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Posted to dev@turbine.apache.org by jv...@apache.org on 2002/03/11 20:52:47 UTC

cvs commit: jakarta-turbine-maven/src/java/org/apache/maven ProjectResolver.java

jvanzyl     02/03/11 11:52:47

  Added:       src/java/org/apache/maven ProjectResolver.java
  Log:
  Tool that will look at a JAR file and determine what projects the
  JAR is dependent on. Will be used in conjunction with project descriptor
  generation.
  
  Revision  Changes    Path
  1.1                  jakarta-turbine-maven/src/java/org/apache/maven/ProjectResolver.java
  
  Index: ProjectResolver.java
  ===================================================================
  package org.apache.maven;
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache Maven" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache Maven", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  import java.io.File;
  import java.io.InputStream;
  
  import java.util.Iterator;
  import java.util.List;
  import java.util.LinkedList;
  import java.util.jar.JarFile;
  import java.util.jar.JarEntry;
  import java.util.Map;
  import java.util.StringTokenizer;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  import org.apache.maven.util.JarUtil;
  import org.apache.maven.importscrubber.ClassParserWrapper;
  import org.apache.maven.importscrubber.TreeMapListener;
  
  public class ProjectResolver
  {
      private File file;
      private TreeMapListener treeMapListener;
      private List packageReferences;
      private List packageExcludes;
      
      public ProjectResolver()
      {
          packageReferences = new LinkedList();
          packageExcludes = new LinkedList();
      }
  
      public void setPackageExcludes(String packageExcludesList)
      {
          StringTokenizer st = new StringTokenizer(packageExcludesList,",");
          while (st.hasMoreTokens())
          {
              String packageExclude = st.nextToken();
              packageExcludes.add(packageExclude);
          }
      }
  
      public void setFile(File file)
      {
          System.out.println("setting file: " + file);
          this.file = file;
      }        
      
      public List getPackageReferences()
      {
          return packageReferences;
      }        
  
      public void resolveDependencies()
      {
          JarFile jarFile = null;
          treeMapListener = null;
          
          try
          {   
              jarFile = new JarFile(file);
              treeMapListener = new TreeMapListener();
              List classEntries = JarUtil.getClassEntries(jarFile);
              
              for (Iterator i = classEntries.iterator(); i.hasNext();)
              {
                  JarEntry jarEntry = (JarEntry) i.next();
                  InputStream classInputStream = jarFile.getInputStream(jarEntry);
                  ClassParserWrapper.parse(classInputStream, treeMapListener);
              }                
  
              jarFile.close();
              
              Map map = treeMapListener.getTreeMap();            
              for (Iterator i = map.keySet().iterator(); i.hasNext();)
              {
                  String classReference = (String) i.next();
                  
                  // Don't care about internal classes or classes
                  // that don't belong to a real package.
                  if (classReference.indexOf("$") < 0)
                  {
                      boolean includePackage = true;
                      
                      for (Iterator j = packageExcludes.iterator(); j.hasNext();)
                      {
                          String packageExclude = (String) j.next();
                          if (classReference.startsWith(packageExclude))
                          {
                              includePackage = false;
                              break;
                          }
                      }
                      
                      if (includePackage)
                      {
                          packageReferences.add(map.get(classReference));
                      }                        
                  }                    
              }
          }
          catch (Exception e)
          {
              e.printStackTrace();
          }
      }
  
      public static void main(String[] args)
      {
          BytecodeDependencyResolver bdr = new BytecodeDependencyResolver();
          bdr.setFile(new File(args[0]));
          bdr.setPackageExcludes(args[1]);
          bdr.resolveDependencies();
          List packageReferences = bdr.getPackageReferences();
          
          for (Iterator i = packageReferences.iterator(); i.hasNext();)
          {
              System.out.println(i.next());
          }            
      }
  }
  
  
  

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