Java program and ant.jar

[Comal Rajagopalaratnam Muthukumar]

Campbell Ritchie wrote:

Comal Rajagopalaratnam Muthukumar wrote:. . . I created java prg as under just to get  a style-pattern /specimen sample
that can be developed further . . .

Not in its present state it can't. The formatting is really bad. Please format the whole thing correctly and post it again.

//package mtp;

Hi
Please go through the same code removing the two lines of code shown here below and
write the command to compile and execute the same compiled  code to get the out put as under


  // System.out.println ("Project proj:" + proj.getProject());  (this is to show it has a link with Ant api especially on execution)
      //System.out.println ("Target targ:" + targ.getTarget());  (this is to show it has a link with Ant api especially on execution)
    
ie)

********************************
javac mtp/ChapterAntProjectTestDrive.java
java mtp/ChapterAntProjectTestDrive

**********************************
  output
************************************
<project name="MyTask" base.dir="*.*" default="jar">
</project>
<target name="dist" depends="compile" />
</target>
**********************
As you see the build file so created contains only two lines of out put indicatiing a lot more to be java coded to get full build.xml
Also I mentioned (under the coded note)that this is not a classicalpattern of any type,but it is very raw And not formattedhully  to any  in its state and  meant
for amateured developers only.
They are not to be treated as a regular pattern wih its format.
Thanks
AS
CRMK

[Campbell Ritchie]

Comal Rajagopalaratnam Muthukumar wrote:. . . Please go through the same code removing the two lines  . . .

No, thank you. It is your job to supply decent code, not mine.

And not formattedhully  to any  in its state and  meant
for amateured developers only.
They are not to be treated as a regular pattern wih its format.
Thanks
AS
CRMK

So you are happy to write illegible code?

[Knute Snortum]

Your program really needs to be formatted correctly, I agree with Campbell here.  Besides that, you have a method that looks like a constructor, and you are comparing variables to themselves.

[Comal Rajagopalaratnam Muthukumar]

Knute Snortum wrote:Your program really needs to be formatted correctly, I agree with Campbell here.  Besides that, you have a method that looks like a constructor, and you are comparing variables to themselves.

Hi
This is  the  final modihied prg for your perusal with thanks

Building a buildfile for ant  via java prg programatically using ant api
is rather rare and ant is not to be treated as a programming language
So formating the code was not main crieteria since execution and out put
were given priority while coding
Thanks
As
CRMK

****************

jaca prg
**************
//package mtp;
 
import org.apache.tools.ant.*;
 
 
 public class  ChapterAntProjectTestDrive{
 
      public void ChapterAntProjectTestDrive()
          {
           }
 
  public static void main(String[] args) 
    {
  
 
       ChapterAntProjectTestDrive  proj1=new ChapterAntProjectTestDrive();
   
  
     Project proj = new Project();
            proj.setProject(new Project());
     Target targ = new Target();
            targ.setTarget(new Target());
       System.out.println ("Project proj:" + proj.getProject());
       System.out.println ("Target targ:" + targ.getTarget());
      
   proj.init();
   targ.init();
 } 
 }
   
class Project 
 {
  
                   private Project proj;
                 
                Project getProject(){ return proj;}
                 
                void setProject(Project proj )
                {
                 proj=proj;
                 }
            
            
       void init(){
            
           if ( proj == proj){
           
        
                                   System.out.println("<project name=\"MyTask\" base.dir=\"*.*\" default=\"jar\">");
                                  }
                                   System.out.println("</project>");
                                          
      }
       
                                        
 }
 
  
     class Target{
  
                   private Target targ;
                           
                 public Target getTarget(){ return targ;}
                           
                  public void setTarget(Target  targ )
                     {
                       targ= targ;
                   }
            
   void init(){
           if ( targ == targ){
           
                   System.out.println("<target name=\"dist\" depends=\"compile\" />");
                                 }
                  System.out.println("</target>");
                 }
             }
 ************************            
 buildfile
 ***********************
      Project proj:null
Target targ:null
<project name="MyTask" base.dir="*.*" default="jar">
</project>
<target name="dist" depends="compile" />
</target>
       
             
  
 

 

[Comal Rajagopalaratnam Muthukumar]

Comal Rajagopalaratnam Muthukumar wrote:

Knute Snortum wrote:Your program really needs to be formatted correctly, I agree with Campbell here.  Besides that, you have a method that looks like a constructor, and you are comparing variables to themselves.

Hi
In order to be a a result oriented lines of code as below
I have used File class
Also used less space
for perusal with thanks

As
CRMK

//package mtp;
 import java.io.*; 
 import org.apache.tools.ant.*;
public class  ChapterAntProjectTestDrive{
  public void ChapterAntProjectTestDrive()
          {
           }
 public static void main(String[] args) 
    {
      ChapterAntProjectTestDrive  proj1=new ChapterAntProjectTestDrive();
       Project proj = new Project();
      File buildfile =new File("build.xml");
      proj.setName(new Project());
       proj.setProject(new Project());
      Target targ = new Target();
       proj.init();
 } 
 }
class Project 
 {
  private Project proj;
   Project setName(Project  name)
                   {
                      proj= name;
                      return name;
                   }
  Project getName(){return proj;}
  Project getProject(){ return proj;}
                    
                   void setProject(Project pro )
                  {
                  proj=pro;
                  }
                Project  getProperty(){return proj;}
                Project getLocation(){return proj;}
                public void execute() 
	       	         {
	       	             Project  name = getProperty();
	       	             System.out.println("Welcome to project " + name 
	       	                + " at " + getLocation());
	                    }
             void init(){
              if ( proj == proj){               System.out.println("build.xml"+"  ");
                                             System.out.println("<project name=\"MyTask\" base.dir=\"*.*\" default=\"jar\">");
                                             System.out.println("<target name=\"main\" depends=\"jar\" />");
                                             System.out.println("<taskdef name=\"Project\" classname=\"Project\" classpath=\"project.jar\" />");
					     System.out.println("</target>");
                                             System.out.println("</project>");
                             }
                             }
                   class Target extends Project{
                      private Target targ;
                     public Target setName(Target name){
                    targ=name;
                    return  name;
                    }
		  public Target getTarget(){ return targ;}
                  public void setTarget(Target  targy )
                     {
                       targ= targy;
                           }
                   
               class  File {
                                 File buildfile;
                 }
                    void init(){
           if ( targ == targ){
          }
             }
             }
             }

***************
 build.xml
<project name="MyTask" base.dir="*.*" default="jar">
<target name="main" depends="jar" />
<taskdef name="Project" classname="Project" classpath="project.jar" />
</target>
</project>
**************

[Comal Rajagopalaratnam Muthukumar]

   Hi
    Though the java prg shown below is supposed to give buildfile
    but it only compiles ok
    So in order to validate this java prog
    the build.xml (manually made) is used
    It shows ok and build a jar file
    So if any one is able to edit further     this java program
    to render build.xml
    it is appreciatd with thanks
    As
    CRMK

***********************************

java prg
**********************************
import org.apache.tools.ant.*;
import java.io.*; 
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Target;
import org.apache.tools.ant.Task;
 import org.apache.tools.ant.taskdefs.Execute;
 import org.apache.tools.ant.taskdefs.Taskdef;
import org.apache.tools.ant.Main;
public class MyTask extends Task{
 
    private String myArg;
    private Project proj;
    private Target target;
 
    // called to initialize the task
  // @Override
    public void init() throws BuildException {
        proj = getProject();
        target = getOwningTarget();
    //   proj.init();
    }
 
    // called to execute the task
   // @Override
    public void execute() throws BuildException {
        log("target name: " + target.getName());
       log("value of property 'name' = " + proj.getProperty("name"));
        log("task name: " + getTaskName());
        log("value of task parameter 'myArg' = " + myArg);
    }
 
    // called to set task parameters; in this case "myArg"
    public  void setMyArg (String _myArg) {
        this.myArg = _myArg;
    }
    
  public static void main(String args[])
  {
   
   MyTask mp =new MyTask();
   }   
     
 }
**************************************************
hand nade build file to validate the java prg
***************************************************
<?xml version="1.0"?>
<project default="dist" name="mtp3">
<description>Class</description>
<property name="ClassFiles" location="C:\Program Files\java\jdk1.8.0_101\bin\mtp3" />
<property name="mainClassFiles" location="C:\Program Files\java\jdk1.8.0_101\bin\mtp3" />
<property name="buildDir" location=".\build" />
<property name="distDir" location=".\dist" />
<property name="mainDir" location="C:\Program Files\apache-ant-1.10.1\bin" />
<target name="init">
        <tstamp/>
        <mkdir dir="${buildDir}"/>
        <mkdir dir="${distDir}"/>
</target>
<target name="dist" depends="init">
    <jar destfile="${distDir}/package${DSTAMP}.jar" basedir="${ClassFiles}"/>
    <jar destfile="${distDir}/package-web-${DSTAMP}.jar" basedir="${ClassFiles}"/>
        <java Classname="MyTask">
         <classpath>
           <pathelement location="${mainDir}"/>
		   <pathelement path="${ClassFiles}"/>
		   <pathelement path="${Main}"/>

		   
         </classpath>
   </java>
    </target>
</project>
*************************************
Succesfully builds jar file thus valdating its okness

**************************************
C:\Program Files\apache-ant-1.10.1\bin>ant
Buildfile: C:\Program Files\apache-ant-1.10.1\bin\build.xml

init:
    [mkdir] Created dir: C:\Program Files\apache-ant-1.10.1\bin\dist

dist:
      [jar] Building jar: C:\Program Files\apache-ant-1.10.1\bin\dist\package201
70724.jar
      [jar] Building jar: C:\Program Files\apache-ant-1.10.1\bin\dist\package-we
b-20170724.jar

BUILD SUCCESSFUL
Total time: 2 seconds

[Comal Rajagopalaratnam Muthukumar]

Campbell Ritchie wrote:

Comal Rajagopalaratnam Muthukumar wrote:. . . I created java prg as under just to get  a style-pattern /specimen sample
that can be developed further . . .

Not in its present state it can't. The formatting is really bad. Please format the whole thing correctly and post it again.

Hi
 
  So far we discussed about build file using java prg .
  Though the programtic attempt ended with  formaating error
  Also no further try/edit  was made by any one!Hence inplace of build.xml
   a new way to explore  ant build script file which were meticulaosly
  coded with formating in particular But even here result is rather not so clear since the Null pointer
  exception prevails proving that it is quite monumental.
  In the event of making it successfull, i shall remain thankful
 
  This is for your perusal with thanks
  As
  CRMK
 

import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.taskdefs.Java;
import org.apache.tools.ant.types.Environment;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.*;

import java.io.*;
import java.util.*;

public class TDSSTask extends org.apache.tools.ant.Task{

	 private String TDSSDir = null;
            private boolean displayoutput = false;
	 private boolean verbose = true;
	 private String outputfile = "";
          private Path path, classpath;
          
          private File file;
  private ArrayList nodes = new ArrayList();


  public void setTDSSDir(String TDSSDir) {
    this.TDSSDir = TDSSDir;
  }


  public void setVerbose (boolean verbose) {
    this.verbose = verbose ;
  }


  public void setDisplayoutput (boolean displayoutput) {
    this.displayoutput = displayoutput ;
  }

  public void setOutputfile (boolean outputfile) {
    //this.outputfile = outputfile ;
    
    return;
  }

  public void setClasspath(Path classpath) {
    this.classpath = classpath;
  }

  public void setClasspathRef(Reference ref) {
 
    // void setRefid(ref);
     
     return ;
  }


  public void execute() throws BuildException {
    try {

          FileOutputStream fo;// = null;
          ObjectOutputStream oo;// = null;
          try {
            fo = new FileOutputStream(TDSSDir + "/nodes.txt"); 
            oo = new ObjectOutputStream(fo);
            oo.writeObject(nodes);
            oo.close();
            fo.close();
          } catch(Exception fileE) {
          }  

    Java javaTask = new Java();

    javaTask = (Java) getProject().createTask("java");
    javaTask.setTaskName(getTaskName());
    javaTask.setClassname("com.company.application.TDSSLauncher");

    javaTask.setClasspath(classpath);

    // Add command-line arguments
    javaTask.createArg().setValue("-h");
    javaTask.createArg().setFile(file);

    if (outputfile != null) {
      javaTask.createArg().setValue("-o");
      javaTask.createArg().setFile(file);
    }

    if (displayoutput) {
      javaTask.createArg().setValue("-d");
    }

    if (verbose) {
      javaTask.createArg().setValue("-v");
    }

    javaTask.setFork(true);
    
    if (javaTask.executeJava() != 0) {
      
      throw new BuildException("Error from launching BattleRunner");
      
      
               }


	   } catch (Exception e) {
       throw new BuildException(e);
    }
 }


 private boolean includeNode(Node node) {

    String ifProperty = node.getIf();
    Project p = getProject();

    if (ifProperty != null && p.getProperty(ifProperty) == null) {
      return false;
    }

    return true;
 }


 static class Node implements Serializable {

private int id = 0;
private String username;
private String password;
private int popularity = 0;
private boolean raid = false;
private String ifProperty;

public void setID(int id) {
  this.id = id;
}

public void setUsername(String username) {
  this.username = username;
}

public void setPassword(String password) {
  this.password = password;
}

public void setPopularity(int popularity) {
  this.popularity = popularity;
}

public void setRaid(boolean raid) {
  this.raid = raid;
}

public void setIf(String ifProperty) {
  this.ifProperty = ifProperty;
}

public int getID() {
  return id;
}

public String getUsername() {
  return username;
}

public String getPassword() {
  return password;
}

public int getPopularity() {
  return popularity;
}

public boolean getRaid() {
  return raid;
}

public String getIf() {
  return ifProperty;
}

    }
    
    public static void main(String[] arg)
    {
    
      TDSSTask  tdsstask = new TDSSTask();
      
      Node node=new Node();
      
  
      try{
      
       node.getUsername();  
               node.getPassword();

       System.out.println("password"+"");
   
      
      tdsstask.execute();
      
      
      }
      catch(Exception e)
      {
      e.printStackTrace();
      
      
      
      }
    
    
    }
    
  }
  password
  java.lang.NullPointerException
          at TDSSTask.execute(TDSSTask.java:111)
          at TDSSTask.main(TDSSTask.java:204)
  --- Nested Exception ---
  java.lang.NullPointerException
          at TDSSTask.execute(TDSSTask.java:77)
          at TDSSTask.main(TDSSTask.java:204)

 

[Comal Rajagopalaratnam Muthukumar]

Tim Moores wrote:I guess it's too late now, but https://coderanch.com/wiki/660363/Ant-Task contains a simple Ant task written in Java.

The lesson might be to search the FAQ before asking questions

Better late than nevever, but who will bell the cat!!!

Hi
The ant build file is helpless inspite of all the precautions duly
adhered thus leaving for any body who can give some shape
to make the java prog execute its task.to offer my bonus
Thanks

The details are as under viz., buildfile,java prg and the succesful out put

with a minute error


As
CRMK

package org.apache.tools.ant;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Target;
 import org.apache.tools.ant.Task;
 import org.apache.tools.ant.*;

public class MyTask extends Task {
 
    private String myArg;
    private Project proj;
    private Target target;
 
    // called to initialize the task
    @Override
    public void init() throws BuildException {
        proj = getProject();
        target = getOwningTarget();
        proj.log("MyTask init");
    }
 
    // called to execute the task
    @Override
    public void execute() throws BuildException {
        log("target name: " + target.getName());
        log("value of property 'name' = " + proj.getProperty("name"));
        log("task name: " + getTaskName());
        log("value of task parameter 'myArg' = " + myArg);
    }
 
    // called to set task parameters; in this case "myArg"
    public void setMyArg (String _myArg) {
        this.myArg = _myArg;
    }
      }
      
      ************************************************************************
<?xml version="1.0" ?>
<project default="main">

    <property name="src" location="source" />
    <property name="output" location="bin" />
    <property environment="env" />

    <target name="main" depends="init, compile, run">
        <echo>
            Building and running....
        </echo>
    </target>
  
    <target name="init">
        <mkdir dir="${output}" />
    </target>
  
    <target name="compile">
        <javac srcdir="${src}" destdir="${output}" />
    </target>
  
    <target name="run">
        <java classname="src MyTask"
            fork="yes" failonerror="false">
            <classpath>
               <pathelement location="${output}"/>
            </classpath>
           <arg value="MyTask" /> 
        </java>
    </target>
</project>

*****************************************************************************
C:\Program Files\apache-ant-1.10.1\bin\antcode\ch07\java>ant
Buildfile: C:\Program Files\apache-ant-1.10.1\bin\antcode\ch07\java\build.xml

init:

compile:
    [javac] C:\Program Files\apache-ant-1.10.1\bin\antcode\ch07\java\build.xml:1
9: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=la
st; set to false for repeatable builds
    [javac] Compiling 1 source file to C:\Program Files\apache-ant-1.10.1\bin\an
tcode\ch07\java\bin

run:
     [java] Error: Could not find or load main class src MyTask
     [java] Java Result: 1

main:
     [echo]
     [echo]             Building and running....
     [echo]
BUILD SUCCESSFUL
Total time: 1 second
***********************************************************************************