io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules Maven / Gradle / Ivy

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// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: envoy/config/common/mutation_rules/v3/mutation_rules.proto

package io.envoyproxy.envoy.config.common.mutation_rules.v3;

/**
 *  * The HeaderMutationRules structure specifies what headers may be
 * manipulated by a processing filter. This set of rules makes it
 * possible to control which modifications a filter may make.
 * By default, an external processing server may add, modify, or remove
 * any header except for an "Envoy internal" header (which is typically
 * denoted by an x-envoy prefix) or specific headers that may affect
 * further filter processing:
 * * ``host``
 * * ``:authority``
 * * ``:scheme``
 * * ``:method``
 * Every attempt to add, change, append, or remove a header will be
 * tested against the rules here. Disallowed header mutations will be
 * ignored unless ``disallow_is_error`` is set to true.
 * Attempts to remove headers are further constrained -- regardless of the
 * settings, system-defined headers (that start with ``:``) and the ``host``
 * header may never be removed.
 * In addition, a counter will be incremented whenever a mutation is
 * rejected. In the ext_proc filter, that counter is named
 * ``rejected_header_mutations``.
 * [#next-free-field: 8]
 * 
 *
 * Protobuf type {@code envoy.config.common.mutation_rules.v3.HeaderMutationRules}
 */
public final class HeaderMutationRules extends
    com.google.protobuf.GeneratedMessageV3 implements
    // @@protoc_insertion_point(message_implements:envoy.config.common.mutation_rules.v3.HeaderMutationRules)
    HeaderMutationRulesOrBuilder {
private static final long serialVersionUID = 0L;
  // Use HeaderMutationRules.newBuilder() to construct.
  private HeaderMutationRules(com.google.protobuf.GeneratedMessageV3.Builder builder) {
    super(builder);
  }
  private HeaderMutationRules() {
  }

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

  @java.lang.Override
  public final com.google.protobuf.UnknownFieldSet
  getUnknownFields() {
    return this.unknownFields;
  }
  private HeaderMutationRules(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    this();
    if (extensionRegistry == null) {
      throw new java.lang.NullPointerException();
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          case 10: {
            com.google.protobuf.BoolValue.Builder subBuilder = null;
            if (allowAllRouting_ != null) {
              subBuilder = allowAllRouting_.toBuilder();
            }
            allowAllRouting_ = input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
            if (subBuilder != null) {
              subBuilder.mergeFrom(allowAllRouting_);
              allowAllRouting_ = subBuilder.buildPartial();
            }

            break;
          }
          case 18: {
            com.google.protobuf.BoolValue.Builder subBuilder = null;
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              subBuilder.mergeFrom(allowEnvoy_);
              allowEnvoy_ = subBuilder.buildPartial();
            }

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          }
          case 26: {
            com.google.protobuf.BoolValue.Builder subBuilder = null;
            if (disallowSystem_ != null) {
              subBuilder = disallowSystem_.toBuilder();
            }
            disallowSystem_ = input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
            if (subBuilder != null) {
              subBuilder.mergeFrom(disallowSystem_);
              disallowSystem_ = subBuilder.buildPartial();
            }

            break;
          }
          case 34: {
            com.google.protobuf.BoolValue.Builder subBuilder = null;
            if (disallowAll_ != null) {
              subBuilder = disallowAll_.toBuilder();
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            if (subBuilder != null) {
              subBuilder.mergeFrom(disallowAll_);
              disallowAll_ = subBuilder.buildPartial();
            }

            break;
          }
          case 42: {
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder subBuilder = null;
            if (allowExpression_ != null) {
              subBuilder = allowExpression_.toBuilder();
            }
            allowExpression_ = input.readMessage(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.parser(), extensionRegistry);
            if (subBuilder != null) {
              subBuilder.mergeFrom(allowExpression_);
              allowExpression_ = subBuilder.buildPartial();
            }

            break;
          }
          case 50: {
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder subBuilder = null;
            if (disallowExpression_ != null) {
              subBuilder = disallowExpression_.toBuilder();
            }
            disallowExpression_ = input.readMessage(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.parser(), extensionRegistry);
            if (subBuilder != null) {
              subBuilder.mergeFrom(disallowExpression_);
              disallowExpression_ = subBuilder.buildPartial();
            }

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          case 58: {
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            if (subBuilder != null) {
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              disallowIsError_ = subBuilder.buildPartial();
            }

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      this.unknownFields = unknownFields.build();
      makeExtensionsImmutable();
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  }
  public static final com.google.protobuf.Descriptors.Descriptor
      getDescriptor() {
    return io.envoyproxy.envoy.config.common.mutation_rules.v3.MutationRulesProto.internal_static_envoy_config_common_mutation_rules_v3_HeaderMutationRules_descriptor;
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internalGetFieldAccessorTable() {
    return io.envoyproxy.envoy.config.common.mutation_rules.v3.MutationRulesProto.internal_static_envoy_config_common_mutation_rules_v3_HeaderMutationRules_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules.class, io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules.Builder.class);
  }

  public static final int ALLOW_ALL_ROUTING_FIELD_NUMBER = 1;
  private com.google.protobuf.BoolValue allowAllRouting_;
  /**
   *    * By default, certain headers that could affect processing of subsequent
   * filters or request routing cannot be modified. These headers are
   * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
   * to true allows these headers to be modified as well.
   * 
   *
   * .google.protobuf.BoolValue allow_all_routing = 1;
   * @return Whether the allowAllRouting field is set.
   */
  @java.lang.Override
  public boolean hasAllowAllRouting() {
    return allowAllRouting_ != null;
  }
  /**
   *    * By default, certain headers that could affect processing of subsequent
   * filters or request routing cannot be modified. These headers are
   * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
   * to true allows these headers to be modified as well.
   * 
   *
   * .google.protobuf.BoolValue allow_all_routing = 1;
   * @return The allowAllRouting.
   */
  @java.lang.Override
  public com.google.protobuf.BoolValue getAllowAllRouting() {
    return allowAllRouting_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : allowAllRouting_;
  }
  /**
   *    * By default, certain headers that could affect processing of subsequent
   * filters or request routing cannot be modified. These headers are
   * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
   * to true allows these headers to be modified as well.
   * 
   *
   * .google.protobuf.BoolValue allow_all_routing = 1;
   */
  @java.lang.Override
  public com.google.protobuf.BoolValueOrBuilder getAllowAllRoutingOrBuilder() {
    return getAllowAllRouting();
  }

  public static final int ALLOW_ENVOY_FIELD_NUMBER = 2;
  private com.google.protobuf.BoolValue allowEnvoy_;
  /**
   *    * If true, allow modification of envoy internal headers. By default, these
   * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
   * configuration using the
   * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
   * field. Default is false.
   * 
   *
   * .google.protobuf.BoolValue allow_envoy = 2;
   * @return Whether the allowEnvoy field is set.
   */
  @java.lang.Override
  public boolean hasAllowEnvoy() {
    return allowEnvoy_ != null;
  }
  /**
   *    * If true, allow modification of envoy internal headers. By default, these
   * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
   * configuration using the
   * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
   * field. Default is false.
   * 
   *
   * .google.protobuf.BoolValue allow_envoy = 2;
   * @return The allowEnvoy.
   */
  @java.lang.Override
  public com.google.protobuf.BoolValue getAllowEnvoy() {
    return allowEnvoy_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : allowEnvoy_;
  }
  /**
   *    * If true, allow modification of envoy internal headers. By default, these
   * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
   * configuration using the
   * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
   * field. Default is false.
   * 
   *
   * .google.protobuf.BoolValue allow_envoy = 2;
   */
  @java.lang.Override
  public com.google.protobuf.BoolValueOrBuilder getAllowEnvoyOrBuilder() {
    return getAllowEnvoy();
  }

  public static final int DISALLOW_SYSTEM_FIELD_NUMBER = 3;
  private com.google.protobuf.BoolValue disallowSystem_;
  /**
   *    * If true, prevent modification of any system header, defined as a header
   * that starts with a ``:`` character, regardless of any other settings.
   * A processing server may still override the ``:status`` of an HTTP response
   * using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_system = 3;
   * @return Whether the disallowSystem field is set.
   */
  @java.lang.Override
  public boolean hasDisallowSystem() {
    return disallowSystem_ != null;
  }
  /**
   *    * If true, prevent modification of any system header, defined as a header
   * that starts with a ``:`` character, regardless of any other settings.
   * A processing server may still override the ``:status`` of an HTTP response
   * using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_system = 3;
   * @return The disallowSystem.
   */
  @java.lang.Override
  public com.google.protobuf.BoolValue getDisallowSystem() {
    return disallowSystem_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowSystem_;
  }
  /**
   *    * If true, prevent modification of any system header, defined as a header
   * that starts with a ``:`` character, regardless of any other settings.
   * A processing server may still override the ``:status`` of an HTTP response
   * using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_system = 3;
   */
  @java.lang.Override
  public com.google.protobuf.BoolValueOrBuilder getDisallowSystemOrBuilder() {
    return getDisallowSystem();
  }

  public static final int DISALLOW_ALL_FIELD_NUMBER = 4;
  private com.google.protobuf.BoolValue disallowAll_;
  /**
   *    * If true, prevent modifications of all header values, regardless of any
   * other settings. A processing server may still override the ``:status``
   * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_all = 4;
   * @return Whether the disallowAll field is set.
   */
  @java.lang.Override
  public boolean hasDisallowAll() {
    return disallowAll_ != null;
  }
  /**
   *    * If true, prevent modifications of all header values, regardless of any
   * other settings. A processing server may still override the ``:status``
   * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_all = 4;
   * @return The disallowAll.
   */
  @java.lang.Override
  public com.google.protobuf.BoolValue getDisallowAll() {
    return disallowAll_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowAll_;
  }
  /**
   *    * If true, prevent modifications of all header values, regardless of any
   * other settings. A processing server may still override the ``:status``
   * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_all = 4;
   */
  @java.lang.Override
  public com.google.protobuf.BoolValueOrBuilder getDisallowAllOrBuilder() {
    return getDisallowAll();
  }

  public static final int ALLOW_EXPRESSION_FIELD_NUMBER = 5;
  private io.envoyproxy.envoy.type.matcher.v3.RegexMatcher allowExpression_;
  /**
   *    * If set, specifically allow any header that matches this regular
   * expression. This overrides all other settings except for
   * ``disallow_expression``.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
   * @return Whether the allowExpression field is set.
   */
  @java.lang.Override
  public boolean hasAllowExpression() {
    return allowExpression_ != null;
  }
  /**
   *    * If set, specifically allow any header that matches this regular
   * expression. This overrides all other settings except for
   * ``disallow_expression``.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
   * @return The allowExpression.
   */
  @java.lang.Override
  public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher getAllowExpression() {
    return allowExpression_ == null ? io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : allowExpression_;
  }
  /**
   *    * If set, specifically allow any header that matches this regular
   * expression. This overrides all other settings except for
   * ``disallow_expression``.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
   */
  @java.lang.Override
  public io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder getAllowExpressionOrBuilder() {
    return getAllowExpression();
  }

  public static final int DISALLOW_EXPRESSION_FIELD_NUMBER = 6;
  private io.envoyproxy.envoy.type.matcher.v3.RegexMatcher disallowExpression_;
  /**
   *    * If set, specifically disallow any header that matches this regular
   * expression regardless of any other settings.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
   * @return Whether the disallowExpression field is set.
   */
  @java.lang.Override
  public boolean hasDisallowExpression() {
    return disallowExpression_ != null;
  }
  /**
   *    * If set, specifically disallow any header that matches this regular
   * expression regardless of any other settings.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
   * @return The disallowExpression.
   */
  @java.lang.Override
  public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher getDisallowExpression() {
    return disallowExpression_ == null ? io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : disallowExpression_;
  }
  /**
   *    * If set, specifically disallow any header that matches this regular
   * expression regardless of any other settings.
   * 
   *
   * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
   */
  @java.lang.Override
  public io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder getDisallowExpressionOrBuilder() {
    return getDisallowExpression();
  }

  public static final int DISALLOW_IS_ERROR_FIELD_NUMBER = 7;
  private com.google.protobuf.BoolValue disallowIsError_;
  /**
   *    * If true, and if the rules in this list cause a header mutation to be
   * disallowed, then the filter using this configuration will terminate the
   * request with a 500 error. In addition, regardless of the setting of this
   * parameter, any attempt to set, add, or modify a disallowed header will
   * cause the ``rejected_header_mutations`` counter to be incremented.
   * Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_is_error = 7;
   * @return Whether the disallowIsError field is set.
   */
  @java.lang.Override
  public boolean hasDisallowIsError() {
    return disallowIsError_ != null;
  }
  /**
   *    * If true, and if the rules in this list cause a header mutation to be
   * disallowed, then the filter using this configuration will terminate the
   * request with a 500 error. In addition, regardless of the setting of this
   * parameter, any attempt to set, add, or modify a disallowed header will
   * cause the ``rejected_header_mutations`` counter to be incremented.
   * Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_is_error = 7;
   * @return The disallowIsError.
   */
  @java.lang.Override
  public com.google.protobuf.BoolValue getDisallowIsError() {
    return disallowIsError_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowIsError_;
  }
  /**
   *    * If true, and if the rules in this list cause a header mutation to be
   * disallowed, then the filter using this configuration will terminate the
   * request with a 500 error. In addition, regardless of the setting of this
   * parameter, any attempt to set, add, or modify a disallowed header will
   * cause the ``rejected_header_mutations`` counter to be incremented.
   * Default is false.
   * 
   *
   * .google.protobuf.BoolValue disallow_is_error = 7;
   */
  @java.lang.Override
  public com.google.protobuf.BoolValueOrBuilder getDisallowIsErrorOrBuilder() {
    return getDisallowIsError();
  }

  private byte memoizedIsInitialized = -1;
  @java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }

  @java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output)
                      throws java.io.IOException {
    if (allowAllRouting_ != null) {
      output.writeMessage(1, getAllowAllRouting());
    }
    if (allowEnvoy_ != null) {
      output.writeMessage(2, getAllowEnvoy());
    }
    if (disallowSystem_ != null) {
      output.writeMessage(3, getDisallowSystem());
    }
    if (disallowAll_ != null) {
      output.writeMessage(4, getDisallowAll());
    }
    if (allowExpression_ != null) {
      output.writeMessage(5, getAllowExpression());
    }
    if (disallowExpression_ != null) {
      output.writeMessage(6, getDisallowExpression());
    }
    if (disallowIsError_ != null) {
      output.writeMessage(7, getDisallowIsError());
    }
    unknownFields.writeTo(output);
  }

  @java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (allowAllRouting_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(1, getAllowAllRouting());
    }
    if (allowEnvoy_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(2, getAllowEnvoy());
    }
    if (disallowSystem_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(3, getDisallowSystem());
    }
    if (disallowAll_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(4, getDisallowAll());
    }
    if (allowExpression_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(5, getAllowExpression());
    }
    if (disallowExpression_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(6, getDisallowExpression());
    }
    if (disallowIsError_ != null) {
      size += com.google.protobuf.CodedOutputStream
        .computeMessageSize(7, getDisallowIsError());
    }
    size += unknownFields.getSerializedSize();
    memoizedSize = size;
    return size;
  }

  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
     return true;
    }
    if (!(obj instanceof io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules)) {
      return super.equals(obj);
    }
    io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules other = (io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules) obj;

    if (hasAllowAllRouting() != other.hasAllowAllRouting()) return false;
    if (hasAllowAllRouting()) {
      if (!getAllowAllRouting()
          .equals(other.getAllowAllRouting())) return false;
    }
    if (hasAllowEnvoy() != other.hasAllowEnvoy()) return false;
    if (hasAllowEnvoy()) {
      if (!getAllowEnvoy()
          .equals(other.getAllowEnvoy())) return false;
    }
    if (hasDisallowSystem() != other.hasDisallowSystem()) return false;
    if (hasDisallowSystem()) {
      if (!getDisallowSystem()
          .equals(other.getDisallowSystem())) return false;
    }
    if (hasDisallowAll() != other.hasDisallowAll()) return false;
    if (hasDisallowAll()) {
      if (!getDisallowAll()
          .equals(other.getDisallowAll())) return false;
    }
    if (hasAllowExpression() != other.hasAllowExpression()) return false;
    if (hasAllowExpression()) {
      if (!getAllowExpression()
          .equals(other.getAllowExpression())) return false;
    }
    if (hasDisallowExpression() != other.hasDisallowExpression()) return false;
    if (hasDisallowExpression()) {
      if (!getDisallowExpression()
          .equals(other.getDisallowExpression())) return false;
    }
    if (hasDisallowIsError() != other.hasDisallowIsError()) return false;
    if (hasDisallowIsError()) {
      if (!getDisallowIsError()
          .equals(other.getDisallowIsError())) return false;
    }
    if (!unknownFields.equals(other.unknownFields)) return false;
    return true;
  }

  @java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (hasAllowAllRouting()) {
      hash = (37 * hash) + ALLOW_ALL_ROUTING_FIELD_NUMBER;
      hash = (53 * hash) + getAllowAllRouting().hashCode();
    }
    if (hasAllowEnvoy()) {
      hash = (37 * hash) + ALLOW_ENVOY_FIELD_NUMBER;
      hash = (53 * hash) + getAllowEnvoy().hashCode();
    }
    if (hasDisallowSystem()) {
      hash = (37 * hash) + DISALLOW_SYSTEM_FIELD_NUMBER;
      hash = (53 * hash) + getDisallowSystem().hashCode();
    }
    if (hasDisallowAll()) {
      hash = (37 * hash) + DISALLOW_ALL_FIELD_NUMBER;
      hash = (53 * hash) + getDisallowAll().hashCode();
    }
    if (hasAllowExpression()) {
      hash = (37 * hash) + ALLOW_EXPRESSION_FIELD_NUMBER;
      hash = (53 * hash) + getAllowExpression().hashCode();
    }
    if (hasDisallowExpression()) {
      hash = (37 * hash) + DISALLOW_EXPRESSION_FIELD_NUMBER;
      hash = (53 * hash) + getDisallowExpression().hashCode();
    }
    if (hasDisallowIsError()) {
      hash = (37 * hash) + DISALLOW_IS_ERROR_FIELD_NUMBER;
      hash = (53 * hash) + getDisallowIsError().hashCode();
    }
    hash = (29 * hash) + unknownFields.hashCode();
    memoizedHashCode = hash;
    return hash;
  }

  public static io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules parseFrom(
      java.nio.ByteBuffer data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }
  public static io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules parseFrom(
      java.nio.ByteBuffer data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }
  public static io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules parseFrom(
      com.google.protobuf.ByteString data)
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  /**
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   * possible to control which modifications a filter may make.
   * By default, an external processing server may add, modify, or remove
   * any header except for an "Envoy internal" header (which is typically
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   * * ``:authority``
   * * ``:scheme``
   * * ``:method``
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   * In addition, a counter will be incremented whenever a mutation is
   * rejected. In the ext_proc filter, that counter is named
   * ``rejected_header_mutations``.
   * [#next-free-field: 8]
   * 
   *
   * Protobuf type {@code envoy.config.common.mutation_rules.v3.HeaderMutationRules}
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    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
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     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     * @return The allowAllRouting.
     */
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    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     */
    public Builder setAllowAllRouting(com.google.protobuf.BoolValue value) {
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          throw new NullPointerException();
        }
        allowAllRouting_ = value;
        onChanged();
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        allowAllRoutingBuilder_.setMessage(value);
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      return this;
    }
    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     */
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      return this;
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    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     */
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      return this;
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    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     */
    public Builder clearAllowAllRouting() {
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        onChanged();
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        allowAllRouting_ = null;
        allowAllRoutingBuilder_ = null;
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      return this;
    }
    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
     */
    public com.google.protobuf.BoolValue.Builder getAllowAllRoutingBuilder() {
      
      onChanged();
      return getAllowAllRoutingFieldBuilder().getBuilder();
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    /**
     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
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     *      * By default, certain headers that could affect processing of subsequent
     * filters or request routing cannot be modified. These headers are
     * ``host``, ``:authority``, ``:scheme``, and ``:method``. Setting this parameter
     * to true allows these headers to be modified as well.
     * 
     *
     * .google.protobuf.BoolValue allow_all_routing = 1;
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     *      * If true, allow modification of envoy internal headers. By default, these
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     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
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     * 
     *
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     * @return Whether the allowEnvoy field is set.
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     *      * If true, allow modification of envoy internal headers. By default, these
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     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     * @return The allowEnvoy.
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    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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      if (allowEnvoyBuilder_ == null) {
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          throw new NullPointerException();
        }
        allowEnvoy_ = value;
        onChanged();
      } else {
        allowEnvoyBuilder_.setMessage(value);
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      return this;
    }
    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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        allowEnvoy_ = builderForValue.build();
        onChanged();
      } else {
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      return this;
    }
    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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        onChanged();
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        allowEnvoyBuilder_ = null;
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    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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      onChanged();
      return getAllowEnvoyFieldBuilder().getBuilder();
    }
    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
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        return allowEnvoyBuilder_.getMessageOrBuilder();
      } else {
        return allowEnvoy_ == null ?
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    /**
     *      * If true, allow modification of envoy internal headers. By default, these
     * start with ``x-envoy`` but this may be overridden in the ``Bootstrap``
     * configuration using the
     * :ref:`header_prefix <envoy_v3_api_field_config.bootstrap.v3.Bootstrap.header_prefix>`
     * field. Default is false.
     * 
     *
     * .google.protobuf.BoolValue allow_envoy = 2;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> 
        getAllowEnvoyFieldBuilder() {
      if (allowEnvoyBuilder_ == null) {
        allowEnvoyBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder>(
                getAllowEnvoy(),
                getParentForChildren(),
                isClean());
        allowEnvoy_ = null;
      }
      return allowEnvoyBuilder_;
    }

    private com.google.protobuf.BoolValue disallowSystem_;
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> disallowSystemBuilder_;
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     * @return Whether the disallowSystem field is set.
     */
    public boolean hasDisallowSystem() {
      return disallowSystemBuilder_ != null || disallowSystem_ != null;
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     * @return The disallowSystem.
     */
    public com.google.protobuf.BoolValue getDisallowSystem() {
      if (disallowSystemBuilder_ == null) {
        return disallowSystem_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowSystem_;
      } else {
        return disallowSystemBuilder_.getMessage();
      }
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public Builder setDisallowSystem(com.google.protobuf.BoolValue value) {
      if (disallowSystemBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        disallowSystem_ = value;
        onChanged();
      } else {
        disallowSystemBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public Builder setDisallowSystem(
        com.google.protobuf.BoolValue.Builder builderForValue) {
      if (disallowSystemBuilder_ == null) {
        disallowSystem_ = builderForValue.build();
        onChanged();
      } else {
        disallowSystemBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public Builder mergeDisallowSystem(com.google.protobuf.BoolValue value) {
      if (disallowSystemBuilder_ == null) {
        if (disallowSystem_ != null) {
          disallowSystem_ =
            com.google.protobuf.BoolValue.newBuilder(disallowSystem_).mergeFrom(value).buildPartial();
        } else {
          disallowSystem_ = value;
        }
        onChanged();
      } else {
        disallowSystemBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public Builder clearDisallowSystem() {
      if (disallowSystemBuilder_ == null) {
        disallowSystem_ = null;
        onChanged();
      } else {
        disallowSystem_ = null;
        disallowSystemBuilder_ = null;
      }

      return this;
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public com.google.protobuf.BoolValue.Builder getDisallowSystemBuilder() {
      
      onChanged();
      return getDisallowSystemFieldBuilder().getBuilder();
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    public com.google.protobuf.BoolValueOrBuilder getDisallowSystemOrBuilder() {
      if (disallowSystemBuilder_ != null) {
        return disallowSystemBuilder_.getMessageOrBuilder();
      } else {
        return disallowSystem_ == null ?
            com.google.protobuf.BoolValue.getDefaultInstance() : disallowSystem_;
      }
    }
    /**
     *      * If true, prevent modification of any system header, defined as a header
     * that starts with a ``:`` character, regardless of any other settings.
     * A processing server may still override the ``:status`` of an HTTP response
     * using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_system = 3;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> 
        getDisallowSystemFieldBuilder() {
      if (disallowSystemBuilder_ == null) {
        disallowSystemBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder>(
                getDisallowSystem(),
                getParentForChildren(),
                isClean());
        disallowSystem_ = null;
      }
      return disallowSystemBuilder_;
    }

    private com.google.protobuf.BoolValue disallowAll_;
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> disallowAllBuilder_;
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     * @return Whether the disallowAll field is set.
     */
    public boolean hasDisallowAll() {
      return disallowAllBuilder_ != null || disallowAll_ != null;
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     * @return The disallowAll.
     */
    public com.google.protobuf.BoolValue getDisallowAll() {
      if (disallowAllBuilder_ == null) {
        return disallowAll_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowAll_;
      } else {
        return disallowAllBuilder_.getMessage();
      }
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public Builder setDisallowAll(com.google.protobuf.BoolValue value) {
      if (disallowAllBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        disallowAll_ = value;
        onChanged();
      } else {
        disallowAllBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public Builder setDisallowAll(
        com.google.protobuf.BoolValue.Builder builderForValue) {
      if (disallowAllBuilder_ == null) {
        disallowAll_ = builderForValue.build();
        onChanged();
      } else {
        disallowAllBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public Builder mergeDisallowAll(com.google.protobuf.BoolValue value) {
      if (disallowAllBuilder_ == null) {
        if (disallowAll_ != null) {
          disallowAll_ =
            com.google.protobuf.BoolValue.newBuilder(disallowAll_).mergeFrom(value).buildPartial();
        } else {
          disallowAll_ = value;
        }
        onChanged();
      } else {
        disallowAllBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public Builder clearDisallowAll() {
      if (disallowAllBuilder_ == null) {
        disallowAll_ = null;
        onChanged();
      } else {
        disallowAll_ = null;
        disallowAllBuilder_ = null;
      }

      return this;
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public com.google.protobuf.BoolValue.Builder getDisallowAllBuilder() {
      
      onChanged();
      return getDisallowAllFieldBuilder().getBuilder();
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    public com.google.protobuf.BoolValueOrBuilder getDisallowAllOrBuilder() {
      if (disallowAllBuilder_ != null) {
        return disallowAllBuilder_.getMessageOrBuilder();
      } else {
        return disallowAll_ == null ?
            com.google.protobuf.BoolValue.getDefaultInstance() : disallowAll_;
      }
    }
    /**
     *      * If true, prevent modifications of all header values, regardless of any
     * other settings. A processing server may still override the ``:status``
     * of an HTTP response using an ``ImmediateResponse`` message. Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_all = 4;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> 
        getDisallowAllFieldBuilder() {
      if (disallowAllBuilder_ == null) {
        disallowAllBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder>(
                getDisallowAll(),
                getParentForChildren(),
                isClean());
        disallowAll_ = null;
      }
      return disallowAllBuilder_;
    }

    private io.envoyproxy.envoy.type.matcher.v3.RegexMatcher allowExpression_;
    private com.google.protobuf.SingleFieldBuilderV3<
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder> allowExpressionBuilder_;
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     * @return Whether the allowExpression field is set.
     */
    public boolean hasAllowExpression() {
      return allowExpressionBuilder_ != null || allowExpression_ != null;
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     * @return The allowExpression.
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher getAllowExpression() {
      if (allowExpressionBuilder_ == null) {
        return allowExpression_ == null ? io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : allowExpression_;
      } else {
        return allowExpressionBuilder_.getMessage();
      }
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public Builder setAllowExpression(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher value) {
      if (allowExpressionBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        allowExpression_ = value;
        onChanged();
      } else {
        allowExpressionBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public Builder setAllowExpression(
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder builderForValue) {
      if (allowExpressionBuilder_ == null) {
        allowExpression_ = builderForValue.build();
        onChanged();
      } else {
        allowExpressionBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public Builder mergeAllowExpression(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher value) {
      if (allowExpressionBuilder_ == null) {
        if (allowExpression_ != null) {
          allowExpression_ =
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.newBuilder(allowExpression_).mergeFrom(value).buildPartial();
        } else {
          allowExpression_ = value;
        }
        onChanged();
      } else {
        allowExpressionBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public Builder clearAllowExpression() {
      if (allowExpressionBuilder_ == null) {
        allowExpression_ = null;
        onChanged();
      } else {
        allowExpression_ = null;
        allowExpressionBuilder_ = null;
      }

      return this;
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder getAllowExpressionBuilder() {
      
      onChanged();
      return getAllowExpressionFieldBuilder().getBuilder();
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder getAllowExpressionOrBuilder() {
      if (allowExpressionBuilder_ != null) {
        return allowExpressionBuilder_.getMessageOrBuilder();
      } else {
        return allowExpression_ == null ?
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : allowExpression_;
      }
    }
    /**
     *      * If set, specifically allow any header that matches this regular
     * expression. This overrides all other settings except for
     * ``disallow_expression``.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher allow_expression = 5;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder> 
        getAllowExpressionFieldBuilder() {
      if (allowExpressionBuilder_ == null) {
        allowExpressionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder>(
                getAllowExpression(),
                getParentForChildren(),
                isClean());
        allowExpression_ = null;
      }
      return allowExpressionBuilder_;
    }

    private io.envoyproxy.envoy.type.matcher.v3.RegexMatcher disallowExpression_;
    private com.google.protobuf.SingleFieldBuilderV3<
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder> disallowExpressionBuilder_;
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     * @return Whether the disallowExpression field is set.
     */
    public boolean hasDisallowExpression() {
      return disallowExpressionBuilder_ != null || disallowExpression_ != null;
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     * @return The disallowExpression.
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher getDisallowExpression() {
      if (disallowExpressionBuilder_ == null) {
        return disallowExpression_ == null ? io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : disallowExpression_;
      } else {
        return disallowExpressionBuilder_.getMessage();
      }
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public Builder setDisallowExpression(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher value) {
      if (disallowExpressionBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        disallowExpression_ = value;
        onChanged();
      } else {
        disallowExpressionBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public Builder setDisallowExpression(
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder builderForValue) {
      if (disallowExpressionBuilder_ == null) {
        disallowExpression_ = builderForValue.build();
        onChanged();
      } else {
        disallowExpressionBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public Builder mergeDisallowExpression(io.envoyproxy.envoy.type.matcher.v3.RegexMatcher value) {
      if (disallowExpressionBuilder_ == null) {
        if (disallowExpression_ != null) {
          disallowExpression_ =
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.newBuilder(disallowExpression_).mergeFrom(value).buildPartial();
        } else {
          disallowExpression_ = value;
        }
        onChanged();
      } else {
        disallowExpressionBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public Builder clearDisallowExpression() {
      if (disallowExpressionBuilder_ == null) {
        disallowExpression_ = null;
        onChanged();
      } else {
        disallowExpression_ = null;
        disallowExpressionBuilder_ = null;
      }

      return this;
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder getDisallowExpressionBuilder() {
      
      onChanged();
      return getDisallowExpressionFieldBuilder().getBuilder();
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    public io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder getDisallowExpressionOrBuilder() {
      if (disallowExpressionBuilder_ != null) {
        return disallowExpressionBuilder_.getMessageOrBuilder();
      } else {
        return disallowExpression_ == null ?
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.getDefaultInstance() : disallowExpression_;
      }
    }
    /**
     *      * If set, specifically disallow any header that matches this regular
     * expression regardless of any other settings.
     * 
     *
     * .envoy.type.matcher.v3.RegexMatcher disallow_expression = 6;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder> 
        getDisallowExpressionFieldBuilder() {
      if (disallowExpressionBuilder_ == null) {
        disallowExpressionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            io.envoyproxy.envoy.type.matcher.v3.RegexMatcher, io.envoyproxy.envoy.type.matcher.v3.RegexMatcher.Builder, io.envoyproxy.envoy.type.matcher.v3.RegexMatcherOrBuilder>(
                getDisallowExpression(),
                getParentForChildren(),
                isClean());
        disallowExpression_ = null;
      }
      return disallowExpressionBuilder_;
    }

    private com.google.protobuf.BoolValue disallowIsError_;
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> disallowIsErrorBuilder_;
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     * @return Whether the disallowIsError field is set.
     */
    public boolean hasDisallowIsError() {
      return disallowIsErrorBuilder_ != null || disallowIsError_ != null;
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     * @return The disallowIsError.
     */
    public com.google.protobuf.BoolValue getDisallowIsError() {
      if (disallowIsErrorBuilder_ == null) {
        return disallowIsError_ == null ? com.google.protobuf.BoolValue.getDefaultInstance() : disallowIsError_;
      } else {
        return disallowIsErrorBuilder_.getMessage();
      }
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public Builder setDisallowIsError(com.google.protobuf.BoolValue value) {
      if (disallowIsErrorBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        disallowIsError_ = value;
        onChanged();
      } else {
        disallowIsErrorBuilder_.setMessage(value);
      }

      return this;
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public Builder setDisallowIsError(
        com.google.protobuf.BoolValue.Builder builderForValue) {
      if (disallowIsErrorBuilder_ == null) {
        disallowIsError_ = builderForValue.build();
        onChanged();
      } else {
        disallowIsErrorBuilder_.setMessage(builderForValue.build());
      }

      return this;
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public Builder mergeDisallowIsError(com.google.protobuf.BoolValue value) {
      if (disallowIsErrorBuilder_ == null) {
        if (disallowIsError_ != null) {
          disallowIsError_ =
            com.google.protobuf.BoolValue.newBuilder(disallowIsError_).mergeFrom(value).buildPartial();
        } else {
          disallowIsError_ = value;
        }
        onChanged();
      } else {
        disallowIsErrorBuilder_.mergeFrom(value);
      }

      return this;
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public Builder clearDisallowIsError() {
      if (disallowIsErrorBuilder_ == null) {
        disallowIsError_ = null;
        onChanged();
      } else {
        disallowIsError_ = null;
        disallowIsErrorBuilder_ = null;
      }

      return this;
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public com.google.protobuf.BoolValue.Builder getDisallowIsErrorBuilder() {
      
      onChanged();
      return getDisallowIsErrorFieldBuilder().getBuilder();
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    public com.google.protobuf.BoolValueOrBuilder getDisallowIsErrorOrBuilder() {
      if (disallowIsErrorBuilder_ != null) {
        return disallowIsErrorBuilder_.getMessageOrBuilder();
      } else {
        return disallowIsError_ == null ?
            com.google.protobuf.BoolValue.getDefaultInstance() : disallowIsError_;
      }
    }
    /**
     *      * If true, and if the rules in this list cause a header mutation to be
     * disallowed, then the filter using this configuration will terminate the
     * request with a 500 error. In addition, regardless of the setting of this
     * parameter, any attempt to set, add, or modify a disallowed header will
     * cause the ``rejected_header_mutations`` counter to be incremented.
     * Default is false.
     * 
     *
     * .google.protobuf.BoolValue disallow_is_error = 7;
     */
    private com.google.protobuf.SingleFieldBuilderV3<
        com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder> 
        getDisallowIsErrorFieldBuilder() {
      if (disallowIsErrorBuilder_ == null) {
        disallowIsErrorBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.BoolValue, com.google.protobuf.BoolValue.Builder, com.google.protobuf.BoolValueOrBuilder>(
                getDisallowIsError(),
                getParentForChildren(),
                isClean());
        disallowIsError_ = null;
      }
      return disallowIsErrorBuilder_;
    }
    @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:envoy.config.common.mutation_rules.v3.HeaderMutationRules)
  }

  // @@protoc_insertion_point(class_scope:envoy.config.common.mutation_rules.v3.HeaderMutationRules)
  private static final io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules DEFAULT_INSTANCE;
  static {
    DEFAULT_INSTANCE = new io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules();
  }

  public static io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser
      PARSER = new com.google.protobuf.AbstractParser() {
    @java.lang.Override
    public HeaderMutationRules parsePartialFrom(
        com.google.protobuf.CodedInputStream input,
        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws com.google.protobuf.InvalidProtocolBufferException {
      return new HeaderMutationRules(input, extensionRegistry);
    }
  };

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

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

  @java.lang.Override
  public io.envoyproxy.envoy.config.common.mutation_rules.v3.HeaderMutationRules getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }

}