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Better exception message to tell the user why it is not supported

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This commit is contained in:
Norman Maurer 2014-01-30 07:00:53 +01:00
parent 0f7379157a
commit f94b563bcd
1 changed files with 61 additions and 60 deletions
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121
transport/src/main/java/io/netty/channel/socket/nio/NioDatagramChannel.java
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@ -82,9 +82,7 @@ public final class NioDatagramChannel
return newSocket();
}
if (PlatformDependent.javaVersion() < 7) {
throw new UnsupportedOperationException();
}
checkJavaVersion();
try {
return DatagramChannel.open(ProtocolFamilyConverter.convert(ipFamily));
@ -93,6 +91,12 @@ public final class NioDatagramChannel
}
}
private static void checkJavaVersion() {
if (PlatformDependent.javaVersion() < 7) {
throw new UnsupportedOperationException("Only supported on java 7+.");
}
}
/**
* Create a new instance which will use the Operation Systems default {@link InternetProtocolFamily}.
*/
@ -349,39 +353,39 @@ public final class NioDatagramChannel
public ChannelFuture joinGroup(
InetAddress multicastAddress, NetworkInterface networkInterface,
InetAddress source, ChannelPromise promise) {
if (PlatformDependent.javaVersion() >= 7) {
if (multicastAddress == null) {
throw new NullPointerException("multicastAddress");
}
if (networkInterface == null) {
throw new NullPointerException("networkInterface");
}
checkJavaVersion();
try {
MembershipKey key;
if (source == null) {
key = javaChannel().join(multicastAddress, networkInterface);
} else {
key = javaChannel().join(multicastAddress, networkInterface, source);
}
synchronized (this) {
List<MembershipKey> keys = memberships.get(multicastAddress);
if (keys == null) {
keys = new ArrayList<MembershipKey>();
memberships.put(multicastAddress, keys);
}
keys.add(key);
}
promise.setSuccess();
} catch (Throwable e) {
promise.setFailure(e);
}
} else {
throw new UnsupportedOperationException();
if (multicastAddress == null) {
throw new NullPointerException("multicastAddress");
}
if (networkInterface == null) {
throw new NullPointerException("networkInterface");
}
try {
MembershipKey key;
if (source == null) {
key = javaChannel().join(multicastAddress, networkInterface);
} else {
key = javaChannel().join(multicastAddress, networkInterface, source);
}
synchronized (this) {
List<MembershipKey> keys = memberships.get(multicastAddress);
if (keys == null) {
keys = new ArrayList<MembershipKey>();
memberships.put(multicastAddress, keys);
}
keys.add(key);
}
promise.setSuccess();
} catch (Throwable e) {
promise.setFailure(e);
}
return promise;
}
@ -424,9 +428,8 @@ public final class NioDatagramChannel
public ChannelFuture leaveGroup(
InetAddress multicastAddress, NetworkInterface networkInterface, InetAddress source,
ChannelPromise promise) {
if (PlatformDependent.javaVersion() < 7) {
throw new UnsupportedOperationException();
}
checkJavaVersion();
if (multicastAddress == null) {
throw new NullPointerException("multicastAddress");
}
@ -478,36 +481,34 @@ public final class NioDatagramChannel
public ChannelFuture block(
InetAddress multicastAddress, NetworkInterface networkInterface,
InetAddress sourceToBlock, ChannelPromise promise) {
if (PlatformDependent.javaVersion() < 7) {
throw new UnsupportedOperationException();
} else {
if (multicastAddress == null) {
throw new NullPointerException("multicastAddress");
}
if (sourceToBlock == null) {
throw new NullPointerException("sourceToBlock");
}
checkJavaVersion();
if (networkInterface == null) {
throw new NullPointerException("networkInterface");
}
synchronized (this) {
if (memberships != null) {
List<MembershipKey> keys = memberships.get(multicastAddress);
for (MembershipKey key: keys) {
if (networkInterface.equals(key.networkInterface())) {
try {
key.block(sourceToBlock);
} catch (IOException e) {
promise.setFailure(e);
}
if (multicastAddress == null) {
throw new NullPointerException("multicastAddress");
}
if (sourceToBlock == null) {
throw new NullPointerException("sourceToBlock");
}
if (networkInterface == null) {
throw new NullPointerException("networkInterface");
}
synchronized (this) {
if (memberships != null) {
List<MembershipKey> keys = memberships.get(multicastAddress);
for (MembershipKey key: keys) {
if (networkInterface.equals(key.networkInterface())) {
try {
key.block(sourceToBlock);
} catch (IOException e) {
promise.setFailure(e);
}
}
}
}
promise.setSuccess();
return promise;
}
promise.setSuccess();
return promise;
}
/**