com.salesmanager.core.util.LabelUtil.java Source code

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Here is the source code for com.salesmanager.core.util.LabelUtil.java

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/*
 * Licensed to csti consulting 
 * You may obtain a copy of the License at
 *
 * http://www.csticonsulting.com
 * Copyright (c) 2006-Aug 24, 2010 Consultation CS-TI inc. 
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.salesmanager.core.util;

import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.configuration.Configuration;
import org.apache.commons.lang.StringUtils;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.LocaleProvider;
import com.opensymphony.xwork2.TextProvider;
import com.opensymphony.xwork2.TextProviderFactory;

public class LabelUtil {

    private Locale locale;

    private LabelUtil() {

    }

    public static LabelUtil getInstance() {

        return new LabelUtil();
    }

    public void setLocale(Locale locale) {
        this.locale = locale;
    }

    public Locale getLocale() {
        return locale;
    }

    public String getText(String aTextName) {

        if (locale == null) {
            setLocale(LocaleUtil.getDefaultLocale());
        }

        return getTextProvider().getText(getLocale(), aTextName);
    }

    public String getText(HttpServletRequest request, String aTextName) {

        setLocale(LocaleUtil.getLocale(request));
        return getTextProvider().getText(getLocale(), aTextName);
    }

    public String getText(Locale locale, String aTextName) {

        setLocale(locale);
        return getTextProvider().getText(getLocale(), aTextName);
    }

    public String getText(String lang, String aTextName, String parameter) {
        getLocale(lang);
        return getTextProvider().getText(getLocale(), aTextName, parameter);
    }

    public String getText(Locale locale, String aTextName, List params) {

        return getTextProvider().getText(getLocale(), aTextName, params);
    }

    public String getText(String lang, String aTextName) {

        getLocale(lang);
        return getTextProvider().getText(getLocale(), aTextName);
    }

    private void getLocale(String lang) {

        if (StringUtils.isBlank(lang)) {
            lang = LanguageUtil.getDefaultLanguage();
        }

        if (lang.equals("en")) {
            setLocale(Locale.ENGLISH);
        } else if (lang.equals("fr")) {
            setLocale(Locale.FRENCH);
        } else {
            setLocale(new Locale(lang));
        }
    }

    private SmTextProvider getTextProvider() {
        ActionContext ctx = ActionContext.getContext();
        if (ctx == null) {// use the other method
            return new CustomLabelUtil();
        } else {// use struts method
            return new StrutsLabelUtil();
        }
    }

}

interface SmTextProvider {
    String getText(Locale locale, String key);

    String getText(Locale locale, String key, List parameters);

    String getText(Locale locale, String key, String parameter);
}

class StrutsLabelUtil implements LocaleProvider, SmTextProvider {

    private Locale locale;

    private void setLocale(Locale locale) {
        this.locale = locale;
    }

    public Locale getLocale() {
        return locale;
    }

    public String getText(Locale locale, String key) {
        this.setLocale(locale);
        TextProvider textProvider = (new TextProviderFactory()).createInstance(StrutsLabelUtil.class, this);
        return textProvider.getText(key);
    }

    public String getText(Locale locale, String key, List parameters) {
        this.setLocale(locale);
        TextProvider textProvider = (new TextProviderFactory()).createInstance(StrutsLabelUtil.class, this);
        return textProvider.getText(key, parameters);
    }

    public String getText(Locale locale, String key, String parameter) {
        this.setLocale(locale);
        TextProvider textProvider = (new TextProviderFactory()).createInstance(StrutsLabelUtil.class, this);
        return textProvider.getText(key, new String[] { parameter });
    }
}

class CustomLabelUtil implements SmTextProvider {

    private static List bundleList = new ArrayList();

    static {// load config files

        Configuration props = PropertiesUtil.getConfiguration();
        List lst = (List) props.getProperty("struts.custom.i18n.resources");
        if (lst != null) {
            bundleList = lst;
        }

    }

    public String getText(Locale locale, String key) {

        Iterator bundleListIterator = bundleList.iterator();
        ResourceBundle myResources = null;
        String label = "";
        while (bundleListIterator.hasNext()) {
            String bundle = (String) bundleListIterator.next();
            try {
                myResources = ResourceBundle.getBundle(bundle, locale);
                if (myResources != null) {
                    String l = myResources.getString(key);
                    if (l != null) {
                        label = l;
                        break;
                    }
                }

            } catch (Exception e) {
                // TODO: handle exception
            }

        }
        return label;
    }

    public String getText(Locale locale, String key, List parameters) {

        Iterator bundleListIterator = bundleList.iterator();
        ResourceBundle myResources = null;
        String label = "";
        while (bundleListIterator.hasNext()) {
            String bundle = (String) bundleListIterator.next();

            try {

                myResources = ResourceBundle.getBundle(bundle, locale);
                if (myResources != null) {
                    String l = myResources.getString(key);
                    if (l != null) {
                        MessageFormat mFormat = new MessageFormat(l);
                        String[] params = new String[parameters.size()];
                        params = (String[]) parameters.toArray(params);
                        l = mFormat.format(params);
                        label = l;
                        break;
                    }
                }

            } catch (Exception e) {
                // Handle exception
            }

        }
        return label;
    }

    public String getText(Locale locale, String key, String parameter) {
        Iterator bundleListIterator = bundleList.iterator();
        ResourceBundle myResources = null;
        String label = "";
        while (bundleListIterator.hasNext()) {
            String bundle = (String) bundleListIterator.next();

            try {

                myResources = ResourceBundle.getBundle(bundle, locale);
                if (myResources != null) {
                    String l = myResources.getString(key);
                    if (l != null) {
                        MessageFormat mFormat = new MessageFormat(l);
                        l = mFormat.format(parameter);
                        label = l;
                        break;
                    }
                }

            } catch (Exception e) {
                // TODO: handle exception
            }

        }
        return label;
    }
}