Hi , i have zipped a single pdf file and convert them to zip file e.g. test.pdf to test.zip a container of the original file.
What i want it's to extract the single pdf in the zip and send to share like a normal pdf on runtime while using share, so i can use the standard preview e standard thumbnail of the pdf file.
===============================================================
/src/main/resources/alfresco/extension/mimetype/custom-mimetype-map.xml
===============================================================
<alfresco-config area="mimetype-map">
<config evaluator="string-compare" condition="Mimetype Map">
<mimetypes>
<mimetype mimetype="application/octet-stream" display="ZIP">
<extension>zip</extension>
</mimetype>
</mimetypes>
</config>
</alfresco-config>
=================================================================
/src/main/resources/alfresco/module/webdesktop-amp/alfresco-global.properties
=================================================================
.......
#TRANSFORMER
content.transformer.ZIPToPDF.priority=100
content.transformer.ZIPToPDF.extensions.zip.pdf.supported=true
................
=================================================================
/src/main/resources/alfresco/module/webdesktop-amp/mimetype-map-custom.xml
=================================================================
<?xml version='1.0' encoding='UTF-8'?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!-- IS EMPTY -->
</beans>
=================================================================
/src/main/resources/alfresco/module/webdesktop-amp/module-context.xml
=================================================================
<?xml version='1.0' encoding='UTF-8'?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<import resource="classpath:alfresco/module/${project.artifactId}/context/*-context.xml"/>
</beans>
=================================================================
/src/main/resources/alfresco/module/webdesktop-amp/context/transformer-context.xml
=================================================================
<?xml version='1.0' encoding='UTF-8'?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="transformer.ZIPToPDF"
class="it.abd.alfresco.transformers.ZIPToPDFTransformer"
parent="baseContentTransformer" >
</bean>
</beans>
=================================================================
/src/main/java/it/abd/alfresco/transformers/ZIPToPDFTransformer.java
=================================================================
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;
import org.alfresco.repo.content.transform.AbstractContentTransformer2;
import org.alfresco.repo.content.transform.UnsupportedTransformationException;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.ContentWriter;
import org.alfresco.service.cmr.repository.TransformationOptions;
import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import it.abd.sign.lib.SignAlfrescoLib;
public class ZIPToPDFTransformer extends AbstractContentTransformer2
{
private static final Log logger = LogFactory.getLog(ZIPToPDFTransformer.class);
/**
* Select only the file to transform
*/
public boolean isTransformable(String sourceMimetype, String targetMimetype, TransformationOptions options)
{
String ext = getExtensionOrAny("application/zip");
if ("application/zip".equalsIgnoreCase(sourceMimetype) || "application/octet-stream".equalsIgnoreCase(sourceMimetype) || ext.equalsIgnoreCase("zip")){
logger.debug("ZIPToPDFTransformer IsTranformable '"+ sourceMimetype + "' to '" + targetMimetype+"'");
return true;
}else{
return false;
}
}
/**
* Transofmer a zip to the pdf single file in it
*/
@Override
protected void transformInternal(ContentReader contentReader, ContentWriter contentWriter, TransformationOptions options) throws Exception
{
logger.debug("USE ZIPToPDFTransformer");
BufferedReader reader = null;
Writer out = null;
InputStream inStream = null;
InputStream is = null;
try
{
// Check the transformability
String myMimeType = myStrictMimetypeCheck(contentReader, contentWriter, options);
if(myMimeType !=null && !mimeType.isEmpty())contentWriter.setMimetype(myMimeType);
//The zip file on share
inStream = contentReader.getContentInputStream();
out = new BufferedWriter(new OutputStreamWriter(contentWriter.getContentOutputStream()));
//Extract Document pdf under the zip file (ignore these line they are work just fine)
byte[] originalFile = SignAlfrescoLib.getOriginalDocumentBinaries(inStream);
logger.debug("OriginalFile: " + String.valueOf(originalFile!=null && originalFile.length >0));
is = new BufferedInputStream(SignAlfrescoLib.getOriginalDocumentStream(inStream));
//Try to guess the mimetype of the document (ignore these line they are work just fine)
String guessMimeType = URLConnection.guessContentTypeFromStream(is);
logger.debug("GuessMimetype: " + guessMimeType);
if(guessMimeType!=null){
contentWriter.setMimetype(guessMimeType);//this is "application/pdf"
}
//Copy the pdf file extract from zip file on the outputstream with a mimetype "application/pdf"
//IOUtils.write(originalFile, outStream);
IOUtils.write(originalFile, out,StandardCharsets.UTF_8.displayName());
//outStream.flush();
}catch(IOException e){
e.printStackTrace();
}
finally
{
if (reader != null)
{
try{reader.close(); }
catch (Throwable e){e.printStackTrace();}
}
if (out != null) {
try{out.close();}
catch (Throwable e){e.printStackTrace();}
}
if(inStream != null){
try{inStream.close();}
catch (Throwable e){e.printStackTrace();}
}
if(is != null){
try{is.close();}
catch (Throwable e){e.printStackTrace();}
}
}
}
/**
* Manage the inner warnings of alfresco 5.2
* @param reader the reader of the current document
* @param writer the writer of the current document
* @param options the transform options of the current document
* @return the mimetype suggested from share
* @throws UnsupportedTransformationException
*/
private String myStrictMimetypeCheck(ContentReader reader,ContentWriter writer, TransformationOptions options)throws UnsupportedTransformationException
{
String mimeTypeOfAlfresco = "";
String sourceMimetype = reader.getMimetype();
String targetMimetype = writer.getMimetype();
String differentType = getMimetypeService().getMimetypeIfNotMatches(reader.getReader());
if (!transformerConfig.strictMimetypeCheck(sourceMimetype, differentType))
{
String fileName = transformerDebug.getFileName(options, true, 0);
String readerSourceMimetype = reader.getMimetype();
String message = "Transformation of ("+fileName+
") has not taken place because the declared mimetype ("+
readerSourceMimetype+") does not match the detected mimetype ("+
differentType+").";
logger.warn(message);
logger.debug("Cambiamo il mimetype con quello voluto da alfresco per evitare stackstrace del warning");
mimeTypeOfAlfresco = differentType;
}else{
logger.debug("Mimetype ok : mimeTypeOfAlfresco = "+mimeTypeOfAlfresco+ " , sourceMimetype = "+sourceMimetype);
mimeTypeOfAlfresco = sourceMimetype;
}
return mimeTypeOfAlfresco;
}
}
========================================================================================
The Alfresco version i use , is the 5.2 community.
Here the screenshot for make visualize the difference between a pdf file and a zip file on share:
I just want to retrieve the preview of the single document pdf in the zip file instead the fake preview of the zip file.
Hope i have made clear what i'm trying to do.
1 ACCEPTED ANSWER
