DocumentHandler.java

/*
 *  DocumentHandler.java
 *  Eisenkraut
 *
 *  Copyright (c) 2004-2016 Hanns Holger Rutz. All rights reserved.
 *
 *  This software is published under the GNU General Public License v3+
 *
 *
 *	For further information, please contact Hanns Holger Rutz at
 *	contact@sciss.de
 */

package de.sciss.eisenkraut.session;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

import de.sciss.app.Document;
import de.sciss.eisenkraut.Main;
import de.sciss.eisenkraut.net.OSCRoot;
import de.sciss.eisenkraut.net.OSCRouter;
import de.sciss.eisenkraut.net.OSCRouterWrapper;
import de.sciss.eisenkraut.net.RoutedOSCMessage;

public class DocumentHandler
		extends de.sciss.app.AbstractDocumentHandler
		implements OSCRouter {

	private static final String OSC_DOC			= "doc";
	// sub level
	private static final String OSC_ACTIVE		= "active";
	private static final String OSC_INDEX		= "index";
	private static final String OSC_ID			= "id";

	// key = Integer( nodeID ) ; value = Session
	private final Map<Integer, Document> mapIDs;
	
	private final OSCRouterWrapper	osc;
	private final Main				root;

	public DocumentHandler(Main root) {
		super(true);    // we are multi-document aware
		this.root = root;
		this.osc = new OSCRouterWrapper(OSCRoot.getInstance(), this);
		mapIDs = new HashMap<Integer, Document>();
	}

	public void addDocument(Object source, Document doc) {
		synchronized (this.sync) {
			super.addDocument(source, doc);
			this.mapIDs.put(((Session) doc).getNodeID(), doc);
		}
	}

	public void removeDocument(Object source, Document doc) {
		synchronized (this.sync) {
			this.mapIDs.remove(((Session) doc).getNodeID());
			super.removeDocument(source, doc);
		}
	}

	// ------------- OSCRouter interface -------------
	
	public String oscGetPathComponent()
	{
		return OSC_DOC;
	}
	
	public void oscRoute( RoutedOSCMessage rom )
	{
		if( rom.hasNext() ) {	// special handling here as documents can be accessed with different paths
			oscRouteNext( rom.next() );
		} else {
			osc.oscRoute( rom );
		}
	}
	
	private void oscRouteNext( RoutedOSCMessage rom ) throws NumberFormatException {
		final String	subPath;
		final Document	doc;
		
		try {
			subPath = rom.getPathComponent();

			if (subPath.equals(OSC_ACTIVE)) {
				doc = getActiveDocument();
			} else if (subPath.equals(OSC_ID)) {
				rom = rom.next();
				final Integer id = new Integer(rom.getPathComponent());
				synchronized (this.sync) {
					doc = this.mapIDs.get(id);
				}
			} else if (subPath.equals(OSC_INDEX)) {
				rom = rom.next();
				final int idx = Integer.parseInt(rom.getPathComponent());
				if (getDocumentCount() > idx) {
					doc = getDocument(idx);
				} else {
					doc = null;
				}
			} else {
				OSCRoot.failedUnknownPath(rom);
				return;
			}

			if( doc == null ) {
				OSCRoot.failed( rom.msg, "Document not found" );
				return;
			}

			if( !(doc instanceof OSCRouter) ) {
				OSCRoot.failed( rom.msg, "Document doesn't speak OSC" );
				return;
			}
			
			((OSCRouter) doc).oscRoute( rom );
		} catch (IndexOutOfBoundsException e1) {
			OSCRoot.failedUnknownPath(rom);
		}
	}

	public void oscAddRouter(OSCRouter subRouter) {
		osc.oscAddRouter(subRouter);
	}

	public void oscRemoveRouter(OSCRouter subRouter) {
		osc.oscRemoveRouter(subRouter);
	}

	public Object oscQuery_count() {
		return getDocumentCount();
	}

	public void oscCmd_open(RoutedOSCMessage rom) {
		try {
			final String path = rom.msg.getArg(1).toString();
			root.getMenuFactory().openDocument(new File(path));
		} catch (IndexOutOfBoundsException e1) {
			OSCRoot.failedArgCount(rom);
		}
	}
}