本文整理汇总了Java中net.jpountz.xxhash.XXHashFactory.newStreamingHash32方法的典型用法代码示例。如果您正苦于以下问题：Java XXHashFactory.newStreamingHash32方法的具体用法？Java XXHashFactory.newStreamingHash32怎么用？Java XXHashFactory.newStreamingHash32使用的例子？那么, 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net.jpountz.xxhash.XXHashFactory的用法示例。
在下文中一共展示了XXHashFactory.newStreamingHash32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 net.jpountz.xxhash.XXHashFactory; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {
LZ4Factory factory = LZ4Factory.fastestInstance();
byte[] data = "Compressors and decompressors are interchangeable: it is perfectly correct to compress with the JNI bindings and to decompress with a Java port, or the other way around.Compressors might not generate the same compressed streams on all platforms, especially if CPU endianness differs, but the compressed streams can be safely decompressed by any decompressor implementation on any platform.Compressors and decompressors are interchangeable: it is perfectly correct to compress with the JNI bindings and to decompress with a Java port, or the other way around.Compressors might not generate the same compressed streams on all platforms, especially if CPU endianness differs, but the compressed streams can be safely decompressed by any decompressor implementation on any platform.".getBytes("UTF-8");
final int decompressedLength = data.length;
System.out.println("dataLength:" + decompressedLength);
// compress data
LZ4Compressor compressor = factory.fastCompressor();
int maxCompressedLength = compressor.maxCompressedLength(decompressedLength);
byte[] compressed = new byte[maxCompressedLength];
int compressedLength = compressor.compress(data, 0, decompressedLength, compressed, 0, maxCompressedLength);
System.out.println("compressedLength:" + compressedLength);
// decompress data
// - method 1: when the decompressed length is known
LZ4FastDecompressor decompressor = factory.fastDecompressor();
byte[] restored = new byte[decompressedLength];
int compressedLength2 = decompressor.decompress(compressed, 0, restored, 0, decompressedLength);
// compressedLength == compressedLength2
System.out.println("compressedLength2:" + compressedLength2);
// - method 2: when the compressed length is known (a little slower)
// the destination buffer needs to be over-sized
LZ4SafeDecompressor decompressor2 = factory.safeDecompressor();
int decompressedLength2 = decompressor2.decompress(compressed, 0, compressedLength, restored, 0);
// decompressedLength == decompressedLength2
System.out.println("decompressedLength2:" + compressedLength);
XXHashFactory factory1 = XXHashFactory.fastestInstance();
ByteArrayInputStream in = new ByteArrayInputStream(data);
int seed = 0x9747b28c; // used to initialize the hash value, use whatever
// value you want, but always the same
StreamingXXHash32 hash32 = factory1.newStreamingHash32(seed);
byte[] buf = new byte[8]; // for real-world usage, use a larger buffer, like 8192 bytes
for (;;) {
int read = in.read(buf);
if (read == -1) {
break;
}
hash32.update(buf, 0, read);
}
int hash = hash32.getValue();
System.out.println(hash);
}
示例2: FastHash
import net.jpountz.xxhash.XXHashFactory; //导入方法依赖的package包/类
public FastHash() {
XXHashFactory factory = XXHashFactory.fastestInstance();
int seed = 0x9747b28f;
hash32 = factory.newStreamingHash32(seed);
}