package er.pdfexamples.components;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import org.apache.log4j.Logger;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WOResponse;
import com.webobjects.foundation.NSData;
import com.webobjects.foundation.NSMutableArray;
import er.extensions.components.ERXComponent;
import er.pdf.ERPDFMerge;
public class CombineTheStreams extends ERXComponent {
/**
* Logger for this class
*/
private static final Logger logger = Logger.getLogger(CombineTheStreams.class);
public String filename = "combined_result.pdf";
public NSMutableArray<InputStream> pdfsToCombine;
public NSData data;
public CombineTheStreams(WOContext context) {
super(context);
pdfsToCombine = new NSMutableArray<InputStream>();
}
public void combinedResponseAsPdf(WOResponse response, WOContext context) {
ByteArrayOutputStream output = new ByteArrayOutputStream();
ERPDFMerge.concatPDFs(pdfsToCombine, output, false);
data = new NSData(output.toByteArray());
response.setHeader("inline; filename=\"" + filename + "\"", "content-disposition");
response.setHeader("application/pdf", "Content-Type");
response.setHeader(String.valueOf(data.length()), "Content-Length");
response.setContent(data);
}
/**
* combine the NSData elements to one pdf file
*/
@Override
public void appendToResponse(WOResponse response, WOContext context) {
super.appendToResponse(response, context);
combinedResponseAsPdf(response, context);
}
}