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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.application.preprocessor;
import com.yahoo.config.application.api.ApplicationPackage;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.config.model.application.provider.BaseDeployLogger;
import com.yahoo.config.model.application.provider.FilesApplicationPackage;
import com.yahoo.config.provision.*;
import com.yahoo.yolean.Exceptions;
import org.xml.sax.SAXException;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import java.io.File;
import java.io.IOException;
import java.util.Optional;
/**
* Main entry for preprocessing an application package.
*
* @author Ulf Lilleengen
*/
public class ApplicationPreprocessor {
private final File applicationDir;
private final Optional<File> outputDir;
private final Optional<Environment> environment;
private final Optional<RegionName> region;
public ApplicationPreprocessor(File applicationDir, Optional<File> outputDir, Optional<Environment> environment, Optional<RegionName> region) {
this.applicationDir = applicationDir;
this.outputDir = outputDir;
this.environment = environment;
this.region = region;
}
public void run() throws IOException, TransformerException, ParserConfigurationException, SAXException {
DeployLogger logger = new BaseDeployLogger();
FilesApplicationPackage.Builder applicationPackageBuilder = new FilesApplicationPackage.Builder(applicationDir);
outputDir.ifPresent(applicationPackageBuilder::preprocessedDir);
ApplicationPackage preprocessed = applicationPackageBuilder.build().preprocess(
new Zone(environment.orElse(Environment.defaultEnvironment()), region.orElse(RegionName.defaultName())),
(a, b) -> { },
logger);
preprocessed.validateXML();
}
public static void main(String args[]) {
int argCount = args.length;
if (argCount < 1) {
System.out.println("Usage: application-preprocessor <application> [environment] [region] [outputDirectory]");
System.exit(1);
}
File applicationDir = new File(args[0]);
Optional<Environment> environment = (argCount > 1) ? Optional.of(Environment.valueOf(args[1])) : Optional.empty();
Optional<RegionName> region = (argCount > 2) ? Optional.of(RegionName.from(args[2])) : Optional.empty();
Optional<File> outputDir = (argCount > 3) ? Optional.of(new File(args[3])) : Optional.empty();
ApplicationPreprocessor preprocessor = new ApplicationPreprocessor(applicationDir, outputDir, environment, region);
try {
preprocessor.run();
System.out.println("Application preprocessed successfully. Preprocessed application stored in " + new File(applicationDir, ".preprocessed").getAbsolutePath());
} catch (Exception e) {
System.err.println("Error validating application package: " + Exceptions.toMessageString(e));
System.exit(1);
}
}
}
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