Importer.java

/**
 * Copyright © 2016, QIAGEN Aarhus A/S. All rights reserved.
 */
package com.qiagen.sky.buildutil;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * run as java Importer [dirtosearch]
 **/
public class Importer {
    private static final String REPO_ID = "nexus-releases";
    private static final String REPO_URL = "http://nexus01/nexus/repository/maven-releases/";
    private static final String MVN_CLI = "mvn";
    
    private String directory;
    private PrintWriter out;
    
    /**
     * @param directory
     *            local repository directory
     */
    public Importer(String directory) {
        super();
        this.directory = directory;
        this.out = new PrintWriter(System.out);
    }
    
    // SUPPRESS CHECKSTYLE Importer main
    public static void main(String[] args) {
        Importer importer = new Importer(args.length > 0 ? args[0] : "../repo/");
        importer.go();
    }
    
    private void go() {
        try {
            File dir = new File(directory).getAbsoluteFile();
            
            doDir(dir);
        }
        catch (Throwable e) {
            e.printStackTrace(out);
        }
        this.out.close();
    }
    
    private void doDir(File dir) throws IOException, InterruptedException {
        File[] listFiles = dir.listFiles(new PomFilter());
        if (listFiles != null) {
            for (File pom : listFiles) {
                doPom(pom);
            }
        }
        
        File[] listDirs = dir.listFiles(new DirFilter());
        if (listDirs != null) {
            for (File subdir : listDirs) {
                doDir(subdir);
            }
        }
    }
    
    private void doPom(File pom) throws IOException, InterruptedException {
        File base = pom.getParentFile();
        String fileName = pom.getName();
        String jarName = fileName.substring(0, fileName.length() - 3) + "jar";
        File jar = new File(base.getAbsolutePath() + "/" + jarName);
        
        String exec = MVN_CLI
                + " deploy:deploy-file -DrepositoryId="
                + REPO_ID
                + " -Durl=" + REPO_URL;
        if (jar.exists()) {
            exec += " -Dfile=\"" + jar.getAbsolutePath() + "\"";
        }
        else {
            exec += " -Dfile=\"" + pom.getAbsolutePath() + "\"";
        }
        exec += " -DpomFile=\"" + pom.getAbsolutePath() + "\"";
        exec(exec);
    }
    
    private void exec(String exec) throws InterruptedException, IOException {
        out.println(exec);
    }
    
    private class PomFilter implements java.io.FileFilter {
        
        @Override
        public boolean accept(File pathname) {
            return pathname.getName().endsWith(".pom");
        }
    }
    
    private class DirFilter implements java.io.FileFilter {
        
        @Override
        public boolean accept(File pathname) {
            return pathname.isDirectory();
        }
    }
}

Source: http://www.devgrok.com/2012/01/bulk-upload-of-maven-artifacts-to.html