/*

 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.Transferable;

import java.awt.datatransfer.UnsupportedFlavorException;

import java.io.IOException;

import java.net.URI;

import java.util.List;

class URIListTransferable implements Transferable {

    private final DataFlavor supportedFlavor;

    private List<URI> list;

    public URIListTransferable(List<URI> list) {

        try {

            this.supportedFlavor = new DataFlavor("text/uri-list;class=java.lang.String");

        } catch (ClassNotFoundException e) {

            throw new RuntimeException("FAILED: could not create a DataFlavor");

        }

        this.list = list;

    }

    public DataFlavor[] getTransferDataFlavors() {

        return new DataFlavor[] { supportedFlavor };

    }

    public boolean isDataFlavorSupported(DataFlavor flavor) {

        return supportedFlavor.equals(flavor);

    }

    public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {

        if (supportedFlavor.equals(flavor)) {

            return list.stream()

                    .map(URI::toASCIIString)

                    .collect(StringBuilder::new,

                             (builder, uri)-> { builder.append(uri).append("\r\n"); },

                             StringBuilder::append).toString();

        }

        throw new UnsupportedFlavorException(flavor);

    }

}