taverna-file-impl/src/main/java/org/apache/taverna/workbench/file/impl/OpenDataflowInfo.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 java.util.Date;

import org.apache.taverna.workbench.file.DataflowInfo;
import org.apache.taverna.workbench.file.FileType;

/**
 * Information about an open dataflow.
 * 
 * @author Stian Soiland-Reyes
 */
public class OpenDataflowInfo {
	private DataflowInfo dataflowInfo;
	private boolean isChanged;
	private Date openedAt;

	public OpenDataflowInfo() {
	}

	public FileType getFileType() {
		if (dataflowInfo == null)
			return null;
		return dataflowInfo.getFileType();
	}

	public Date getLastModified() {
		if (dataflowInfo == null)
			return null;
		return dataflowInfo.getLastModified();
	}

	public Date getOpenedAtDate() {
		return openedAt;
	}

	public Object getSource() {
		if (dataflowInfo == null)
			return null;
		return dataflowInfo.getCanonicalSource();
	}

	public boolean isChanged() {
		return isChanged;
	}

	public void setIsChanged(boolean isChanged) {
		this.isChanged = isChanged;
	}

	public synchronized void setOpenedFrom(DataflowInfo dataflowInfo) {
		setDataflowInfo(dataflowInfo);
		setOpenedAt(new Date());
		setIsChanged(false);
	}

	public synchronized void setSavedTo(DataflowInfo dataflowInfo) {
		setDataflowInfo(dataflowInfo);
		setIsChanged(false);
	}

	private void setDataflowInfo(DataflowInfo dataflowInfo) {
		this.dataflowInfo = dataflowInfo;
	}

	private void setOpenedAt(Date openedAt) {
		this.openedAt = openedAt;
	}

	public DataflowInfo getDataflowInfo() {
		return dataflowInfo;
	}
}