com.google.common.hash.HashCode.getBytesInternal()方法的使用及代码示例
本文整理了Java中com.google.common.hash.HashCode.getBytesInternal()方法的一些代码示例，展示了HashCode.getBytesInternal()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。HashCode.getBytesInternal()方法的具体详情如下：
包路径：com.google.common.hash.HashCode
类名称：HashCode
方法名：getBytesInternal
HashCode.getBytesInternal介绍
[英]Returns a mutable view of the underlying bytes for the given HashCode if it is a byte-based hashcode. Otherwise it returns HashCode#asBytes. Do not mutate this array or else you will break the immutability contract of HashCode.
[中]如果给定哈希代码是基于字节的哈希代码，则返回其基础字节的可变视图。否则返回HashCode#asBytes。不要改变这个数组，否则你会破坏HashCode的不变性契约。
代码示例
代码示例来源：origin: google/guava
@Override
boolean equalsSameBits(HashCode that) {
// We don't use MessageDigest.isEqual() here because its contract does not guarantee
// constant-time evaluation (no short-circuiting).
if (this.bytes.length != that.getBytesInternal().length) {
return false;
}
boolean areEqual = true;
for (int i = 0; i < this.bytes.length; i++) {
areEqual &= (this.bytes[i] == that.getBytesInternal()[i]);
}
return areEqual;
}代码示例来源：origin: google/j2objc
@Override
boolean equalsSameBits(HashCode that) {
// We don't use MessageDigest.isEqual() here because its contract does not guarantee
// constant-time evaluation (no short-circuiting).
if (this.bytes.length != that.getBytesInternal().length) {
return false;
}
boolean areEqual = true;
for (int i = 0; i < this.bytes.length; i++) {
areEqual &= (this.bytes[i] == that.getBytesInternal()[i]);
}
return areEqual;
}代码示例来源：origin: wildfly/wildfly
@Override
boolean equalsSameBits(HashCode that) {
// We don't use MessageDigest.isEqual() here because its contract does not guarantee
// constant-time evaluation (no short-circuiting).
if (this.bytes.length != that.getBytesInternal().length) {
return false;
}
boolean areEqual = true;
for (int i = 0; i < this.bytes.length; i++) {
areEqual &= (this.bytes[i] == that.getBytesInternal()[i]);
}
return areEqual;
}代码示例来源：origin: google/guava
/**
* Returns a string containing each byte of {@link #asBytes}, in order, as a two-digit unsigned
* hexadecimal number in lower case.
*
* <p>Note that if the output is considered to be a single hexadecimal number, this hash code's
* bytes are the <i>big-endian</i> representation of that number. This may be surprising since
* everything else in the hashing API uniformly treats multibyte values as little-endian. But this
* format conveniently matches that of utilities such as the UNIX {@code md5sum} command.
*
* <p>To create a {@code HashCode} from its string representation, see {@link #fromString}.
*/
@Override
public final String toString() {
byte[] bytes = getBytesInternal();
StringBuilder sb = new StringBuilder(2 * bytes.length);
for (byte b : bytes) {
sb.append(hexDigits[(b >> 4) & 0xf]).append(hexDigits[b & 0xf]);
}
return sb.toString();
}代码示例来源：origin: google/j2objc
/**
* Returns a string containing each byte of {@link #asBytes}, in order, as a two-digit unsigned
* hexadecimal number in lower case.
*
* <p>Note that if the output is considered to be a single hexadecimal number, this hash code's
* bytes are the <i>big-endian</i> representation of that number. This may be surprising since
* everything else in the hashing API uniformly treats multibyte values as little-endian. But this
* format conveniently matches that of utilities such as the UNIX {@code md5sum} command.
*
* <p>To create a {@code HashCode} from its string representation, see {@link #fromString}.
*/
@Override
public final String toString() {
byte[] bytes = getBytesInternal();
StringBuilder sb = new StringBuilder(2 * bytes.length);
for (byte b : bytes) {
sb.append(hexDigits[(b >> 4) & 0xf]).append(hexDigits[b & 0xf]);
}
return sb.toString();
}代码示例来源：origin: wildfly/wildfly
/**
* Returns a string containing each byte of {@link #asBytes}, in order, as a two-digit unsigned
* hexadecimal number in lower case.
*
* <p>Note that if the output is considered to be a single hexadecimal number, this hash code's
* bytes are the <i>big-endian</i> representation of that number. This may be surprising since
* everything else in the hashing API uniformly treats multibyte values as little-endian. But this
* format conveniently matches that of utilities such as the UNIX {@code md5sum} command.
*
* <p>To create a {@code HashCode} from its string representation, see {@link #fromString}.
*/
@Override
public final String toString() {
byte[] bytes = getBytesInternal();
StringBuilder sb = new StringBuilder(2 * bytes.length);
for (byte b : bytes) {
sb.append(hexDigits[(b >> 4) & 0xf]).append(hexDigits[b & 0xf]);
}
return sb.toString();
}代码示例来源：origin: google/guava
/**
* Returns a "Java hash code" for this {@code HashCode} instance; this is well-defined (so, for
* example, you can safely put {@code HashCode} instances into a {@code HashSet}) but is otherwise
* probably not what you want to use.
*/
@Override
public final int hashCode() {
// If we have at least 4 bytes (32 bits), just take the first 4 bytes. Since this is
// already a (presumably) high-quality hash code, any four bytes of it will do.
if (bits() >= 32) {
return asInt();
}
// If we have less than 4 bytes, use them all.
byte[] bytes = getBytesInternal();
int val = (bytes[0] & 0xFF);
for (int i = 1; i < bytes.length; i++) {
val |= ((bytes[i] & 0xFF) << (i * 8));
}
return val;
}代码示例来源：origin: google/j2objc
/**
* Returns a "Java hash code" for this {@code HashCode} instance; this is well-defined (so, for
* example, you can safely put {@code HashCode} instances into a {@code HashSet}) but is otherwise
* probably not what you want to use.
*/
@Override
public final int hashCode() {
// If we have at least 4 bytes (32 bits), just take the first 4 bytes. Since this is
// already a (presumably) high-quality hash code, any four bytes of it will do.
if (bits() >= 32) {
return asInt();
}
// If we have less than 4 bytes, use them all.
byte[] bytes = getBytesInternal();
int val = (bytes[0] & 0xFF);
for (int i = 1; i < bytes.length; i++) {
val |= ((bytes[i] & 0xFF) << (i * 8));
}
return val;
}代码示例来源：origin: wildfly/wildfly
/**
* Returns a "Java hash code" for this {@code HashCode} instance; this is well-defined (so, for
* example, you can safely put {@code HashCode} instances into a {@code HashSet}) but is otherwise
* probably not what you want to use.
*/
@Override
public final int hashCode() {
// If we have at least 4 bytes (32 bits), just take the first 4 bytes. Since this is
// already a (presumably) high-quality hash code, any four bytes of it will do.
if (bits() >= 32) {
return asInt();
}
// If we have less than 4 bytes, use them all.
byte[] bytes = getBytesInternal();
int val = (bytes[0] & 0xFF);
for (int i = 1; i < bytes.length; i++) {
val |= ((bytes[i] & 0xFF) << (i * 8));
}
return val;
}代码示例来源：origin: google/guava
@Override
public <T> boolean mightContain(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
if (!bits.get((combinedHash & Long.MAX_VALUE) % bitSize)) {
return false;
}
combinedHash += hash2;
}
return true;
}代码示例来源：origin: google/guava
@Override
public <T> boolean put(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
boolean bitsChanged = false;
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
bitsChanged |= bits.set((combinedHash & Long.MAX_VALUE) % bitSize);
combinedHash += hash2;
}
return bitsChanged;
}代码示例来源：origin: google/guava
public void testGetBytesInternal_noCloneOccurs() {
byte[] bytes = new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00};
HashCode hashCode = HashCode.fromBytes(bytes);
assertEquals(0x0000abcd, hashCode.asInt());
assertEquals("cdab0000", hashCode.toString());
hashCode.getBytesInternal()[0] = (byte) 0x00;
assertEquals(0x0000ab00, hashCode.asInt());
assertEquals("00ab0000", hashCode.toString());
}代码示例来源：origin: google/j2objc
@Override
public <T> boolean put(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
boolean bitsChanged = false;
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
bitsChanged |= bits.set((combinedHash & Long.MAX_VALUE) % bitSize);
combinedHash += hash2;
}
return bitsChanged;
}代码示例来源：origin: google/j2objc
@Override
public <T> boolean mightContain(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
if (!bits.get((combinedHash & Long.MAX_VALUE) % bitSize)) {
return false;
}
combinedHash += hash2;
}
return true;
}代码示例来源：origin: wildfly/wildfly
@Override
public <T> boolean put(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
boolean bitsChanged = false;
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
bitsChanged |= bits.set((combinedHash & Long.MAX_VALUE) % bitSize);
combinedHash += hash2;
}
return bitsChanged;
}代码示例来源：origin: wildfly/wildfly
@Override
public <T> boolean mightContain(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
if (!bits.get((combinedHash & Long.MAX_VALUE) % bitSize)) {
return false;
}
combinedHash += hash2;
}
return true;
}代码示例来源：origin: org.kill-bill.billing/killbill-platform-osgi-bundles-logger
@Override
boolean equalsSameBits(HashCode that) {
// We don't use MessageDigest.isEqual() here because its contract does not guarantee
// constant-time evaluation (no short-circuiting).
if (this.bytes.length != that.getBytesInternal().length) {
return false;
}
boolean areEqual = true;
for (int i = 0; i < this.bytes.length; i++) {
areEqual &= (this.bytes[i] == that.getBytesInternal()[i]);
}
return areEqual;
}代码示例来源：origin: org.jboss.eap/wildfly-client-all
@Override
boolean equalsSameBits(HashCode that) {
// We don't use MessageDigest.isEqual() here because its contract does not guarantee
// constant-time evaluation (no short-circuiting).
if (this.bytes.length != that.getBytesInternal().length) {
return false;
}
boolean areEqual = true;
for (int i = 0; i < this.bytes.length; i++) {
areEqual &= (this.bytes[i] == that.getBytesInternal()[i]);
}
return areEqual;
}代码示例来源：origin: org.kill-bill.billing/killbill-platform-osgi-bundles-logger
@Override
public <T> boolean put(
T object, Funnel<? super T> funnel, int numHashFunctions, LockFreeBitArray bits) {
long bitSize = bits.bitSize();
byte[] bytes = Hashing.murmur3_128().hashObject(object, funnel).getBytesInternal();
long hash1 = lowerEight(bytes);
long hash2 = upperEight(bytes);
boolean bitsChanged = false;
long combinedHash = hash1;
for (int i = 0; i < numHashFunctions; i++) {
// Make the combined hash positive and indexable
bitsChanged |= bits.set((combinedHash & Long.MAX_VALUE) % bitSize);
combinedHash += hash2;
}
return bitsChanged;
}代码示例来源：origin: com.google.guava/guava-tests
public void testGetBytesInternal_noCloneOccurs() {
byte[] bytes = new byte[] { (byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00 };
HashCode hashCode = HashCode.fromBytes(bytes);
assertEquals(0x0000abcd, hashCode.asInt());
assertEquals("cdab0000", hashCode.toString());
hashCode.getBytesInternal()[0] = (byte) 0x00;
assertEquals(0x0000ab00, hashCode.asInt());
assertEquals("00ab0000", hashCode.toString());
}内容来源于网络，如有侵权，请联系作者删除！
