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Optimize SslHandler's detection of supressable exceptions, so it will not break on different OS's or jdk impls. See #79

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This commit is contained in:
norman 2012-07-05 09:37:26 +02:00
parent db09c421d9
commit b9781c968c
1 changed files with 12 additions and 3 deletions
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15
handler/src/main/java/io/netty/handler/ssl/SslHandler.java
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@ -156,6 +156,9 @@ public class SslHandler
private static final Pattern IGNORABLE_CLASS_IN_STACK = Pattern.compile(
"^.*(Socket|DatagramChannel|SctpChannel).*$");
private static final Pattern IGNORABLE_ERROR_MESSAGE = Pattern.compile(
"^.*(?:connection.*reset|connection.*closed|broken.*pipe).*$",
Pattern.CASE_INSENSITIVE);
private volatile ChannelHandlerContext ctx;
private final SSLEngine engine;
@ -474,6 +477,14 @@ public class SslHandler
*/
private boolean ignoreException(Throwable t) {
if (!(t instanceof SSLException) && t instanceof IOException && engine.isOutboundDone()) {
String message = String.valueOf(t.getMessage()).toLowerCase();
// first try to match connection reset / broke peer based on the regex. This is the fastest way
// but may fail on different jdk impls or OS's
if (IGNORABLE_ERROR_MESSAGE.matcher(message).matches()) {
return true;
}
// Inspect the StackTraceElements to see if it was a connection reset / broken pipe or not
StackTraceElement[] elements = t.getStackTrace();
@ -504,9 +515,7 @@ public class SslHandler
Class<?> clazz = getClass().getClassLoader().loadClass(classname);
if (SocketChannel.class.isAssignableFrom(clazz)
|| DatagramChannel.class.isAssignableFrom(clazz)
|| Socket.class.isAssignableFrom(clazz)
|| DatagramSocket.class.isAssignableFrom(clazz)) {
|| DatagramChannel.class.isAssignableFrom(clazz)) {
return true;
}