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Stream Feeds Java Client for backend and android integrations

There is a newer version: 3.15.0

package io.getstream.core.models;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;

import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import java.util.Objects;

@JsonSerialize(using = ToStringSerializer.class)
public final class FeedID {
  private final String slug;
  private final String userID;

  public FeedID(String slug, String userID) {
    checkNotNull(slug, "Feed slug can't be null");
    checkArgument(!slug.isEmpty(), "Feed slug can't be empty");
    checkArgument(!slug.contains(":"), "Invalid slug");
    checkNotNull(userID, "Feed user ID can't be null");
    checkArgument(!userID.contains(":"), "Invalid user ID");
    checkArgument(!userID.isEmpty(), "User ID can't be empty");

    this.slug = slug;
    this.userID = userID;
  }

  public FeedID(String id) {
    checkNotNull(id, "Feed ID can't be null");
    checkArgument(id.contains(":"), "Invalid feed ID");

    String[] parts = id.split(":");
    checkArgument(parts.length == 2, "Invalid feed ID");
    this.slug = parts[0];
    this.userID = parts[1];
  }

  public String getSlug() {
    return slug;
  }

  public String getUserID() {
    return userID;
  }

  public String getClaim() {
    return slug + userID;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    FeedID feedID = (FeedID) o;
    return Objects.equals(slug, feedID.slug) && Objects.equals(userID, feedID.userID);
  }

  @Override
  public int hashCode() {
    return Objects.hash(slug, userID);
  }

  @Override
  public String toString() {
    return slug + ':' + userID;
  }
}