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brianR |
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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.FileFilter;
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import java.util.ArrayList;
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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.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 net.brutex.xservices.types.FileInfoType;
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/**
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* @author Brian Rosenberger
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*
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*/
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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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boolean withFiles, int level, String search, int count, int page) {
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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 > 3) level = 3;
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if(!withDir && !withFiles) withFiles = true;
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String cachekey = level +"||"+ withFiles +"||"+ withDir +"||" + search + "||" + dir;
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try {
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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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if(list == null) {
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list = setDirectory(dir, withDir, withFiles, level, search);
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jcs.put(cachekey, list);
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System.out.println("Stored in Cache: " + list.toString());
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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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int fromIndex = 0;
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int toIndex = 0;
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fromIndex = (page-1) * count;
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toIndex = (page*count);
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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<List<FileInfoType>> sublist = new GenericEntity<List<FileInfoType>>(list.subList(fromIndex, toIndex) ){};
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return Response.ok( sublist ).build();
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} catch (CacheException e) {
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Response.serverError().build();
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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, final boolean withDirectories, final boolean withFiles, final int depth, final String search) {
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if(depth <=0) return;
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File[] files = dir.listFiles(new FileFilter() {
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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(search == null || search.equals("")) return true;
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if(!pathname.getAbsolutePath().contains(search)) return false;
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return true;
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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(files==null) return;
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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( (withDirectories && e.isDirectory())
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|| (withFiles && e.isFile()) ) {
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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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private List<FileInfoType> setDirectory(String dir, final boolean withDirectories, final boolean withFiles, int depth, String search) {
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List<FileInfoType> list = new ArrayList<FileInfoType>();
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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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}
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