Rename AD to time series analytics & Resolve Compiler Errors

This commit focuses on renaming the AnomalyDetectorPlugin to TimeSeriesAnalyticsPlugin as well as addressing compiler errors due to package import changes. The primary transformations are:

* Renamed AnomalyDetectorPlugin to TimeSeriesAnalyticsPlugin.
* Updated all references from AnomalyDetectorPlugin to TimeSeriesAnalyticsPlugin.
* Amended plugin information in build.gradle and src/main/resources/es-plugin.properties.
* Switched job type in TimeSeriesAnalyticsPlugin from opendistro_anomaly_detector to opensearch_time_series_analytics.

These changes led to the modification of our plugin binary from opensearch-anomaly-detection-3.0.0.0-SNAPSHOT.jar to opensearch-time-series-analytics-3.0.0.0-SNAPSHOT.jar.

Moreover, following changes from OpenSearch Pull Request #8157, compiler errors were encountered, which were resolved by updating the import packages

* org.opensearch.common.io.stream.NamedWriteableRegistry => org.opensearch.core.common.io.stream.NamedWriteableRegistry
* org.opensearch.common.xcontent.XContentParserUtils => * org.opensearch.core.xcontent.XContentParserUtils
* org.opensearch.common.bytes.BytesArray => org.opensearch.core.common.bytes.BytesArray * org.opensearch.common.io.stream.StreamInput => * org.opensearch.core.common.io.stream.StreamInput ** org.opensearch.common.io.stream.StreamOutput => org.opensearch.core.common.io.stream.StreamOutput
* org.opensearch.common.io.stream.Writeable => org.opensearch.core.common.io.stream.Writeable
* org.opensearch.common.io.stream.NotSerializableExceptionWrapper => org.opensearch.core.common.io.stream.NotSerializableExceptionWrapper
* org.opensearch.rest.RestStatus => org.opensearch.core.rest.RestStatus
* org.opensearch.common.ParsingException => org.opensearch.core.common.ParsingException
* org.opensearch.common.bytes.BytesReference => org.opensearch.core.common.bytes.BytesReference
* org.opensearch.common.io.stream.InputStreamStreamInput => org.opensearch.core.common.io.stream.InputStreamStreamInput
* org.opensearch.common.io.stream.OutputStreamStreamOutput => org.opensearch.core.common.io.stream.OutputStreamStreamOutput
* org.opensearch.index.shard.ShardId => org.opensearch.core.index.shard.ShardId* org.opensearch.index.Index => org.opensearch.core.index.Index
* org.opensearch.core.index.IndexNotFoundException => org.opensearch.index.IndexNotFoundException

Validation steps were executed to ensure these changes did not break functionality:
* gradle build was successful. A local build was required due to outdated OpenSearch and job scheduler nightly builds.
* Backward compatibility tests were performed on a two-node 2.9 cluster running some detectors. These detectors continued to produce results on a 3.0 cluster with these updates.
* I can start new detectors on the 3.0 node.
* After shutting down a 2.9 node, the job transfer to the 3.0 node was successful and the job continued to perform as expected.

Signed-off-by: Kaituo Li <kaituo@amazon.com>

build.gradle

@@ -199,9 +199,9 @@ ext {
 }
 
 opensearchplugin {
-    name 'opensearch-anomaly-detection'
-    description 'OpenSearch anomaly detector plugin'
-    classname 'org.opensearch.ad.AnomalyDetectorPlugin'
+    name 'opensearch-time-series-analytics'
+    description 'OpenSearch time series analytics plugin'
+    classname 'org.opensearch.timeseries.TimeSeriesAnalyticsPlugin'
     extendedPlugins = ['lang-painless', 'opensearch-job-scheduler']
 }
 
@@ -655,7 +655,7 @@ task release(type: Copy, group: 'build') {
 
 List<String> jacocoExclusions = [
         // code for configuration, settings, etc is excluded from coverage
-        'org.opensearch.ad.AnomalyDetectorPlugin',
+        'org.opensearch.timeseries.TimeSeriesAnalyticsPlugin',
 
         // rest layer is tested in integration testing mostly, difficult to mock all of it
         'org.opensearch.ad.rest.*',

src/main/java/org/opensearch/ad/AbstractProfileRunner.java-e

@@ -0,0 +1,37 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ * Modifications Copyright OpenSearch Contributors. See
+ * GitHub history for details.
+ */
+
+package org.opensearch.ad;
+
+import java.util.Locale;
+
+import org.opensearch.ad.model.InitProgressProfile;
+
+public abstract class AbstractProfileRunner {
+    protected long requiredSamples;
+
+    public AbstractProfileRunner(long requiredSamples) {
+        this.requiredSamples = requiredSamples;
+    }
+
+    protected InitProgressProfile computeInitProgressProfile(long totalUpdates, long intervalMins) {
+        float percent = Math.min((100.0f * totalUpdates) / requiredSamples, 100.0f);
+        int neededPoints = (int) (requiredSamples - totalUpdates);
+        return new InitProgressProfile(
+            // rounding: 93.456 => 93%, 93.556 => 94%
+            // Without Locale.ROOT, sometimes conversions use localized decimal digits
+            // rather than the usual ASCII digits. See https://tinyurl.com/y5sdr5tp
+            String.format(Locale.ROOT, "%.0f%%", percent),
+            intervalMins * neededPoints,
+            neededPoints
+        );
+    }
+}

src/main/java/org/opensearch/ad/AnomalyDetectorJobRunner.java

@@ -13,8 +13,8 @@
 
 import static org.opensearch.action.DocWriteResponse.Result.CREATED;
 import static org.opensearch.action.DocWriteResponse.Result.UPDATED;
-import static org.opensearch.ad.AnomalyDetectorPlugin.AD_THREAD_POOL_NAME;
-import static org.opensearch.common.xcontent.XContentParserUtils.ensureExpectedToken;
+import static org.opensearch.core.xcontent.XContentParserUtils.ensureExpectedToken;
+import static org.opensearch.timeseries.TimeSeriesAnalyticsPlugin.AD_THREAD_POOL_NAME;
 import static org.opensearch.timeseries.util.RestHandlerUtils.XCONTENT_WITH_TYPE;
 
 import java.io.IOException;