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 org.apache.asterix.lang.common.statement;
  
  import org.apache.asterix.common.exceptions.CompilationException;
  import org.apache.asterix.common.metadata.DataverseName;
  import org.apache.asterix.common.metadata.Namespace;
  import org.apache.asterix.lang.common.base.AbstractStatement;
  import org.apache.asterix.lang.common.expression.RecordConstructor;
  import org.apache.asterix.lang.common.util.FullTextUtil;
  import org.apache.asterix.lang.common.visitor.base.ILangVisitor;
  import org.apache.asterix.object.base.AdmArrayNode;
  import org.apache.asterix.object.base.AdmObjectNode;
  import org.apache.asterix.object.base.AdmStringNode;
  import org.apache.asterix.object.base.IAdmNode;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.storage.am.lsm.invertedindex.fulltext.TokenizerCategory;
  
  import com.google.common.collect.ImmutableList;
  
  public class CreateFullTextConfigStatement extends AbstractStatement {
  
      private final Namespace namespace;
      private final String configName;
      private final boolean ifNotExists;
      private final AdmObjectNode configNode;
  
      public static final String FIELD_NAME_TOKENIZER = "tokenizer";
      public static final String FIELD_NAME_FILTER_PIPELINE = "filterPipeline";
  
      public CreateFullTextConfigStatement(Namespace namespace, String configName, boolean ifNotExists,
              RecordConstructor expr) throws CompilationException {
          this.namespace = namespace;
          this.configName = configName;
          this.ifNotExists = ifNotExists;
          this.configNode = FullTextUtil.validateAndGetConfigNode(expr);
      }
  
      public Namespace getNamespace() {
          return namespace;
      }
  
      public DataverseName getDataverseName() {
          return namespace == null ? null : namespace.getDataverseName();
      }
  
      public String getConfigName() {
          return configName;
      }
  
      public boolean getIfNotExists() {
          return ifNotExists;
      }
  
      @Override
      public Kind getKind() {
          return Kind.CREATE_FULL_TEXT_CONFIG;
      }
  
      @Override
      public <R, T> R accept(ILangVisitor<R, T> visitor, T arg) throws CompilationException {
          return visitor.visit(this, arg);
      }
  
      @Override
      public byte getCategory() {
          return Category.DDL;
      }
  
      public TokenizerCategory getTokenizerCategory() throws HyracksDataException {
          String tokenizerCategoryStr = configNode.getString(FIELD_NAME_TOKENIZER);
          return TokenizerCategory.getEnumIgnoreCase(tokenizerCategoryStr);
      }
  
      public ImmutableList<String> getFilterNames() {
          AdmArrayNode arrayNode = (AdmArrayNode) configNode.get(FIELD_NAME_FILTER_PIPELINE);
          ImmutableList.Builder<String> filterNamesBuilder = ImmutableList.builder();
  
          for (IAdmNode iAdmNode : arrayNode) {
              filterNamesBuilder.add(((AdmStringNode) iAdmNode).get());
          }
  
          return filterNamesBuilder.build();
      }
  
  }
  