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cdap-appscdap-apps
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Changing the POM to use plugin for building
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‎pom.xml‎

Lines changed: 19 additions & 88 deletions
Original file line numberDiff line numberDiff line change
@@ -139,94 +139,25 @@
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-antrun-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-antrun-plugin</artifactId>
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<version>1.7</version>
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<executions>
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<!-- Create the config file for artifact which can be used to deploy the artifact.
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Sets the parents field to system:cdap-etl-batch and system:cdap-etl-realtime with whatever
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version range is set in the etl.versionRange property.
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also sets a widget and doc property for each file contained in the widgets and docs directories. -->
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<execution>
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<id>create-artifact-config</id>
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<phase>prepare-package</phase>
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<configuration>
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<target>
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<script language="javascript"> <![CDATA[
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// for some reason, project.basedir evaluates to null if we just get the property here.
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// so we set main.basedir to project.basedir in the pom properties, then main.basedir is used here
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// where it evaluates correctly for whatever reason
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var baseDir = project.getProperty("main.basedir");
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var targetDir = project.getProperty("project.build.directory");
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var artifactId = project.getProperty("project.artifactId");
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var version = project.getProperty("project.version");
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var cfgFile = new java.io.File(targetDir, artifactId + "-" + version + ".json");
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if (!cfgFile.exists()) {
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cfgFile.createNewFile();
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}
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var etlRange = project.getProperty("etl.versionRange");
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var config = {
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"parents": [
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"system:wrangler-transform[1.0.0-SNAPSHOT, 10.0.0-SNAPSHOT]"
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],
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"properties": {}
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}
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// look in widgets directory for widget config for each plugin
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var widgetsDir = new java.io.File(baseDir, "widgets");
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if (widgetsDir.isDirectory()) {
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var widgetsFiles = widgetsDir.listFiles();
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for (i = 0; i < widgetsFiles.length; i++) {
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var widgetsFile = widgetsFiles[i];
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if (widgetsFile.isFile()) {
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var propertyName = "widgets." + widgetsFile.getName();
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// if the filename ends with .json
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if (propertyName.indexOf(".json", propertyName.length - 5) !== -1) {
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// strip the .json
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propertyName = propertyName.slice(0, -5);
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var contents = new java.lang.String(java.nio.file.Files.readAllBytes(widgetsFile.toPath()), java.nio.charset.StandardCharsets.UTF_8);
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var contentsAsJson = JSON.parse(contents);
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config.properties[propertyName] = JSON.stringify(contentsAsJson);
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}
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}
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}
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}
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// look in the docs directory for docs for each plugin
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var docsDir = new java.io.File(baseDir, "docs");
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if (docsDir.isDirectory()) {
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var docFiles = docsDir.listFiles();
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for (i = 0; i < docFiles.length; i++) {
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var docFile = docFiles[i];
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if (docFile.isFile()) {
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var propertyName = "doc." + docFile.getName();
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// if the filename ends with .md
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if (propertyName.indexOf(".md", propertyName.length - 3) !== -1) {
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// strip the extension
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propertyName = propertyName.slice(0, -3);
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var contents = new java.lang.String(java.nio.file.Files.readAllBytes(docFile.toPath()), java.nio.charset.StandardCharsets.UTF_8);
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config.properties[propertyName] = contents + "";
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}
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}
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}
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}
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var fw = new java.io.BufferedWriter(new java.io.FileWriter(cfgFile.getAbsoluteFile()));
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fw.write(JSON.stringify(config, null, 2));
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fw.close();
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]]></script>
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</target>
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</configuration>
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<goals>
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<goal>run</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>co.cask</groupId>
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<artifactId>cdap-maven-plugin</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<configuration>
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<cdapArtifacts>
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<parent>system:wrangler-transform[3.0.0,10.0.0)</parent>
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</cdapArtifacts>
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</configuration>
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<executions>
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<execution>
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<id>create-artifact-config</id>
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<phase>prepare-package</phase>
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<goals>
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<goal>create-plugin-json</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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‎pom.xml.default‎

Lines changed: 0 additions & 164 deletions
This file was deleted.

‎src/main/java/org/example/directives/TextLength.java‎

Lines changed: 86 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,86 @@
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/*
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* Copyright © 2017 Cask Data, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* the License.
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*/
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package org.example.directives;
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import co.cask.cdap.api.annotation.Description;
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import co.cask.cdap.api.annotation.Name;
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import co.cask.cdap.api.annotation.Plugin;
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import co.cask.cdap.api.common.Bytes;
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import co.cask.wrangler.api.Arguments;
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import co.cask.wrangler.api.Directive;
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import co.cask.wrangler.api.DirectiveExecutionException;
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import co.cask.wrangler.api.DirectiveParseException;
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import co.cask.wrangler.api.ErrorRowException;
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import co.cask.wrangler.api.ExecutorContext;
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import co.cask.wrangler.api.Row;
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import co.cask.wrangler.api.parser.ColumnName;
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import co.cask.wrangler.api.parser.TokenType;
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import co.cask.wrangler.api.parser.UsageDefinition;
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import java.util.List;
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/**
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* This class <code>TextReverse</code>implements a <code>Directive</code> interface
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* for reversing the text specified by the value of the <code>column</code>.
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*/
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@Plugin(type = Directive.Type)
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@Name(TextLength.DIRECTIVE_NAME)
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@Description("Computes tthe length of the string.")
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public final class TextLength implements Directive {
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public static final String DIRECTIVE_NAME = "text-length";
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private String column;
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@Override
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public UsageDefinition define() {
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// Usage : text-reverse :column;
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UsageDefinition.Builder builder = UsageDefinition.builder(DIRECTIVE_NAME);
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builder.define("column", TokenType.COLUMN_NAME);
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return builder.build();
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}
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@Override
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public void initialize(Arguments args)
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throws DirectiveParseException {
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column = ((ColumnName) args.value("column")).value();
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}
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@Override
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public List<Row> execute(List<Row> rows, ExecutorContext context)
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throws DirectiveExecutionException, ErrorRowException {
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for (Row row : rows) {
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int idx = row.find(column);
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if (idx != -1) {
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Object object = row.getValue(idx);
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if (object instanceof String) {
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if (object != null) {
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String value = (String) object;
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row.setValue(idx, value.length());
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}
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} else if (object instanceof byte[]) {
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String value = Bytes.toString((byte[])object);
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row.setValue(idx, value.length());
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}
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}
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}
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return rows;
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}
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@Override
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public void destroy() {
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// no-op
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}
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}

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