package org.argeo.osgi.a2;
   
   import java.io.File;
   import java.io.IOException;
   import java.nio.file.FileVisitResult;
   import java.nio.file.Files;
   import java.nio.file.Path;
   import java.nio.file.Paths;
   import java.nio.file.SimpleFileVisitor;
  import java.nio.file.attribute.BasicFileAttributes;
  
  import org.argeo.osgi.boot.OsgiBootUtils;
  import org.osgi.framework.Version;
  
  /** A file system {@link AbstractProvisioningSource} in Maven 2 format. */
  public class FsM2Source extends AbstractProvisioningSource {
  	private final Path base;
  
  	public FsM2Source(Path base) {
  		super();
  		this.base = base;
  	}
  
  	void load() throws IOException {
  		Files.walkFileTree(base, new ArtifactFileVisitor());
  	}
  
  	class ArtifactFileVisitor extends SimpleFileVisitor<Path> {
  
  		@Override
  		public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
  			// OsgiBootUtils.debug("Processing " + file);
  			if (file.toString().endsWith(".jar")) {
  				Version version;
  				try {
  					version = new Version(readVersionFromModule(file));
  				} catch (Exception e) {
  					// ignore non OSGi
  					return FileVisitResult.CONTINUE;
  				}
  				String moduleName = readSymbolicNameFromModule(file);
  				Path groupPath = file.getParent().getParent().getParent();
  				Path relGroupPath = base.relativize(groupPath);
  				String contributionName = relGroupPath.toString().replace(File.separatorChar, '.');
  				A2Contribution contribution = getOrAddContribution(contributionName);
  				A2Component component = contribution.getOrAddComponent(moduleName);
  				A2Module module = component.getOrAddModule(version, file);
  				if (OsgiBootUtils.isDebug())
  					OsgiBootUtils.debug("Registered " + module);
  			}
  			return super.visitFile(file, attrs);
  		}
  
  	}
  
  	public static void main(String[] args) {
  		try {
  			FsM2Source context = new FsM2Source(Paths.get("/home/mbaudier/.m2/repository"));
  			context.load();
  			context.asTree();
  		} catch (Exception e) {
  			e.printStackTrace();
  		}
  	}
  
  }