org.kawanfw.sql.jdbc.http.JdbcHttpTransferUtil Maven / Gradle / Ivy

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/*
 * This file is part of AceQL. 
 * AceQL: Remote JDBC access over HTTP.                                     
 * Copyright (C) 2015,  KawanSoft SAS
 * (http://www.kawansoft.com). All rights reserved.                                
 *                                                                               
 * AceQL is free software; you can redistribute it and/or                 
 * modify it under the terms of the GNU Lesser General Public                    
 * License as published by the Free Software Foundation; either                  
 * version 2.1 of the License, or (at your option) any later version.            
 *                                                                               
 * AceQL 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.  See the GNU             
 * Lesser General Public License for more details.                               
 *                                                                               
 * You should have received a copy of the GNU Lesser General Public              
 * License along with this library; if not, write to the Free Software           
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  
 * 02110-1301  USA
 *
 * Any modifications to this file must keep this entire header
 * intact.
 */
package org.kawanfw.sql.jdbc.http;

import java.io.IOException;
import java.net.ConnectException;
import java.net.MalformedURLException;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.sql.SQLException;

import org.kawanfw.commons.api.client.InvalidLoginException;
import org.kawanfw.commons.api.client.RemoteException;
import org.kawanfw.sql.api.client.InvalidatedSessionException;
import org.kawanfw.sql.util.SqlReturnCode;

/**
 * Utility methods for JdbcHttpTransfer
 * 
 * @author Nicolas de Pomereu
 */
public class JdbcHttpTransferUtil {

    /**
     * Protected constructor, not callable
     */
    protected JdbcHttpTransferUtil() {

    }

    /**
     * Throws back the trapped Exception throw by HttpTransfer as SQLException
     * 
     * @param e
     *            the Exception thrown by HttpTransfer call
     * 
     * @throws SQLException
     *             the wrapped thrown Exception:
     */
    public static void wrapExceptionAsSQLException(Exception e)
	    throws SQLException {
	/*
	 * UnknownHostException, ConnectException, SocketException,
	 * RemoteException, SecurityException, IOException,
	 */

	if (e instanceof UnknownHostException) {
	    UnknownHostException wrappedException = (UnknownHostException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else if (e instanceof ConnectException) {
	    ConnectException wrappedException = (ConnectException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else if (e instanceof SocketException) {
	    SocketException wrappedException = (SocketException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else if (e instanceof MalformedURLException) {
	    MalformedURLException wrappedException = (MalformedURLException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else if (e instanceof InvalidLoginException) {
	    throw new SQLException(e);
	}

	// Must be done before IOException
	else if (e instanceof RemoteException) {
	    RemoteException wrappedException = (RemoteException) e;

	    // Special case if message is SESSION_INVALIDATED
	    if (wrappedException.getMessage() != null
		    && wrappedException.getMessage().trim()
			    .equals(SqlReturnCode.SESSION_INVALIDATED)) {
		throw new SQLException(new InvalidatedSessionException());
	    } else {
		throw new SQLException(wrappedException.getMessage(),
			wrappedException);
	    }
	}

	else if (e instanceof SecurityException) {
	    SecurityException wrappedException = (SecurityException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	    // SecurityException wrappedException = (SecurityException) e;
	    // throw wrappedException;
	}

	else if (e instanceof IOException) // IOException thrown by local code
	{
	    IOException wrappedException = (IOException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else if (e instanceof InterruptedException) // InterruptedException
						      // thrown by local code
	{
	    InterruptedException wrappedException = (InterruptedException) e;
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	} else {
	    // Other Exceptions...
	    IOException wrappedException = new IOException(e);
	    throw new SQLException(wrappedException.getMessage(),
		    wrappedException);
	}
    }

}