/*
 * Copyright 2020 Google LLC
 *
 * 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
 *
 *     https://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.
 */
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/cloud/dialogflow/v2/participant.proto

package com.google.cloud.dialogflow.v2;

/**
 *
 *
 * <pre>
 * Represents article answer.
 * </pre>
 *
 * Protobuf type {@code google.cloud.dialogflow.v2.ArticleAnswer}
 */
public final class ArticleAnswer extends com.google.protobuf.GeneratedMessageV3
    implements
    // @@protoc_insertion_point(message_implements:google.cloud.dialogflow.v2.ArticleAnswer)
    ArticleAnswerOrBuilder {
  private static final long serialVersionUID = 0L;
  // Use ArticleAnswer.newBuilder() to construct.
  private ArticleAnswer(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
    super(builder);
  }

  private ArticleAnswer() {
    title_ = "";
    uri_ = "";
    snippets_ = com.google.protobuf.LazyStringArrayList.EMPTY;
    answerRecord_ = "";
  }

  @java.lang.Override
  @SuppressWarnings({"unused"})
  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
    return new ArticleAnswer();
  }

  @java.lang.Override
  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
    return this.unknownFields;
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  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
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        .internal_static_google_cloud_dialogflow_v2_ArticleAnswer_descriptor;
  }

  @SuppressWarnings({"rawtypes"})
  @java.lang.Override
  protected com.google.protobuf.MapField internalGetMapField(int number) {
    switch (number) {
      case 5:
        return internalGetMetadata();
      default:
        throw new RuntimeException("Invalid map field number: " + number);
    }
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internalGetFieldAccessorTable() {
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        .internal_static_google_cloud_dialogflow_v2_ArticleAnswer_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.cloud.dialogflow.v2.ArticleAnswer.class,
            com.google.cloud.dialogflow.v2.ArticleAnswer.Builder.class);
  }

  public static final int TITLE_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private volatile java.lang.Object title_ = "";
  /**
   *
   *
   * <pre>
   * The article title.
   * </pre>
   *
   * <code>string title = 1;</code>
   *
   * @return The title.
   */
  @java.lang.Override
  public java.lang.String getTitle() {
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    if (ref instanceof java.lang.String) {
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      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      title_ = s;
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * The article title.
   * </pre>
   *
   * <code>string title = 1;</code>
   *
   * @return The bytes for title.
   */
  @java.lang.Override
  public com.google.protobuf.ByteString getTitleBytes() {
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    if (ref instanceof java.lang.String) {
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      title_ = b;
      return b;
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      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int URI_FIELD_NUMBER = 2;

  @SuppressWarnings("serial")
  private volatile java.lang.Object uri_ = "";
  /**
   *
   *
   * <pre>
   * The article URI.
   * </pre>
   *
   * <code>string uri = 2;</code>
   *
   * @return The uri.
   */
  @java.lang.Override
  public java.lang.String getUri() {
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      java.lang.String s = bs.toStringUtf8();
      uri_ = s;
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  /**
   *
   *
   * <pre>
   * The article URI.
   * </pre>
   *
   * <code>string uri = 2;</code>
   *
   * @return The bytes for uri.
   */
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  public com.google.protobuf.ByteString getUriBytes() {
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    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
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      uri_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int SNIPPETS_FIELD_NUMBER = 3;

  @SuppressWarnings("serial")
  private com.google.protobuf.LazyStringList snippets_;
  /**
   *
   *
   * <pre>
   * Article snippets.
   * </pre>
   *
   * <code>repeated string snippets = 3;</code>
   *
   * @return A list containing the snippets.
   */
  public com.google.protobuf.ProtocolStringList getSnippetsList() {
    return snippets_;
  }
  /**
   *
   *
   * <pre>
   * Article snippets.
   * </pre>
   *
   * <code>repeated string snippets = 3;</code>
   *
   * @return The count of snippets.
   */
  public int getSnippetsCount() {
    return snippets_.size();
  }
  /**
   *
   *
   * <pre>
   * Article snippets.
   * </pre>
   *
   * <code>repeated string snippets = 3;</code>
   *
   * @param index The index of the element to return.
   * @return The snippets at the given index.
   */
  public java.lang.String getSnippets(int index) {
    return snippets_.get(index);
  }
  /**
   *
   *
   * <pre>
   * Article snippets.
   * </pre>
   *
   * <code>repeated string snippets = 3;</code>
   *
   * @param index The index of the value to return.
   * @return The bytes of the snippets at the given index.
   */
  public com.google.protobuf.ByteString getSnippetsBytes(int index) {
    return snippets_.getByteString(index);
  }

  public static final int CONFIDENCE_FIELD_NUMBER = 4;
  private float confidence_ = 0F;
  /**
   *
   *
   * <pre>
   * Article match confidence.
   * The system's confidence score that this article is a good match for this
   * conversation, as a value from 0.0 (completely uncertain) to 1.0
   * (completely certain).
   * </pre>
   *
   * <code>float confidence = 4;</code>
   *
   * @return The confidence.
   */
  @java.lang.Override
  public float getConfidence() {
    return confidence_;
  }

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  private static final class MetadataDefaultEntryHolder {
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                .internal_static_google_cloud_dialogflow_v2_ArticleAnswer_MetadataEntry_descriptor,
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            "");
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  private com.google.protobuf.MapField<java.lang.String, java.lang.String> metadata_;

  private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetMetadata() {
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    return metadata_;
  }

  public int getMetadataCount() {
    return internalGetMetadata().getMap().size();
  }
  /**
   *
   *
   * <pre>
   * A map that contains metadata about the answer and the
   * document from which it originates.
   * </pre>
   *
   * <code>map&lt;string, string&gt; metadata = 5;</code>
   */
  @java.lang.Override
  public boolean containsMetadata(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    return internalGetMetadata().getMap().containsKey(key);
  }
  /** Use {@link #getMetadataMap()} instead. */
  @java.lang.Override
  @java.lang.Deprecated
  public java.util.Map<java.lang.String, java.lang.String> getMetadata() {
    return getMetadataMap();
  }
  /**
   *
   *
   * <pre>
   * A map that contains metadata about the answer and the
   * document from which it originates.
   * </pre>
   *
   * <code>map&lt;string, string&gt; metadata = 5;</code>
   */
  @java.lang.Override
  public java.util.Map<java.lang.String, java.lang.String> getMetadataMap() {
    return internalGetMetadata().getMap();
  }
  /**
   *
   *
   * <pre>
   * A map that contains metadata about the answer and the
   * document from which it originates.
   * </pre>
   *
   * <code>map&lt;string, string&gt; metadata = 5;</code>
   */
  @java.lang.Override
  public /* nullable */ java.lang.String getMetadataOrDefault(
      java.lang.String key,
      /* nullable */
      java.lang.String defaultValue) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetMetadata().getMap();
    return map.containsKey(key) ? map.get(key) : defaultValue;
  }
  /**
   *
   *
   * <pre>
   * A map that contains metadata about the answer and the
   * document from which it originates.
   * </pre>
   *
   * <code>map&lt;string, string&gt; metadata = 5;</code>
   */
  @java.lang.Override
  public java.lang.String getMetadataOrThrow(java.lang.String key) {
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      throw new NullPointerException("map key");
    }
    java.util.Map<java.lang.String, java.lang.String> map = internalGetMetadata().getMap();
    if (!map.containsKey(key)) {
      throw new java.lang.IllegalArgumentException();
    }
    return map.get(key);
  }

  public static final int ANSWER_RECORD_FIELD_NUMBER = 6;

  @SuppressWarnings("serial")
  private volatile java.lang.Object answerRecord_ = "";
  /**
   *
   *
   * <pre>
   * The name of answer record, in the format of
   * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
   * ID&gt;"
   * </pre>
   *
   * <code>string answer_record = 6;</code>
   *
   * @return The answerRecord.
   */
  @java.lang.Override
  public java.lang.String getAnswerRecord() {
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      java.lang.String s = bs.toStringUtf8();
      answerRecord_ = s;
      return s;
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   *
   *
   * <pre>
   * The name of answer record, in the format of
   * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
   * ID&gt;"
   * </pre>
   *
   * <code>string answer_record = 6;</code>
   *
   * @return The bytes for answerRecord.
   */
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    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
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  @java.lang.Override
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      return true;
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      return super.equals(obj);
    }
    com.google.cloud.dialogflow.v2.ArticleAnswer other =
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    if (!getTitle().equals(other.getTitle())) return false;
    if (!getUri().equals(other.getUri())) return false;
    if (!getSnippetsList().equals(other.getSnippetsList())) return false;
    if (java.lang.Float.floatToIntBits(getConfidence())
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    if (!internalGetMetadata().equals(other.internalGetMetadata())) return false;
    if (!getAnswerRecord().equals(other.getAnswerRecord())) return false;
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
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      return memoizedHashCode;
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    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + TITLE_FIELD_NUMBER;
    hash = (53 * hash) + getTitle().hashCode();
    hash = (37 * hash) + URI_FIELD_NUMBER;
    hash = (53 * hash) + getUri().hashCode();
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  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(java.nio.ByteBuffer data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
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  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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    return PARSER.parseFrom(data, extensionRegistry);
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  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(byte[] data)
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    return PARSER.parseFrom(data);
  }

  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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    return PARSER.parseFrom(data, extensionRegistry);
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  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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  public static com.google.cloud.dialogflow.v2.ArticleAnswer parseFrom(
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  public Builder newBuilderForType() {
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  /**
   *
   *
   * <pre>
   * Represents article answer.
   * </pre>
   *
   * Protobuf type {@code google.cloud.dialogflow.v2.ArticleAnswer}
   */
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      uri_ = "";
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      if (((from_bitField0_ & 0x00000010) != 0)) {
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        result.metadata_.makeImmutable();
      }
      if (((from_bitField0_ & 0x00000020) != 0)) {
        result.answerRecord_ = answerRecord_;
      }
    }

    @java.lang.Override
    public Builder clone() {
      return super.clone();
    }

    @java.lang.Override
    public Builder setField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.setField(field, value);
    }

    @java.lang.Override
    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
      return super.clearField(field);
    }

    @java.lang.Override
    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
      return super.clearOneof(oneof);
    }

    @java.lang.Override
    public Builder setRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
      return super.setRepeatedField(field, index, value);
    }

    @java.lang.Override
    public Builder addRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.addRepeatedField(field, value);
    }

    @java.lang.Override
    public Builder mergeFrom(com.google.protobuf.Message other) {
      if (other instanceof com.google.cloud.dialogflow.v2.ArticleAnswer) {
        return mergeFrom((com.google.cloud.dialogflow.v2.ArticleAnswer) other);
      } else {
        super.mergeFrom(other);
        return this;
      }
    }

    public Builder mergeFrom(com.google.cloud.dialogflow.v2.ArticleAnswer other) {
      if (other == com.google.cloud.dialogflow.v2.ArticleAnswer.getDefaultInstance()) return this;
      if (!other.getTitle().isEmpty()) {
        title_ = other.title_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      if (!other.getUri().isEmpty()) {
        uri_ = other.uri_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      if (!other.snippets_.isEmpty()) {
        if (snippets_.isEmpty()) {
          snippets_ = other.snippets_;
          bitField0_ = (bitField0_ & ~0x00000004);
        } else {
          ensureSnippetsIsMutable();
          snippets_.addAll(other.snippets_);
        }
        onChanged();
      }
      if (other.getConfidence() != 0F) {
        setConfidence(other.getConfidence());
      }
      internalGetMutableMetadata().mergeFrom(other.internalGetMetadata());
      bitField0_ |= 0x00000010;
      if (!other.getAnswerRecord().isEmpty()) {
        answerRecord_ = other.answerRecord_;
        bitField0_ |= 0x00000020;
        onChanged();
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }

    @java.lang.Override
    public final boolean isInitialized() {
      return true;
    }

    @java.lang.Override
    public Builder mergeFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      if (extensionRegistry == null) {
        throw new java.lang.NullPointerException();
      }
      try {
        boolean done = false;
        while (!done) {
          int tag = input.readTag();
          switch (tag) {
            case 0:
              done = true;
              break;
            case 10:
              {
                title_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000001;
                break;
              } // case 10
            case 18:
              {
                uri_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000002;
                break;
              } // case 18
            case 26:
              {
                java.lang.String s = input.readStringRequireUtf8();
                ensureSnippetsIsMutable();
                snippets_.add(s);
                break;
              } // case 26
            case 37:
              {
                confidence_ = input.readFloat();
                bitField0_ |= 0x00000008;
                break;
              } // case 37
            case 42:
              {
                com.google.protobuf.MapEntry<java.lang.String, java.lang.String> metadata__ =
                    input.readMessage(
                        MetadataDefaultEntryHolder.defaultEntry.getParserForType(),
                        extensionRegistry);
                internalGetMutableMetadata()
                    .getMutableMap()
                    .put(metadata__.getKey(), metadata__.getValue());
                bitField0_ |= 0x00000010;
                break;
              } // case 42
            case 50:
              {
                answerRecord_ = input.readStringRequireUtf8();
                bitField0_ |= 0x00000020;
                break;
              } // case 50
            default:
              {
                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
                  done = true; // was an endgroup tag
                }
                break;
              } // default:
          } // switch (tag)
        } // while (!done)
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.unwrapIOException();
      } finally {
        onChanged();
      } // finally
      return this;
    }

    private int bitField0_;

    private java.lang.Object title_ = "";
    /**
     *
     *
     * <pre>
     * The article title.
     * </pre>
     *
     * <code>string title = 1;</code>
     *
     * @return The title.
     */
    public java.lang.String getTitle() {
      java.lang.Object ref = title_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        title_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The article title.
     * </pre>
     *
     * <code>string title = 1;</code>
     *
     * @return The bytes for title.
     */
    public com.google.protobuf.ByteString getTitleBytes() {
      java.lang.Object ref = title_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        title_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The article title.
     * </pre>
     *
     * <code>string title = 1;</code>
     *
     * @param value The title to set.
     * @return This builder for chaining.
     */
    public Builder setTitle(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      title_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The article title.
     * </pre>
     *
     * <code>string title = 1;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearTitle() {
      title_ = getDefaultInstance().getTitle();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The article title.
     * </pre>
     *
     * <code>string title = 1;</code>
     *
     * @param value The bytes for title to set.
     * @return This builder for chaining.
     */
    public Builder setTitleBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      title_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    private java.lang.Object uri_ = "";
    /**
     *
     *
     * <pre>
     * The article URI.
     * </pre>
     *
     * <code>string uri = 2;</code>
     *
     * @return The uri.
     */
    public java.lang.String getUri() {
      java.lang.Object ref = uri_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        uri_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The article URI.
     * </pre>
     *
     * <code>string uri = 2;</code>
     *
     * @return The bytes for uri.
     */
    public com.google.protobuf.ByteString getUriBytes() {
      java.lang.Object ref = uri_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        uri_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The article URI.
     * </pre>
     *
     * <code>string uri = 2;</code>
     *
     * @param value The uri to set.
     * @return This builder for chaining.
     */
    public Builder setUri(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      uri_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The article URI.
     * </pre>
     *
     * <code>string uri = 2;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearUri() {
      uri_ = getDefaultInstance().getUri();
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The article URI.
     * </pre>
     *
     * <code>string uri = 2;</code>
     *
     * @param value The bytes for uri to set.
     * @return This builder for chaining.
     */
    public Builder setUriBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      uri_ = value;
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }

    private com.google.protobuf.LazyStringList snippets_ =
        com.google.protobuf.LazyStringArrayList.EMPTY;

    private void ensureSnippetsIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        snippets_ = new com.google.protobuf.LazyStringArrayList(snippets_);
        bitField0_ |= 0x00000004;
      }
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @return A list containing the snippets.
     */
    public com.google.protobuf.ProtocolStringList getSnippetsList() {
      return snippets_.getUnmodifiableView();
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @return The count of snippets.
     */
    public int getSnippetsCount() {
      return snippets_.size();
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param index The index of the element to return.
     * @return The snippets at the given index.
     */
    public java.lang.String getSnippets(int index) {
      return snippets_.get(index);
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param index The index of the value to return.
     * @return The bytes of the snippets at the given index.
     */
    public com.google.protobuf.ByteString getSnippetsBytes(int index) {
      return snippets_.getByteString(index);
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param index The index to set the value at.
     * @param value The snippets to set.
     * @return This builder for chaining.
     */
    public Builder setSnippets(int index, java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureSnippetsIsMutable();
      snippets_.set(index, value);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param value The snippets to add.
     * @return This builder for chaining.
     */
    public Builder addSnippets(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureSnippetsIsMutable();
      snippets_.add(value);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param values The snippets to add.
     * @return This builder for chaining.
     */
    public Builder addAllSnippets(java.lang.Iterable<java.lang.String> values) {
      ensureSnippetsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, snippets_);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearSnippets() {
      snippets_ = com.google.protobuf.LazyStringArrayList.EMPTY;
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Article snippets.
     * </pre>
     *
     * <code>repeated string snippets = 3;</code>
     *
     * @param value The bytes of the snippets to add.
     * @return This builder for chaining.
     */
    public Builder addSnippetsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureSnippetsIsMutable();
      snippets_.add(value);
      onChanged();
      return this;
    }

    private float confidence_;
    /**
     *
     *
     * <pre>
     * Article match confidence.
     * The system's confidence score that this article is a good match for this
     * conversation, as a value from 0.0 (completely uncertain) to 1.0
     * (completely certain).
     * </pre>
     *
     * <code>float confidence = 4;</code>
     *
     * @return The confidence.
     */
    @java.lang.Override
    public float getConfidence() {
      return confidence_;
    }
    /**
     *
     *
     * <pre>
     * Article match confidence.
     * The system's confidence score that this article is a good match for this
     * conversation, as a value from 0.0 (completely uncertain) to 1.0
     * (completely certain).
     * </pre>
     *
     * <code>float confidence = 4;</code>
     *
     * @param value The confidence to set.
     * @return This builder for chaining.
     */
    public Builder setConfidence(float value) {

      confidence_ = value;
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Article match confidence.
     * The system's confidence score that this article is a good match for this
     * conversation, as a value from 0.0 (completely uncertain) to 1.0
     * (completely certain).
     * </pre>
     *
     * <code>float confidence = 4;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearConfidence() {
      bitField0_ = (bitField0_ & ~0x00000008);
      confidence_ = 0F;
      onChanged();
      return this;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> metadata_;

    private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetMetadata() {
      if (metadata_ == null) {
        return com.google.protobuf.MapField.emptyMapField(MetadataDefaultEntryHolder.defaultEntry);
      }
      return metadata_;
    }

    private com.google.protobuf.MapField<java.lang.String, java.lang.String>
        internalGetMutableMetadata() {
      if (metadata_ == null) {
        metadata_ =
            com.google.protobuf.MapField.newMapField(MetadataDefaultEntryHolder.defaultEntry);
      }
      if (!metadata_.isMutable()) {
        metadata_ = metadata_.copy();
      }
      bitField0_ |= 0x00000010;
      onChanged();
      return metadata_;
    }

    public int getMetadataCount() {
      return internalGetMetadata().getMap().size();
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    @java.lang.Override
    public boolean containsMetadata(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      return internalGetMetadata().getMap().containsKey(key);
    }
    /** Use {@link #getMetadataMap()} instead. */
    @java.lang.Override
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getMetadata() {
      return getMetadataMap();
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    @java.lang.Override
    public java.util.Map<java.lang.String, java.lang.String> getMetadataMap() {
      return internalGetMetadata().getMap();
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    @java.lang.Override
    public /* nullable */ java.lang.String getMetadataOrDefault(
        java.lang.String key,
        /* nullable */
        java.lang.String defaultValue) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetMetadata().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    @java.lang.Override
    public java.lang.String getMetadataOrThrow(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map = internalGetMetadata().getMap();
      if (!map.containsKey(key)) {
        throw new java.lang.IllegalArgumentException();
      }
      return map.get(key);
    }

    public Builder clearMetadata() {
      bitField0_ = (bitField0_ & ~0x00000010);
      internalGetMutableMetadata().getMutableMap().clear();
      return this;
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    public Builder removeMetadata(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      internalGetMutableMetadata().getMutableMap().remove(key);
      return this;
    }
    /** Use alternate mutation accessors instead. */
    @java.lang.Deprecated
    public java.util.Map<java.lang.String, java.lang.String> getMutableMetadata() {
      bitField0_ |= 0x00000010;
      return internalGetMutableMetadata().getMutableMap();
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    public Builder putMetadata(java.lang.String key, java.lang.String value) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      if (value == null) {
        throw new NullPointerException("map value");
      }
      internalGetMutableMetadata().getMutableMap().put(key, value);
      bitField0_ |= 0x00000010;
      return this;
    }
    /**
     *
     *
     * <pre>
     * A map that contains metadata about the answer and the
     * document from which it originates.
     * </pre>
     *
     * <code>map&lt;string, string&gt; metadata = 5;</code>
     */
    public Builder putAllMetadata(java.util.Map<java.lang.String, java.lang.String> values) {
      internalGetMutableMetadata().getMutableMap().putAll(values);
      bitField0_ |= 0x00000010;
      return this;
    }

    private java.lang.Object answerRecord_ = "";
    /**
     *
     *
     * <pre>
     * The name of answer record, in the format of
     * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
     * ID&gt;"
     * </pre>
     *
     * <code>string answer_record = 6;</code>
     *
     * @return The answerRecord.
     */
    public java.lang.String getAnswerRecord() {
      java.lang.Object ref = answerRecord_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        answerRecord_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The name of answer record, in the format of
     * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
     * ID&gt;"
     * </pre>
     *
     * <code>string answer_record = 6;</code>
     *
     * @return The bytes for answerRecord.
     */
    public com.google.protobuf.ByteString getAnswerRecordBytes() {
      java.lang.Object ref = answerRecord_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        answerRecord_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The name of answer record, in the format of
     * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
     * ID&gt;"
     * </pre>
     *
     * <code>string answer_record = 6;</code>
     *
     * @param value The answerRecord to set.
     * @return This builder for chaining.
     */
    public Builder setAnswerRecord(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      answerRecord_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The name of answer record, in the format of
     * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
     * ID&gt;"
     * </pre>
     *
     * <code>string answer_record = 6;</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearAnswerRecord() {
      answerRecord_ = getDefaultInstance().getAnswerRecord();
      bitField0_ = (bitField0_ & ~0x00000020);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The name of answer record, in the format of
     * "projects/&lt;Project ID&gt;/locations/&lt;Location ID&gt;/answerRecords/&lt;Answer Record
     * ID&gt;"
     * </pre>
     *
     * <code>string answer_record = 6;</code>
     *
     * @param value The bytes for answerRecord to set.
     * @return This builder for chaining.
     */
    public Builder setAnswerRecordBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      answerRecord_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }

    @java.lang.Override
    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.setUnknownFields(unknownFields);
    }

    @java.lang.Override
    public final Builder mergeUnknownFields(
        final com.google.protobuf.UnknownFieldSet unknownFields) {
      return super.mergeUnknownFields(unknownFields);
    }

    // @@protoc_insertion_point(builder_scope:google.cloud.dialogflow.v2.ArticleAnswer)
  }

  // @@protoc_insertion_point(class_scope:google.cloud.dialogflow.v2.ArticleAnswer)
  private static final com.google.cloud.dialogflow.v2.ArticleAnswer DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.cloud.dialogflow.v2.ArticleAnswer();
  }

  public static com.google.cloud.dialogflow.v2.ArticleAnswer getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<ArticleAnswer> PARSER =
      new com.google.protobuf.AbstractParser<ArticleAnswer>() {
        @java.lang.Override
        public ArticleAnswer parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

  public static com.google.protobuf.Parser<ArticleAnswer> parser() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.Parser<ArticleAnswer> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.cloud.dialogflow.v2.ArticleAnswer getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}