com.twinsoft.convertigo.beans.steps.WriteBase64Step.java Source code

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Here is the source code for com.twinsoft.convertigo.beans.steps.WriteBase64Step.java

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/*
 * Copyright (c) 2001-2011 Convertigo SA.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 *
 * $URL$
 * $Author$
 * $Revision$
 * $Date$
 */

package com.twinsoft.convertigo.beans.steps;

import java.io.File;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.FileUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import com.twinsoft.convertigo.engine.Engine;
import com.twinsoft.convertigo.engine.EngineException;
import com.twinsoft.convertigo.engine.util.XMLUtils;

public class WriteBase64Step extends WriteFileStep {

    private static final long serialVersionUID = 2781335492473421310L;

    public WriteBase64Step() {
        super();
    }

    @Override
    public WriteBase64Step clone() throws CloneNotSupportedException {
        WriteBase64Step clonedObject = (WriteBase64Step) super.clone();
        return clonedObject;
    }

    @Override
    public WriteBase64Step copy() throws CloneNotSupportedException {
        WriteBase64Step copiedObject = (WriteBase64Step) super.copy();
        return copiedObject;
    }

    @Override
    public String toString() {
        String label = "";
        try {
            label += super.getLabel();
        } catch (EngineException e) {
        }
        return "WriteBase64" + label;
    }

    protected void writeFile(String filePath, NodeList nodeList) throws EngineException {
        if (nodeList == null) {
            throw new EngineException("Unable to write to xml file: element is Null");
        }

        String fullPathName = getAbsoluteFilePath(filePath);
        synchronized (Engine.theApp.filePropertyManager.getMutex(fullPathName)) {
            try {
                for (Node node : XMLUtils.toNodeArray(nodeList)) {
                    try {
                        String content = node instanceof Element ? ((Element) node).getTextContent()
                                : node.getNodeValue();
                        if (content != null && content.length() > 0) {
                            byte[] bytes = Base64.decodeBase64(content);
                            if (bytes != null && bytes.length > 0) {
                                FileUtils.writeByteArrayToFile(new File(fullPathName), bytes);
                                return;
                            }
                        }
                    } catch (Exception e) {
                        Engine.logBeans.info("(WriteBase64Step) Failed to decode and write base64 content : "
                                + e.getClass().getCanonicalName());
                    }
                }
            } finally {
                Engine.theApp.filePropertyManager.releaseMutex(fullPathName);
            }
        }
    }
}