cn.vlabs.duckling.vwb.service.dml.html2dml.ParseHtmlEmbed.java Source code

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Here is the source code for cn.vlabs.duckling.vwb.service.dml.html2dml.ParseHtmlEmbed.java

Source

/*
 * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences.
 * 
 * This file is part of Duckling project.
 *
 * 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 cn.vlabs.duckling.vwb.service.dml.html2dml;

import java.io.IOException;
import java.io.PrintWriter;

import org.apache.commons.lang.StringUtils;
import org.jdom.Element;
import org.jdom.JDOMException;

import cn.vlabs.duckling.common.util.Base64;

/**
 * Introduction Here.
 * 
 * @date 2010-3-8
 * @author 
 */

public class ParseHtmlEmbed extends AbstractParseHtmlElement {
    private static final String[] ATTRIBUTE_NAMES = { "class", "style", "alt", "height", "width", "type",
            "pluginspage", "wmode" };
    private static final String ATTRIBUTE_SRC = "src";

    @Override
    public void printAttribute(Element e, Html2DmlEngine html2dmlengine) {
        PrintWriter writer = html2dmlengine.getM_out();
        for (String attr : ATTRIBUTE_NAMES) {
            String attrValue = e.getAttributeValue(attr);
            if (StringUtils.isNotBlank(attrValue)) {
                writer.printf(" %s=\"%s\"", attr, e.getAttributeValue(attr));
            }
        }

        String srcValue = e.getAttributeValue(ATTRIBUTE_SRC);
        if (srcValue != null) {
            String dmlSrc = html2dmlengine.findAttachment(srcValue, html2dmlengine);
            if (dmlSrc != null) {
                writer.printf(" %s=\"%s\"", "dmlsrc", dmlSrc);
            } else {
                writer.printf(" %s=\"%s\"", "src", srcValue);
            }
        }
    }

    @Override
    public void printElement(Element e, Html2DmlEngine html2dmlengine) {
        html2dmlengine.getM_out().print("<embed ");
        printAttribute(e, html2dmlengine);
        if (html2dmlengine.getPreType() > 0) {
            html2dmlengine.getM_out().print(">");
        } else {
            html2dmlengine.getM_out().println(">");
        }
        try {
            h2d.getChildren(e, html2dmlengine);
        } catch (IOException e1) {
            e1.printStackTrace();
        } catch (JDOMException e1) {
            e1.printStackTrace();
        }
        if (html2dmlengine.getPreType() > 0) {
            html2dmlengine.getM_out().print("</embed >");
        } else {
            html2dmlengine.getM_out().println("</embed >");
        }
    }

    //  BASE64 ? s ?
    public static String getFromBASE64(String s) {
        if (s == null)
            return null;
        try {
            byte[] b = Base64.decode(s);
            return new String(b);
        } catch (Exception e) {
            return null;
        }
    }

}