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.dse.driver.internal.core.metadata.schema;
  
  import com.datastax.dse.driver.api.core.metadata.schema.DseFunctionMetadata;
  import com.datastax.oss.driver.api.core.CqlIdentifier;
  import com.datastax.oss.driver.api.core.metadata.schema.FunctionSignature;
  import com.datastax.oss.driver.api.core.type.DataType;
  import com.datastax.oss.driver.internal.core.metadata.schema.DefaultFunctionMetadata;
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import edu.umd.cs.findbugs.annotations.Nullable;
  import java.util.List;
  import java.util.Objects;
  import java.util.Optional;
  import net.jcip.annotations.Immutable;
  
  @Immutable
  public class DefaultDseFunctionMetadata extends DefaultFunctionMetadata
      implements DseFunctionMetadata {
  
    @Nullable private final Boolean deterministic;
    @Nullable private final Monotonicity monotonicity;
    @NonNull private final List<CqlIdentifier> monotonicArgumentNames;
  
    public DefaultDseFunctionMetadata(
        @NonNull CqlIdentifier keyspace,
        @NonNull FunctionSignature signature,
        @NonNull List<CqlIdentifier> parameterNames,
        @NonNull String body,
        boolean calledOnNullInput,
        @NonNull String language,
        @NonNull DataType returnType,
        @Nullable Boolean deterministic,
        @Nullable Boolean monotonic,
        @NonNull List<CqlIdentifier> monotonicArgumentNames) {
      super(keyspace, signature, parameterNames, body, calledOnNullInput, language, returnType);
      // set DSE extension attributes
      this.deterministic = deterministic;
      this.monotonicity =
          monotonic == null
              ? null
              : monotonic
                  ? Monotonicity.FULLY_MONOTONIC
                  : monotonicArgumentNames.isEmpty()
                      ? Monotonicity.NOT_MONOTONIC
                      : Monotonicity.PARTIALLY_MONOTONIC;
      this.monotonicArgumentNames = ImmutableList.copyOf(monotonicArgumentNames);
    }
  
    @Override
    @Deprecated
    public boolean isDeterministic() {
      return deterministic != null && deterministic;
    }
  
    @Override
    public Optional<Boolean> getDeterministic() {
      return Optional.ofNullable(deterministic);
    }
  
    @Override
    @Deprecated
    public boolean isMonotonic() {
      return monotonicity == Monotonicity.FULLY_MONOTONIC;
    }
  
    @Override
    public Optional<Monotonicity> getMonotonicity() {
      return Optional.ofNullable(monotonicity);
    }
  
    @NonNull
    @Override
    public List<CqlIdentifier> getMonotonicArgumentNames() {
      return this.monotonicArgumentNames;
    }
  
    @Override
    public boolean equals(Object other) {
      if (other == this) {
        return true;
      } else if (other instanceof DseFunctionMetadata) {
        DseFunctionMetadata that = (DseFunctionMetadata) other;
        return Objects.equals(this.getKeyspace(), that.getKeyspace())
            && Objects.equals(this.getSignature(), that.getSignature())
            && Objects.equals(this.getParameterNames(), that.getParameterNames())
            && Objects.equals(this.getBody(), that.getBody())
            && this.isCalledOnNullInput() == that.isCalledOnNullInput()
            && Objects.equals(this.getLanguage(), that.getLanguage())
            && Objects.equals(this.getReturnType(), that.getReturnType())
            && Objects.equals(this.deterministic, that.getDeterministic().orElse(null))
            && this.monotonicity == that.getMonotonicity().orElse(null)
            && Objects.equals(this.monotonicArgumentNames, that.getMonotonicArgumentNames());
      } else {
        return false;
      }
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(
          getKeyspace(),
          getSignature(),
          getParameterNames(),
          getBody(),
          isCalledOnNullInput(),
          getLanguage(),
          getReturnType(),
          deterministic,
          monotonicity,
          monotonicArgumentNames);
    }
  
    @Override
    public String toString() {
      return "Function Name: "
          + this.getSignature().getName().asCql(false)
          + ", Keyspace: "
          + this.getKeyspace().asCql(false)
          + ", Language: "
          + this.getLanguage()
          + ", Return Type: "
          + getReturnType().asCql(false, false)
          + ", Deterministic: "
          + this.deterministic
          + ", Monotonicity: "
          + this.monotonicity
          + ", Monotonic On: "
          + (this.monotonicArgumentNames.isEmpty() ? "" : this.monotonicArgumentNames.get(0));
    }
  }
  