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package net.brutex.xservices.ws.rs;
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package net.brutex.xservices.ws.rs;
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import java.io.File;
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import java.io.File;
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import java.io.FileFilter;
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import java.lang.reflect.Method;
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import java.io.FileFilter;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.List;
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import javax.ws.rs.core.GenericEntity;
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import javax.ws.rs.core.GenericEntity;
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import javax.ws.rs.core.HttpHeaders;
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import javax.ws.rs.core.HttpHeaders;
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import javax.ws.rs.core.Response;
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import org.apache.jcs.JCS;
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import org.apache.jcs.access.exception.CacheException;
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import javax.ws.rs.core.Response;
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import net.brutex.xservices.security.StandardSecurityManager;
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import net.brutex.xservices.security.StandardSecurityManager;
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import net.brutex.xservices.security.UserIdentity;
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import net.brutex.xservices.security.UserIdentity;
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import net.brutex.xservices.types.FileInfoType;
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import org.apache.jcs.JCS;
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import net.brutex.xservices.types.FileInfoType;
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import org.apache.jcs.access.exception.CacheException;
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/**
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/**
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 * @author Brian Rosenberger
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 * @author Brian Rosenberger, bru(at)brutex.de
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 *
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 *
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 */
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 */
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public class FileInfoImpl implements FileInfo {
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public class FileInfoImpl  implements FileInfo
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	public Response getFiles(HttpHeaders h, String dir, boolean withDir,
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{
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			boolean withFiles, int level, String search, int count, int page) {
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  public Response getFiles(HttpHeaders h, String dir, boolean withDir, boolean withFiles, int level, String search, int count, int page)
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  {
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		StandardSecurityManager sec = new StandardSecurityManager();
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		UserIdentity id = new UserIdentity();
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    StandardSecurityManager sec = new StandardSecurityManager();
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    UserIdentity id = new UserIdentity();
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		if( ! sec.canExecute(Thread.currentThread().getStackTrace()[1].getMethodName(), id)) {
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    if (!sec.canExecute(java.lang.Thread.currentThread().getStackTrace()[1].getMethodName(), id)) {
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			return null;
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		}
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      return null;
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    }
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		System.out.println("Listing directory: " + dir);
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    System.out.println("Listing directory: " + dir);
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		if(level <= 0) level = 1;
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    if (level <= 0) level = 1;
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		if(level > 3) level = 3;
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    if (level > 3) level = 3;
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		if(!withDir && !withFiles) withFiles = true;
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    if ((!withDir) && (!withFiles)) withFiles = true;
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		String cachekey = level +"||"+ withFiles +"||"+ withDir +"||" + search + "||" + dir;
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    String cachekey = level + "||" + withFiles + "||" + withDir + "||" + search + "||" + dir;
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		try {
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    try {
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			JCS jcs = JCS.getInstance("FileCache");
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      JCS jcs = JCS.getInstance("FileCache");
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		List<FileInfoType> list = (List<FileInfoType>) jcs.get(cachekey);
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      List list = (List)jcs.get(cachekey);
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		if(list == null) {
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      if (list == null) {
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			list = setDirectory(dir, withDir, withFiles, level, search);
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        list = setDirectory(dir, withDir, withFiles, level, search);
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			jcs.put(cachekey, list);
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        jcs.put(cachekey, list);
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			System.out.println("Stored in Cache: " + list.toString());
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        System.out.println("Stored in Cache: " + list.toString());
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		} else {
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      } else {
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			System.out.println("Got from Cache: " + list.toString());
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		}
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        System.out.println("Got from Cache: " + list.toString());
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      }
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		int fromIndex = 0;
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      int fromIndex = 0;
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		int toIndex = 0;
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      int toIndex = 0;
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		fromIndex = (page-1) * count;
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      fromIndex = (page - 1) * count;
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		toIndex = (page*count);
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      toIndex = page * count;
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		if(toIndex>list.size()) toIndex = list.size();
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      if (toIndex > list.size()) toIndex = list.size();
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      if (fromIndex > toIndex) fromIndex = toIndex;
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      GenericEntity sublist = new GenericEntity(list.subList(fromIndex, toIndex))
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		if(fromIndex>toIndex) fromIndex=toIndex;
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      {
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		GenericEntity<List<FileInfoType>> sublist = new GenericEntity<List<FileInfoType>>(list.subList(fromIndex, toIndex) ){};
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      };
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		return Response.ok( sublist ).build();
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      return Response.ok(sublist).build();
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		} catch (CacheException e) {
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    } catch (CacheException e) {
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			Response.serverError().build();
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      Response.serverError().build();
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		}
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    }
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		return null;
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	}
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    return null;
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  }
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  private void setDirectory(List<FileInfoType> list, File dir, boolean withDirectories, boolean withFiles, final int depth, final String search)
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	private void setDirectory(List<FileInfoType> list, File dir, final boolean withDirectories, final boolean withFiles, final int depth, final String search) {
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  {
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		if(depth <=0) return;
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    if (depth <= 0) return;
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		File[] files = dir.listFiles(new FileFilter() {
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    File[] files = dir.listFiles(new FileFilter()
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    {
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			public boolean accept(File pathname) {
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      public boolean accept(File pathname) {
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				if(pathname.isDirectory() && depth > 1) return true;
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        if ((pathname.isDirectory()) && (depth > 1)) return true;
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				if(search == null || search.equals("")) return true;
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        if ((search == null) || (search.equals(""))) return true;
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				if(!pathname.getAbsolutePath().contains(search)) return false;
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        if (!pathname.getAbsolutePath().contains(search)) return false;
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				return true;
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        return true;
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			}
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      }
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		});
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    });
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		if(dir.getParentFile() != null && withDirectories==true) 	list.add(new FileInfoType(dir.getParentFile()));
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    if ((dir.getParentFile() != null) && (withDirectories)) list.add(new FileInfoType(dir.getParentFile()));
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		if(files==null) return;
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    if (files == null) return;
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		for( File e : files) {
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    for (File e : files) {
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			if(e.isDirectory()) setDirectory(list, e, withDirectories, withFiles, depth-1, search);
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      if (e.isDirectory()) setDirectory(list, e, withDirectories, withFiles, depth - 1, search);
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			if( (withDirectories && e.isDirectory())
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      if (((withDirectories) && (e.isDirectory())) || (
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					|| (withFiles && e.isFile()) ) {
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        (withFiles) && (e.isFile())))
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				list.add(new FileInfoType(e));
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        list.add(new FileInfoType(e));
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			}
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		}
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    }
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	}
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  }
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  private List<FileInfoType> setDirectory(String dir, boolean withDirectories, boolean withFiles, int depth, String search)
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	private List<FileInfoType> setDirectory(String dir, final boolean withDirectories, final boolean withFiles, int depth, String search) {
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  {
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		List<FileInfoType> list = new ArrayList<FileInfoType>();
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    List list = new ArrayList();
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		setDirectory( list, (new File(dir)), withDirectories, withFiles, depth, search);
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    setDirectory(list, new File(dir), withDirectories, withFiles, depth, search);
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		return list;
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	}
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    return list;
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  }