/*
 * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
 *
 * Copyright @ 2015 Atlassian Pty Ltd
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.java.sip.communicator.impl.protocol.jabber;

import java.io.*;

import net.java.sip.communicator.service.protocol.*;

import org.jivesoftware.smackx.filetransfer.*;

/**
 * The Jabber protocol extension of the <tt>AbstractFileTransfer</tt>.
 *
 * @author Yana Stamcheva
 */
public class IncomingFileTransferJabberImpl
    extends AbstractFileTransfer
{
    private final String id;

    private final Contact sender;

    private final File file;

    /**
     * The Jabber incoming file transfer.
     */
    private IncomingFileTransfer jabberTransfer;

    /**
     * Creates an <tt>IncomingFileTransferJabberImpl</tt>.
     *
     * @param id the identifier of this transfer
     * @param sender the sender of the file
     * @param file the file
     * @param jabberTransfer the Jabber file transfer object
     */
    public IncomingFileTransferJabberImpl(  String id,
                                            Contact sender,
                                            File file,
                                            IncomingFileTransfer jabberTransfer)
    {
        this.id = id;
        this.sender = sender;
        this.file = file;
        this.jabberTransfer = jabberTransfer;
    }

    /**
     * Cancels the file transfer.
     */
    @Override
    public void cancel()
    {
        this.jabberTransfer.cancel();
    }

    /**
     * Returns the number of bytes already received from the recipient.
     *
     * @return the number of bytes already received from the recipient
     */
    @Override
    public long getTransferedBytes()
    {
        return jabberTransfer.getAmountWritten();
    }

    /**
     * The direction is incoming.
     *
     * @return IN
     */
    public int getDirection()
    {
        return IN;
    }

    /**
     * Returns the sender of the file.
     *
     * @return the sender of the file
     */
    public Contact getContact()
    {
        return sender;
    }

    /**
     * Returns the identifier of this file transfer.
     *
     * @return the identifier of this file transfer
     */
    public String getID()
    {
        return id;
    }

    /**
     * Returns the local file that is being transferred or to which we transfer.
     *
     * @return the file
     */
    public File getLocalFile()
    {
        return file;
    }
}