| package org.apache.aries.tx.control.service.common.impl; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicReference; |
| import java.util.function.Consumer; |
| |
| import org.osgi.service.transaction.control.TransactionContext; |
| import org.osgi.service.transaction.control.TransactionStatus; |
| |
| public abstract class AbstractTransactionContextImpl implements TransactionContext { |
| |
| protected final AtomicReference<Throwable> firstUnexpectedException = new AtomicReference<>(); |
| |
| protected final List<Throwable> subsequentExceptions = new ArrayList<>(); |
| |
| protected final List<Runnable> preCompletion = new ArrayList<>(); |
| |
| protected final List<Consumer<TransactionStatus>> postCompletion = new ArrayList<>(); |
| |
| protected final Map<Object, Object> scopedVariables = new HashMap<>(); |
| |
| @Override |
| public Object getScopedValue(Object key) { |
| return scopedVariables.get(key); |
| } |
| |
| @Override |
| public void putScopedValue(Object key, Object value) { |
| scopedVariables.put(key, value); |
| } |
| |
| protected void beforeCompletion(Runnable onFirstError) { |
| preCompletion.stream().forEach(r -> { |
| try { |
| r.run(); |
| } catch (Exception e) { |
| if (firstUnexpectedException.compareAndSet(null, e)) { |
| onFirstError.run(); |
| } else { |
| subsequentExceptions.add(e); |
| } |
| // TODO log this |
| } |
| }); |
| } |
| |
| protected void afterCompletion(TransactionStatus status) { |
| postCompletion.stream().forEach(c -> { |
| try { |
| c.accept(status); |
| } catch (Exception e) { |
| recordFailure(e); |
| // TODO log this |
| } |
| }); |
| } |
| |
| protected abstract boolean isAlive(); |
| |
| protected void recordFailure(Throwable failure) { |
| if (!firstUnexpectedException.compareAndSet(null, failure)) { |
| subsequentExceptions.add(failure); |
| } |
| } |
| |
| protected abstract void safeSetRollbackOnly(); |
| |
| public abstract void finish(); |
| } |