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110 changes: 110 additions & 0 deletions
110
dotCMS/src/main/java/com/dotcms/metrics/timing/TimeMetric.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package com.dotcms.metrics.timing; | ||
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| import com.dotmarketing.util.Logger; | ||
| import org.apache.commons.lang3.StringUtils; | ||
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| import java.util.UUID; | ||
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| /** | ||
| * A utility class for measuring and formatting time metrics. | ||
| * | ||
| * <p>This class allows you to create and track time metrics, measure the duration, | ||
| * and format the duration in seconds using the default format. It also provides | ||
| * methods for equality comparison based on the metric's name.</p> | ||
| * | ||
| * @author vico | ||
| */ | ||
| public class TimeMetric { | ||
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| private final String name; | ||
| private long start = Long.MIN_VALUE; | ||
| private long stop = Long.MIN_VALUE; | ||
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| private TimeMetric(final String name) { | ||
| final String metricId = UUID.randomUUID().toString(); | ||
| this.name = (StringUtils.isNotBlank(name) ? name + "_" : "") + metricId; | ||
| } | ||
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| public long getStart() { | ||
| return start; | ||
| } | ||
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| public long getStop() { | ||
| return stop; | ||
| } | ||
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| /** | ||
| * Factory method to create a new TimeMetric instance with a given name and start timing. | ||
| * | ||
| * @param name The name of the time metric. | ||
| * @return A new TimeMetric instance with the specified name and started timer. | ||
| */ | ||
| public static TimeMetric mark(final String name) { | ||
| return new TimeMetric(name).start(); | ||
| } | ||
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| /** | ||
| * Start the timer for the TimeMetric instance. | ||
| * | ||
| * @return The TimeMetric instance with the timer started. | ||
| */ | ||
| public TimeMetric start() { | ||
| start = System.currentTimeMillis(); | ||
| reportStart(); | ||
| return this; | ||
| } | ||
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| /** | ||
| * Stop the timer for the TimeMetric instance. | ||
| * | ||
| * @return The TimeMetric instance with the timer stopped. | ||
| */ | ||
| public TimeMetric stop() { | ||
| stop = System.currentTimeMillis(); | ||
| reportStop(); | ||
| return this; | ||
| } | ||
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| /** | ||
| * Get the name of the TimeMetric. | ||
| * | ||
| * @return The name of the TimeMetric. | ||
| */ | ||
| public String getName() { | ||
| return name; | ||
| } | ||
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| /** | ||
| * Get the duration of the TimeMetric in milliseconds. | ||
| * | ||
| * @return The duration of the TimeMetric in milliseconds. | ||
| * @throws IllegalStateException if the TimeMetric is not started or stopped. | ||
| */ | ||
| public long getDuration() { | ||
| if (start == Long.MIN_VALUE || stop == Long.MIN_VALUE) { | ||
| throw new IllegalStateException("TimeMetric not started or stopped"); | ||
| } | ||
| return stop - start; | ||
| } | ||
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| /** | ||
| * Report the start of a time metric. | ||
| */ | ||
| private void reportStart() { | ||
| Logger.debug(this, String.format(">>>>> START [%s] at [%d]", getName(), getStart())); | ||
| } | ||
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| /** | ||
| * Report the stop of a time metric. | ||
| */ | ||
| private void reportStop() { | ||
| Logger.debug( | ||
| this, | ||
| String.format( | ||
| "<<<<< STOP [%s] at [%d] / duration [%s]", | ||
| getName(), | ||
| getStop(), | ||
| TimeMetricHelper.get().formatDuration(this))); | ||
| } | ||
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| } |
47 changes: 47 additions & 0 deletions
47
dotCMS/src/main/java/com/dotcms/metrics/timing/TimeMetricHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| package com.dotcms.metrics.timing; | ||
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| import io.vavr.Lazy; | ||
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| /** | ||
| * Utility class for formatting time metrics. | ||
| * | ||
| * @author vico | ||
| */ | ||
| public class TimeMetricHelper { | ||
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| private static final Lazy<TimeMetricHelper> INSTANCE = Lazy.of(TimeMetricHelper::new); | ||
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| private TimeMetricHelper() {} | ||
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| /** | ||
| * Get an instance of the {@link TimeMetricHelper} class. | ||
| * | ||
| * @return The singleton instance of {@link TimeMetricHelper}. | ||
| */ | ||
| public static TimeMetricHelper get() { | ||
| return INSTANCE.get(); | ||
| } | ||
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| /** | ||
| * Format a time metric in seconds using a custom mask. | ||
| * | ||
| * @param timeMetric The time metric to format. | ||
| * @param mask The custom format mask (e.g., "%.2f"). | ||
| * @return The formatted string representing the time metric. | ||
| */ | ||
| public String formatDuration(final TimeMetric timeMetric, final String mask) { | ||
| return String.format(mask, (float) timeMetric.getDuration() / 1000); | ||
| } | ||
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| /** | ||
| * Format a time metric in seconds using the default mask "%.4f". | ||
| * | ||
| * @param timeMetric The time metric to format. | ||
| * @return The formatted string representing the time metric. | ||
| */ | ||
| public String formatDuration(final TimeMetric timeMetric) { | ||
| return formatDuration(timeMetric, "%.4f"); | ||
| } | ||
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| } |
47 changes: 47 additions & 0 deletions
47
dotCMS/src/test/java/com/dotcms/metrics/timing/TimeMetricHelperTest.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,47 @@ | ||
| package com.dotcms.metrics.timing; | ||
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| import com.dotcms.UnitTestBase; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
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| import static graphql.Assert.assertTrue; | ||
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| /** | ||
| * Unit tests for the {@link TimeMetricHelper} class. | ||
| * | ||
| * @author vico | ||
| */ | ||
| public class TimeMetricHelperTest extends UnitTestBase { | ||
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| private TimeMetricHelper timeMetricHelper; | ||
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| @Before | ||
| public void setUp() { | ||
| timeMetricHelper = TimeMetricHelper.get(); | ||
| } | ||
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| /** | ||
| * Test the {@link TimeMetricHelper#formatDuration(TimeMetric, String)} method with a custom mask. | ||
| */ | ||
| @Test | ||
| public void testFormatSecondsWithCustomMask() throws InterruptedException { | ||
| final TimeMetric timeMetric = TimeMetric.mark("some-time-metric"); | ||
| Thread.sleep(100); | ||
| timeMetric.stop(); | ||
| final String formatted = timeMetricHelper.formatDuration(timeMetric, "%.2f"); | ||
| assertTrue(formatted.startsWith("0.1")); | ||
| } | ||
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| /** | ||
| * Test the {@link TimeMetricHelper#formatDuration(TimeMetric)} method with the default mask. | ||
| */ | ||
| @Test | ||
| public void testFormatSecondsWithDefaultMask() throws InterruptedException { | ||
| final TimeMetric timeMetric = TimeMetric.mark("some-time-metric"); | ||
| Thread.sleep(100); | ||
| timeMetric.stop(); | ||
| final String formatted = timeMetricHelper.formatDuration(timeMetric); | ||
| assertTrue(formatted.startsWith("0.10")); | ||
| } | ||
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| } |
36 changes: 36 additions & 0 deletions
36
dotCMS/src/test/java/com/dotcms/metrics/timing/TimeMetricTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package com.dotcms.metrics.timing; | ||
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| import com.dotcms.UnitTestBase; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
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| import static org.junit.Assert.assertNotNull; | ||
| import static org.junit.Assert.assertTrue; | ||
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| /** | ||
| * Unit tests for the {@link TimeMetric} class. | ||
| */ | ||
| public class TimeMetricTest extends UnitTestBase { | ||
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| private TimeMetric timeMetric; | ||
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| /** | ||
| * Set up the test environment by initializing the {@link TimeMetric} instance. | ||
| */ | ||
| @Before | ||
| public void setUp() { | ||
| timeMetric = TimeMetric.mark("TestMetric"); | ||
| } | ||
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| /** | ||
| * Test the stop() method of the {@link TimeMetric} class. | ||
| */ | ||
| @Test | ||
| public void testStartAndStop() { | ||
| assertNotNull("TimeMetric instance should not be null", timeMetric); | ||
| timeMetric.start(); | ||
| assertTrue("Timer should be stopped after calling stop()", timeMetric.stop().getDuration() >= 0); | ||
| } | ||
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| } | ||
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