/*
 * Copyright (c) 1998-2007 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *   Free SoftwareFoundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Emil Ong
 */

package com.caucho.xml.schema;

import java.io.*;
import java.net.*;
import java.util.*;
import static javax.xml.XMLConstants.*;
import javax.xml.bind.*;
import javax.xml.bind.annotation.*;
import javax.xml.stream.Location;

import com.caucho.jaxb.annotation.XmlLocation;

/**
 * JAXB annotated Schema data structure.
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name="import", namespace=W3C_XML_SCHEMA_NS_URI)
public class Import {
  /** the imported schema */
  @XmlTransient
  private Schema _schema;

  @XmlAttribute(name="namespace")
  private String _namespace;

  @XmlAttribute(name="schemaLocation")
  private String _schemaLocation;

  @XmlLocation
  private Location _location;

  public String getNamespace()
  {
    return _namespace;
  }

  public String getSchemaLocation()
  {
    return _schemaLocation;
  }

  public void resolve(Unmarshaller u)
    throws JAXBException
  {
    Object obj = null;

    try {
      obj = u.unmarshal(new URL(getSchemaLocation()));
    }
    catch (MalformedURLException e) {
    }

    File file = new File(getSchemaLocation());

    if (! file.exists()) {
      if (! file.getName().startsWith("/")) {
        file = new File(_location.getSystemId());

        file = file.getParentFile();

        if (file == null)
          throw new JAXBException("File not found: " + getSchemaLocation());

        file = new File(file, getSchemaLocation());
      }
    }

    obj = u.unmarshal(file);

    if (obj instanceof Schema)
      _schema = (Schema) obj;
  }

  public Schema getSchema()
  {
    return _schema;
  }
}
