pom.xml.javascript

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.example</groupId>
  <artifactId>simple-udds</artifactId>
  <name>Simple User Defined Directives</name>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>

  <properties>
    <!-- properties for script build step that creates the config files for the artifacts -->
    <widgets.dir>widgets</widgets.dir>
    <docs.dir>docs</docs.dir>
    <!-- this is here because project.basedir evaluates to null in the script build step -->
    <main.basedir>${project.basedir}</main.basedir>
    <cdap.version>4.3.1</cdap.version>
    <wrangler.version>3.0.1</wrangler.version>
    <commons.codec.version>1.10</commons.codec.version>
    <junit.version>4.12</junit.version>
  </properties>

  <distributionManagement>
    <repository>
      <id>sonatype.release</id>
      <url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
    </repository>
    <snapshotRepository>
      <id>sonatype.snapshots</id>
      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
    </snapshotRepository>
  </distributionManagement>

  <!-- Include the Maven Plugin Repository -->
  <pluginRepositories>
   <pluginRepository>
      <id>sonatype</id>
      <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
    </pluginRepository>
  </pluginRepositories>
         
  <dependencies>
    <!-- Core Dependencies -->

    <dependency>
      <groupId>co.cask.wrangler</groupId>
      <artifactId>wrangler-api</artifactId>
      <version>${wrangler.version}</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>co.cask.cdap</groupId>
      <artifactId>cdap-api</artifactId>
      <version>${cdap.version}</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>co.cask.cdap</groupId>
      <artifactId>cdap-etl-api</artifactId>
      <version>${cdap.version}</version>
      <scope>provided</scope>
    </dependency>

    <!-- External Dependencies -->

    <dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>${commons.codec.version}</version>
    </dependency>

    <!-- Testing Dependencies -->
    <dependency>
      <groupId>co.cask.wrangler</groupId>
      <artifactId>wrangler-test</artifactId>
      <version>${wrangler.version}</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>${junit.version}</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.1</version>
          <configuration>
            <source>1.7</source>
            <target>1.7</target>
          </configuration>
        </plugin>
        <plugin>
          <groupId>org.apache.felix</groupId>
          <artifactId>maven-bundle-plugin</artifactId>
          <version>2.3.7</version>
          <extensions>true</extensions>
          <configuration>
            <instructions>
              <Embed-Dependency>*;inline=false;scope=compile</Embed-Dependency>
              <Embed-Transitive>true</Embed-Transitive>
              <Embed-Directory>lib</Embed-Directory>
              <!--Only @Plugin classes in the export packages will be included as plugin-->
              <_exportcontents>org.example.directives.*</_exportcontents>
            </instructions>
          </configuration>
          <executions>
            <execution>
              <phase>package</phase>
              <goals>
                <goal>bundle</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
      </plugins>
    </pluginManagement>

    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.14.1</version>
      </plugin>
      <plugin>
        <groupId>org.apache.felix</groupId>
        <artifactId>maven-bundle-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
      </plugin>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-antrun-plugin</artifactId>
          <version>1.7</version>
          <executions>
            <!-- Create the config file for artifact which can be used to deploy the artifact.
                 Sets the parents field to system:cdap-etl-batch and system:cdap-etl-realtime with whatever
                 version range is set in the etl.versionRange property.
                 also sets a widget and doc property for each file contained in the widgets and docs directories. -->
            <execution>
              <id>create-artifact-config</id>
              <phase>prepare-package</phase>
              <configuration>
                <target>
                  <script language="javascript"> <![CDATA[

                  // for some reason, project.basedir evaluates to null if we just get the property here.
                  // so we set main.basedir to project.basedir in the pom properties, then main.basedir is used here
                  // where it evaluates correctly for whatever reason
                  var baseDir = project.getProperty("main.basedir");
                  var targetDir = project.getProperty("project.build.directory");
                  var artifactId = project.getProperty("project.artifactId");
                  var version = project.getProperty("project.version");

                  var cfgFile = new java.io.File(targetDir, artifactId + "-" + version + ".json");
                  if (!cfgFile.exists()) {
                    cfgFile.createNewFile();
                  }

                  var etlRange = project.getProperty("etl.versionRange");
                  var config = {
                    "parents": [
                      "system:wrangler-transform[1.0.0-SNAPSHOT, 10.0.0-SNAPSHOT]"
                    ],
                    "properties": {}
                  }

                  // look in widgets directory for widget config for each plugin
                  var widgetsDir = new java.io.File(baseDir, "widgets");
                  if (widgetsDir.isDirectory()) {
                    var widgetsFiles = widgetsDir.listFiles();
                    for (i = 0; i < widgetsFiles.length; i++) {
                      var widgetsFile = widgetsFiles[i];
                      if (widgetsFile.isFile()) {
                        var propertyName = "widgets." + widgetsFile.getName();
                        // if the filename ends with .json
                        if (propertyName.indexOf(".json", propertyName.length - 5) !== -1) {
                          // strip the .json
                          propertyName = propertyName.slice(0, -5);
                          var contents = new java.lang.String(java.nio.file.Files.readAllBytes(widgetsFile.toPath()), java.nio.charset.StandardCharsets.UTF_8);
                          var contentsAsJson = JSON.parse(contents);
                          config.properties[propertyName] = JSON.stringify(contentsAsJson);
                        }
                      }
                    }
                  }

                  // look in the docs directory for docs for each plugin
                  var docsDir = new java.io.File(baseDir, "docs");
                  if (docsDir.isDirectory()) {
                    var docFiles = docsDir.listFiles();
                    for (i = 0; i < docFiles.length; i++) {
                      var docFile = docFiles[i];
                      if (docFile.isFile()) {
                        var propertyName = "doc." + docFile.getName();
                        // if the filename ends with .md
                        if (propertyName.indexOf(".md", propertyName.length - 3) !== -1) {
                          // strip the extension
                          propertyName = propertyName.slice(0, -3);
                          var contents = new java.lang.String(java.nio.file.Files.readAllBytes(docFile.toPath()), java.nio.charset.StandardCharsets.UTF_8);
                          config.properties[propertyName] = contents + "";
                        }
                      }
                    }
                  }

                  var fw = new java.io.BufferedWriter(new java.io.FileWriter(cfgFile.getAbsoluteFile()));
                  fw.write(JSON.stringify(config, null, 2));
                  fw.close();
                ]]></script>
                </target>
              </configuration>
              <goals>
                <goal>run</goal>
              </goals>
            </execution>
          </executions>
        </plugin>
    </plugins>
  </build>

</project>