MessageLoader.java

/*******************************************************************************
 * Copyright (c) 2009, 2010 Progress Software Corporation.
 * 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
 ******************************************************************************/
package org.fusesource.tools.messaging.utils;

import java.util.List;

import org.eclipse.core.resources.IFile;
import org.fusesource.tools.core.message.Message;
import org.fusesource.tools.message.MessageConstants;
import org.fusesource.tools.message.editors.MessageEditorConstants;
import org.fusesource.tools.message.extensions.IMessageType;
import org.fusesource.tools.message.utils.MessageExtensionsMgr;
import org.fusesource.tools.message.utils.MessageManager;
import org.fusesource.tools.messaging.core.IProvider;
import org.fusesource.tools.messaging.core.ISender;

public class MessageLoader extends MessageManager {

    public static Message getLoadedMessage(IFile ifile, ISender sender) {
        if (ifile.getFileExtension().equalsIgnoreCase(MessageEditorConstants.MESSAGE_FILE_EXTENSION)) {
            return loadMessage(ifile);
        } else {
            IMessageType messageType = findHandler(sender, ifile);
            if (messageType == null) {
                return null;
            }
            return messageType.load(ifile);
        }
    }

    public static Message getLoadedMessage(String fileUrl, ISender sender) {
        if (fileUrl.endsWith(MessageEditorConstants.MESSAGE_FILE_EXTENSION)) {
            return loadMessage(fileUrl);
        } else {
            IMessageType messageType = findHandler(sender, fileUrl);
            if (messageType == null) {
                return null;
            }
            return messageType.load(fileUrl);
        }
    }

    public static IMessageType findHandler(ISender sender, Object object) {
        String providerId = null;
        if (sender != null) {
            IProvider provider = sender.getDestination().getConnection().getProvider();
            providerId = provider.getId();
        }
        IMessageType messageType = providerSpecificMessageType(object, providerId);
        return messageType;
    }

    private static IMessageType providerSpecificMessageType(Object object, String providerId) {
        IMessageType supportedMessageType = null;
        List<IMessageType> messageTypeExtensions = MessageExtensionsMgr.getInstance().getMessageTypeExtensions();
        String extension = getExtension(object);
        for (IMessageType messageType : messageTypeExtensions) {
            if (doMatch(messageType, extension)) {
                supportedMessageType = messageType;
                if (!messageType.getProviderId().equalsIgnoreCase(MessageConstants.DEFAULT_PROVIDER)) {
                    break;
                }
            }
        }
        return supportedMessageType;
    }
}