@Override
protected Object doExecute() throws Exception {
FabricValidations.validateContainerNames(containerIds);
// check and validate version
Version version = profileService.getRequiredVersion(this.version);
if (containerIds == null || containerIds.isEmpty()) {
if (all) {
containerIds = new ArrayList<String>();
for (Container container : fabricService.getContainers()) {
containerIds.add(container.getId());
}
} else {
containerIds = Arrays.asList(fabricService.getCurrentContainer().getId());
}
} else {
if (all) {
throw new IllegalArgumentException("Can not use --all with a list of containers simultaneously");
}
}
List<Container> toRollback = new ArrayList<Container>();
List<Container> same = new ArrayList<Container>();
for (String containerName : containerIds) {
Container container = FabricCommand.getContainer(fabricService, containerName);
// check first that all can rollback
int num = ContainerUpgradeSupport.canRollback(version, container);
if (num < 0) {
throw new IllegalArgumentException("Container " + container.getId() + " has already lower version " + container.getVersion().getId()
+ " than the requested version " + version.getId() + " to rollback.");
} else if (num == 0) {
// same version
same.add(container);
} else {
// needs rollback
toRollback.add(container);
}
}
// report same version
for (Container container : same) {
System.out.println("Container " + container.getId() + " is already version " + version.getId());
}
// report and do rollbacks
for (Container container : toRollback) {
Version oldVersion = container.getVersion();
// rollback version first
container.setVersion(version);
log.info("Rolled back container {} from {} to {}", new Object[]{container.getId(), oldVersion.getId(), version.getId()});
System.out.println("Rolled back container " + container.getId() + " from version " + oldVersion.getId() + " to " + version.getId());
}
if (all) {
fabricService.setDefaultVersionId(version.getId());
System.out.println("Changed default version to " + version.getId());