de.micromata.genome.gwiki.page.impl.i18n.GWikiI18NCombinedResourceBundle.java Source code

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Here is the source code for de.micromata.genome.gwiki.page.impl.i18n.GWikiI18NCombinedResourceBundle.java

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//
// Copyright (C) 2010-2016 Roger Rene Kommer & Micromata GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
// 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 de.micromata.genome.gwiki.page.impl.i18n;

import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.jstl.fmt.LocalizationContext;

import org.apache.commons.lang3.ObjectUtils;
import org.apache.commons.lang3.StringUtils;

import de.micromata.genome.gwiki.model.GWikiElement;
import de.micromata.genome.gwiki.model.GWikiWeb;
import de.micromata.genome.gwiki.model.logging.GWikiLog;
import de.micromata.genome.gwiki.page.GWikiContext;
import de.micromata.genome.gwiki.page.impl.GWikiI18nElement;
import de.micromata.genome.gwiki.web.GWikiServlet;

/**
 * @author Roger Rene Kommer (r.kommer@micromata.de)
 * 
 */
public class GWikiI18NCombinedResourceBundle extends ResourceBundle {
    private Locale locale;

    private LocalizationContext prevLocContext;

    private List<String> modules;

    public GWikiI18NCombinedResourceBundle(Locale locale, LocalizationContext prevLocContext,
            List<String> modules) {
        super();
        this.locale = locale;
        this.prevLocContext = prevLocContext;
        this.modules = modules;
    }

    @Override
    public Enumeration<String> getKeys() {
        for (String module : modules) {
            GWikiElement el = GWikiWeb.get().findElement(module);
            if (el == null) {
                GWikiLog.warn("I18N Module not found: " + module);
                continue;
            }
            if ((el instanceof GWikiI18nElement) == false) {
                GWikiLog.warn("Element is not a I18N Module: " + module);
                continue;
            }
            GWikiI18nElement i18nel = (GWikiI18nElement) el;
            return Collections.enumeration(i18nel.getKeys(locale.getLanguage()));
        }

        return null;
    }

    protected Object decorateWiki(GWikiI18nElement i18nel, String key, Object value) {
        if ((value instanceof String) == false && GWikiI18NServletFilter.HTTPCTX.get() == null) {
            return value;
        }
        if (GWikiWeb.get() == null) {
            return value;
        }
        HttpServletRequest req = GWikiI18NServletFilter.HTTPCTX.get().getFirst();
        if (ObjectUtils.toString(req.getAttribute("gwiki18ndeco")).equals("true") == false) {
            return value;
        }
        if (GWikiMessageTag.getDomId4I18N(req, key) != null) {
            return value;
        }
        GWikiWeb wikiWeb = GWikiWeb.get();
        GWikiContext wikiContext = new GWikiContext(wikiWeb, GWikiServlet.INSTANCE, req,
                GWikiI18NServletFilter.HTTPCTX.get().getSecond());
        if (GWikiWeb.get().getAuthorization().isAllowToEdit(wikiContext, i18nel.getElementInfo()) == false) {
            return value;
        }
        String contextPath = wikiWeb.getContextPath();
        if (StringUtils.isEmpty(contextPath) == true) {
            contextPath = wikiContext.getRealContextPath();
        }
        String gewikiBase = contextPath + wikiWeb.getServletPath();
        String sval = (String) value;
        String ret = "<span class=\"gwiki18nk\" oncontextmenu=\"return gwikiI18NCtxMenu(this, '"
                + i18nel.getElementInfo().getId() + "', '" + key + "', '" + req.getRequestURI() + "', '"
                + gewikiBase + "')\">" + sval + "</span>";
        return ret;
    }

    protected Object getFromWiki(String key) {
        GWikiWeb wikiWeb = GWikiWeb.get();

        if (wikiWeb == null) {
            return null;
        }
        for (String module : modules) {
            GWikiElement el = wikiWeb.findElement(module);
            if (el == null) {
                GWikiLog.warn("I18N Module not found: " + module);
                continue;
            }
            if ((el instanceof GWikiI18nElement) == false) {
                GWikiLog.warn("Element is not a I18N Module: " + module);
                continue;
            }
            GWikiI18nElement i18nel = (GWikiI18nElement) el;

            String v = i18nel.getMessage(locale.getLanguage(), key);
            if (v != null) {
                return decorateWiki(i18nel, key, v);
            }
        }
        return null;
    }

    @Override
    protected Object handleGetObject(String key) {
        Object ret = getFromWiki(key);
        if (ret != null) {
            return ret;
        }
        if (prevLocContext == null) {
            return null;
        }
        return prevLocContext.getResourceBundle().getObject(key);
    }
}