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16 changes: 16 additions & 0 deletions
16
core/src/main/java/org/mobilitydata/gtfsvalidator/performance/MemoryMonitor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package org.mobilitydata.gtfsvalidator.performance; | ||
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| import java.lang.annotation.ElementType; | ||
| import java.lang.annotation.Retention; | ||
| import java.lang.annotation.RetentionPolicy; | ||
| import java.lang.annotation.Target; | ||
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| /** | ||
| * Annotation to monitor memory usage of a method. The annotated method should return a {@link | ||
| * MemoryUsage} object. The key is used to group memory usage of different methods. | ||
| */ | ||
| @Target(ElementType.METHOD) | ||
| @Retention(RetentionPolicy.RUNTIME) | ||
| public @interface MemoryMonitor { | ||
| String key() default ""; | ||
| } |
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39
core/src/main/java/org/mobilitydata/gtfsvalidator/performance/MemoryMonitorAspect.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package org.mobilitydata.gtfsvalidator.performance; | ||
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| import org.apache.commons.lang3.StringUtils; | ||
| import org.aspectj.lang.ProceedingJoinPoint; | ||
| import org.aspectj.lang.annotation.Around; | ||
| import org.aspectj.lang.annotation.Aspect; | ||
| import org.aspectj.lang.reflect.MethodSignature; | ||
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| /** Aspect to monitor memory usage of a method. */ | ||
| @Aspect | ||
| public class MemoryMonitorAspect { | ||
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| @Around("execution(@org.mobilitydata.gtfsvalidator.performance.MemoryMonitor * *(..))") | ||
| public Object monitorMemoryUsage(ProceedingJoinPoint joinPoint) throws Throwable { | ||
| String key = extractKey(joinPoint); | ||
| MemoryUsage before = MemoryUsageRegister.getInstance().getMemoryUsageSnapshot(key, null); | ||
| try { | ||
| Object result = joinPoint.proceed(); | ||
| return result; | ||
| } finally { | ||
| MemoryUsage after = MemoryUsageRegister.getInstance().getMemoryUsageSnapshot(key, before); | ||
| MemoryUsageRegister.getInstance().registerMemoryUsage(after); | ||
| } | ||
| } | ||
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| /** | ||
| * Extracts the key from the method signature or the annotation. | ||
| * | ||
| * @param joinPoint the join point | ||
| * @return the key either from the annotation or the method signature. | ||
| */ | ||
| private String extractKey(ProceedingJoinPoint joinPoint) { | ||
| var method = ((MethodSignature) joinPoint.getSignature()).getMethod(); | ||
| var memoryMonitor = method.getAnnotation(MemoryMonitor.class); | ||
| return memoryMonitor != null && StringUtils.isNotBlank(memoryMonitor.key()) | ||
| ? memoryMonitor.key() | ||
| : method.getDeclaringClass().getCanonicalName() + "." + method.getName(); | ||
| } | ||
| } |
176 changes: 176 additions & 0 deletions
176
core/src/main/java/org/mobilitydata/gtfsvalidator/performance/MemoryUsage.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| package org.mobilitydata.gtfsvalidator.performance; | ||
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| import java.text.DecimalFormat; | ||
| import org.apache.commons.lang3.StringUtils; | ||
|
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| /** Represents memory usage information. */ | ||
| public class MemoryUsage { | ||
| private static final DecimalFormat TWO_DECIMAL_FORMAT = new DecimalFormat("0.00"); | ||
|
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| private String key; | ||
| private long totalMemory; | ||
| private long freeMemory; | ||
| private long maxMemory; | ||
| private Long diffMemory; | ||
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| public MemoryUsage() {} | ||
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| public MemoryUsage( | ||
| String key, long totalMemory, long freeMemory, long maxMemory, Long diffMemory) { | ||
| this.key = key; | ||
| this.totalMemory = totalMemory; | ||
| this.freeMemory = freeMemory; | ||
| this.maxMemory = maxMemory; | ||
| this.diffMemory = diffMemory; | ||
| } | ||
|
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| /** | ||
| * Converts bytes to human-readable memory. | ||
| * | ||
| * @param bytes | ||
| * @return human-readable memory, e.g., "1.23 GiB" | ||
| */ | ||
| public static String convertToHumanReadableMemory(Long bytes) { | ||
| if (bytes == null) { | ||
| return "N/A"; | ||
| } | ||
| long size = Math.abs(bytes); | ||
| if (size < 1024) { | ||
| return bytes + " bytes"; | ||
| } | ||
| if (size < 1048576) { | ||
| return TWO_DECIMAL_FORMAT.format(Math.copySign(size / 1024.0, bytes)) + " KiB"; | ||
| } | ||
| if (size < 1073741824) { | ||
| return TWO_DECIMAL_FORMAT.format(Math.copySign(size / 1048576.0, bytes)) + " MiB"; | ||
| } | ||
| if (size < 1099511627776L) { | ||
| return TWO_DECIMAL_FORMAT.format(Math.copySign(size / 1073741824.0, bytes)) + " GiB"; | ||
| } | ||
| return TWO_DECIMAL_FORMAT.format(Math.copySign(size / 1099511627776L, bytes)) + " TiB"; | ||
| } | ||
|
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| /** | ||
| * The memory used is computed as the difference between the total memory and the free memory. | ||
| * | ||
| * @return the memory used. | ||
| */ | ||
| public long usedMemory() { | ||
| return totalMemory - freeMemory; | ||
| } | ||
|
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| /** | ||
| * Returns a human-readable string representation of the memory usage. | ||
| * | ||
| * @return a human-readable string representation of the memory usage. | ||
| */ | ||
| public String humanReadablePrint() { | ||
| StringBuffer result = new StringBuffer(); | ||
| result.append("Memory usage registered"); | ||
| if (StringUtils.isNotBlank(key)) { | ||
| result.append(" for key: ").append(key); | ||
| } else { | ||
| result.append(":"); | ||
| } | ||
| result.append(" Max: ").append(convertToHumanReadableMemory(maxMemory)); | ||
| result.append(" Total: ").append(convertToHumanReadableMemory(totalMemory)); | ||
| result.append(" Free: ").append(convertToHumanReadableMemory(freeMemory)); | ||
| result.append(" Used: ").append(convertToHumanReadableMemory(usedMemory())); | ||
| result.append(" Diff: ").append(convertToHumanReadableMemory(diffMemory)); | ||
| return result.toString(); | ||
| } | ||
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| public String getKey() { | ||
| return key; | ||
| } | ||
|
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| public void setKey(String key) { | ||
| this.key = key; | ||
| } | ||
|
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| public long getTotalMemory() { | ||
| return totalMemory; | ||
| } | ||
|
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| public void setTotalMemory(long totalMemory) { | ||
| this.totalMemory = totalMemory; | ||
| } | ||
|
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| public long getFreeMemory() { | ||
| return freeMemory; | ||
| } | ||
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| public void setFreeMemory(long freeMemory) { | ||
| this.freeMemory = freeMemory; | ||
| } | ||
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| public long getMaxMemory() { | ||
| return maxMemory; | ||
| } | ||
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| public void setMaxMemory(long maxMemory) { | ||
| this.maxMemory = maxMemory; | ||
| } | ||
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| public Long getDiffMemory() { | ||
| return diffMemory; | ||
| } | ||
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| public void setDiffMemory(Long diffMemory) { | ||
| this.diffMemory = diffMemory; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "MemoryUsage{" | ||
| + "key=" | ||
| + key | ||
| + ", " | ||
| + "totalMemory=" | ||
| + totalMemory | ||
| + ", " | ||
| + "freeMemory=" | ||
| + freeMemory | ||
| + ", " | ||
| + "maxMemory=" | ||
| + maxMemory | ||
| + ", " | ||
| + "diffMemory=" | ||
| + diffMemory | ||
| + "}"; | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (o == this) { | ||
| return true; | ||
| } | ||
| if (o instanceof MemoryUsage) { | ||
| MemoryUsage that = (MemoryUsage) o; | ||
| return this.key.equals(that.getKey()) | ||
| && this.totalMemory == that.getTotalMemory() | ||
| && this.freeMemory == that.getFreeMemory() | ||
| && this.maxMemory == that.getMaxMemory() | ||
| && (this.diffMemory == null | ||
| ? that.getDiffMemory() == null | ||
| : this.getDiffMemory().equals(that.getDiffMemory())); | ||
| } | ||
| return false; | ||
| } | ||
|
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| @Override | ||
| public int hashCode() { | ||
| int h$ = 1; | ||
| h$ *= 1000003; | ||
| h$ ^= key.hashCode(); | ||
| h$ *= 1000003; | ||
| h$ ^= (int) ((totalMemory >>> 32) ^ totalMemory); | ||
| h$ *= 1000003; | ||
| h$ ^= (int) ((freeMemory >>> 32) ^ freeMemory); | ||
| h$ *= 1000003; | ||
| h$ ^= (int) ((maxMemory >>> 32) ^ maxMemory); | ||
| h$ *= 1000003; | ||
| h$ ^= (diffMemory == null) ? 0 : diffMemory.hashCode(); | ||
| return h$; | ||
| } | ||
| } |
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