content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 com.datastax.oss.driver.internal.core.cql;
  
  import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
  import com.datastax.oss.driver.api.core.cql.ExecutionInfo;
  import com.datastax.oss.driver.api.core.cql.PagingState;
  import com.datastax.oss.driver.api.core.cql.QueryTrace;
  import com.datastax.oss.driver.api.core.cql.Statement;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.api.core.session.Request;
  import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
  import com.datastax.oss.driver.internal.core.session.DefaultSession;
  import com.datastax.oss.driver.internal.core.util.concurrent.CompletableFutures;
  import com.datastax.oss.protocol.internal.Frame;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import edu.umd.cs.findbugs.annotations.Nullable;
  import java.nio.ByteBuffer;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  import java.util.UUID;
  import java.util.concurrent.CompletionStage;
  import net.jcip.annotations.Immutable;
  
  @Immutable
  public class DefaultExecutionInfo implements ExecutionInfo {
  
    private final Request request;
    private final Node coordinator;
    private final int speculativeExecutionCount;
    private final int successfulExecutionIndex;
    private final List<Map.Entry<Node, Throwable>> errors;
    private final ByteBuffer pagingState;
    private final UUID tracingId;
    private final int responseSizeInBytes;
    private final int compressedResponseSizeInBytes;
    private final List<String> warnings;
    private final Map<String, ByteBuffer> customPayload;
    private final boolean schemaInAgreement;
    private final DefaultSession session;
    private final InternalDriverContext context;
    private final DriverExecutionProfile executionProfile;
  
    public DefaultExecutionInfo(
        Request request,
        Node coordinator,
        int speculativeExecutionCount,
        int successfulExecutionIndex,
        List<Map.Entry<Node, Throwable>> errors,
        ByteBuffer pagingState,
        Frame frame,
        boolean schemaInAgreement,
        DefaultSession session,
        InternalDriverContext context,
        DriverExecutionProfile executionProfile) {
  
      this.request = request;
      this.coordinator = coordinator;
      this.speculativeExecutionCount = speculativeExecutionCount;
      this.successfulExecutionIndex = successfulExecutionIndex;
      this.errors = errors;
      this.pagingState = pagingState;
  
      this.tracingId = (frame == null) ? null : frame.tracingId;
      this.responseSizeInBytes = (frame == null) ? -1 : frame.size;
      this.compressedResponseSizeInBytes = (frame == null) ? -1 : frame.compressedSize;
      // Note: the collections returned by the protocol layer are already unmodifiable
      this.warnings = (frame == null) ? Collections.emptyList() : frame.warnings;
      this.customPayload = (frame == null) ? Collections.emptyMap() : frame.customPayload;
      this.schemaInAgreement = schemaInAgreement;
      this.session = session;
      this.context = context;
      this.executionProfile = executionProfile;
    }
  
    @NonNull
    @Override
    @Deprecated
    public Statement<?> getStatement() {
      return (Statement<?>) request;
    }
  
    @NonNull
    @Override
    public Request getRequest() {
      return request;
    }
  
    @Nullable
    @Override
    public Node getCoordinator() {
      return coordinator;
    }
  
    @Override
    public int getSpeculativeExecutionCount() {
      return speculativeExecutionCount;
    }
  
    @Override
    public int getSuccessfulExecutionIndex() {
      return successfulExecutionIndex;
    }
  
    @NonNull
    @Override
    public List<Map.Entry<Node, Throwable>> getErrors() {
      // Assume this method will be called 0 or 1 time, so we create the unmodifiable wrapper on
      // demand.
      return (errors == null) ? Collections.emptyList() : Collections.unmodifiableList(errors);
    }
  
    @Override
    @Nullable
    public ByteBuffer getPagingState() {
      return pagingState;
    }
  
    @Nullable
    @Override
    public PagingState getSafePagingState() {
      if (pagingState == null) {
        return null;
      } else {
        if (!(request instanceof Statement)) {
          throw new IllegalStateException("Only statements should have a paging state");
        }
        Statement<?> statement = (Statement<?>) request;
        return new DefaultPagingState(pagingState, statement, session.getContext());
      }
    }
  
    @NonNull
    @Override
    public List<String> getWarnings() {
      return warnings;
    }
  
    @NonNull
    @Override
    public Map<String, ByteBuffer> getIncomingPayload() {
      return customPayload;
    }
  
    @Override
    public boolean isSchemaInAgreement() {
      return schemaInAgreement;
    }
  
    @Override
    @Nullable
    public UUID getTracingId() {
      return tracingId;
    }
  
    @NonNull
    @Override
    public CompletionStage<QueryTrace> getQueryTraceAsync() {
      if (tracingId == null) {
        return CompletableFutures.failedFuture(
            new IllegalStateException("Tracing was disabled for this request"));
      } else {
        return new QueryTraceFetcher(tracingId, session, context, executionProfile).fetch();
      }
    }
  
    @Override
    public int getResponseSizeInBytes() {
      return responseSizeInBytes;
    }
  
    @Override
    public int getCompressedResponseSizeInBytes() {
      return compressedResponseSizeInBytes;
    }
  }
  