com.datastax.dse.driver.internal.core.metadata.schema.ScriptHelper Maven / Gradle / Ivy

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/*
 * 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.datastax.dse.driver.internal.core.metadata.schema;

import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.internal.core.metadata.schema.ScriptBuilder;
import java.util.List;

public class ScriptHelper {

  public static void appendEdgeSide(
      ScriptBuilder builder,
      CqlIdentifier table,
      CqlIdentifier label,
      List partitionKeyColumns,
      List clusteringColumns,
      String keyword) {
    builder.append(" ").append(keyword).append(label).append("(");

    if (partitionKeyColumns.size() == 1) { // PRIMARY KEY (k
      builder.append(partitionKeyColumns.get(0));
    } else { // PRIMARY KEY ((k1, k2)
      builder.append("(");
      boolean first = true;
      for (CqlIdentifier pkColumn : partitionKeyColumns) {
        if (first) {
          first = false;
        } else {
          builder.append(", ");
        }
        builder.append(pkColumn);
      }
      builder.append(")");
    }
    // PRIMARY KEY (, cc1, cc2, cc3)
    for (CqlIdentifier clusteringColumn : clusteringColumns) {
      builder.append(", ").append(clusteringColumn);
    }
    builder.append(")");
  }
}