Andy, Just for my interest, what's Rosiretto? I only get one Google hit which is also you talking about it :o)
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: 28 October 2005 15:05 To: [email protected] Subject: Re: POI & JAF? You may also want to take a look at Mime4J and Rosiretto since JAF (and hence javamail) do bad things to threads with regards to MIME. -Andy [EMAIL PROTECTED] wrote: > Rob, > > Here is the code I use, which I think covers what you are talking > about. > > Iain > > > --------------------------------------- > import javax.activation.DataHandler; > import javax.activation.DataSource; > > DataSource dsData = new MemoryDataSource( > poiByteArray, "foo.xls", "application/msexcel"); > DataHandler handler = new DataHandler(dsData); > > > > --------------------------------------- > File: MemoryDataSource.java > > import java.io.ByteArrayInputStream; > import java.io.IOException; > import java.io.InputStream; > import java.io.OutputStream; > > import org.apache.commons.lang.Validate; > > /** > * A read-only DataSource that wraps a binary attachment, which is > already in > * memory and the MIME type is already known. > * <p> > * NB This refers to the Java Activation Framework's idea of > DataSources. > * Nothing to do with SQL. Java Mail uses this for framework to handle > * mail attachments. > * <p> > * The JAF 'activation.jar' must be present if this class is used. > * > * @see <a > href="http://java.sun.com/products/javabeans/glasgow/jaf.html";> > * Java Activation Framework</a> > */ > public class MemoryDataSource implements javax.activation.DataSource > { > private byte[] data; > private String name; > private String mimeType; > > /** > * Creates a MemoryDataSource. > * @param data Binary data. <b>NB - no defensive copy is > made.</b> > * @param name Some sort of filename for the data. > * @param mimeType MIME type of the data. > */ > public MemoryDataSource(byte[] data, String name, String mimeType) > { > Validate.notNull(data, "data is null"); > Validate.notEmpty(name, "name is null or empty"); > Validate.notEmpty(mimeType, "mimeType is null or empty"); > this.data = data; > this.name = name; > this.mimeType = mimeType; > } > > > /** > * @see javax.activation.DataSource#getContentType() > */ > public String getContentType() > { > return mimeType; > } > > > /** > * @see javax.activation.DataSource#getInputStream() > */ > public InputStream getInputStream() throws IOException > { > return new ByteArrayInputStream(data); > } > > > /** > * @see javax.activation.DataSource#getName() > */ > public String getName() > { > return name; > } > > > /** > * Not implemented. > * @throws IOException Always. > * @see javax.activation.DataSource#getOutputStream() > */ > public OutputStream getOutputStream() throws IOException > { > throw new IOException("Output is not implemented"); > } > > } > > > > > -----Original Message----- > From: Rob Cameron [mailto:[EMAIL PROTECTED] > Sent: 28 October 2005 13:12 > To: [email protected] > Subject: POI & JAF? > > > Hi all, > > I am wondering if POI can be applied to a problem I am having. > > I have some content in memory that I want to email to the user as an > .xls attachment. Using javax.activation, I create a DataHandler, > passing my content and the appropriate mime type as parameters to the > constructor. For this to work properly, there needs to be a class > associated with x-java-content-handler for that mime type (inside > activation.jar in mailcap.default or elsewhere). This all works just > fine for a .txt attachment. > > I am wondering if there is a class in POI (HSSF) that could be used as > the x-java-content-handler for xls (application/msexcel). If not, I am > wondering if anyone has any other ideas for how to approach this > issue. > > Thanks, > Rob Cameron > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > Mailing List: http://jakarta.apache.org/site/mail2.html#poi > The Apache Jakarta Poi Project: http://jakarta.apache.org/poi/ > > > > ---------------------------------------------------------------------- > -- > For more information about Barclays Capital, please > visit our web site at http://www.barcap.com. > > > Internet communications are not secure and therefore the Barclays > Group does not accept legal responsibility for the contents of this > message. Although the Barclays Group operates anti-virus programmes, > it does not accept responsibility for any damage whatsoever that is > caused by viruses being passed. Any views or opinions presented are > solely those of the author and do not necessarily represent those of the > Barclays Group. 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