Adding Utilities and shifting to use it.

api/src/main/java/io/github/applecommander/applesingle/Utilities.java

@@ -0,0 +1,31 @@
+package io.github.applecommander.applesingle;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+public class Utilities {
+	private Utilities() { /* Prevent construction */ }
+	
+	/** Utility method to read all bytes from an InputStream. */
+	public static byte[] toByteArray(InputStream inputStream) throws IOException {
+		ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+		while (true) {
+			byte[] buf = new byte[1024];
+			int len = inputStream.read(buf);
+			if (len == -1) break;
+			outputStream.write(buf, 0, len);
+		}
+		outputStream.flush();
+		return outputStream.toByteArray();
+	}
+
+	/** Convert bytes in an Entry to a 7-bit ASCII string.  Emphasis on 7-bit in case Apple II high bit is along for the ride. */
+	public static String entryToAsciiString(Entry entry) {
+		byte[] data = entry.getData();
+		for (int i=0; i<data.length; i++) {
+			data[i] = (byte)(data[i] & 0x7f);
+		}
+		return new String(data);
+	}
+}

tools/asu/src/main/java/io/github/applecommander/applesingle/tools/asu/CreateCommand.java

@@ -9,6 +9,7 @@ import java.util.Optional;
 import java.util.concurrent.Callable;
 
 import io.github.applecommander.applesingle.AppleSingle;
+import io.github.applecommander.applesingle.Utilities;
 import picocli.CommandLine.Command;
 import picocli.CommandLine.Option;
 import picocli.CommandLine.Parameters;
@@ -99,7 +100,7 @@ public class CreateCommand implements Callable<Void> {
 	public byte[] prepDataFork() throws IOException {
 		byte[] dataFork = null;
 		if (stdinForkType == ForkType.data) {
-			dataFork = AppleSingle.toByteArray(System.in);
+			dataFork = Utilities.toByteArray(System.in);
 		} else if (dataForkFile != null) {
 			dataFork = Files.readAllBytes(dataForkFile);
 		}
@@ -116,7 +117,7 @@ public class CreateCommand implements Callable<Void> {
 	public byte[] prepResourceFork() throws IOException {
 		byte[] resourceFork = null;
 		if (stdinForkType == ForkType.resource) {
-			resourceFork = AppleSingle.toByteArray(System.in);
+			resourceFork = Utilities.toByteArray(System.in);
 		} else if (resourceForkFile != null) {
 			resourceFork = Files.readAllBytes(resourceForkFile);
 		}