FileSystemTextDataControler.java

package com.akjava.gwt.lib.client.experimental;

import static com.google.common.base.Preconditions.checkNotNull;

import com.akjava.gwt.html5.client.file.Blob;
import com.akjava.gwt.html5.client.file.FileIOUtils;
import com.akjava.gwt.html5.client.file.FileIOUtils.MakeDirectoryCallback;
import com.akjava.gwt.html5.client.file.FileIOUtils.ReadStringCallback;
import com.akjava.gwt.html5.client.file.FileIOUtils.RemoveCallback;
import com.akjava.gwt.html5.client.file.FileIOUtils.WriteCallback;
import com.akjava.lib.common.utils.FileNames;
import com.akjava.lib.common.utils.StringUtils;
import com.google.gwt.user.client.Window;

public class FileSystemTextDataControler{

	private String rootDirectory;
	
	public FileSystemTextDataControler(String rootDirectory){
		checkNotNull(rootDirectory);
		if(rootDirectory.endsWith("/")){
			rootDirectory=StringUtils.chomp(rootDirectory);//
		}
		this.rootDirectory=rootDirectory;
	}
	
	public void initialize(MakeDirectoryCallback callback){
		checkNotNull(callback);
		FileIOUtils.makeDirectory(true, rootDirectory, callback);
	}
	
	public void addDirectory(MakeDirectoryCallback callback){
		checkNotNull(callback);
		long t=System.currentTimeMillis();
		FileIOUtils.makeDirectory(true, rootDirectory+"/"+t, callback);
	}
	
	public void makeDirectory(String dirName,MakeDirectoryCallback callback){
		checkNotNull(callback);
		long t=System.currentTimeMillis();
		FileIOUtils.makeDirectory(true, rootDirectory+"/"+dirName, callback);
	}
	
	public void getDirectory(String name,MakeDirectoryCallback callback){
		checkNotNull(callback);
		checkNotNull(name);
		FileIOUtils.getDirectory(true, rootDirectory+"/"+name, callback);
	}
	
	public void addData(String text,WriteCallback callback){
		checkNotNull(text);
		checkNotNull(callback);
		long t=System.currentTimeMillis();
		FileIOUtils.writeFile(true, rootDirectory+"/"+t, text, callback,false);
	}
	
	public void updateData(long time,String text,WriteCallback callback){
		checkNotNull(text);
		checkNotNull(callback);
		FileIOUtils.writeFile(true, rootDirectory+"/"+time, text, callback,false);
	}
	
	public void updateData(String fileName,String text,WriteCallback callback){
		checkNotNull(text);
		checkNotNull(callback);
		checkNotNull(fileName);
		FileIOUtils.writeFile(true, rootDirectory+"/"+fileName, text, callback,false);
	}
	public void updateData(String fileName,Blob blob,WriteCallback callback){
		checkNotNull(blob);
		checkNotNull(callback);
		checkNotNull(fileName);
		FileIOUtils.writeFile(true, rootDirectory+"/"+fileName, blob, callback);
	}
	
	public void removeData(long time,RemoveCallback callback){
		checkNotNull(callback);
		FileIOUtils.removeFile(true, rootDirectory+"/"+time, callback);
	}
	public void removeData(String fileName,RemoveCallback callback){
		checkNotNull(callback,"callback is null");
		checkNotNull(fileName,"filename is null");
		FileIOUtils.removeFile(true, rootDirectory+"/"+fileName, callback);
	}
	
	public void removeDirectory(String fileName,RemoveCallback callback){
		checkNotNull(callback);
		checkNotNull(fileName);
		FileIOUtils.removeDirectoryRecursively(true, rootDirectory+"/"+fileName, callback);
	}
	
	public String getFilePath(String path){
		checkNotNull(path);
		return rootDirectory+"/"+FileNames.removeStartWithSeparator(path, '/');
	}
	public void readText(String fileName,ReadStringCallback callback){
		checkNotNull(fileName);
		checkNotNull(callback);
		FileIOUtils.readFileAsString(true, rootDirectory+"/"+FileNames.removeStartWithSeparator(fileName, '/'), callback);
	}
	
	public void writeText(String fileName,String text,WriteCallback callback){
		checkNotNull(fileName);
		checkNotNull(callback);
		FileIOUtils.writeFile(true, rootDirectory+"/"+FileNames.removeStartWithSeparator(fileName, '/'), text, callback,false);
	}
	
	public String getRootPersistentUrl(){
		String url="filesystem:"+Window.Location.getProtocol()+"//"+Window.Location.getHost()+"/persistent/";
		return url;
	}
	
	public String getRootTemporalytUrl(){
		String url="filesystem:"+Window.Location.getProtocol()+"//"+Window.Location.getHost()+"/temporary/";
		return url;
	}
	
	public String getUrl(String path){
		return getRootPersistentUrl()+getFilePath(path);
	}
}