content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   * Copyright (C) 2016-2020 the AndroidAnnotations project
   *
   * 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 org.androidannotations.internal.generation;
  
  import java.io.IOException;
  import java.nio.charset.Charset;
  import java.nio.charset.UnsupportedCharsetException;
  
  import javax.annotation.processing.Filer;
  
  import org.androidannotations.Option;
  import org.androidannotations.internal.process.ModelProcessor;
  import org.androidannotations.logger.Logger;
  import org.androidannotations.logger.LoggerFactory;
  
  import com.helger.jcodemodel.writer.PrologCodeWriter;
  
  public class CodeModelGenerator {
  
  	public static final Option OPTION_ENCODING = new Option("encoding", "UTF-8");
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(CodeModelGenerator.class);
  
  	private final Filer filer;
  	private final String header;
  	private final String encoding;
  
  	public CodeModelGenerator(Filer filer, String aaVersion, String encoding) {
  		this.filer = filer;
  		this.header = "DO NOT EDIT THIS FILE.\n" + "Generated using AndroidAnnotations " + aaVersion + ".\n\n"
  				+ "You can create a larger work that contains this file and distribute that work under terms of your choice.\n";
  		this.encoding = encoding;
  	}
  
  	public void generate(ModelProcessor.ProcessResult processResult) throws IOException {
  		Charset charset = getCharset();
  
  		SourceCodeWriter sourceCodeWriter = new SourceCodeWriter(filer, processResult.originatingElements, charset);
  
  		PrologCodeWriter prologCodeWriter = new PrologCodeWriter(sourceCodeWriter, header);
  
  		processResult.codeModel.build(prologCodeWriter, new ResourceCodeWriter(filer, charset));
  	}
  
  	private Charset getCharset() {
  		try {
  			return Charset.forName(encoding);
  		} catch (UnsupportedCharsetException exception) {
  			Charset defaultCharset = Charset.defaultCharset();
  
  			LOGGER.warn("The requested charset ({}) is not available, falling back to platform default ({}).", encoding, defaultCharset);
  
  			return defaultCharset;
  		}
  	}
  }
  