io.stargate.graphql.schema.cqlfirst.ddl.fetchers.AllKeyspacesFetcher Maven / Gradle / Ivy

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/*
 * Copyright The Stargate Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.stargate.graphql.schema.cqlfirst.ddl.fetchers;

import graphql.schema.DataFetchingEnvironment;
import io.stargate.auth.SourceAPI;
import io.stargate.auth.UnauthorizedException;
import io.stargate.auth.entity.ResourceKind;
import io.stargate.graphql.schema.CassandraFetcher;
import io.stargate.graphql.web.StargateGraphqlContext;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class AllKeyspacesFetcher extends CassandraFetcher> {

  private static final Logger LOG = LoggerFactory.getLogger(AllKeyspacesFetcher.class);

  @Override
  protected List get(
      DataFetchingEnvironment environment, StargateGraphqlContext context) {

    return context.getDataStore().schema().keyspaces().stream()
        .filter(
            keyspace -> {
              try {
                context
                    .getAuthorizationService()
                    .authorizeSchemaRead(
                        context.getSubject(),
                        Collections.singletonList(keyspace.name()),
                        null,
                        SourceAPI.GRAPHQL,
                        ResourceKind.KEYSPACE);
                return true;
              } catch (UnauthorizedException e) {
                LOG.debug("Not returning keyspace {} due to not being authorized", keyspace.name());
                return false;
              }
            })
        .map(
            keyspace ->
                new KeyspaceDto(keyspace, context.getAuthorizationService(), context.getSubject()))
        .collect(Collectors.toList());
  }
}