taverna-file-impl/src/main/java/org/apache/taverna/workbench/file/impl/OpenDataflowSwingWorker.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.taverna.workbench.file.impl;

import javax.swing.SwingWorker;

import org.apache.taverna.workbench.file.FileType;
import org.apache.taverna.workbench.file.exceptions.OpenException;

import org.apache.log4j.Logger;

import org.apache.taverna.scufl2.api.container.WorkflowBundle;

public class OpenDataflowSwingWorker extends
		SwingWorker<WorkflowBundle, Object> {
	@SuppressWarnings("unused")
	private Logger logger = Logger.getLogger(OpenDataflowSwingWorker.class);
	private FileType fileType;
	private Object source;
	private FileManagerImpl fileManagerImpl;
	private WorkflowBundle workflowBundle;
	private OpenException e = null;

	public OpenDataflowSwingWorker(FileType fileType, Object source,
			FileManagerImpl fileManagerImpl) {
		this.fileType = fileType;
		this.source = source;
		this.fileManagerImpl = fileManagerImpl;
	}

	@Override
	protected WorkflowBundle doInBackground() throws Exception {
		try {
			workflowBundle = fileManagerImpl.performOpenDataflow(fileType,
					source);
		} catch (OpenException e) {
			this.e = e;
		}
		return workflowBundle;
	}

	public WorkflowBundle getDataflow() {
		return workflowBundle;
	}

	public OpenException getException() {
		return e;
	}
}