AssistantMessages.java :  » IDE-Netbeans » form » org » netbeans » modules » form » assistant » Java Open Source

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
 * License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html
 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
 * specific language governing permissions and limitations under the
 * License.  When distributing the software, include this License Header
 * Notice in each file and include the License file at
 * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the
 * License Header, with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Contributor(s):
 *
 * The Original Software is NetBeans. The Initial Developer of the Original
 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
 * Microsystems, Inc. All Rights Reserved.
 *
 * If you wish your version of this file to be governed by only the CDDL
 * or only the GPL Version 2, indicate your decision by adding
 * "[Contributor] elects to include this software in this distribution
 * under the [CDDL or GPL Version 2] license." If you do not indicate a
 * single choice of license, a recipient has the option to distribute
 * your version of this file under either the CDDL, the GPL Version 2 or
 * to extend the choice of license to its licensees as provided above.
 * However, if you add GPL Version 2 code and therefore, elected the GPL
 * Version 2 license, then the option applies only if the new code is
 * made subject to such option by the copyright holder.
 */
package org.netbeans.modules.form.assistant;

import java.util.*;

import org.openide.util.NbBundle;

/**
 * Repository of assistant messages.
 *
 * @author Jan Stola
 */
public class AssistantMessages {
    private static AssistantMessages defaultInstance = new AssistantMessages();
    private boolean initialized = false;
    private Map<String, String[]> contextToMessages;

    private AssistantMessages() {
    }

    public static AssistantMessages getDefault() {
        return defaultInstance;
    }

    public String[] getMessages(String context) {
        if (!initialized) {
            initialize();
        }
        String[] messages = contextToMessages.get(context);
        return messages;
    }

    public void setMessages(String context, String... messages) {
        if (!initialized) {
            initialize();
        }
        contextToMessages.put(context, messages);
    }

    private void initialize() {
        Map<String,Set<String>> contextToSet = new HashMap<String,Set<String>>();
        ResourceBundle bundle = NbBundle.getBundle(AssistantMessages.class);
        Enumeration enumeration = bundle.getKeys();
        while (enumeration.hasMoreElements()) {
            String bundleKey = (String)enumeration.nextElement();
            String context = getContext(bundleKey);
            Set<String> messages = contextToSet.get(context);
            if (messages == null) {
                messages = new HashSet<String>();
                contextToSet.put(context, messages);
            }
            messages.add(bundle.getString(bundleKey));
        }

        // Transform sets into arrays
        contextToMessages = new HashMap<String, String[]>();
        Iterator<Map.Entry<String,Set<String>>> iter = contextToSet.entrySet().iterator();
        while (iter.hasNext()) {
            Map.Entry<String,Set<String>> entry = iter.next();
            String key = entry.getKey();
            Set<String> value = entry.getValue();
            String[] messages = value.toArray(new String[value.size()]);
            contextToMessages.put(key, messages);
        }
        
        initialized = true;
    }

    private String getContext(String bundleKey) {
        int index = bundleKey.indexOf('_');
        if (index == -1) {
            return bundleKey;
        } else {
            return bundleKey.substring(0, index);
        }
    }

}