/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

package com.nokia.mj.impl.gcf.utils;

import com.nokia.mj.impl.rt.support.Jvm;

/**

Parses the basic elements of a URI, i.e. scheme, target, parameters

*/

public final class URI

{

    private static final int PROTOCOL = 1;

    private static final int TARGET = 2;

    private static final int HOST = 3;

    private static final int PORT = 4;

    private static final int PATH = 5;

    private static final int PARAMETER = 6;

    private static final int QUERY = 7;

    private static final String EMPTY_STRING = "";

    private final String iFullURI;

    private final int[] iErrorCache;

    static

    {

        try

        {

            // Load the native libraries

            Jvm.loadSystemLibrary("javagcf");

        }

        catch (Exception e)

        {

            StreamsLogger.ELog("Unable to load native libraries!");

        }

    }

    public URI(String aURIString)

    {

        iErrorCache = new int[1];

        iFullURI = aURIString;

    }

    private String parse(int aUriPortion)

    {

        return parse(aUriPortion, null);

    }

    private String parse(int aUriPortion, String aParameterName)

    {

        int error = 0;

        String value = null;

        synchronized (this)

        {

            value = _parse(iFullURI, aUriPortion, aParameterName, iErrorCache);

            error = iErrorCache[0];

        }

        //JDEBUG( "parse : value = " + value );

        if (value == null)

        {

            if (error == -1)    //KErrNotFound

            {

                return EMPTY_STRING;

            }

            if (error != 0)

            {

                throw new IllegalArgumentException();

            }

        }

        return value;

    }

    private native String _parse(String aURI, int aUriPortion, String aParameterName,

                                 int[] aError);

    public String getProtocol()

    {

        return parse(PROTOCOL);

    }

    public String getHost()

    {

        return parse(HOST);

    }

    public String getPort()

    {

        return parse(PORT);

    }

    public String getPath()

    {

        return parse(PATH);

    }

    public String getParameter(String aParameterName)

    {

        return parse(PARAMETER, aParameterName);

    }

    public String getQuery()

    {

        return parse(QUERY);

    }

    public String toString()

    {

        return iFullURI;

    }

}