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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.hosted.plugin;
import com.yahoo.config.application.XmlPreProcessor;
import com.yahoo.config.provision.InstanceName;
import com.yahoo.config.provision.Tags;
import com.yahoo.config.provision.zone.ZoneId;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.w3c.dom.Document;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.File;
import java.io.StringWriter;
import java.io.Writer;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
/**
* Computes the effective services.xml for the indicated zone.
*
* @author jonmv
* @author olaa
*/
@Mojo(name = "effectiveServices")
public class EffectiveServicesMojo extends AbstractVespaDeploymentMojo {
@Parameter(property = "servicesFile", defaultValue = "src/main/application/services.xml")
private String servicesFile;
@Parameter(property = "outputDirectory", defaultValue = "target")
private String outputDirectory;
@Override
protected void doExecute() throws Exception {
File services = new File(servicesFile);
if ( ! services.isFile())
throw new IllegalArgumentException(servicesFile + " does not exist. Set correct path with -DservicesFile=<path to services.xml>");
ZoneId zone = zoneOf(environment, region);
Path output = Paths.get(outputDirectory).resolve("services-" + zone.environment().value() + "-" + zone.region().value() + ".xml");
Tags tagz = Tags.fromString(tags);
Files.write(output, effectiveServices(services, zone, InstanceName.from(instance), tagz).getBytes(StandardCharsets.UTF_8));
getLog().info("Effective services for " + zone +
", instance " + instance +
( tags == null ? "" : ", tags '" + tagz + "'") +
" written to " + output);
}
static String effectiveServices(File servicesFile, ZoneId zone, InstanceName instance, Tags tags) throws Exception {
Document processedServicesXml = new XmlPreProcessor(servicesFile.getParentFile(),
servicesFile,
instance,
zone.environment(),
zone.region(),
tags)
.run();
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
Writer writer = new StringWriter();
transformer.transform(new DOMSource(processedServicesXml), new StreamResult(writer));
return writer.toString().replaceAll("\n(\\s*\n)+","\n");
}
}
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