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.extension.resolvers;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Project;
  import org.apache.tools.ant.taskdefs.Ant;
  import org.apache.tools.ant.taskdefs.optional.extension.Extension;
  import org.apache.tools.ant.taskdefs.optional.extension.ExtensionResolver;
  
  /**
   * Resolver that just returns s specified location.
   *
   */
  public class AntResolver implements ExtensionResolver {
      private File antfile;
      private File destfile;
      private String target;
  
      /**
       * Sets the ant file
       * @param antfile the ant file to set
       */
      public void setAntfile(final File antfile) {
          this.antfile = antfile;
      }
  
      /**
       * Sets the destination file
       * @param destfile the destination file
       */
      public void setDestfile(final File destfile) {
          this.destfile = destfile;
      }
  
      /**
       * Sets the target
       * @param target the target
       */
      public void setTarget(final String target) {
          this.target = target;
      }
  
      /**
       * Returns the resolved file
       * @param extension the extension
       * @param project the project
       * @return the file resolved
       * @throws BuildException if the file cannot be resolved
       */
      @Override
      public File resolve(final Extension extension,
                           final Project project) throws BuildException {
          validate();
  
          final Ant ant = new Ant();
          ant.setProject(project);
          ant.setInheritAll(false);
          ant.setAntfile(antfile.getName());
  
          try {
              final File dir =
                  antfile.getParentFile().getCanonicalFile();
              ant.setDir(dir);
          } catch (final IOException ioe) {
              throw new BuildException(ioe.getMessage(), ioe);
          }
  
          if (null != target) {
              ant.setTarget(target);
          }
  
          ant.execute();
  
          return destfile;
      }
  
      /*
       * Validates URL
       */
      private void validate() {
          if (null == antfile) {
              final String message = "Must specify Buildfile";
              throw new BuildException(message);
          }
  
          if (null == destfile) {
              final String message = "Must specify destination file";
              throw new BuildException(message);
          }
      }
  
      /**
       * Returns a string representation
       * @return the string representation
       */
      @Override
      public String toString() {
          return "Ant[" + antfile + "==>" + destfile + "]";
      }
  }
  