content: /*
   * Copyright 2017 the original author or authors.
   *
   * 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
   *
   *      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.github.alexfalappa.nbspringboot.cfgprops.lexer;
  
  import java.io.IOException;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  import org.netbeans.api.lexer.Token;
  import org.netbeans.spi.lexer.Lexer;
  import org.netbeans.spi.lexer.LexerRestartInfo;
  import org.netbeans.spi.lexer.TokenFactory;
  
  /**
   * NB Lexer for Spring Boot configuration properties.
   * <p>
   * Bridges the JFlex generated scanner with NB lexing API.
   *
   * @author Alessandro Falappa
   */
  public class CfgPropsLexer implements Lexer<CfgPropsTokenId> {
  
      private final CfgPropsScanner scanner;
      private final TokenFactory<CfgPropsTokenId> tokenFactory;
  
      CfgPropsLexer(LexerRestartInfo<CfgPropsTokenId> info) {
          scanner = new CfgPropsScanner(info);
          tokenFactory = info.tokenFactory();
      }
  
      @Override
      public Token<CfgPropsTokenId> nextToken() {
          try {
              CfgPropsTokenId tokenId = scanner.nextTokenId();
              Token<CfgPropsTokenId> token = null;
              if (tokenId != null) {
                  token = tokenFactory.createToken(tokenId);
              }
              return token;
          } catch (IOException ex) {
              Logger.getLogger(CfgPropsLexer.class.getName()).log(Level.SEVERE, null, ex);
          }
          return null;
      }
  
      @Override
      public Object state() {
          return scanner.getState();
      }
  
      @Override
      public void release() {
      }
  
  }
  