xuri.java

/**
 * $Id: xfile.java 112 2009-01-04 23:49:22Z daldei $
 * $Date: 2009-01-04 18:49:22 -0500 (Sun, 04 Jan 2009) $
 *
 */

package org.xmlsh.internal.commands;

import java.io.File;
import java.io.PrintWriter;
import java.net.URI;
import java.net.URL;
import java.util.List;
import org.xmlsh.core.InvalidArgumentException;
import org.xmlsh.core.Options;
import org.xmlsh.core.XCommand;
import org.xmlsh.core.XValue;
import org.xmlsh.sh.shell.SerializeOpts;
import org.xmlsh.util.Util;

/**
 * xuri exposes the java URI class as a shell command
 * 
 * Input is a filename either
 * URI (string)
 * parent URI child URI
 * 
 * 
 */
public class xuri extends XCommand {
  /*
   * Get an arg and return null if empty
   */
  private static String getArg(List<XValue> args, int num) {
    String value = args.get(num).toString();
    return Util.isEmpty(value) ? null : value;

  }

  @Override
  public int run(List<XValue> args) throws Exception {

    Options opts = new Options(
        "a=authority,f=fragment,h=host,p=path,P=port,q=query,s=scheme,r=resource:,Q",
        SerializeOpts.getOptionDefs());
    opts.parse(args);
    args = opts.getRemainingArgs();

    SerializeOpts serializeOpts = getSerializeOpts(opts);
    PrintWriter out = getEnv().getStdout().asPrintWriter(serializeOpts);
    boolean bIsQuoted = opts.hasOpt("Q"); // query string is pre-quoted

    URI uri = null;

    if(opts.hasOpt("r")) {
      String res = opts.getOptString("r", "");
      URL url = getEnv().getShell().getResource(res);
      if(url == null)
        throw new InvalidArgumentException("Resource not found: " + res);

      uri = url.toURI();

    }

    String query;

    if(uri == null)
      switch(args.size()){
      case 0:
        uri = getEnv().getCurdir().toURI();
        break;
      case 1:
        uri = new URI(getArg(args, 0));

        break;

      case 2:
        uri = new URI(getArg(args, 0));
        uri = uri.resolve(getArg(args, 1));
        break;

      case 3:
        uri = new URI(
            getArg(args, 0),
            getArg(args, 1),
            getArg(args, 2));
        break;

      case 4:
        uri = new URI(
            getArg(args, 0),
            getArg(args, 1),
            getArg(args, 2),
            getArg(args, 3));

        break;
      case 5:
        query = getArg(args, 3);
        if(query == null)
          bIsQuoted = false;
        uri = new URI(
            getArg(args, 0),
            getArg(args, 1),
            getArg(args, 2),
            bIsQuoted ? null : query, // query
            getArg(args, 4));
        if(bIsQuoted)
          uri = new URI(uri.toString() + "?" + query);
        break;
      case 7:
        query = getArg(args, 5);
        if(query == null)
          bIsQuoted = false;

        uri = new URI(
            getArg(args, 0),
            getArg(args, 1),
            getArg(args, 2),
            Util.parseInt(getArg(args, 3), -1),
            getArg(args, 4),
            bIsQuoted ? null : query, // query
            getArg(args, 6));
        if(bIsQuoted)
          uri = new URI(uri.toString() + "?" + query);

        break;
      }

    /*
     * if there is no scheme
     * then treat as a FILE URI
     */
    if(uri.getScheme() == null)
      uri = new File(getArg(args, 0)).toURI();

    if(opts.hasOpt("a"))
      out.println(uri.getAuthority());
    else if(opts.hasOpt("f"))
      out.println(uri.getFragment());
    else if(opts.hasOpt("h"))
      out.println(uri.getHost());
    else if(opts.hasOpt("p"))
      out.println(uri.getPath());
    else if(opts.hasOpt("P"))
      out.println(uri.getPort());
    else if(opts.hasOpt("q")) {

      out.println(uri.getQuery());
    }
    else if(opts.hasOpt("s"))
      out.println(uri.getScheme());
    else if(opts.hasOpt("S"))
      out.println(uri.getSchemeSpecificPart());
    else
      out.println(uri);

    out.flush();

    return 0;

  }

}

//
//
// Copyright (C) 2008-2014 David A. Lee.
//
// The contents of this file are subject to the "Simplified BSD License" (the
// "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the
// License at http://www.opensource.org/licenses/bsd-license.php
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is: all this file.
//
// The Initial Developer of the Original Code is David A. Lee
//
// Portions created by (your name) are Copyright (C) (your legal entity). All
// Rights Reserved.
//
// Contributor(s): none.
//