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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.container.plugin.mojo;
import org.apache.commons.io.FileUtils;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
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 java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
/**
* @author Tony Vaagenes
*/
@Mojo(name = "packageApplication", defaultPhase = LifecyclePhase.PACKAGE, threadSafe = true)
public class ApplicationMojo extends AbstractMojo {
@Parameter( defaultValue = "${project}", readonly = true )
protected MavenProject project;
@Parameter(defaultValue = "src/main/application")
private String sourceDir;
@Parameter(defaultValue = "target/application")
private String destinationDir;
@Override
public void execute() throws MojoExecutionException, MojoFailureException {
File applicationPackage = new File(project.getBasedir(), sourceDir);
File applicationDestination = new File(project.getBasedir(), destinationDir);
copyApplicationPackage(applicationPackage, applicationDestination);
File componentsDir = createComponentsDir(applicationDestination);
copyModuleBundles(project.getBasedir(), componentsDir);
copyBundlesForSubModules(componentsDir);
try {
Compression.zipDirectory(applicationDestination);
} catch (Exception e) {
throw new MojoExecutionException("Failed zipping application.", e);
}
}
private void copyBundlesForSubModules(File componentsDir) throws MojoExecutionException {
List<String> modules = emptyListIfNull(project.getModules());
for (String module : modules) {
File moduleDir = new File(project.getBasedir(), module);
if (moduleDir.exists()) {
copyModuleBundles(moduleDir, componentsDir);
}
}
}
private File createComponentsDir(File applicationDestination) throws MojoExecutionException {
File componentsDir = new File(applicationDestination, "components");
componentsDir.mkdir();
if (!componentsDir.exists() || !componentsDir.isDirectory()) {
throw new MojoExecutionException("Failed creating components directory (" + componentsDir + ")");
}
return componentsDir;
}
private void copyApplicationPackage(File applicationPackage, File applicationDestination) throws MojoExecutionException {
if (applicationPackage.exists()) {
try {
FileUtils.copyDirectory(applicationPackage, applicationDestination);
} catch (IOException e) {
throw new MojoExecutionException("Failed copying applicationPackage", e);
}
}
}
private void copyModuleBundles(File moduleDir, File componentsDir) throws MojoExecutionException {
File moduleTargetDir = new File(moduleDir, "target");
if (moduleTargetDir.exists()) {
File[] bundles = moduleTargetDir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.endsWith("-deploy.jar") || name.endsWith("-jar-with-dependencies.jar");
}
});
for (File bundle : bundles) {
try {
copyFile(bundle, new File(componentsDir, bundle.getName()));
} catch (IOException e) {
throw new MojoExecutionException("Failed copying bundle " + bundle, e);
}
}
}
}
private void copyFile(File source, File destination) throws IOException {
try (FileInputStream sourceStream = new FileInputStream(source);
FileOutputStream destinationStream = new FileOutputStream(destination)) {
Compression.copyBytes(sourceStream, destinationStream);
}
}
@SuppressWarnings("unchecked")
private <T> List<T> emptyListIfNull(List<T> modules) {
return modules == null ?
Collections.emptyList():
modules;
}
}
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