Struts example source code file (DefaultTextProvider.java)

This example Struts source code file (DefaultTextProvider.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

arraylist, defaulttextprovider, empty_args, empty_args, io, list, list, messageformat, object, object, resourcebundle, serializable, string, string, text, util, valuestack

The Struts DefaultTextProvider.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * 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 com.opensymphony.xwork2;

import com.opensymphony.xwork2.util.LocalizedTextUtil;
import com.opensymphony.xwork2.util.ValueStack;

import java.io.Serializable;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.ResourceBundle;

/**
 * DefaultTextProvider gets texts from only the default resource bundles associated with the
 * LocalizedTextUtil.
 *
 * @author Jason Carreira <jcarreira@gmail.com>
 * @author Rainer Hermanns
 * @see LocalizedTextUtil#addDefaultResourceBundle(String)
 */
public class DefaultTextProvider implements TextProvider, Serializable, Unchainable {

    private static final Object[] EMPTY_ARGS = new Object[0];

    public DefaultTextProvider() {
    }

    public boolean hasKey(String key) {
        return getText(key) != null;
    }

    public String getText(String key) {
        return LocalizedTextUtil.findDefaultText(key, ActionContext.getContext().getLocale());
    }

    public String getText(String key, String defaultValue) {
        String text = getText(key);
        if (text == null) {
            return defaultValue;
        }
        return text;
    }

    public String getText(String key, List<?> args) {
        Object[] params;
        if (args != null) {
            params = args.toArray();
        } else {
            params = EMPTY_ARGS;
        }

        return LocalizedTextUtil.findDefaultText(key, ActionContext.getContext().getLocale(), params);
    }

    public String getText(String key, String[] args) {
        Object[] params;
        if (args != null) {
            params = args;
        } else {
            params = EMPTY_ARGS;
        }

        return LocalizedTextUtil.findDefaultText(key, ActionContext.getContext().getLocale(), params);
    }

    public String getText(String key, String defaultValue, List<?> args) {
        String text = getText(key, args);
        if(text == null && defaultValue == null) {
            defaultValue = key;
        }
        if (text == null && defaultValue != null) {

            MessageFormat format = new MessageFormat(defaultValue);
            format.setLocale(ActionContext.getContext().getLocale());
            format.applyPattern(defaultValue);

            Object[] params;
            if (args != null) {
                params = args.toArray();
            } else {
                params = EMPTY_ARGS;
            }

            return format.format(params);
        }
        return text;        
    }

    public String getText(String key, String defaultValue, String[] args) {
        String text = getText(key, args);
        if (text == null) {
            MessageFormat format = new MessageFormat(defaultValue);
            format.setLocale(ActionContext.getContext().getLocale());
            format.applyPattern(defaultValue);

            if (args == null) {
                return format.format(EMPTY_ARGS);
            }

            return format.format(args);
        }
        return text;
    }


    public String getText(String key, String defaultValue, String obj) {
        List<Object> args = new ArrayList