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
   *
   *      https://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.tools.ant.taskdefs.optional.javah;
  
  import java.io.IOException;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Project;
  import org.apache.tools.ant.taskdefs.Execute;
  import org.apache.tools.ant.taskdefs.LogStreamHandler;
  import org.apache.tools.ant.taskdefs.optional.Javah;
  import org.apache.tools.ant.types.Commandline;
  import org.apache.tools.ant.util.JavaEnvUtils;
  
  /**
   * This implementation runs the javah executable in a separate process.
   *
   * @since Ant 1.9.8
   */
  public class ForkingJavah implements JavahAdapter {
  
      /**
       * the name of this adapter for users to select
       */
      public static final String IMPLEMENTATION_NAME = "forking";
  
      /**
       * Performs the actual compilation.
       * @param javah the calling javah task.
       * @return true if the compilation was successful.
       * @throws BuildException if there is an error.
       */
      @Override
      public boolean compile(Javah javah) throws BuildException {
          Commandline cmd = SunJavah.setupJavahCommand(javah);
          Project project = javah.getProject();
          String executable = JavaEnvUtils.getJdkExecutable("javah");
          javah.log("Running " + executable, Project.MSG_VERBOSE);
          cmd.setExecutable(executable);
  
          //set up the args
          String[] args = cmd.getCommandline();
  
          try {
              Execute exe = new Execute(new LogStreamHandler(javah,
                      Project.MSG_INFO,
                      Project.MSG_WARN));
              exe.setAntRun(project);
              exe.setWorkingDirectory(project.getBaseDir());
              exe.setCommandline(args);
              exe.execute();
              return !exe.isFailure();
          } catch (IOException exception) {
              throw new BuildException("Error running " + executable
                      + " -maybe it is not on the path", exception);
          }
      }
  }
  