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Better bytes-to-String method for verbose output

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git-svn-id: https://zxing.googlecode.com/svn/trunk@491 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2008-06-27 19:19:18 +00:00
parent 0e311f40c9
commit 47e67ae145
1 changed files with 23 additions and 2 deletions
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25
zxingorg/src/com/google/zxing/web/DecodeServlet.java
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@ -60,7 +60,6 @@ import java.io.Writer;
import java.net.URI; import java.net.URI;
import java.net.URISyntaxException; import java.net.URISyntaxException;
import java.net.UnknownHostException; import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.Hashtable; import java.util.Hashtable;
import java.util.List; import java.util.List;
import java.util.Timer; import java.util.Timer;
@ -240,7 +239,7 @@ public final class DecodeServlet extends HttpServlet {
request.setAttribute("result", result); request.setAttribute("result", result);
byte[] rawBytes = result.getRawBytes(); byte[] rawBytes = result.getRawBytes();
if (rawBytes != null) { if (rawBytes != null) {
request.setAttribute("rawBytesString", Arrays.toString(rawBytes)); request.setAttribute("rawBytesString", arrayToString(rawBytes));
} else { } else {
request.setAttribute("rawBytesString", "(Not applicable)"); request.setAttribute("rawBytesString", "(Not applicable)");
} }
@ -261,6 +260,28 @@ public final class DecodeServlet extends HttpServlet {
return true; return true;
} }
private static String arrayToString(byte[] bytes) {
int length = bytes.length;
StringBuilder result = new StringBuilder(length << 2);
int i = 0;
while (i < length) {
int max = Math.min(i + 8, length);
for (int j = i; j < max; j++) {
int value = bytes[j] & 0xFF;
result.append(Integer.toHexString(value / 16));
result.append(Integer.toHexString(value % 16));
result.append(' ');
}
result.append('\n');
i += 8;
}
for (int j = i - 8; j < length; j++) {
result.append(Integer.toHexString(bytes[j] & 0xFF));
result.append(' ');
}
return result.toString();
}
@Override @Override
public void destroy() { public void destroy() {
log.config("DecodeServlet shutting down..."); log.config("DecodeServlet shutting down...");