content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package com.aliyun.odps.table;
  
  import java.io.Serializable;
  import java.util.Objects;
  
  import com.aliyun.odps.table.utils.Preconditions;
  import com.aliyun.odps.utils.CommonUtils;
  import com.aliyun.odps.utils.OdpsCommonUtils;
  
  /**
   * Identifier of stream object.
   */
  public class StreamIdentifier implements Serializable {
  
    private final String project;
    private final String streamName;
  
    public static StreamIdentifier of(String project, String streamName) {
      return new StreamIdentifier(project, streamName);
    }
  
    public StreamIdentifier(String project, String streamName) {
      Preconditions.checkString(project, "Identifier project cannot be null");
      Preconditions.checkString(streamName, "Identifier streamName cannot be null");
      this.project = project;
      this.streamName = streamName;
    }
  
    public String getProject() {
      return project;
    }
  
  
    public String getStreamName() {
      return streamName;
    }
  
    @Override
    public String toString() {
      return CommonUtils.quoteRef(project) + "." + CommonUtils.quoteRef(streamName);
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
  
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
  
      StreamIdentifier that = (StreamIdentifier) o;
      return project.equals(that.project) && streamName.equals(that.streamName);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(project, streamName);
    }
  }
  