svn commit: r189904 - /directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java

[el...@apache.org]

Author: elecharny
Date: Thu Jun  9 23:18:39 2005
New Revision: 189904

URL: http://svn.apache.org/viewcvs?rev=189904&view=rev
Log:
Changed the class to allocate the exact number of chars necessary to store the string. 
The previous implementation allocated chunks of 16 chars.

Modified:
    directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java

Modified: directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java
URL: http://svn.apache.org/viewcvs/directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java?rev=189904&r1=189903&r2=189904&view=diff
==============================================================================
--- directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java (original)
+++ directory/sandbox/trunk/asn1-new-codec/src/java/org/apache/asn1/util/MutableString.java Thu Jun  9 23:18:39 2005
@@ -37,11 +37,11 @@
     public transient static final boolean STREAMED = true;
     
     /**
-     * Creates a MutableString, with a default length of 16.
+     * Creates a MutableString.
      */
     public MutableString()
     {
-        string = new char[16];
+        string = null;
         length = 0;
     }
     
@@ -68,18 +68,12 @@
     /**
      * Creates a MutableString with a value. The stored string
      * is coded in Unicode, so the bytes *MUST* be valid ! 
-     * 
-     * The char array size will be equal to 16, 32, 64 ... depending on
-     * the string length to store. (some memory is lost, but this is the 
-     * price to pay for a performant pool mechanism : we are not going to 
-     * create a pool for each size !)
-     * 
      * @param bytes The value to store.
      */
     public MutableString(byte[] bytes)
     {
         length = StringUtils.countChars(bytes);
-        string = new char[16 * (1 + length / 16)];
+        string = new char[length];
         int pos = 0;
         
         for ( int i = 0; i < length; i++ )
@@ -98,6 +92,10 @@
     public void setData(byte[] bytes)
     {
         length = StringUtils.countChars(bytes);
+        
+        string = new char[bytes.length];
+        this.length = bytes.length;
+        
         int pos = 0;
         
         for ( int i = 0; i < length; i++ )
@@ -112,6 +110,6 @@
      */
     public String toString()
     {
-        return new String(string, 0, length);
+        return length == 0 ? "" : new String(string, 0, length);
     }
 }