WOOgnlAssociation.java

/*
 * Copyright (C) NetStruxr, Inc. All rights reserved.
 *
 * This software is published under the terms of the NetStruxr
 * Public Software License version 0.5, a copy of which has been
 * included with this distribution in the LICENSE.NPL file.  */

/* WOOgnlAssociation.java created by max on Fri 28-Sep-2001 */
package ognl.webobjects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.webobjects.appserver.WOAssociation;
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver._private.WOKeyValueAssociation;
import com.webobjects.eocontrol.EOEventCenter;
import com.webobjects.foundation.NSForwardException;
import com.webobjects.foundation.NSProperties;
import com.webobjects.foundation.NSPropertyListSerialization;

public class WOOgnlAssociation extends WOKeyValueAssociation {
	private static final Logger log = LoggerFactory.getLogger(WOOgnlAssociation.class);

	public WOOgnlAssociation(String s) {
		super(s);
	}

	@Override
	public Object clone() {
		return new WOOgnlAssociation(keyPath());
	}

	@Override
	public Object valueInComponent(WOComponent component) {
		WOAssociation.Event event = _markStartOfEventIfNeeded("valueForKeyPath", keyPath(), component);
		Object value = null;
		try {
			value = WOOgnl.factory().getValue(keyPath(), component);
		}
		catch (Exception e) {
			if (shouldThrowException()) {
				throw new NSForwardException(e);
			}
			log.error("Exception invoking valueInComponent on WOOgnlAssociation with keyPath '{}'", keyPath(), e);
		}
		if (event != null) {
			EOEventCenter.markEndOfEvent(event);
		}
		if (_debugEnabled) {
			_logPullValue(value, component);
		}
		return value;
	}

	@Override
	public void setValue(Object object, WOComponent component) {
		WOAssociation.Event event = _markStartOfEventIfNeeded("takeValueForKeyPath", keyPath(), component);
		try {
			// not sure how to manage validation or whether the current
			// implementation is enough...
			WOOgnl.factory().setValue(keyPath(), component, object);
		}
		catch (Exception e) {
			if (shouldThrowException()) {
				throw new NSForwardException(e);
			}
			log.error("Exception invoking setValue on WOOgnlAssociation: '{}'.", keyPath(), e);
		}
		if (event != null) {
			EOEventCenter.markEndOfEvent(event);
		}
		if (_debugEnabled) {
			_logPushValue(object, component);
		}
	}

	private boolean shouldThrowException() {
		return NSPropertyListSerialization.booleanForString(NSProperties.getProperty("ognl.webobjects.WOAssociation.shouldThrowExceptions"));
	}
}