ProjectClassLoaderFactory.java

package com.github.searls.jasmine.thirdpartylibs;

import org.apache.maven.artifact.Artifact;

import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class ProjectClassLoaderFactory {

  private final Set<Artifact> artifacts;

  public ProjectClassLoaderFactory() {
    this(new HashSet<Artifact>());
  }

  public ProjectClassLoaderFactory(Set<Artifact> artifacts) {
    this.artifacts = artifacts;
  }

  public ClassLoader create() {
    final List<String> classpathElements = new ArrayList<String>();
    for (Artifact artifact : artifacts) {
      classpathElements.add(artifact.getFile().getAbsolutePath());
    }
    return createURLClassLoader(classpathElements);
  }

  private ClassLoader createURLClassLoader(final List<String> classpathElements) {
    final List<URL> urls = new ArrayList<URL>();
    try {
      for (final String element : classpathElements) {
        final File elementFile = new File(element);
        urls.add(elementFile.toURI().toURL());
      }
    } catch (final Exception e) {
      throw new RuntimeException(e);
    }
    return new URLClassLoader(urls.toArray(new URL[urls.size()]), Thread.currentThread().getContextClassLoader());
  }
}