| package org.onosproject.store.consistent.impl; |
| |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| import org.onosproject.store.service.AsyncAtomicCounter; |
| import org.onosproject.store.service.AtomicCounter; |
| import org.onosproject.store.service.AtomicCounterBuilder; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| /** |
| * Default implementation of AtomicCounterBuilder. |
| */ |
| public class DefaultAtomicCounterBuilder implements AtomicCounterBuilder { |
| |
| private String name; |
| private boolean partitionsEnabled = true; |
| private final Database partitionedDatabase; |
| private final Database inMemoryDatabase; |
| private boolean retryOnFailure = false; |
| private ScheduledExecutorService retryExecutor = null; |
| |
| public DefaultAtomicCounterBuilder(Database inMemoryDatabase, Database partitionedDatabase) { |
| this.inMemoryDatabase = inMemoryDatabase; |
| this.partitionedDatabase = partitionedDatabase; |
| } |
| |
| @Override |
| public AtomicCounterBuilder withName(String name) { |
| checkArgument(name != null && !name.isEmpty()); |
| this.name = name; |
| return this; |
| } |
| |
| @Override |
| public AtomicCounterBuilder withPartitionsDisabled() { |
| partitionsEnabled = false; |
| return this; |
| } |
| |
| @Override |
| public AtomicCounter build() { |
| validateInputs(); |
| Database database = partitionsEnabled ? partitionedDatabase : inMemoryDatabase; |
| return new DefaultAtomicCounter(name, database, retryOnFailure, retryExecutor); |
| } |
| |
| @Override |
| public AsyncAtomicCounter buildAsyncCounter() { |
| validateInputs(); |
| Database database = partitionsEnabled ? partitionedDatabase : inMemoryDatabase; |
| return new DefaultAsyncAtomicCounter(name, database, retryOnFailure, retryExecutor); |
| } |
| |
| @Override |
| public AtomicCounterBuilder withRetryOnFailure() { |
| retryOnFailure = true; |
| return this; |
| } |
| |
| @Override |
| public AtomicCounterBuilder withRetryExecutor(ScheduledExecutorService executor) { |
| this.retryExecutor = executor; |
| return this; |
| } |
| |
| private void validateInputs() { |
| if (retryOnFailure) { |
| if (retryExecutor == null) { |
| throw new IllegalArgumentException("RetryExecutor must be specified when retries are enabled"); |
| } |
| } |
| } |
| } |