Examples of Saga

com.codebullets.sagalib.Saga
Represents a single saga. A saga contains state and handles different messages and events. @param < SAGA_STATE> Type of the saga state persisted between message handling.
org.axonframework.saga.Saga
Interface describing an implementation of a Saga. Sagas are instances that handle events and may possibly produce new commands or have other side effects. Typically, Sagas are used to manage long running business transactions.
Multiple instances of a single type of Saga may exist. In that case, each Saga will be managing a different transaction. Sagas need to be associated with concepts in order to receive specific events. These associations are managed through AssociationValues. For example, to associate a saga with an Order with ID 1234, this saga needs an association value with key "orderId" and value "1234". @author Allard Buijze @since 0.7

Examples of com.codebullets.sagalib.Saga


        String key = keyExtractor.findSagaInstanceKey(sagaToContinue, message);
        if (key != null) {
            Collection<? extends SagaState> sagaStates = stateStorage.load(sagaToContinue.getName(), key);
            for (SagaState sagaState : sagaStates) {
                Saga saga = continueSaga(sagaToContinue, sagaState);
                if (saga != null) {
                    sagas.add(saga);
                }
            }
        } else {

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Examples of com.codebullets.sagalib.Saga


    /**
     * Creates a new saga instance and attaches the existing saga state.
     */
    private Saga continueSaga(final Class<? extends Saga> sagaToContinue, final SagaState existingSate) {
        Saga saga;


        try {
            saga = createNewSagaInstance(sagaToContinue);
            saga.setState(existingSate);
        } catch (Exception ex) {
            saga = null;
            LOG.error("Unable to create new instance of saga type {}.", sagaToContinue, ex);
        }

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Examples of com.codebullets.sagalib.Saga


    /**
     * Create a new saga instance based on fully qualified name and the existing saga state.
     */
    private Saga continueSaga(final String sagaToContinue, final SagaState existingState) {
        Saga saga = null;


        try {
            Class clazz = Class.forName(sagaToContinue);
            saga = continueSaga(clazz, existingState);
        } catch (Exception ex) {

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Examples of com.codebullets.sagalib.Saga


    /**
     * Starts a new saga by creating an instance and attaching a new saga state.
     */
    private Saga startNewSaga(final Class<? extends Saga> sagaToStart) {
        Saga createdSaga = null;


        try {
            createdSaga = createNewSagaInstance(sagaToStart);
            createdSaga.createNewState();


            SagaState newState = createdSaga.state();
            newState.setSagaId(UUID.randomUUID().toString());
            newState.setType(sagaToStart.getName());
        } catch (Exception ex) {
            LOG.error("Unable to create new instance of saga type {}.", sagaToStart, ex);
        }

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Examples of org.axonframework.saga.Saga


        reset(sagaCache, associationsCache);


        when(repository.load("id")).thenReturn(saga);


        Saga actual = testSubject.load("id");
        assertSame(saga, actual);


        verify(sagaCache).get("id");
        verify(sagaCache).put("id", saga);
        verify(associationsCache, never()).put(any(), any());

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Examples of org.axonframework.saga.Saga

    @Test
    public void testAddAndLoadSaga_ByIdentifier() {
        String identifier = UUID.randomUUID().toString();
        StubSaga saga = new StubSaga(identifier);
        repository.add(saga);
        Saga loaded = repository.load(identifier);
        assertEquals(identifier, loaded.getSagaIdentifier());
        assertNotNull(entityManager.find(SagaEntry.class, identifier));
    }

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Examples of org.axonframework.saga.Saga

        StubSaga saga = new StubSaga(identifier);
        saga.registerAssociationValue(new AssociationValue("key", "value"));
        repository.add(saga);
        Set<String> loaded = repository.find(StubSaga.class, new AssociationValue("key", "value"));
        assertEquals(1, loaded.size());
        Saga loadedSaga = repository.load(loaded.iterator().next());
        assertEquals(identifier, loadedSaga.getSagaIdentifier());
        assertNotNull(entityManager.find(SagaEntry.class, identifier));
    }

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Examples of org.axonframework.saga.Saga

        repository.add(saga);
        saga.registerAssociationValue(new AssociationValue("key", "value"));
        repository.commit(saga);
        Set<String> loaded = repository.find(StubSaga.class, new AssociationValue("key", "value"));
        assertEquals(1, loaded.size());
        Saga loadedSaga = repository.load(loaded.iterator().next());
        assertEquals(identifier, loadedSaga.getSagaIdentifier());
        assertNotNull(entityManager.find(SagaEntry.class, identifier));
    }

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Examples of org.axonframework.saga.Saga

        String identifier = UUID.randomUUID().toString();
        StubSaga saga = new StubSaga(identifier);
        entityManager.persist(new SagaEntry(saga, new XStreamSerializer()));
        entityManager.flush();
        entityManager.clear();
        Saga loaded = repository.load(identifier);
        assertNotSame(saga, loaded);
        assertEquals(identifier, loaded.getSagaIdentifier());
    }

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Examples of org.axonframework.saga.Saga

                                                        identifier, new AssociationValue("key", "value")));
        entityManager.flush();
        entityManager.clear();
        Set<String> loaded = repository.find(StubSaga.class, new AssociationValue("key", "value"));
        assertEquals(1, loaded.size());
        Saga loadedSaga = repository.load(loaded.iterator().next());
        assertEquals(identifier, loadedSaga.getSagaIdentifier());
        assertNotSame(loadedSaga, saga);
        assertNotNull(entityManager.find(SagaEntry.class, identifier));
    }

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