/*
    * 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.bcel.verifier.tests;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.net.URISyntaxException;
  
  import org.apache.bcel.classfile.JavaClass;
  import org.apache.bcel.classfile.Utility;
  
  public abstract class TestCreator {
  
      // Common package base name for generated test classes
      protected static final String TEST_PACKAGE = TestCreator.class.getPackage().getName();
  
      public void create() throws IOException {
          final File classFile = new File(getPackageFolder(), getClassName());
          try (FileOutputStream out = new FileOutputStream(classFile)) {
              create(out);
          }
      }
  
      public abstract void create(OutputStream out) throws IOException;
  
      private File getClassesFolder() throws IOException {
          try {
              return new File(getClass().getProtectionDomain().getCodeSource().getLocation().toURI());
          } catch (final URISyntaxException e) {
              throw new IOException(e);
          }
      }
  
      private String getClassName() {
          final String name = getClass().getName();
          return name.substring(name.lastIndexOf('.') + 1).replace("Creator", JavaClass.EXTENSION);
      }
  
      private File getPackageFolder() throws IOException {
          return new File(getClassesFolder(), getPackageName());
      }
  
      protected String getPackageName() {
          return Utility.packageToPath(getClass().getPackage().getName());
      }
  }