/**
* @param projectId
* @param changePackage
* @param projectHistory
* @param newVersion
* @param newProjectState
* @throws FatalESException
*/
private void trySave(
ProjectId projectId,
AbstractChangePackage changePackage,
final ProjectHistory projectHistory,
Version newVersion,
final Project newProjectState)
throws FatalESException {
getResourceHelper()
.createResourceForProject(
newProjectState, newVersion.getPrimarySpec(), projectHistory.getProjectId());
getResourceHelper()
.createResourceForChangePackage(changePackage, newVersion.getPrimarySpec(), projectId);
if (FileBasedChangePackage.class.isInstance(changePackage)) {
try {
/* move the temporary file to the project folder */
final URI uri = changePackage.eResource().getURI();
final URI normalizedUri =
changePackage.eResource().getResourceSet().getURIConverter().normalize(uri);
final String filePath = normalizedUri.toFileString() + ".1"; // $NON-NLS-1$
FileBasedChangePackage.class.cast(changePackage).move(filePath);
ModelUtil.saveResource(changePackage.eResource(), ModelUtil.getResourceLogger());
} catch (final IOException ex) {
throw new FatalESException(StorageException.NOSAVE, ex);
}
}
getResourceHelper().createResourceForVersion(newVersion, projectHistory.getProjectId());
newVersion.setProjectStateResource(newProjectState.eResource());
newVersion.setChangeResource(changePackage.eResource());
}
private PrimaryVersionSpec resolvePagedUpdateVersionSpec(
ProjectHistory projectHistory, PagedUpdateVersionSpec baseVersion) {
int changes = 0;
PrimaryVersionSpec resolvedSpec = baseVersion.getBaseVersionSpec();
int maxChanges = baseVersion.getMaxChanges();
int i = resolvedSpec.getIdentifier();
AbstractChangePackage cp = projectHistory.getVersions().get(i).getChanges();
if (i == projectHistory.getVersions().size() - 1) {
return projectHistory.getVersions().get(i).getPrimarySpec();
}
do {
cp = projectHistory.getVersions().get(++i).getChanges();
} while (cp == null && i < projectHistory.getVersions().size());
// pull at least one change package
if (cp.leafSize() > maxChanges) {
maxChanges = cp.leafSize();
}
while (changes < maxChanges && i < projectHistory.getVersions().size()) {
resolvedSpec = projectHistory.getVersions().get(i).getPrimarySpec();
final Version version = projectHistory.getVersions().get(i);
final AbstractChangePackage changePackage = version.getChanges();
if (changePackage != null) {
final int size = changePackage.leafSize();
if (changes + size >= maxChanges) {
resolvedSpec = projectHistory.getVersions().get(i).getPrimarySpec();
break;
}
changes += size;
}
i += 1;
}
return resolvedSpec;
}
/**
* Returns all changes within the specified version range for a given project.
*
* @param projectId the ID of a project
* @param source the source version
* @param target the target version (inclusive)
* @return a list of change packages containing all the changes for the specified version range
* @throws InvalidVersionSpecException if an invalid version has been specified
* @throws ESException in case of failure
*/
@ESMethod(MethodId.GETCHANGES)
public List<AbstractChangePackage> getChanges(
ProjectId projectId, VersionSpec source, VersionSpec target)
throws InvalidVersionSpecException, ESException {
sanityCheckObjects(projectId, source, target);
final PrimaryVersionSpec resolvedSource = resolveVersionSpec(projectId, source);
final PrimaryVersionSpec resolvedTarget = resolveVersionSpec(projectId, target);
// if target and source are equal return empty list
if (resolvedSource.getIdentifier() == resolvedTarget.getIdentifier()) {
return new ArrayList<AbstractChangePackage>();
}
synchronized (getMonitor()) {
final boolean updateForward = resolvedTarget.getIdentifier() > resolvedSource.getIdentifier();
// Example: if you want the changes to get from version 5 to 7, you
// need the changes contained in version 6
// and 7. The reason is that each version holds the changes which
// occurred from the predecessor to the
// version itself. Version 5 holds the changes to get from version 4
// to 5 and therefore is irrelevant.
// For that reason the first version is removed, since getVersions
// always sorts ascending order.
final List<Version> versions = getVersions(projectId, resolvedSource, resolvedTarget);
if (versions.size() > 1) {
versions.remove(0);
}
List<AbstractChangePackage> result = new ArrayList<AbstractChangePackage>();
for (final Version version : versions) {
final AbstractChangePackage changes = version.getChanges();
if (changes != null) {
changes.setLogMessage(ModelUtil.clone(version.getLogMessage()));
result.add(changes);
}
}
// if source is after target in time
if (!updateForward) {
// reverse list and change packages
final List<AbstractChangePackage> resultReverse = new ArrayList<AbstractChangePackage>();
for (final AbstractChangePackage changePackage : result) {
final ChangePackage changePackageReverse =
VersioningFactory.eINSTANCE.createChangePackage();
final ESCloseableIterable<AbstractOperation> reversedOperations =
changePackage.reversedOperations();
final ArrayList<AbstractOperation> copiedReversedOperations =
new ArrayList<AbstractOperation>();
try {
for (final AbstractOperation op : reversedOperations.iterable()) {
copiedReversedOperations.add(op.reverse());
}
} finally {
reversedOperations.close();
}
for (final AbstractOperation reversedOperation : copiedReversedOperations) {
changePackageReverse.add(reversedOperation);
}
// copy again log message
// reverse() created a new change package without copying
// existent attributes
changePackageReverse.setLogMessage(ModelUtil.clone(changePackage.getLogMessage()));
resultReverse.add(changePackageReverse);
}
Collections.reverse(resultReverse);
result = resultReverse;
}
return result;
}
}
private PrimaryVersionSpec internalCreateVersion(
ProjectId projectId,
PrimaryVersionSpec baseVersionSpec,
AbstractChangePackage changePackage,
BranchVersionSpec targetBranch,
PrimaryVersionSpec sourceVersion,
LogMessage logMessage,
final ACUser user)
throws ESException {
synchronized (getMonitor()) {
final long currentTimeMillis = System.currentTimeMillis();
final ProjectHistory projectHistory =
getSubInterface(ProjectSubInterfaceImpl.class).getProject(projectId);
// Find branch
final BranchInfo baseBranch = getBranchInfo(projectHistory, baseVersionSpec);
final Version baseVersion = getVersion(projectHistory, baseVersionSpec);
if (baseVersion == null || baseBranch == null) {
throw new InvalidVersionSpecException(
Messages.VersionSubInterfaceImpl_InvalidBranchOrVersion);
}
// defined here fore scoping reasons
Version newVersion = null;
BranchInfo newBranch = null;
// copy project and apply changes
final Project newProjectState =
((ProjectImpl) getSubInterface(ProjectSubInterfaceImpl.class).getProject(baseVersion))
.copy();
changePackage.apply(newProjectState);
// regular commit
if (isRegularCommit(targetBranch, baseVersion)) {
newVersion =
performRegularCommit(
baseVersionSpec,
logMessage,
user,
projectHistory,
baseBranch,
baseVersion,
newProjectState);
// case for new branch creation
} else if (isNewBranchCommit(targetBranch, projectHistory)) {
checkNewBranchCommitPreRequisites(targetBranch.getBranch());
// when branch does NOT exist, create new branch
newVersion = createVersion(projectHistory, newProjectState, logMessage, user, baseVersion);
newBranch =
createNewBranch(
projectHistory,
baseVersion.getPrimarySpec(),
newVersion.getPrimarySpec(),
targetBranch);
newVersion.setAncestorVersion(baseVersion);
} else {
// This point only can be reached with invalid input
throw new IllegalStateException(
Messages.VersionSubInterfaceImpl_TargetBranchCombination_Invalid);
}
if (sourceVersion != null) {
newVersion.getMergedFromVersion().add(getVersion(projectHistory, sourceVersion));
}
// try to save
try {
try {
trySave(projectId, changePackage, projectHistory, newVersion, newProjectState);
} catch (final FatalESException e) {
// try to roll back. removing version is necessary in all cases
rollback(projectHistory, baseBranch, baseVersion, newVersion, newBranch, e);
}
// if ancestor isn't null, a new branch was created. In this
// case we want to keep the old base project
// state
if (newVersion.getAncestorVersion() == null && baseVersion.getProjectState() != null) {
// delete projectstate from last revision depending on
// persistence policy
deleteOldProjectStateAccordingToOptions(projectId, baseVersion);
}
save(baseVersion);
save(projectHistory);
} catch (final FatalESException e) {
// roll back failed
EMFStoreController.getInstance().shutdown(e);
throw new ESException(Messages.VersionSubInterfaceImpl_ShuttingServerDown);
}
ModelUtil.logInfo(
Messages.VersionSubInterfaceImpl_TotalTimeForCommit
+ (System.currentTimeMillis() - currentTimeMillis));
return newVersion.getPrimarySpec();
}
}
