Examples with Notification org.neo4j.graphdb.Notification used on opensource projects

Example 11 with Notification

use of org.neo4j.graphdb.Notification in project neo4j by neo4j.

the class AuthProceduresIT method assertNotification.

private void assertNotification(LoginContext subject, String query, Notification wantedNotification) {
    try (Transaction tx = systemDb.beginTransaction(KernelTransaction.Type.IMPLICIT, subject)) {
        Result result = tx.execute(query);
        Iterator<Notification> givenNotifications = result.getNotifications().iterator();
        if (givenNotifications.hasNext()) {
            // only checks first notification
            assertEquals(wantedNotification, givenNotifications.next());
        } else {
            fail("Expected notifications from '" + query + "'");
        }
        tx.commit();
    }
}

Example 12 with Notification

use of org.neo4j.graphdb.Notification in project neo4j by neo4j.

the class LineDelimitedEventSourceJoltSerializer method writeNotifications.

private void writeNotifications() {
    if (notifications.isEmpty()) {
        return;
    }
    try {
        jsonGenerator.writeArrayFieldStart("notifications");
        try {
            for (Notification notification : notifications) {
                jsonGenerator.writeStartObject();
                try {
                    jsonGenerator.writeStringField("code", notification.getCode());
                    jsonGenerator.writeStringField("severity", notification.getSeverity().toString());
                    jsonGenerator.writeStringField("title", notification.getTitle());
                    jsonGenerator.writeStringField("description", notification.getDescription());
                    writePosition(notification.getPosition());
                } finally {
                    jsonGenerator.writeEndObject();
                }
            }
        } finally {
            jsonGenerator.writeEndArray();
        }
    } catch (IOException e) {
        throw new ConnectionException("Failed to write to the response stream", e);
    }
}

Example 13 with Notification

use of org.neo4j.graphdb.Notification in project neo4j by neo4j.

the class ExecutionResultSerializer method writeNotifications.

private void writeNotifications(Iterable<Notification> notifications) {
    // don't add anything if notifications are empty
    if (!notifications.iterator().hasNext()) {
        return;
    }
    try {
        ensureResultsFieldClosed();
        jsonGenerator.writeArrayFieldStart("notifications");
        try {
            for (Notification notification : notifications) {
                jsonGenerator.writeStartObject();
                try {
                    jsonGenerator.writeStringField("code", notification.getCode());
                    jsonGenerator.writeStringField("severity", notification.getSeverity().toString());
                    jsonGenerator.writeStringField("title", notification.getTitle());
                    jsonGenerator.writeStringField("description", notification.getDescription());
                    writePosition(notification.getPosition());
                } finally {
                    jsonGenerator.writeEndObject();
                }
            }
        } finally {
            jsonGenerator.writeEndArray();
        }
    } catch (IOException e) {
        throw new ConnectionException("Failed to write to the response stream", e);
    }
}

Example 14 with Notification

use of org.neo4j.graphdb.Notification in project neo4j by neo4j.

the class ExecutionResultSerializer method notifications.

public void notifications(Iterable<Notification> notifications) throws IOException {
    //don't add anything if notifications are empty
    if (!notifications.iterator().hasNext()) {
        return;
    }
    try {
        ensureResultsFieldClosed();
        out.writeArrayFieldStart("notifications");
        try {
            for (Notification notification : notifications) {
                out.writeStartObject();
                try {
                    out.writeStringField("code", notification.getCode());
                    out.writeStringField("severity", notification.getSeverity().toString());
                    out.writeStringField("title", notification.getTitle());
                    out.writeStringField("description", notification.getDescription());
                    writePosition(notification.getPosition());
                } finally {
                    out.writeEndObject();
                }
            }
        } finally {
            out.writeEndArray();
        }
    } catch (IOException e) {
        throw loggedIOException(e);
    }
}

Example 15 with Notification

use of org.neo4j.graphdb.Notification in project neo4j by neo4j.

the class ExecutionResultSerializerTest method shouldReturnNotifications.

@Test
public void shouldReturnNotifications() throws IOException {
    // given
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    ExecutionResultSerializer serializer = getSerializerWith(output);
    Notification notification = NotificationCode.CARTESIAN_PRODUCT.notification(new InputPosition(1, 2, 3));
    List<Notification> notifications = Arrays.asList(notification);
    Result executionResult = mockExecutionResult(null, notifications, map("column1", "value1", "column2", "value2"));
    // when
    serializer.transactionCommitUri(URI.create("commit/uri/1"));
    serializer.statementResult(executionResult, false);
    serializer.notifications(notifications);
    serializer.finish();
    // then
    String result = output.toString(UTF_8.name());
    assertEquals("{\"commit\":\"commit/uri/1\",\"results\":[{\"columns\":[\"column1\",\"column2\"]," + "\"data\":[{\"row\":[\"value1\",\"value2\"],\"meta\":[null,null]}]}],\"notifications\":[{\"code\":\"Neo" + ".ClientNotification.Statement.CartesianProductWarning\",\"severity\":\"WARNING\",\"title\":\"This " + "query builds a cartesian product between disconnected patterns.\",\"description\":\"If a " + "part of a query contains multiple disconnected patterns, this will build a cartesian product" + " between all those parts. This may produce a large amount of data and slow down query " + "processing. While occasionally intended, it may often be possible to reformulate the query " + "that avoids the use of this cross product, perhaps by adding a relationship between the " + "different parts or by using OPTIONAL MATCH\",\"position\":{\"offset\":1,\"line\":2," + "\"column\":3}}],\"errors\":[]}", result);
}