/*
 * Copyright 2023 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/pubsub/v1/pubsub.proto

package com.google.pubsub.v1;

/**
 *
 *
 * <pre>
 * Request for the `Seek` method.
 * </pre>
 *
 * Protobuf type {@code google.pubsub.v1.SeekRequest}
 */
public final class SeekRequest extends com.google.protobuf.GeneratedMessageV3
    implements
    // @@protoc_insertion_point(message_implements:google.pubsub.v1.SeekRequest)
    SeekRequestOrBuilder {
  private static final long serialVersionUID = 0L;
  // Use SeekRequest.newBuilder() to construct.
  private SeekRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
    super(builder);
  }

  private SeekRequest() {
    subscription_ = "";
  }

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

  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.pubsub.v1.PubsubProto.internal_static_google_pubsub_v1_SeekRequest_descriptor;
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
      internalGetFieldAccessorTable() {
    return com.google.pubsub.v1.PubsubProto
        .internal_static_google_pubsub_v1_SeekRequest_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.pubsub.v1.SeekRequest.class, com.google.pubsub.v1.SeekRequest.Builder.class);
  }

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  @SuppressWarnings("serial")
  private java.lang.Object target_;

  public enum TargetCase
      implements
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    TIME(2),
    SNAPSHOT(3),
    TARGET_NOT_SET(0);
    private final int value;

    private TargetCase(int value) {
      this.value = value;
    }
    /**
     * @param value The number of the enum to look for.
     * @return The enum associated with the given number.
     * @deprecated Use {@link #forNumber(int)} instead.
     */
    @java.lang.Deprecated
    public static TargetCase valueOf(int value) {
      return forNumber(value);
    }

    public static TargetCase forNumber(int value) {
      switch (value) {
        case 2:
          return TIME;
        case 3:
          return SNAPSHOT;
        case 0:
          return TARGET_NOT_SET;
        default:
          return null;
      }
    }

    public int getNumber() {
      return this.value;
    }
  };

  public TargetCase getTargetCase() {
    return TargetCase.forNumber(targetCase_);
  }

  public static final int SUBSCRIPTION_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private volatile java.lang.Object subscription_ = "";
  /**
   *
   *
   * <pre>
   * Required. The subscription to affect.
   * </pre>
   *
   * <code>
   * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The subscription.
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  public java.lang.String getSubscription() {
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  /**
   *
   *
   * <pre>
   * Required. The subscription to affect.
   * </pre>
   *
   * <code>
   * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
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  public com.google.protobuf.ByteString getSubscriptionBytes() {
    java.lang.Object ref = subscription_;
    if (ref instanceof java.lang.String) {
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      subscription_ = b;
      return b;
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      return (com.google.protobuf.ByteString) ref;
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  }

  public static final int TIME_FIELD_NUMBER = 2;
  /**
   *
   *
   * <pre>
   * The time to seek to.
   * Messages retained in the subscription that were published before this
   * time are marked as acknowledged, and messages retained in the
   * subscription that were published after this time are marked as
   * unacknowledged. Note that this operation affects only those messages
   * retained in the subscription (configured by the combination of
   * `message_retention_duration` and `retain_acked_messages`). For example,
   * if `time` corresponds to a point before the message retention
   * window (or to a point before the system's notion of the subscription
   * creation time), only retained messages will be marked as unacknowledged,
   * and already-expunged messages will not be restored.
   * </pre>
   *
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   *
   * @return Whether the time field is set.
   */
  @java.lang.Override
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  }
  /**
   *
   *
   * <pre>
   * The time to seek to.
   * Messages retained in the subscription that were published before this
   * time are marked as acknowledged, and messages retained in the
   * subscription that were published after this time are marked as
   * unacknowledged. Note that this operation affects only those messages
   * retained in the subscription (configured by the combination of
   * `message_retention_duration` and `retain_acked_messages`). For example,
   * if `time` corresponds to a point before the message retention
   * window (or to a point before the system's notion of the subscription
   * creation time), only retained messages will be marked as unacknowledged,
   * and already-expunged messages will not be restored.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp time = 2;</code>
   *
   * @return The time.
   */
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    if (targetCase_ == 2) {
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    return com.google.protobuf.Timestamp.getDefaultInstance();
  }
  /**
   *
   *
   * <pre>
   * The time to seek to.
   * Messages retained in the subscription that were published before this
   * time are marked as acknowledged, and messages retained in the
   * subscription that were published after this time are marked as
   * unacknowledged. Note that this operation affects only those messages
   * retained in the subscription (configured by the combination of
   * `message_retention_duration` and `retain_acked_messages`). For example,
   * if `time` corresponds to a point before the message retention
   * window (or to a point before the system's notion of the subscription
   * creation time), only retained messages will be marked as unacknowledged,
   * and already-expunged messages will not be restored.
   * </pre>
   *
   * <code>.google.protobuf.Timestamp time = 2;</code>
   */
  @java.lang.Override
  public com.google.protobuf.TimestampOrBuilder getTimeOrBuilder() {
    if (targetCase_ == 2) {
      return (com.google.protobuf.Timestamp) target_;
    }
    return com.google.protobuf.Timestamp.getDefaultInstance();
  }

  public static final int SNAPSHOT_FIELD_NUMBER = 3;
  /**
   *
   *
   * <pre>
   * The snapshot to seek to. The snapshot's topic must be the same as that of
   * the provided subscription.
   * Format is `projects/{project}/snapshots/{snap}`.
   * </pre>
   *
   * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
   *
   * @return Whether the snapshot field is set.
   */
  public boolean hasSnapshot() {
    return targetCase_ == 3;
  }
  /**
   *
   *
   * <pre>
   * The snapshot to seek to. The snapshot's topic must be the same as that of
   * the provided subscription.
   * Format is `projects/{project}/snapshots/{snap}`.
   * </pre>
   *
   * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
   *
   * @return The snapshot.
   */
  public java.lang.String getSnapshot() {
    java.lang.Object ref = "";
    if (targetCase_ == 3) {
      ref = target_;
    }
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      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      if (targetCase_ == 3) {
        target_ = s;
      }
      return s;
    }
  }
  /**
   *
   *
   * <pre>
   * The snapshot to seek to. The snapshot's topic must be the same as that of
   * the provided subscription.
   * Format is `projects/{project}/snapshots/{snap}`.
   * </pre>
   *
   * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
   *
   * @return The bytes for snapshot.
   */
  public com.google.protobuf.ByteString getSnapshotBytes() {
    java.lang.Object ref = "";
    if (targetCase_ == 3) {
      ref = target_;
    }
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      if (targetCase_ == 3) {
        target_ = b;
      }
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
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  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 {
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      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, subscription_);
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    if (targetCase_ == 2) {
      output.writeMessage(2, (com.google.protobuf.Timestamp) target_);
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    if (targetCase_ == 3) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, target_);
    }
    getUnknownFields().writeTo(output);
  }

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

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subscription_)) {
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    if (targetCase_ == 2) {
      size +=
          com.google.protobuf.CodedOutputStream.computeMessageSize(
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    }
    if (targetCase_ == 3) {
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    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }

  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
      return true;
    }
    if (!(obj instanceof com.google.pubsub.v1.SeekRequest)) {
      return super.equals(obj);
    }
    com.google.pubsub.v1.SeekRequest other = (com.google.pubsub.v1.SeekRequest) obj;

    if (!getSubscription().equals(other.getSubscription())) return false;
    if (!getTargetCase().equals(other.getTargetCase())) return false;
    switch (targetCase_) {
      case 2:
        if (!getTime().equals(other.getTime())) return false;
        break;
      case 3:
        if (!getSnapshot().equals(other.getSnapshot())) return false;
        break;
      case 0:
      default:
    }
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
  }

  @java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + SUBSCRIPTION_FIELD_NUMBER;
    hash = (53 * hash) + getSubscription().hashCode();
    switch (targetCase_) {
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        hash = (53 * hash) + getTime().hashCode();
        break;
      case 3:
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        hash = (53 * hash) + getSnapshot().hashCode();
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      case 0:
      default:
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    memoizedHashCode = hash;
    return hash;
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(java.nio.ByteBuffer data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(com.google.protobuf.ByteString data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      com.google.protobuf.ByteString data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(byte[] data)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }

  public static com.google.pubsub.v1.SeekRequest parseDelimitedFrom(java.io.InputStream input)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
  }

  public static com.google.pubsub.v1.SeekRequest parseDelimitedFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
        PARSER, input, extensionRegistry);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
  }

  public static com.google.pubsub.v1.SeekRequest parseFrom(
      com.google.protobuf.CodedInputStream input,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }

  @java.lang.Override
  public Builder newBuilderForType() {
    return newBuilder();
  }

  public static Builder newBuilder() {
    return DEFAULT_INSTANCE.toBuilder();
  }

  public static Builder newBuilder(com.google.pubsub.v1.SeekRequest prototype) {
    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
  }

  @java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
  }

  @java.lang.Override
  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
    Builder builder = new Builder(parent);
    return builder;
  }
  /**
   *
   *
   * <pre>
   * Request for the `Seek` method.
   * </pre>
   *
   * Protobuf type {@code google.pubsub.v1.SeekRequest}
   */
  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder<Builder>
      implements
      // @@protoc_insertion_point(builder_implements:google.pubsub.v1.SeekRequest)
      com.google.pubsub.v1.SeekRequestOrBuilder {
    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
      return com.google.pubsub.v1.PubsubProto
          .internal_static_google_pubsub_v1_SeekRequest_descriptor;
    }

    @java.lang.Override
    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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              com.google.pubsub.v1.SeekRequest.Builder.class);
    }

    // Construct using com.google.pubsub.v1.SeekRequest.newBuilder()
    private Builder() {}

    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
      super(parent);
    }

    @java.lang.Override
    public Builder clear() {
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      bitField0_ = 0;
      subscription_ = "";
      if (timeBuilder_ != null) {
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      targetCase_ = 0;
      target_ = null;
      return this;
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    @java.lang.Override
    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
      return com.google.pubsub.v1.PubsubProto
          .internal_static_google_pubsub_v1_SeekRequest_descriptor;
    }

    @java.lang.Override
    public com.google.pubsub.v1.SeekRequest getDefaultInstanceForType() {
      return com.google.pubsub.v1.SeekRequest.getDefaultInstance();
    }

    @java.lang.Override
    public com.google.pubsub.v1.SeekRequest build() {
      com.google.pubsub.v1.SeekRequest result = buildPartial();
      if (!result.isInitialized()) {
        throw newUninitializedMessageException(result);
      }
      return result;
    }

    @java.lang.Override
    public com.google.pubsub.v1.SeekRequest buildPartial() {
      com.google.pubsub.v1.SeekRequest result = new com.google.pubsub.v1.SeekRequest(this);
      if (bitField0_ != 0) {
        buildPartial0(result);
      }
      buildPartialOneofs(result);
      onBuilt();
      return result;
    }

    private void buildPartial0(com.google.pubsub.v1.SeekRequest result) {
      int from_bitField0_ = bitField0_;
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    private void buildPartialOneofs(com.google.pubsub.v1.SeekRequest result) {
      result.targetCase_ = targetCase_;
      result.target_ = this.target_;
      if (targetCase_ == 2 && timeBuilder_ != null) {
        result.target_ = timeBuilder_.build();
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    @java.lang.Override
    public Builder clone() {
      return super.clone();
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    @java.lang.Override
    public Builder setField(
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      return super.setField(field, value);
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    @java.lang.Override
    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
      return super.clearField(field);
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    @java.lang.Override
    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
      return super.clearOneof(oneof);
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    @java.lang.Override
    public Builder setRepeatedField(
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      return super.setRepeatedField(field, index, value);
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    @java.lang.Override
    public Builder addRepeatedField(
        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
      return super.addRepeatedField(field, value);
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    @java.lang.Override
    public Builder mergeFrom(com.google.protobuf.Message other) {
      if (other instanceof com.google.pubsub.v1.SeekRequest) {
        return mergeFrom((com.google.pubsub.v1.SeekRequest) other);
      } else {
        super.mergeFrom(other);
        return this;
      }
    }

    public Builder mergeFrom(com.google.pubsub.v1.SeekRequest other) {
      if (other == com.google.pubsub.v1.SeekRequest.getDefaultInstance()) return this;
      if (!other.getSubscription().isEmpty()) {
        subscription_ = other.subscription_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      switch (other.getTargetCase()) {
        case TIME:
          {
            mergeTime(other.getTime());
            break;
          }
        case SNAPSHOT:
          {
            targetCase_ = 3;
            target_ = other.target_;
            onChanged();
            break;
          }
        case TARGET_NOT_SET:
          {
            break;
          }
      }
      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 {
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            case 10:
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                break;
              } // case 10
            case 18:
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                targetCase_ = 2;
                break;
              } // case 18
            case 26:
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                java.lang.String s = input.readStringRequireUtf8();
                targetCase_ = 3;
                target_ = s;
                break;
              } // case 26
            default:
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              } // default:
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        } // while (!done)
      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
        throw e.unwrapIOException();
      } finally {
        onChanged();
      } // finally
      return this;
    }

    private int targetCase_ = 0;
    private java.lang.Object target_;

    public TargetCase getTargetCase() {
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    }

    public Builder clearTarget() {
      targetCase_ = 0;
      target_ = null;
      onChanged();
      return this;
    }

    private int bitField0_;

    private java.lang.Object subscription_ = "";
    /**
     *
     *
     * <pre>
     * Required. The subscription to affect.
     * </pre>
     *
     * <code>
     * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The subscription.
     */
    public java.lang.String getSubscription() {
      java.lang.Object ref = subscription_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        subscription_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * Required. The subscription to affect.
     * </pre>
     *
     * <code>
     * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return The bytes for subscription.
     */
    public com.google.protobuf.ByteString getSubscriptionBytes() {
      java.lang.Object ref = subscription_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
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        subscription_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * Required. The subscription to affect.
     * </pre>
     *
     * <code>
     * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @param value The subscription to set.
     * @return This builder for chaining.
     */
    public Builder setSubscription(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      subscription_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Required. The subscription to affect.
     * </pre>
     *
     * <code>
     * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearSubscription() {
      subscription_ = getDefaultInstance().getSubscription();
      bitField0_ = (bitField0_ & ~0x00000001);
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * Required. The subscription to affect.
     * </pre>
     *
     * <code>
     * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
     * </code>
     *
     * @param value The bytes for subscription to set.
     * @return This builder for chaining.
     */
    public Builder setSubscriptionBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      subscription_ = value;
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }

    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        timeBuilder_;
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     *
     * @return Whether the time field is set.
     */
    @java.lang.Override
    public boolean hasTime() {
      return targetCase_ == 2;
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     *
     * @return The time.
     */
    @java.lang.Override
    public com.google.protobuf.Timestamp getTime() {
      if (timeBuilder_ == null) {
        if (targetCase_ == 2) {
          return (com.google.protobuf.Timestamp) target_;
        }
        return com.google.protobuf.Timestamp.getDefaultInstance();
      } else {
        if (targetCase_ == 2) {
          return timeBuilder_.getMessage();
        }
        return com.google.protobuf.Timestamp.getDefaultInstance();
      }
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    public Builder setTime(com.google.protobuf.Timestamp value) {
      if (timeBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        target_ = value;
        onChanged();
      } else {
        timeBuilder_.setMessage(value);
      }
      targetCase_ = 2;
      return this;
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    public Builder setTime(com.google.protobuf.Timestamp.Builder builderForValue) {
      if (timeBuilder_ == null) {
        target_ = builderForValue.build();
        onChanged();
      } else {
        timeBuilder_.setMessage(builderForValue.build());
      }
      targetCase_ = 2;
      return this;
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    public Builder mergeTime(com.google.protobuf.Timestamp value) {
      if (timeBuilder_ == null) {
        if (targetCase_ == 2 && target_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
          target_ =
              com.google.protobuf.Timestamp.newBuilder((com.google.protobuf.Timestamp) target_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          target_ = value;
        }
        onChanged();
      } else {
        if (targetCase_ == 2) {
          timeBuilder_.mergeFrom(value);
        } else {
          timeBuilder_.setMessage(value);
        }
      }
      targetCase_ = 2;
      return this;
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    public Builder clearTime() {
      if (timeBuilder_ == null) {
        if (targetCase_ == 2) {
          targetCase_ = 0;
          target_ = null;
          onChanged();
        }
      } else {
        if (targetCase_ == 2) {
          targetCase_ = 0;
          target_ = null;
        }
        timeBuilder_.clear();
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    public com.google.protobuf.Timestamp.Builder getTimeBuilder() {
      return getTimeFieldBuilder().getBuilder();
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    @java.lang.Override
    public com.google.protobuf.TimestampOrBuilder getTimeOrBuilder() {
      if ((targetCase_ == 2) && (timeBuilder_ != null)) {
        return timeBuilder_.getMessageOrBuilder();
      } else {
        if (targetCase_ == 2) {
          return (com.google.protobuf.Timestamp) target_;
        }
        return com.google.protobuf.Timestamp.getDefaultInstance();
      }
    }
    /**
     *
     *
     * <pre>
     * The time to seek to.
     * Messages retained in the subscription that were published before this
     * time are marked as acknowledged, and messages retained in the
     * subscription that were published after this time are marked as
     * unacknowledged. Note that this operation affects only those messages
     * retained in the subscription (configured by the combination of
     * `message_retention_duration` and `retain_acked_messages`). For example,
     * if `time` corresponds to a point before the message retention
     * window (or to a point before the system's notion of the subscription
     * creation time), only retained messages will be marked as unacknowledged,
     * and already-expunged messages will not be restored.
     * </pre>
     *
     * <code>.google.protobuf.Timestamp time = 2;</code>
     */
    private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getTimeFieldBuilder() {
      if (timeBuilder_ == null) {
        if (!(targetCase_ == 2)) {
          target_ = com.google.protobuf.Timestamp.getDefaultInstance();
        }
        timeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                (com.google.protobuf.Timestamp) target_, getParentForChildren(), isClean());
        target_ = null;
      }
      targetCase_ = 2;
      onChanged();
      return timeBuilder_;
    }

    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @return Whether the snapshot field is set.
     */
    @java.lang.Override
    public boolean hasSnapshot() {
      return targetCase_ == 3;
    }
    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @return The snapshot.
     */
    @java.lang.Override
    public java.lang.String getSnapshot() {
      java.lang.Object ref = "";
      if (targetCase_ == 3) {
        ref = target_;
      }
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        if (targetCase_ == 3) {
          target_ = s;
        }
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @return The bytes for snapshot.
     */
    @java.lang.Override
    public com.google.protobuf.ByteString getSnapshotBytes() {
      java.lang.Object ref = "";
      if (targetCase_ == 3) {
        ref = target_;
      }
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        if (targetCase_ == 3) {
          target_ = b;
        }
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @param value The snapshot to set.
     * @return This builder for chaining.
     */
    public Builder setSnapshot(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      targetCase_ = 3;
      target_ = value;
      onChanged();
      return this;
    }
    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearSnapshot() {
      if (targetCase_ == 3) {
        targetCase_ = 0;
        target_ = null;
        onChanged();
      }
      return this;
    }
    /**
     *
     *
     * <pre>
     * The snapshot to seek to. The snapshot's topic must be the same as that of
     * the provided subscription.
     * Format is `projects/{project}/snapshots/{snap}`.
     * </pre>
     *
     * <code>string snapshot = 3 [(.google.api.resource_reference) = { ... }</code>
     *
     * @param value The bytes for snapshot to set.
     * @return This builder for chaining.
     */
    public Builder setSnapshotBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      targetCase_ = 3;
      target_ = value;
      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.pubsub.v1.SeekRequest)
  }

  // @@protoc_insertion_point(class_scope:google.pubsub.v1.SeekRequest)
  private static final com.google.pubsub.v1.SeekRequest DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.pubsub.v1.SeekRequest();
  }

  public static com.google.pubsub.v1.SeekRequest getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<SeekRequest> PARSER =
      new com.google.protobuf.AbstractParser<SeekRequest>() {
        @java.lang.Override
        public SeekRequest 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<SeekRequest> parser() {
    return PARSER;
  }

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

  @java.lang.Override
  public com.google.pubsub.v1.SeekRequest getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
