Package org.rascalmpl.interpreter.load

Source Code of org.rascalmpl.interpreter.load.StandardLibraryContributor$InstanceHolder

/*******************************************************************************
* Copyright (c) 2011-2013 CWI
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:

*   * Jurgen J. Vinju - Jurgen.Vinju@cwi.nl - CWI
*   * Atze van der Ploeg - A.J.van.der.Ploeg@cwi.nl - CWI
*   * Davy Landman  - Davy.Landman@cwi.nl
*******************************************************************************/
package org.rascalmpl.interpreter.load;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;

import org.rascalmpl.interpreter.utils.RascalManifest;
import org.rascalmpl.uri.URIUtil;


public class StandardLibraryContributor implements
    IRascalSearchPathContributor {
 
  private StandardLibraryContributor() { }
 
  private static class InstanceHolder {
    public static StandardLibraryContributor sInstance = new StandardLibraryContributor();
  }
 
  @Override
  public String getName() {
    return "std";
  }
 
  public static StandardLibraryContributor getInstance() {
    return InstanceHolder.sInstance;
  }
 
  public void contributePaths(List<URI> l) {
    String property = java.lang.System.getProperty("rascal.path");

    if (property != null) {
      for (String path : property.split(":")) {
        try {
          if (path.endsWith(".jar")) {
            // TODO: test this new functionality
            for (String root: new RascalManifest().getSourceRoots(new File(path))) {
              l.add(URIUtil.fixUnicode(URIUtil.create("jar","",path + "!" + root)));
            }
          }
          else {
            l.add(URIUtil.fixUnicode(new File(path).toURI()));
          }
        } catch (URISyntaxException e) {
        }
      }
    }
    l.add(URIUtil.rootScheme("cwd"));
    l.add(URIUtil.rootScheme("std"));
    l.add(URIUtil.rootScheme("testdata"));
    l.add(URIUtil.rootScheme("benchmarks"));
  }

  @Override
  public String toString() {
    return "[current wd and stdlib]";
  }
 
  @Override
  public boolean equals(Object obj) {
    return obj == this;
  }
}
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