add toUsAsciiBytes to IString for best performance when converting into

byte array

Author: lecousin

net.lecousin.core/src/main/java/net/lecousin/framework/util/IString.java

@@ -44,6 +44,19 @@ public interface IString extends CharSequence {
 	/** Fill the given character array with the content of this string. */
 	public default int fill(char[] chars) { return fill(chars, 0); }
 
+	/** Same as with char but with bytes, all characters are directly converted into bytes without CharsetEncoder. */
+	public int fillUsAsciiBytes(byte[] bytes, int start);
+
+	/** Same as with char but with bytes, all characters are directly converted into bytes without CharsetEncoder. */
+	public default int fillUsAsciiBytes(byte[] bytes) { return fillUsAsciiBytes(bytes, 0); }
+
+	/** Same as with char but with bytes, all characters are directly converted into bytes without CharsetEncoder. */
+	public default byte[] toUsAsciiBytes() {
+		byte[] bytes = new byte[length()];
+		fillUsAsciiBytes(bytes, 0);
+		return bytes;
+	}
+	
 	/** Remove spaces characters at the beginning of this string. */
 	public IString trimBeginning();
 

net.lecousin.core/src/main/java/net/lecousin/framework/util/UnprotectedString.java

@@ -279,6 +279,14 @@ public int fill(char[] chars, int start) {
 		return pos;
 	}
 
+	@Override
+	public int fillUsAsciiBytes(byte[] bytes, int start) {
+		int pos = 0;
+		for (int i = this.start; i <= this.end; ++i)
+			bytes[start + (pos++)] = (byte)this.chars[i];
+		return pos;
+	}
+	
 	@Override
 	public List<UnprotectedString> split(char sep) {
 		LinkedList<UnprotectedString> list = new LinkedList<>();

net.lecousin.core/src/main/java/net/lecousin/framework/util/UnprotectedStringBuffer.java

@@ -373,6 +373,15 @@ public int fill(char[] chars, int start) {
 		return pos;
 	}
 
+	@Override
+	public int fillUsAsciiBytes(byte[] bytes, int start) {
+		if (strings == null) return 0;
+		int pos = 0;
+		for (int i = 0; i <= lastUsed; ++i)
+			pos += strings[i].fillUsAsciiBytes(bytes, start + pos);
+		return pos;
+	}
+	
 	@Override
 	public UnprotectedStringBuffer trimBeginning() {
 		if (strings != null)