de.iritgo.nexim.tools.XMLToString.java Source code

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Here is the source code for de.iritgo.nexim.tools.XMLToString.java

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/**
 * This file is part of the neXim XMPP server
 *
 * Copyright (C) 2005-2011 Iritgo Technologies
 * Copyright (C) 2003-2005 BueroByte GbR
 * Copyright (c) 2003, OpenIM Project http://open-im.net
 *
 * Iritgo licenses this file to You under the BSD License
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * BSD License http://www.opensource.org/licenses/bsd-license.php
 *
 * 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.iritgo.nexim.tools;

import org.apache.commons.lang.StringUtils;

public class XMLToString {
    private String m_elementName;

    private StringBuffer m_buffer;

    private StringBuffer m_innerBuffer;

    public XMLToString(String elementName) {
        m_buffer = new StringBuffer();
        m_buffer.append('<').append(elementName);
        m_elementName = elementName;
    }

    public void addAttribut(String name, String value) {
        if (name != null && name.length() > 0 && value != null) {
            m_buffer.append(' ').append(name).append("='").append(value).append("'");
        }
    }

    public void addFilledAttribut(String name, String value) {
        if (name != null && name.length() > 0 && value != null && value.length() > 0) {
            m_buffer.append(' ').append(name).append("='").append(value).append("'");
        }
    }

    public void addTextNode(String text) {
        if (text != null && text.length() > 0) {
            if (m_innerBuffer == null) {
                m_innerBuffer = new StringBuffer();
            }

            m_innerBuffer.append(convert(text));
        }
    }

    public void addStringElement(String stringElement) {
        if (stringElement != null) {
            if (m_innerBuffer == null) {
                m_innerBuffer = new StringBuffer();
            }

            m_innerBuffer.append(stringElement);
        }
    }

    public void addElement(XMLToString xmlToString) {
        if (xmlToString != null) {
            if (m_innerBuffer == null) {
                m_innerBuffer = new StringBuffer();
            }

            m_innerBuffer.append(xmlToString.toStringBuffer());
        }
    }

    @Override
    public String toString() {
        return toStringBuffer().toString();
    }

    public StringBuffer toStringBuffer() {
        StringBuffer buffer = new StringBuffer();

        if (m_innerBuffer != null) {
            buffer.append(m_buffer).append('>').append(m_innerBuffer).append("</").append(m_elementName)
                    .append('>');
        } else {
            buffer.append(m_buffer).append("/>");
        }

        return buffer;
    }

    // -----------------------------------------------------------------------
    // should be optimized...
    private static final String convert(String s) {
        s = StringUtils.replace(s, "&", "&amp;");
        s = StringUtils.replace(s, "<", "&lt;");
        s = StringUtils.replace(s, ">", "&gt;");

        return s;
    }
}