Problems accesing files content in a server-side plugin

You should check if it's a file or folder as sample code below.

IVersionable item = iconfig.fetchPartialItem(vhandle, Arrays.asList(properties), monitor);

IFolderHandle parent=null;



if(item instanceof IFolder)

{

	path = "\\"+((IFolder)item).getName();

	parent = ((IFolder)item).getParent();

}

else if(item instanceof IFileItem)

{

	path = "\\"+((IFileItem)item).getName();

	parent = ((IFileItem)item).getParent();

}

Hi there,

I'm trying to get the content from a file (line per line) in a server-side plugin, but a get the next error:

java.lang.ClassCastException: com.ibm.team.filesystem.common.internal.impl.FileItemImpl incompatible with com.ibm.team.filesystem.common.IFileItem

I made this in a client-side code and this worked succesfull
**
IFileItem file = (IFileItem) versionable.getFullState();
IFileContent content = file.getContent();
IFileContentManager contentManager = FileSystemCore.getContentManager(repo);
**

This is my server-side code
-----------------------
IScmService scmService = getService(IScmService.class);

while (changeSetIterator.hasNext()) {

IChangeSet changeSet = (IChangeSet) changeSetIterator.next();
for (IChange change : (List<IChange>) changeSet.changes()) {

IVersionableHandle versionableHandle = change.afterState();
IVersionable item = (IVersionable) scmService.fetchState(versionableHandle, null, null);
IFilteItem file = (IFileItem)item;

}
}
--------------------------

sorry for my english

thanks in advance

In fact, it is a test file that i made: consulta.sql

I don't have an IConfiguration object in a server side plugin....right???

You should check if it's a file or folder as sample code below.

IVersionable item = iconfig.fetchPartialItem(vhandle, Arrays.asList(properties), monitor);

IFolderHandle parent=null;



if(item instanceof IFolder)

{

	path = "\\"+((IFolder)item).getName();

	parent = ((IFolder)item).getParent();

}

else if(item instanceof IFileItem)

{

	path = "\\"+((IFileItem)item).getName();

	parent = ((IFileItem)item).getParent();

}

Hi there,

I'm trying to get the content from a file (line per line) in a server-side plugin, but a get the next error:

java.lang.ClassCastException: com.ibm.team.filesystem.common.internal.impl.FileItemImpl incompatible with com.ibm.team.filesystem.common.IFileItem

I made this in a client-side code and this worked succesfull
**
IFileItem file = (IFileItem) versionable.getFullState();
IFileContent content = file.getContent();
IFileContentManager contentManager = FileSystemCore.getContentManager(repo);
**

This is my server-side code
-----------------------
IScmService scmService = getService(IScmService.class);

while (changeSetIterator.hasNext()) {

IChangeSet changeSet = (IChangeSet) changeSetIterator.next();
for (IChange change : (List<IChange>) changeSet.changes()) {

IVersionableHandle versionableHandle = change.afterState();
IVersionable item = (IVersionable) scmService.fetchState(versionableHandle, null, null);
IFilteItem file = (IFileItem)item;

}
}
--------------------------

sorry for my english

thanks in advance

In my server plugin I do (I am only reading the first 255 bytes of the file)

		// output stream handle

		OutputStream os=null;

		// get the content manager

		IContentManager contentManager= ((ITeamRepository) attachment.getOrigin()).contentManager();

      os= new ByteArrayOutputStream(256);

		// read a little file data

		contentManager.retrieveContent(attachment.getContent(), os, monitor);

Sam

ok, but then how can I get ITeamRepository and attachment ???

in my code I'm not available to get ITeamRepository. Instead of ITeamRepository I get IRepositoryItemService:

IRepositoryItemService itemService = getService(IRepositoryItemService.class);

Here is the code (I copied it)
===========================================
public class DeliverParticipant extends AbstractService implements
IOperationParticipant {

@SuppressWarnings({ "unchecked", "null" })
public void run(AdvisableOperation arg0, IProcessConfigurationElement arg1,
IParticipantInfoCollector arg2, IProgressMonitor arg3)
throws TeamRepositoryException {

Object operationData = arg0.getOperationData();
if (!(operationData instanceof DeliverOperationData)) {
return;
}

IScmService scmService = getService(IScmService.class);
IRepositoryItemService itemService = getService(IRepositoryItemService.class);

DeliverOperationData deliverData = (DeliverOperationData) operationData;

// Foundation baselines (when stream is created)
System.out.println("+++++++++++++++++++++++++++++++++++++++++++++++++++++++");
IWorkspace destWorkspace = deliverData.getDestWorkspace();
System.out.println("Stream Name: " + destWorkspace.getName());
ComponentEntry[] entries = scmService.getComponentEntries(destWorkspace, null);
for (int i = 0; i < entries.length; i++) {
ComponentEntry componentEntry = entries;
IComponent c = (IComponent)itemService.fetchItem(componentEntry.getComponent(), null);
IBaselineHandle baseline = componentEntry.getBasis();
IBaseline b = (IBaseline) itemService.fetchItem(baseline, null);
System.out.println(c.getName() + " => " + b.getId() + " : " + b.getName());
}

// The owner and creator (team area and process for the stream)
if(destWorkspace.isStream()) {
IAuditable owner = (IAuditable) itemService.fetchItem(destWorkspace.getOwner(), null);
if(owner instanceof IProcessArea) {
System.out.println("Owner: " + ((IProcessArea)owner).getName());
}
}

List<IChangeSetHandle> changeSetHandles = deliverData.getChangeSetHandles();
IItemServiceIterator changeSetIterator = ItemServiceIteratorFactory.INSTANCE.createFetchItemsIterator(itemService, changeSetHandles.toArray(new IItemHandle), IRepositoryItemService.COMPLETE);

while (changeSetIterator.hasNext()) {
IChangeSet changeSet = (IChangeSet) changeSetIterator.next();
if (changeSet == null) {
// don't have read access to the change set
continue;
}
for (IChange change : (List<IChange>) changeSet.changes()) {
if (((change.kind() & IChange.MODIFY) == IChange.MODIFY)) {
extractChangeInformation(scmService, itemService, deliverData, changeSet, change);
}
}
}
}

private void extractChangeInformation(IScmService scm, IRepositoryItemService repo, DeliverOperationData data, IChangeSet cs, IChange change) throws TeamRepositoryException {
String comment = cs.getComment();
String creator = ((IContributor)repo.fetchItem(cs.getAuthor(), null)).getEmailAddress();
String date = cs.getLastChangeDate().toString();


IServerSideVersionedContentService contentService = getService(IServerSideVersionedContentService.class);
ServiceConfigurationProvider cfgs = ServiceConfigurationProvider.FACTORY.create(data.getDestWorkspace(), cs.getComponent());
IVersionableHandle afterStateHandle = change.afterState();
IVersionable afterState = scm.fetchState(afterStateHandle, null, null);
IVersionableHandle beforeStateHandle = change.beforeState();
IVersionable beforeState = scm.fetchState(beforeStateHandle, null, null);
if (afterState instanceof IFileItem) {
IFileItem file = (IFileItem) afterState;
IAncestorReport[] reports = scm.configurationDetermineAncestorsInHistory(cfgs, new IVersionableHandle[] {file}, null, null);

System.out.println("=======================================================");
System.out.println(getPath(reports));
System.out.println(comment);
System.out.println(creator);
System.out.println(date);
//System.err.println(Location.itemLocation(cs, getRepositoryURL()).toAbsoluteUri());
printContents("Before file", (IFileItemHandle) beforeState, ((IFileItem)beforeState).getContent(), contentService);
printContents("After file", (IFileItemHandle) afterState, ((IFileItem)afterState).getContent(), contentService);
}else if (afterState instanceof IFolder){
System.out.println("es carpeta");
}else if (afterState instanceof FileItemImpl){
System.out.println("es un FileItemImpl");
}else{
System.out.println("no es nada");
}

}

private String getPath(IAncestorReport report) {
StringBuilder sb = new StringBuilder();
Iterator i = report.getNameItemPairs().iterator();
if (i.hasNext()) {
i.next(); // discard the pair representing the root folder, since
// it carries no name
while (i.hasNext()) {
INameItemPair pair = (INameItemPair) i.next();
sb.append("/"); //$NON-NLS-1$
sb.append(pair.getName());
}
}
return sb.toString();
}

private void printContents(String prefix, IFileItemHandle file, IFileContent content, com.ibm.team.scm.service.IServerSideVersionedContentService contentService) throws TeamRepositoryException {
System.err.println(prefix + ":");
ByteArrayOutputStream outputStream = null;
try {
outputStream = new ByteArrayOutputStream();
contentService.fetchContentTrusted(file, content.getHash(), System.err);
} finally {
if (outputStream != null) {
try {
outputStream.close();
} catch (IOException e) {
// Try to close the stream. If it fails, do nothing.
}
}
}
}
=================================================


in extractChangeInformation() method, the line:

"if (afterState instanceof IFileItem) " is false because afterState is an instance of FileItemImpl

thanks

Could you please put the complete code????

In my server plugin I do (I am only reading the first 255 bytes of the file)

		// output stream handle

		OutputStream os=null;

		// get the content manager

		IContentManager contentManager= ((ITeamRepository) attachment.getOrigin()).contentManager();

      os= new ByteArrayOutputStream(256);

		// read a little file data

		contentManager.retrieveContent(attachment.getContent(), os, monitor);

Sam

the AuditableCommon object in the SaveParameters has a retrieveContent method

void retrieveContent(IContent content, OutputStream outStream, IProgressMonitor monitor) throws TeamRepositoryException;

and I can retrieve that thru the OperationAdvisor parameters

IAuditableCommon iac = ((ISaveParameter) data).getSaveOperationParameter().getAuditableCommon();

Sam

 Hi,

We are using DeliverOperationData to access changeset But the code is breaking.

if (data instanceof ISaveParameter) {

DeliverOperationData data = (DeliverOperationData) operation.getOperationData();

}

can you please suggest on this.

Since I have the Work Item save operation, the data is an instance of ISaveParameter. 
The question here is how do I get the data.getDestWorkspace() from Work Item or IsaveParameter. Or is there any other approach to get the ServiceConfigurationProvider  instance.

Is there any update on this question??