configuratortag.java

来自「jGossip是一个简单而功能强大的Java论坛软件（消息板）」· Java 代码 · 共 123 行

/*
 * $$Id: ConfiguratorTag.java,v 1.6 2004/05/30 20:03:57 bel70 Exp $$
 *
 * ***** BEGIN LICENSE BLOCK *****
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and
 * limitations under the License.
 *
 * The Original Code is JGossip forum code.
 *
 * The Initial Developer of the Original Code is the JResearch, Org.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *              Dmitry Belov <[e-mail]>
 *
 * ***** END LICENSE BLOCK ***** */
package org.jresearch.gossip.tags;

import org.jresearch.gossip.configuration.Configurator;
import org.jresearch.gossip.exception.ConfiguratorException;
import org.jresearch.gossip.util.HtmlCodec;

import java.io.IOException;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;


/**
 * DOCUMENT ME!
 *
 * @author dbelov
 */
public class ConfiguratorTag extends TagSupport {
    private static Configurator config;
    private String key;
    private boolean quote;

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     *
     * @throws JspException DOCUMENT ME!
     */
    public int doStartTag() throws JspException {
        String param = null;

        try {
            param = getConfigurator().get(key);
        } catch (ConfiguratorException e1) {
            throw new JspException(e1);
        }

        if (this.quote) {
            HtmlCodec.encode(param);
        }

        JspWriter out = pageContext.getOut();

        try {
            out.print(param);
        } catch (IOException e) {
            throw new JspException(e);
        }

        return (SKIP_BODY);
    }

    private static Configurator getConfigurator() {
        if (config == null) {
            config = Configurator.getInstance();
        }

        return config;
    }

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public String getKey() {
        return key;
    }

    /**
     * DOCUMENT ME!
     *
     * @param string
     */
    public void setKey(String string) {
        key = string;
    }

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public boolean isQuote() {
        return quote;
    }

    /**
     * DOCUMENT ME!
     *
     * @param b
     */
    public void setQuote(boolean b) {
        quote = b;
    }
}