From 4de67b497e0e229fe4a42f66f833640b6e50fd5a Mon Sep 17 00:00:00 2001
From: Joel Kronqvist <joel.kronqvist@iki.fi>
Date: Sun, 17 Nov 2024 13:45:44 +0200
Subject: Moved the project to an IDEA project & wrote part of README.txt

---
 src/scalevalapokalypsi/utils/utils.scala | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 src/scalevalapokalypsi/utils/utils.scala

(limited to 'src/scalevalapokalypsi/utils')

diff --git a/src/scalevalapokalypsi/utils/utils.scala b/src/scalevalapokalypsi/utils/utils.scala
new file mode 100644
index 0000000..b1bac4d
--- /dev/null
+++ b/src/scalevalapokalypsi/utils/utils.scala
@@ -0,0 +1,28 @@
+package scalevalapokalypsi.utils
+
+import java.io.InputStream
+
+/** Converts this string to an array of bytes (probably for transmission).
+  *
+  * @param str the string to convert
+  * @return an array of bytes representing the string in UTF8.
+  */
+def stringToByteArray(str: String): Array[Byte] =
+	str.toVector.map(_.toByte).toArray
+
+/** Reads n characters from the given InputStream blockingly.
+  *
+  * @param input the InputStream to read from
+  * @param n     the number of bytes to read
+  * @return      The read result, or None in case of failure
+  */
+def getNCharsFromSocket(input: InputStream, n: Int): Option[String] =
+	val buffer: Array[Byte] = Array.ofDim(n)
+	var i = 0
+	var failed = false
+	while i < n && !failed do
+		val res = input.read(buffer, i, n - i)
+		if res < 0 then failed = true
+		i += res
+	// TODO: better error handling
+	if failed then None else Some(String(buffer))
-- 
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