoteProxyHost,  int remoteProxyPort) throws IOException {
+    public static httpc getInstance(
+            String server, 
+            int port, 
+            int timeout, 
+            boolean ssl,
+            String remoteProxyHost,  
+            int remoteProxyPort
+        ) throws IOException {
         
         httpc newHttpc;
         try {
             // fetching a new httpc from the object pool
             newHttpc = (httpc) httpc.theHttpcPool.borrowObject();            
-            
         } catch (Exception e) {
             throw new IOException("Unable to initialize a new httpc. " + e.getMessage());
         }            

source/de/anomic/http/httpd.java

@@ -647,18 +647,19 @@ public final class httpd implements serverHandler {
     	// we replace all "+" by spaces
     	// and resolve %-escapes with two-digit hex attributes
     	int pos = 0;
-	String result = "";
+    	StringBuffer result = new StringBuffer();
     	while (pos < s.length()) {
     	    if (s.charAt(pos) == '+') {
-		result += " "; pos++;
+                result.append(" "); 
+                pos++;
     	    } else if (s.charAt(pos) == '%') {
-		result += (char) Integer.parseInt(s.substring(pos + 1, pos + 3), 16);
+        		result.append((char) Integer.parseInt(s.substring(pos + 1, pos + 3), 16));
         		pos += 3;
     	    } else {
-		result += s.charAt(pos++);
+                result.append(s.charAt(pos++));
     	    }
     	}
-	return result;
+    	return result.toString();
     }
 
 

source/de/anomic/server/serverByteBuffer.java

@@ -59,6 +59,12 @@ public final class serverByteBuffer extends OutputStream {
 	offset = 0;
     }
 
+    public serverByteBuffer(int initLength) {
+        this.buffer = new byte[initLength];
+        this.length = 0;
+        this.offset = 0;
+    }        
+    
     public serverByteBuffer(byte[] bb) {
 	buffer = bb;
 	length = bb.length;
@@ -292,4 +298,15 @@ public final class serverByteBuffer extends OutputStream {
         return true;
     }
 
+    public void reset() {
+        this.length = 0;
+        this.offset = 0;
+    }        
+    
+    public byte toByteArray()[] {
+        byte newbuf[] = new byte[this.length];
+        System.arraycopy(this.buffer, 0, newbuf, 0, this.length);
+        return newbuf;
+    }    
+        
 }

source/de/anomic/server/serverCore.java

@@ -504,7 +504,7 @@ public final class serverCore extends serverAbstractThread implements serverThre
     	public  PushbackInputStream in;    // on control input stream
     	public  OutputStream out;          // on control output stream, autoflush
 
-        private final ByteArrayOutputStream readLineBuffer = new ByteArrayOutputStream(256);
+        private final serverByteBuffer readLineBuffer = new serverByteBuffer(256);
     	
     	public Session(ThreadGroup theThreadGroup) {
             super(theThreadGroup,"Session");
@@ -785,7 +785,7 @@ public final class serverCore extends serverAbstractThread implements serverThre
 	
     }
 
-    public static byte[] receive(PushbackInputStream pbis, ByteArrayOutputStream readLineBuffer, long timeout, int maxSize, boolean logerr) {
+    public static byte[] receive(PushbackInputStream pbis, serverByteBuffer readLineBuffer, long timeout, int maxSize, boolean logerr) {
 
         // this is essentially a readln on a PushbackInputStream
         int bufferSize = 0;
@@ -793,7 +793,7 @@ public final class serverCore extends serverAbstractThread implements serverThre
 
         // reuse an existing linebuffer or create a new one ...
         if (readLineBuffer == null) {
-            readLineBuffer = new ByteArrayOutputStream(256);
+            readLineBuffer = new serverByteBuffer(256);
         } else {
             readLineBuffer.reset();
         }