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package io.sentry; | ||
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import io.sentry.util.UUIDGenerator; | ||
import io.sentry.util.UUIDStringUtils; | ||
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/** | ||
* SentryUUID is a utility class for generating Sentry-specific ID Strings. It provides methods for | ||
* generating Sentry IDs and Sentry Span IDs. | ||
*/ | ||
public final class SentryUUID { | ||
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private SentryUUID() { | ||
// A private constructor prevents callers from accidentally instantiating FastUUID objects | ||
} | ||
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public static String generateSentryId() { | ||
return UUIDStringUtils.toSentryIdString(UUIDGenerator.randomUUID()); | ||
} | ||
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public static String generateSpanId() { | ||
return UUIDStringUtils.toSentrySpanIdString(UUIDGenerator.randomHalfLengthUUID()); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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/* | ||
* Copyright (c) 2003, 2022, Oracle and/or its affiliates. All rights reserved. | ||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
* | ||
* This code is free software; you can redistribute it and/or modify it | ||
* under the terms of the GNU General Public License version 2 only, as | ||
* published by the Free Software Foundation. Oracle designates this | ||
* particular file as subject to the "Classpath" exception as provided | ||
* by Oracle in the LICENSE file that accompanied this code. | ||
* | ||
* This code is distributed in the hope that it will be useful, but WITHOUT | ||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
* version 2 for more details (a copy is included in the LICENSE file that | ||
* accompanied this code). | ||
* | ||
* You should have received a copy of the GNU General Public License version | ||
* 2 along with this work; if not, write to the Free Software Foundation, | ||
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
* | ||
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
* or visit www.oracle.com if you need additional information or have any | ||
* questions. | ||
*/ | ||
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package io.sentry.util; | ||
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import java.util.Random; | ||
import java.util.UUID; | ||
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/** | ||
* Utility class for generating UUIDs and half-length (1 long) UUIDs. Adapted from `java.util.UUID` | ||
* to use a faster random number generator. | ||
*/ | ||
public final class UUIDGenerator { | ||
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@SuppressWarnings("NarrowingCompoundAssignment") | ||
public static long randomHalfLengthUUID() { | ||
Random random = Holder.numberGenerator; | ||
byte[] randomBytes = new byte[8]; | ||
random.nextBytes(randomBytes); | ||
randomBytes[6] &= 0x0f; /* clear version */ | ||
randomBytes[6] |= 0x40; /* set to version 4 */ | ||
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long msb = 0; | ||
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for (int i = 0; i < 8; i++) msb = (msb << 8) | (randomBytes[i] & 0xff); | ||
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return msb; | ||
} | ||
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@SuppressWarnings("NarrowingCompoundAssignment") | ||
public static UUID randomUUID() { | ||
Random random = Holder.numberGenerator; | ||
byte[] randomBytes = new byte[16]; | ||
random.nextBytes(randomBytes); | ||
randomBytes[6] &= 0x0f; /* clear version */ | ||
randomBytes[6] |= 0x40; /* set to version 4 */ | ||
randomBytes[8] &= 0x3f; /* clear variant */ | ||
randomBytes[8] |= (byte) 0x80; /* set to IETF variant */ | ||
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long msb = 0; | ||
long lsb = 0; | ||
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for (int i = 0; i < 8; i++) msb = (msb << 8) | (randomBytes[i] & 0xff); | ||
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for (int i = 8; i < 16; i++) lsb = (lsb << 8) | (randomBytes[i] & 0xff); | ||
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return new UUID(msb, lsb); | ||
} | ||
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private static class Holder { | ||
static final Random numberGenerator = new Random(); | ||
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private Holder() {} | ||
} | ||
} |
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