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GenerateMojo.java
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GenerateMojo.java
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package com.github.bannmann.maven.silverchain;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.LifecyclePhase;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.project.MavenProject;
import silverchain.Silverchain;
import silverchain.SilverchainException;
import silverchain.generator.JavaGenerator;
import silverchain.parser.ParseException;
import silverchain.validator.JavaValidator;
/**
* Invokes Silverchain for an {@code .ag} file.
*/
@Mojo(name = "generate", defaultPhase = LifecyclePhase.GENERATE_SOURCES)
public class GenerateMojo extends AbstractMojo
{
/**
* Input grammar file.
*/
@Parameter(property = "silverchain.inputFile", required = true)
private File inputFile;
/**
* Output directory.
*/
@Parameter(defaultValue = "${project.build.directory}/generated-sources/silverchain",
property = "silverchain.outputDirectory",
required = true)
private File outputDirectory;
/**
* Javadoc source directory.
*/
@Parameter(defaultValue = "${project.build.sourceDirectory}",
property = "silverchain.javadocSourceDirectory",
required = true)
private File javadocSourceDirectory;
/**
* Max number of generated files.
*/
@Parameter(defaultValue = "500", property = "maxFileCount", required = true)
private int maxFileCount;
@Parameter(defaultValue = "${project}", readonly = true)
private MavenProject project;
public void execute() throws MojoExecutionException
{
Silverchain silverchain = new Silverchain();
silverchain.generatorProvider(JavaGenerator::new);
silverchain.validatorProvider(JavaValidator::new);
silverchain.warningHandler(warning -> getLog().warn(warning.toString()));
Path outputDirectoryPath = outputDirectory.toPath();
silverchain.outputDirectory(outputDirectoryPath);
silverchain.maxFileCount(maxFileCount);
try (InputStream inputStream = Files.newInputStream(inputFile.toPath()))
{
silverchain.run(inputStream,
javadocSourceDirectory.toPath()
.toAbsolutePath()
.toString());
}
catch (IOException | ParseException | SilverchainException e)
{
throw new MojoExecutionException("Could not generate API", e);
}
project.addCompileSourceRoot(outputDirectoryPath.toString());
}
}