Examples with AddUniqueConstraintMessage org.apache.hadoop.hive.metastore.messaging.AddUniqueConstraintMessage used on opensource projects

Example 1 with AddUniqueConstraintMessage

use of org.apache.hadoop.hive.metastore.messaging.AddUniqueConstraintMessage in project hive by apache.

the class DbNotificationListener method onAddUniqueConstraint.

/**
 * @param addUniqueConstraintEvent add unique constraint event
 * @throws MetaException
 */
@Override
public void onAddUniqueConstraint(AddUniqueConstraintEvent addUniqueConstraintEvent) throws MetaException {
    List<SQLUniqueConstraint> cols = addUniqueConstraintEvent.getUniqueConstraintCols();
    if (cols.size() > 0) {
        AddUniqueConstraintMessage msg = MessageBuilder.getInstance().buildAddUniqueConstraintMessage(addUniqueConstraintEvent.getUniqueConstraintCols());
        NotificationEvent event = new NotificationEvent(0, now(), EventType.ADD_UNIQUECONSTRAINT.toString(), msgEncoder.getSerializer().serialize(msg));
        event.setCatName(cols.get(0).isSetCatName() ? cols.get(0).getCatName() : DEFAULT_CATALOG_NAME);
        event.setDbName(cols.get(0).getTable_db());
        event.setTableName(cols.get(0).getTable_name());
        process(event, addUniqueConstraintEvent);
    }
}

Example 2 with AddUniqueConstraintMessage

use of org.apache.hadoop.hive.metastore.messaging.AddUniqueConstraintMessage in project hive by apache.

the class LoadConstraint method isUniqueConstraintsAlreadyLoaded.

private boolean isUniqueConstraintsAlreadyLoaded(String uksMsgString) throws Exception {
    AddUniqueConstraintMessage msg = deserializer.getAddUniqueConstraintMessage(uksMsgString);
    List<SQLUniqueConstraint> uksInMsg = msg.getUniqueConstraints();
    if (uksInMsg.isEmpty()) {
        return true;
    }
    String dbName = StringUtils.isBlank(dbNameToLoadIn) ? uksInMsg.get(0).getTable_db() : dbNameToLoadIn;
    List<SQLUniqueConstraint> uks;
    try {
        uks = context.hiveDb.getUniqueConstraintList(dbName, uksInMsg.get(0).getTable_name());
    } catch (NoSuchObjectException e) {
        return false;
    }
    return CollectionUtils.isNotEmpty(uks);
}

Example 3 with AddUniqueConstraintMessage

use of org.apache.hadoop.hive.metastore.messaging.AddUniqueConstraintMessage in project hive by apache.

the class AddUniqueConstraintHandler method handle.

@Override
public List<Task<?>> handle(Context context) throws SemanticException {
    AddUniqueConstraintMessage msg = deserializer.getAddUniqueConstraintMessage(context.dmd.getPayload());
    List<SQLUniqueConstraint> uks;
    try {
        uks = msg.getUniqueConstraints();
    } catch (Exception e) {
        if (!(e instanceof SemanticException)) {
            throw new SemanticException("Error reading message members", e);
        } else {
            throw (SemanticException) e;
        }
    }
    List<Task<?>> tasks = new ArrayList<Task<?>>();
    if (uks.isEmpty()) {
        return tasks;
    }
    final String actualDbName = context.isDbNameEmpty() ? uks.get(0).getTable_db() : context.dbName;
    final String actualTblName = uks.get(0).getTable_name();
    final TableName tName = TableName.fromString(actualTblName, null, actualDbName);
    for (SQLUniqueConstraint uk : uks) {
        uk.setTable_db(actualDbName);
        uk.setTable_name(actualTblName);
    }
    Constraints constraints = new Constraints(null, null, null, uks, null, null);
    AlterTableAddConstraintDesc addConstraintsDesc = new AlterTableAddConstraintDesc(tName, context.eventOnlyReplicationSpec(), constraints);
    Task<DDLWork> addConstraintsTask = TaskFactory.get(new DDLWork(readEntitySet, writeEntitySet, addConstraintsDesc, true, context.getDumpDirectory(), context.getMetricCollector()), context.hiveConf);
    tasks.add(addConstraintsTask);
    context.log.debug("Added add constrains task : {}:{}", addConstraintsTask.getId(), actualTblName);
    updatedMetadata.set(context.dmd.getEventTo().toString(), actualDbName, actualTblName, null);
    return Collections.singletonList(addConstraintsTask);
}