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Merge pull request #135 from HubSpot/non-random-random
Add configurable random number generator
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117 changes: 117 additions & 0 deletions
117
src/main/java/com/hubspot/jinjava/random/ConstantZeroRandomNumberGenerator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package com.hubspot.jinjava.random; | ||
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| import java.util.Random; | ||
| import java.util.stream.DoubleStream; | ||
| import java.util.stream.IntStream; | ||
| import java.util.stream.LongStream; | ||
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| /** | ||
| * A random number generator that always returns 0. Useful for testing code when you want the output to be constant. | ||
| */ | ||
| public class ConstantZeroRandomNumberGenerator extends Random { | ||
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| @Override | ||
| protected int next(int bits) { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public int nextInt() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public int nextInt(int bound) { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public long nextLong() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public boolean nextBoolean() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public float nextFloat() { | ||
| return 0f; | ||
| } | ||
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| @Override | ||
| public double nextDouble() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public synchronized double nextGaussian() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public void nextBytes(byte[] bytes) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public IntStream ints(long streamSize) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public IntStream ints() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public IntStream ints(long streamSize, int randomNumberOrigin, int randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public IntStream ints(int randomNumberOrigin, int randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public LongStream longs(long streamSize) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public LongStream longs() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public LongStream longs(long streamSize, long randomNumberOrigin, long randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public LongStream longs(long randomNumberOrigin, long randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public DoubleStream doubles(long streamSize) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public DoubleStream doubles() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public DoubleStream doubles(long streamSize, double randomNumberOrigin, double randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } |
6 changes: 6 additions & 0 deletions
6
src/main/java/com/hubspot/jinjava/random/RandomNumberGeneratorStrategy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| package com.hubspot.jinjava.random; | ||
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| public enum RandomNumberGeneratorStrategy { | ||
| THREAD_LOCAL, | ||
| CONSTANT_ZERO | ||
| } |
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