/*
* Copyright (c) 2004-2011 Marco Maccaferri and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.core.internal.markets;
import java.io.File;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Observable;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipsetrader.core.instruments.ISecurity;
import org.eclipsetrader.core.internal.CoreActivator;
import org.eclipsetrader.core.markets.IMarket;
import org.eclipsetrader.core.markets.IMarketService;
import org.eclipsetrader.core.markets.IMarketStatusListener;
import org.eclipsetrader.core.markets.MarketStatusEvent;
public class MarketService extends Observable implements IMarketService, Runnable {
public static final String REPOSITORY_FILE = "markets.xml"; //$NON-NLS-1$
private static IMarketService instance;
private List<Market> marketsList = new ArrayList<Market>();
private ListenerList listeners = new ListenerList(ListenerList.IDENTITY);
private Thread thread;
private boolean stopping = false;
public MarketService() {
instance = this;
}
public static IMarketService getInstance() {
return instance;
}
public void startUp(IProgressMonitor monitor) throws Exception {
JAXBContext jaxbContext = JAXBContext.newInstance(MarketList.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
unmarshaller.setEventHandler(new ValidationEventHandler() {
@Override
public boolean handleEvent(ValidationEvent event) {
Status status = new Status(IStatus.WARNING, CoreActivator.PLUGIN_ID, 0, "Error validating XML: " + event.getMessage(), null); //$NON-NLS-1$
CoreActivator.getDefault().getLog().log(status);
return true;
}
});
MarketList list = null;
File file = CoreActivator.getDefault().getStateLocation().append(REPOSITORY_FILE).toFile();
if (file.exists()) {
list = (MarketList) unmarshaller.unmarshal(file);
}
else {
list = (MarketList) unmarshaller.unmarshal(FileLocator.openStream(CoreActivator.getDefault().getBundle(), new Path("data").append(REPOSITORY_FILE), false));
}
if (list != null) {
this.marketsList = list.getList();
for (Market market : this.marketsList) {
if (market.getTimeZone() != null) {
market.setTimeZone(market.getTimeZone());
}
}
}
if (thread == null) {
stopping = false;
thread = new Thread(this);
thread.start();
}
}
public void shutDown(IProgressMonitor monitor) throws Exception {
stopping = true;
if (thread != null) {
try {
synchronized (thread) {
thread.notify();
}
thread.join(30 * 1000);
} catch (InterruptedException e) {
Status status = new Status(IStatus.ERROR, CoreActivator.PLUGIN_ID, 0, "Error stopping thread", e);
CoreActivator.log(status);
}
thread = null;
}
File file = CoreActivator.getDefault().getStateLocation().append(REPOSITORY_FILE).toFile();
if (file.exists()) {
file.delete();
}
JAXBContext jaxbContext = JAXBContext.newInstance(MarketList.class);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setEventHandler(new ValidationEventHandler() {
@Override
public boolean handleEvent(ValidationEvent event) {
Status status = new Status(IStatus.WARNING, CoreActivator.PLUGIN_ID, 0, "Error validating XML: " + event.getMessage(), null); //$NON-NLS-1$
CoreActivator.getDefault().getLog().log(status);
return true;
}
});
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.setProperty(Marshaller.JAXB_ENCODING, System.getProperty("file.encoding")); //$NON-NLS-1$
marshaller.marshal(new MarketList(marketsList), new FileWriter(file));
}
public void addMarket(Market market) {
marketsList.add(market);
setChanged();
notifyObservers();
}
public void deleteMarket(Market market) {
marketsList.remove(market);
setChanged();
notifyObservers();
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#getMarkets()
*/
@Override
public IMarket[] getMarkets() {
return marketsList.toArray(new IMarket[marketsList.size()]);
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#getMarket(java.lang.String)
*/
@Override
public IMarket getMarket(String name) {
for (Market market : marketsList) {
if (market.getName().equals(name)) {
return market;
}
}
return null;
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#getOpenMarkets()
*/
@Override
public IMarket[] getOpenMarkets() {
List<IMarket> l = new ArrayList<IMarket>();
for (Market market : marketsList) {
if (market.isOpen()) {
l.add(market);
}
}
return l.toArray(new IMarket[l.size()]);
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#getOpenMarkets(java.util.Date)
*/
@Override
public IMarket[] getOpenMarkets(Date time) {
List<IMarket> l = new ArrayList<IMarket>();
for (Market market : marketsList) {
if (market.isOpen(time)) {
l.add(market);
}
}
return l.toArray(new IMarket[l.size()]);
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#addMarketStatusListener(org.eclipsetrader.core.markets.IMarketStatusListener)
*/
@Override
public void addMarketStatusListener(IMarketStatusListener listener) {
listeners.add(listener);
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#removeMarketStatusListener(org.eclipsetrader.core.markets.IMarketStatusListener)
*/
@Override
public void removeMarketStatusListener(IMarketStatusListener listener) {
listeners.remove(listener);
}
public boolean isRunning() {
return thread != null;
}
protected boolean isStopping() {
return stopping;
}
/* (non-Javadoc)
* @see java.lang.Runnable#run()
*/
@Override
public void run() {
Map<IMarket, Boolean> statusMap = new HashMap<IMarket, Boolean>();
Map<IMarket, String> messageMap = new HashMap<IMarket, String>();
for (IMarket market : marketsList) {
statusMap.put(market, market.isOpen());
}
synchronized (thread) {
while (!isStopping()) {
for (IMarket market : marketsList) {
boolean oldStatus = statusMap.get(market);
boolean newStatus = market.isOpen();
String oldMessage = messageMap.get(market);
String newMessage = market.getToday().getMessage();
if (oldStatus != newStatus || newMessage != null && !newMessage.equals(oldMessage) || oldMessage != null && !oldMessage.equals(newMessage)) {
statusMap.put(market, newStatus);
messageMap.put(market, newMessage);
fireMarketStatusEvent(market);
}
}
try {
long delay = 60000 - System.currentTimeMillis() % 60000;
thread.wait(delay);
} catch (InterruptedException e) {
// Ignore exception, not important at this time
}
}
}
}
protected void fireMarketStatusEvent(IMarket market) {
MarketStatusEvent event = new MarketStatusEvent(market);
Object[] l = listeners.getListeners();
for (int i = 0; i < l.length; i++) {
try {
((IMarketStatusListener) l[i]).marketStatusChanged(event);
} catch (Exception e) {
Status status = new Status(IStatus.ERROR, CoreActivator.PLUGIN_ID, 0, "Error notifying market status update", e);
CoreActivator.log(status);
} catch (LinkageError e) {
Status status = new Status(IStatus.ERROR, CoreActivator.PLUGIN_ID, 0, "Error notifying market status update", e);
CoreActivator.log(status);
}
}
}
/* (non-Javadoc)
* @see org.eclipsetrader.core.markets.IMarketService#getMarketForSecurity(org.eclipsetrader.core.instruments.ISecurity)
*/
@Override
public IMarket getMarketForSecurity(ISecurity security) {
for (IMarket market : getMarkets()) {
if (market.hasMember(security)) {
return market;
}
}
return null;
}
}