无法在Windows

Question

OrientDB版本2.1.8 GA。不支持具有UNC路径的数据库URL：

以下是演示错误的简单程序：

public class ConnectionString
{
  public static void main(String[] args)
  {
    String url = "plocal:\\\\srv\\db\\Database";
    ODatabaseDocumentTx db = null;

    try
    {
      db = new ODatabaseDocumentTx(url).open("admin", "admin");
      System.out.println("Database is opened");
    }
    finally
    {
      if(db != null)
        db.close();
    }
  }
}

将此代码调试到com.orientechnologies.orient.core.Orient类中的方法loadStorage(String iURL)：

  public OStorage loadStorage(String iURL) {
// iURL = "plocal://srv/db/Database" OK
    if (iURL == null || iURL.length() == 0)
      throw new IllegalArgumentException("URL missed");

    if (iURL.endsWith("/"))
      iURL = iURL.substring(0, iURL.length() - 1);

// This code comes too early. Engine prefix is not yet removed from the iURL    

    if (isWindowsOS()) {
      // WINDOWS ONLY: REMOVE DOUBLE SLASHES NOT AS PREFIX (WINDOWS PATH COULD NEED STARTING FOR "\\". EXAMPLE: "\\mydrive\db"). AT
      // THIS LEVEL BACKSLASHES ARRIVES AS SLASHES
      iURL = iURL.charAt(0) + iURL.substring(1).replace("//", "/");
// After that statement iURL = "plocal:/srv/db/Database" UNC prefix is lost!
    } else
      // REMOVE ANY //
      iURL = iURL.replace("//", "/");

    // SEARCH FOR ENGINE
    int pos = iURL.indexOf(':');
    if (pos <= 0)
      throw new OConfigurationException("Error in database URL: the engine was not specified. Syntax is: " + URL_SYNTAX
          + ". URL was: " + iURL);

稍后我们得到预期的异常：

Exception in thread "main" com.orientechnologies.orient.core.exception.OStorageException: Cannot open local storage '/srv/db/Database' with mode=rw
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:248)
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:252)
at com.riag.test.dbengine.skin.orientdb.ConnectionString.main(ConnectionString.java:22)