RDFTransferable.java

/**
 * Copyright 1999-2009 The Pegadi Team
 *
 * 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 org.pegadi.storysketch.views;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;

public class RDFTransferable implements Transferable {

    RDFItem item;

    DataFlavor rdfFlavor;

    String localRDFItemType = DataFlavor.javaJVMLocalObjectMimeType +
        ";class=pegadi.storysketch.views.RDFItem";
    private final Logger log = LoggerFactory.getLogger(getClass());

    public RDFTransferable(RDFItem item) {
        this.item = item;
        try {
            rdfFlavor = new DataFlavor(localRDFItemType);
        } catch (ClassNotFoundException e) {
            log.error("RDFTransferHandler: unable to create data flavor", e);
        }
    }

    public Object getTransferData(DataFlavor flavor)
        throws UnsupportedFlavorException {
        if (!isDataFlavorSupported(flavor)) {
            throw new UnsupportedFlavorException(flavor);
        }
        return item;
    }

    public DataFlavor[] getTransferDataFlavors() {
            return new DataFlavor[] { rdfFlavor};
    }

    public boolean isDataFlavorSupported(DataFlavor flavor) {
        return rdfFlavor.equals(flavor);
    }
}