How to use

BootstrapStore

in

co.cask.cdap.internal.bootstrap

/**
 * @return whether the system is bootstrapped or not
 */
public boolean isBootstrapped() {
 return bootstrapStore.isBootstrapped();
}

/**
 * Clear bootstrap state. This should only be called in tests.
 */
@VisibleForTesting
void clear() {
 Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  ds.delete(KEY);
 });
}

/**
 * Execute the steps in the loaded bootstrap config.
 *
 * @param shouldSkip predicate that determines whether to skip a step
 * @return the result of executing the bootstrap steps.
 * @throws IllegalStateException if bootstrapping is already in progress
 * @throws InterruptedException if bootstrapping was interrupted
 */
public BootstrapResult bootstrap(Predicate<BootstrapStep> shouldSkip) throws InterruptedException {
 List<BootstrapStepResult> results = new ArrayList<>(config.getSteps().size());
 if (!bootstrapping.compareAndSet(false, true)) {
  throw new IllegalStateException("Bootstrap already in progress.");
 }
 try {
  for (BootstrapStep step : config.getSteps()) {
   results.add(executeStep(step, shouldSkip));
  }
  if (!config.getSteps().isEmpty()) {
   bootstrapStore.bootstrapped();
  }
  return new BootstrapResult(results);
 } finally {
  bootstrapping.set(false);
 }
}

@After
public void cleanupTest() {
 bootstrapStore.clear();
 EXECUTOR1.reset();
 EXECUTOR2.reset();
 EXECUTOR3.reset();
}

/**
 * Clear bootstrap state. This should only be called in tests.
 */
@VisibleForTesting
void clear() {
 Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  ds.delete(KEY);
 });
}

/**
 * Execute the steps in the loaded bootstrap config.
 *
 * @param shouldSkip predicate that determines whether to skip a step
 * @return the result of executing the bootstrap steps.
 * @throws IllegalStateException if bootstrapping is already in progress
 * @throws InterruptedException if bootstrapping was interrupted
 */
public BootstrapResult bootstrap(Predicate<BootstrapStep> shouldSkip) throws InterruptedException {
 List<BootstrapStepResult> results = new ArrayList<>(config.getSteps().size());
 if (!bootstrapping.compareAndSet(false, true)) {
  throw new IllegalStateException("Bootstrap already in progress.");
 }
 try {
  for (BootstrapStep step : config.getSteps()) {
   results.add(executeStep(step, shouldSkip));
  }
  if (!config.getSteps().isEmpty()) {
   bootstrapStore.bootstrapped();
  }
  return new BootstrapResult(results);
 } finally {
  bootstrapping.set(false);
 }
}

/**
 * Mark the CDAP instance as bootstrapped.
 */
public void bootstrapped() {
 Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  ds.write(KEY, Boolean.TRUE);
 });
}

/**
 * @return whether the system is bootstrapped or not
 */
public boolean isBootstrapped() {
 return bootstrapStore.isBootstrapped();
}

/**
 * @return whether the CDAP instance is bootstrapped.
 */
public boolean isBootstrapped() {
 return Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  return ds.exists(KEY);
 });
}

/**
 * Mark the CDAP instance as bootstrapped.
 */
public void bootstrapped() {
 Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  ds.write(KEY, Boolean.TRUE);
 });
}

/**
 * @return whether the CDAP instance is bootstrapped.
 */
public boolean isBootstrapped() {
 return Transactionals.execute(transactional, dsContext -> {
  MetadataStoreDataset ds = get(dsContext, datasetFramework);
  return ds.exists(KEY);
 });
}