/*

 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.tools.doclets.formats.html.markup;

import com.sun.tools.doclets.internal.toolkit.Content;

import com.sun.tools.doclets.internal.toolkit.util.*;

/**

 * Class for generating string content for HTML tags of javadoc output.

 *

 * @author Bhavesh Patel

 */

public class StringContent extends Content{

    private StringBuilder stringContent;

    /**

     * Constructor to construct StringContent object.

     */

    public StringContent() {

        stringContent = new StringBuilder();

    }

    /**

     * Constructor to construct StringContent object with some initial content.

     *

     * @param initialContent initial content for the object

     */

    public StringContent(String initialContent) {

        stringContent = new StringBuilder(

                Util.escapeHtmlChars(nullCheck(initialContent)));

    }

    /**

     * This method is not supported by the class.

     *

     * @param content content that needs to be added

     * @throws DocletAbortException this method will always throw a

     *                              DocletAbortException because it

     *                              is not supported.

     */

    public void addContent(Content content) {

        throw new DocletAbortException();

    }

    /**

     * Adds content for the StringContent object.  The method escapes

     * HTML characters for the string content that is added.

     *

     * @param strContent string content to be added

     */

    public void addContent(String strContent) {

        stringContent.append(Util.escapeHtmlChars(nullCheck(strContent)));

    }

    /**

     * {@inheritDoc}

     */

    public boolean isEmpty() {

        return (stringContent.length() == 0);

    }

    /**

     * {@inheritDoc}

     */

    public String toString() {

        return stringContent.toString();

    }

    /**

     * {@inheritDoc}

     */

    public void write(StringBuilder contentBuilder) {

        contentBuilder.append(stringContent);

    }

}