本文整理汇总了Java中java.nio.channels.SeekableByteChannel.truncate方法的典型用法代码示例。如果您正苦于以下问题：Java SeekableByteChannel.truncate方法的具体用法？Java SeekableByteChannel.truncate怎么用？Java SeekableByteChannel.truncate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类java.nio.channels.SeekableByteChannel的用法示例。
在下文中一共展示了SeekableByteChannel.truncate方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: main
import java.nio.channels.SeekableByteChannel; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception {
AuthTimeWithHash a1 = new AuthTimeWithHash(client, server, time(0), 0,
"1111111111111111");
AuthTimeWithHash a2 = new AuthTimeWithHash(client, server, time(0), 0,
"2222222222222222");
KerberosTime now = new KerberosTime(time(0)*1000L);
// When all new styles, must exact match
ReplayCache cache = ReplayCache.getInstance("dfl:./c1");
cache.checkAndStore(now, a1);
cache.checkAndStore(now, a2);
// When only old style in cache, partial match
cache = ReplayCache.getInstance("dfl:./c2");
cache.checkAndStore(now, a1);
// A small surgery to remove the new style from the cache file
SeekableByteChannel ch = Files.newByteChannel(Paths.get("c2"),
StandardOpenOption.WRITE,
StandardOpenOption.READ);
ch.position(6);
ch.write(ByteBuffer.wrap(a1.encode(false)));
ch.truncate(ch.position());
ch.close();
try {
cache.checkAndStore(now, a2);
throw new Exception();
} catch (KrbException ke) {
// Correct
System.out.println(ke);
}
}
示例2: main
import java.nio.channels.SeekableByteChannel; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception {
AuthTimeWithHash a1 = new AuthTimeWithHash(client, server, time(0), 0,
"HASH", "1111111111111111");
AuthTimeWithHash a2 = new AuthTimeWithHash(client, server, time(0), 0,
"HASH", "2222222222222222");
KerberosTime now = new KerberosTime(time(0)*1000L);
// When all new styles, must exact match
ReplayCache cache = ReplayCache.getInstance("dfl:./c1");
cache.checkAndStore(now, a1);
cache.checkAndStore(now, a2);
// When only old style in cache, partial match
cache = ReplayCache.getInstance("dfl:./c2");
cache.checkAndStore(now, a1);
// A small surgery to remove the new style from the cache file
SeekableByteChannel ch = Files.newByteChannel(Paths.get("c2"),
StandardOpenOption.WRITE,
StandardOpenOption.READ);
ch.position(6);
ch.write(ByteBuffer.wrap(a1.encode(false)));
ch.truncate(ch.position());
ch.close();
try {
cache.checkAndStore(now, a2);
throw new Exception();
} catch (KrbException ke) {
// Correct
System.out.println(ke);
}
}