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.recordmanagergenerator;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  
  import org.apache.asterix.recordmanagergenerator.RecordType.Field;
  
  public class Generator {
  
      public enum TemplateType {
          RECORD_MANAGER,
          ARENA_MANAGER,
          SUPPORT
      }
  
      public static void generateSource(TemplateType tmplType, String packageName, RecordType rec, InputStream is,
              StringBuilder sb, boolean debug) {
          try {
              BufferedReader in = new BufferedReader(new InputStreamReader(is));
  
              switch (tmplType) {
                  case RECORD_MANAGER:
                      generateMemoryManagerSource(packageName, rec, in, sb, debug);
                      break;
                  case ARENA_MANAGER:
                      generateArenaManagerSource(packageName, rec, in, sb, debug);
                      break;
                  case SUPPORT:
                      generateSupportFileSource(packageName, in, sb, debug);
                      break;
                  default:
                      throw new IllegalArgumentException();
              }
          } catch (IOException ioe) {
              ioe.printStackTrace();
          }
  
      }
  
      private static void generateMemoryManagerSource(String packageName, RecordType resource, BufferedReader in,
              StringBuilder sb, boolean debug) throws IOException {
          String line = null;
          String indent = "    ";
  
          while ((line = in.readLine()) != null) {
              if (line.contains("@PACKAGE@")) {
                  line = line.replace("@PACKAGE@", packageName);
              }
              if (line.contains("@E@")) {
                  line = line.replace("@E@", resource.name);
              }
              if (line.contains("@DEBUG@")) {
                  line = line.replace("@DEBUG@", Boolean.toString(debug));
              }
              if (line.contains("@CONSTS@")) {
                  resource.appendConstants(sb, indent, 1);
                  sb.append('\n');
              } else if (line.contains("@METHODS@")) {
                  for (int i = 0; i < resource.size(); ++i) {
                      final Field field = resource.fields.get(i);
                      if (field.accessible) {
                          field.appendMemoryManagerGetMethod(sb, indent, 1);
                          sb.append('\n');
                          field.appendMemoryManagerSetMethod(sb, indent, 1);
                          sb.append('\n');
                      }
                  }
              } else if (line.contains("@INIT_SLOT@")) {
                  for (int i = 0; i < resource.size(); ++i) {
                      final Field field = resource.fields.get(i);
                      field.appendInitializers(sb, indent, 3);
                  }
              } else if (line.contains("@CHECK_SLOT@")) {
                  for (int i = 0; i < resource.size(); ++i) {
                      final Field field = resource.fields.get(i);
                      field.appendChecks(sb, indent, 3);
                  }
              } else if (line.contains("@PRINT_BUFFER@")) {
                  resource.appendBufferPrinter(sb, indent, 3);
                  sb.append('\n');
              } else {
                  sb.append(line).append('\n');
              }
          }
      }
  
      private static void generateArenaManagerSource(String packageName, RecordType resource, BufferedReader in,
              StringBuilder sb, boolean debug) throws IOException {
          String line = null;
          String indent = "    ";
  
          while ((line = in.readLine()) != null) {
              if (line.contains("@PACKAGE@")) {
                  line = line.replace("@PACKAGE@", packageName);
              }
              if (line.contains("@E@")) {
                  line = line.replace("@E@", resource.name);
              }
              if (line.contains("@DEBUG@")) {
                  line = line.replace("@DEBUG@", Boolean.toString(debug));
              }
              if (line.contains("@METHODS@")) {
                  for (int i = 0; i < resource.size(); ++i) {
                      final Field field = resource.fields.get(i);
                      if (field.accessible) {
                          field.appendArenaManagerGetMethod(sb, indent, 1);
                          sb.append('\n');
                          field.appendArenaManagerSetMethod(sb, indent, 1);
                          sb.append('\n');
                      }
                  }
              } else if (line.contains("@PRINT_RECORD@")) {
                  resource.appendRecordPrinter(sb, indent, 1);
                  sb.append('\n');
              } else {
                  sb.append(line).append('\n');
              }
          }
      }
  
      private static void generateSupportFileSource(String packageName, BufferedReader in, StringBuilder sb,
              boolean debug) throws IOException {
          String line = null;
          while ((line = in.readLine()) != null) {
              if (line.contains("@PACKAGE@")) {
                  line = line.replace("@PACKAGE@", packageName);
              }
              sb.append(line).append('\n');
          }
      }
  }
  