Package com.sun.enterprise.server

Source Code of com.sun.enterprise.server.TargetFileFilter

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package com.sun.enterprise.server;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.jar.Attributes;

import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.logging.LogDomains;

import com.sun.enterprise.server.ManagerFactory;
import com.sun.enterprise.server.ApplicationManager;
import com.sun.enterprise.server.StandAloneConnectorModulesManager;
import com.sun.enterprise.server.StandAloneEJBModulesManager;
import com.sun.enterprise.deployment.autodeploy.AutoDeployConstants;
import com.sun.enterprise.deployment.autodeploy.AutoDeployDirectoryScanner;

/**
* SystemAppScanner takes the system directory and scans the archives based on
* Application-Type specified in the manifest file of archive.
* TargetFileFilter filters the archives based on the targetType and
* Application-Type
* @author Sandhya E
*/

public class SystemAppScanner extends AutoDeployDirectoryScanner {

    private String targetType;
 
    public SystemAppScanner(String targetType){
        this.targetType = targetType;
    }
   
    protected File[] getListOfFiles(File dir, boolean includeSubDir) {
        return dir.listFiles(new TargetFileFilter(targetType));
    }
   
}

class TargetFileFilter implements  FileFilter{
    private static final Logger sLogger= LogDomains.getLogger(LogDomains.CORE_LOGGER);
   
    String targetType = null;
   
    TargetFileFilter(String targetType){
        this.targetType = targetType;   
    }
   
  
   
    /**
     * Accept method implementation of FileFilter, specific for app/modules,/br>
     *its not a directory/br>
     *write/read permission is provided </br>
     *valid name </br>
     *valid type(ear/jar/war/rar etc) </br>
     *
     */       
    public boolean accept(File f){
        boolean flag=false;
        String name= f.getName();       
        String fileType = null;
        int lastIndex=-1;
       
        if(name !=null && name.length() >0){
            lastIndex = name.lastIndexOf('.');
            try{
                if (lastIndex >= 0)
                    fileType = name.substring(lastIndex + 1);
                if(!f.isDirectory() && f.canRead())
        {
                    name=name.substring(0,lastIndex); //valid name               
                    if(name !=null && name.length() >0)
                       flag=true;
                }
            }catch(SecurityException se){
                sLogger.log(Level.WARNING, "SecurityException occured while accessing :" +f.getName());
                //ignore the file, and lets just not accept its as deployable component file
            }catch(Exception e){
                sLogger.log(Level.WARNING, "Exception occured while accessing :" +f.getName());
                //ignore the file, and lets just not accept its as deployable component file
            }
        }
        if(flag && isApplicableToTarget(f) && !(isRegistered(name,fileType))) {
            sLogger.log(Level.FINE,"Selecting file ["+ f.getAbsolutePath()+"] for autodeployment");
            return true;
        }else
            return false;
       
    }

  private boolean isApplicableToTarget(File f) {
            JarFile j = null;
      try{
        j = new JarFile(f);
        Manifest m = j.getManifest();
        Attributes a = m.getMainAttributes();
        String appType = a.getValue(Constants.APPLICATION_TYPE);
      if(appType == null) appType = Constants.USER;
      if(targetType.equals(Constants.TARGET_TYPE_ADMIN)){
          if(appType.equals(Constants.SYSTEM_ADMIN) || appType.equals(Constants.SYSTEM_ALL))
            return true;
        else
            return false;
      }else if(targetType.equals(Constants.TARGET_TYPE_INSTANCE)){
          if(appType.equals(Constants.SYSTEM_INSTANCE) || appType.equals(Constants.SYSTEM_ALL))
            return true;
        else
            return false;
      }
      return false;
    }catch(Exception e) {
        sLogger.log(Level.WARNING, "Exception occured while accessing :" +f.getName());
      return false;
    } finally {
                    if (j != null) {
                        try {
                            j.close();
                        } catch (IOException ioe) {
                            sLogger.log(Level.WARNING, "Error closing jar file after checking for autodeploy", ioe);
                        }
                    }
                }
  }

        /**
         * Checks if an app is registered. Takes the registration
         * name and type of the archive
         * Type of the archive is ear/war/jar/rar
         * @return true if app is registered
         **/
        private boolean isRegistered(String name, String type)
        {
            try{
           
                if(type.equals(AutoDeployConstants.EAR_EXTENSION)) {
               
                    ApplicationManager amgr =
                                ManagerFactory.getApplicationManager();
                    return amgr.isRegistered(name);
                   
                }else if(type.equals(AutoDeployConstants.JAR_EXTENSION)) {
               
                    StandAloneEJBModulesManager emgr =
                                ManagerFactory.getSAEJBModulesManager();
                    return emgr.isRegistered(name);
                   
                }else if(type.equals(AutoDeployConstants.RAR_EXTENSION)) {
               
                    StandAloneConnectorModulesManager cmgr =
                                ManagerFactory.getSAConnectorModulesManager();
                    return cmgr.isRegistered(name);
                   
                }else if(type.equals(AutoDeployConstants.WAR_EXTENSION)) {
                }  
               
            }catch(Exception e){
                sLogger.log(Level.FINE, "error_occured_in_isreg",e);
            }  
            return false;
        }  

}
        
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