Examples with ExploreException co.cask.cdap.explore.service.ExploreException used on opensource projects

Example 11 with ExploreException

use of co.cask.cdap.explore.service.ExploreException in project cdap by caskdata.

the class ExploreQueryExecutorHttpHandler method downloadQueryResults.

@POST
@Path("data/explore/queries/{id}/download")
public void downloadQueryResults(HttpRequest request, final HttpResponder responder, @PathParam("id") final String id) throws ExploreException, IOException, SQLException, HandleNotFoundException {
    // NOTE: this call is a POST because it is not idempotent: cursor of results is moved
    final QueryHandle handle = QueryHandle.fromId(id);
    doAs(handle, new Callable<Void>() {

        @Override
        public Void call() throws Exception {
            doDownloadQueryResults(responder, handle);
            return null;
        }
    });
}

Example 12 with ExploreException

use of co.cask.cdap.explore.service.ExploreException in project cdap by caskdata.

the class ExploreHttpClient method getColumns.

@Override
public QueryHandle getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) throws ExploreException, SQLException {
    String body = GSON.toJson(new ColumnsArgs(catalog, schemaPattern, tableNamePattern, columnNamePattern));
    String resource = String.format("namespaces/%s/data/explore/jdbc/columns", schemaPattern);
    HttpResponse response = doPost(resource, body, null);
    if (response.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return QueryHandle.fromId(parseResponseAsMap(response, "handle"));
    }
    throw new ExploreException("Cannot get the columns. Reason: " + response);
}

Example 13 with ExploreException

use of co.cask.cdap.explore.service.ExploreException in project cdap by caskdata.

the class ExploreHttpClient method getTableInfo.

@Override
public TableInfo getTableInfo(String namespace, @Nullable String databaseName, String table) throws ExploreException, TableNotFoundException {
    String url = String.format("namespaces/%s/data/explore/tables/%s/info", namespace, table);
    if (databaseName != null) {
        url += "?database=" + databaseName;
    }
    HttpResponse response = doGet(url);
    if (response.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return parseJson(response, TableInfo.class);
    } else if (response.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND) {
        throw new TableNotFoundException(String.format("Namespace %s, table %s not found.", namespace, table));
    }
    throw new ExploreException(String.format("Cannot get the schema of namespace %s, table %s. Reason: %s", namespace, table, response));
}

Example 14 with ExploreException

use of co.cask.cdap.explore.service.ExploreException in project cdap by caskdata.

the class DistributedStorageProviderNamespaceAdmin method delete.

@SuppressWarnings("ConstantConditions")
@Override
public void delete(NamespaceId namespaceId) throws IOException, ExploreException, SQLException {
    // delete namespace directory from filesystem
    super.delete(namespaceId);
    if (NamespaceId.DEFAULT.equals(namespaceId)) {
        return;
    }
    // delete HBase namespace
    NamespaceConfig namespaceConfig;
    try {
        namespaceConfig = namespaceQueryAdmin.get(namespaceId).getConfig();
    } catch (Exception ex) {
        throw new IOException("Could not fetch custom HBase mapping.", ex);
    }
    if (!Strings.isNullOrEmpty(namespaceConfig.getHbaseNamespace())) {
        // custom namespace mapping is set for HBase, hence don't do anything during delete since the lifecycle of the
        // namespace will be managed by the user
        LOG.debug("Custom HBase mapping {} was found while deleting {}. Hence skipping deletion of HBase namespace", namespaceConfig.getHbaseNamespace(), namespaceId);
        return;
    }
    // delete HBase namespace
    String namespace = tableUtil.getHBaseNamespace(namespaceId);
    try (HBaseDDLExecutor executor = hBaseDDLExecutorFactory.get()) {
        executor.deleteNamespaceIfExists(namespace);
    }
}

Example 15 with ExploreException

use of co.cask.cdap.explore.service.ExploreException in project cdap by caskdata.

the class ExploreHttpClient method doAddPartition.

protected QueryHandle doAddPartition(DatasetId datasetInstance, DatasetSpecification spec, PartitionKey key, String path) throws ExploreException {
    Map<String, String> args = new HashMap<>();
    PartitionedFileSetArguments.setOutputPartitionKey(args, key);
    args.put("path", path);
    String tableName = ExploreProperties.getExploreTableName(spec.getProperties());
    String databaseName = ExploreProperties.getExploreDatabaseName(spec.getProperties());
    if (tableName != null) {
        args.put(ExploreProperties.PROPERTY_EXPLORE_TABLE_NAME, tableName);
    }
    if (databaseName != null) {
        args.put(ExploreProperties.PROPERTY_EXPLORE_DATABASE_NAME, databaseName);
    }
    HttpResponse response = doPost(String.format("namespaces/%s/data/explore/datasets/%s/partitions", datasetInstance.getNamespace(), datasetInstance.getDataset()), GSON.toJson(args), null);
    if (response.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return QueryHandle.fromId(parseResponseAsMap(response, "handle"));
    }
    throw new ExploreException(String.format("Cannot add partition with key %s to dataset %s. Reason: %s", key, datasetInstance.toString(), response));
}