taverna-workbench-results-view/src/main/java/net/sf/taverna/t2/workbench/views/results/processor/ProcessorResultTreeNode.java

/*******************************************************************************
 * Copyright (C) 2007 The University of Manchester
 *
 *  Modifications to the initial code base are copyright of their
 *  respective authors, or their employers as appropriate.
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1 of
 *  the License, or (at your option) any later version.
 *
 *  This program 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 ******************************************************************************/
package net.sf.taverna.t2.workbench.views.results.processor;

import java.nio.file.Path;

import javax.swing.tree.DefaultMutableTreeNode;

import net.sf.taverna.t2.workbench.views.results.workflow.WorkflowResultTreeNode.ResultTreeNodeState;

import org.apache.log4j.Logger;

/**
 * A node in the processor result tree - can be a single data item, a list of data items or
 * tree root.
 *
 * @author Alex Nenadic
 * @author David Withers
 */
@SuppressWarnings("serial")
public class ProcessorResultTreeNode extends DefaultMutableTreeNode {
	public enum ProcessorResultTreeNodeState {
		RESULT_TOP, RESULT_LIST, RESULT_REFERENCE
	};

	@SuppressWarnings("unused")
	private static final Logger logger = Logger
			.getLogger(ProcessorResultTreeNode.class);

	private ProcessorResultTreeNodeState state;
	private Path reference; // reference to actual data if this node is a data node
	private int listSize; // number of element if this node is a list

	// Create root node
	public ProcessorResultTreeNode() {
		this.state = ProcessorResultTreeNodeState.RESULT_TOP;
	}

	// Create data node
	public ProcessorResultTreeNode(Path reference) {
		this.reference = reference;
		this.state = ProcessorResultTreeNodeState.RESULT_REFERENCE;
	}

	// Create list node
    public ProcessorResultTreeNode(int listSize, Path reference) {
		this.listSize = listSize;
		this.reference = reference;
		this.state = ProcessorResultTreeNodeState.RESULT_LIST;
	}

	public ProcessorResultTreeNodeState getState() {
		return state;
	}

	public void setState(ProcessorResultTreeNodeState state) {
		this.state = state;
	}

	public Path getReference() {
		return reference;
	}

	public void setReference(Path reference) {
		this.reference = reference;
	}

	@Override
	public String toString() {
		if (state.equals(ProcessorResultTreeNodeState.RESULT_TOP))
			return "Results:";
		if (state.equals(ProcessorResultTreeNodeState.RESULT_LIST)) {
			if (getChildCount() == 0)
				return "Empty list";
			return "List with " + listSize + " values";
		}
		return reference.toString();
	}

	public boolean isState(ProcessorResultTreeNodeState state) {
		return this.state.equals(state);
	}

	public int getValueCount() {
		int result = 0;
		if (isState(ProcessorResultTreeNodeState.RESULT_REFERENCE))
			result = 1;
		else if (isState(ProcessorResultTreeNodeState.RESULT_LIST)) {
			int childCount = getChildCount();
			for (int i = 0; i < childCount; i++) {
				ProcessorResultTreeNode child = (ProcessorResultTreeNode) getChildAt(i);
				result += child.getValueCount();
			}
		}
		return result;
	}

	public int getSublistCount() {
		int result = 0;
		if (isState(ProcessorResultTreeNodeState.RESULT_LIST)) {
			int childCount = this.getChildCount();
			for (int i = 0; i < childCount; i++) {
				ProcessorResultTreeNode child = (ProcessorResultTreeNode) getChildAt(i);
				if (child.isState(ProcessorResultTreeNodeState.RESULT_LIST))
					result++;
			}
		}
		return result;
	}

//	public Object getAsObject() {
//		if (reference != null) {
//		Identified identified = referenceService
//		.resolveIdentifier(reference, null, null);
//		if (identified instanceof ErrorDocument) {
//			ErrorDocument errorDocument = (ErrorDocument) identified;
//			return errorDocument.getMessage();
//		}
//		}
//		if (isState(ProcessorResultTreeNodeState.RESULT_TOP)) {
//			if (getChildCount() == 0) {
//				return null;
//			}
//			else {
//				return ((ProcessorResultTreeNode) getChildAt(0)).getAsObject();
//			}
//		}
//		if (isState(ProcessorResultTreeNodeState.RESULT_LIST)) {
//			List<Object> result = new ArrayList<Object>();
//			for (int i = 0; i < getChildCount(); i++) {
//				ProcessorResultTreeNode child = (ProcessorResultTreeNode) getChildAt(i);
//				result.add (child.getAsObject());
//			}
//			return result;
//		}
//		if (reference == null) {
//			return null;
//		}
////		if (context.getReferenceService() == null) {
////			return null;
////		}
//		try {
//			Object result = referenceService.renderIdentifier(reference, Object.class, null);
//			return result;
//		}
//		catch (Exception e) {
//			// Not good to catch exception but
//			return null;
//		}
//	}

	public boolean isState(ResultTreeNodeState state) {
		return this.state.equals(state);
	}

	public void setListSize(int listSize) {
		this.listSize = listSize;
	}

	public int getListSize() {
		return listSize;
	}
}