com.genexus.GXDbFile Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of gxandroid Show documentation
Core classes for the runtime used by Java and Android apps generated with GeneXus
There is a newer version: 4.7.0
package com.genexus;

import com.genexus.internet.HttpContext;

import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class GXDbFile
{
	public static String getScheme()
	{
		return "gxdbfile";
	}

	public static String getMultimediaDirectory()
	{
		return "multimedia";
	}

	private static Pattern schemeRegex = Pattern.compile("(^" + getScheme() + ":)(.+)");

	public static String getFileName(String uri)
	{
		try
		{
			return CommonUtil.getFileName(uri);
		}
		catch (Exception e)		
		{
			System.err.println("Bad File URI " + uri + " : " + e.getMessage());
			return uri;
		}
	}
	
	public static String getFileType(String uri)
	{
		try
		{
			return CommonUtil.getFileType(uri);
		}
		catch (Exception e)		
		{
			System.err.println("Bad File URI " + uri + " : " + e.getMessage());
			return uri;
		}
	}

	public static String addTokenToFileName(String name, String type)
	{
		if (name.trim().length() == 0)
			return "";
		String guid = java.util.UUID.randomUUID().toString().replaceAll("-", "");
		return name + "_" + guid + (type.trim().length() == 0 ? "" : ".") + type;
	}

	public static String removeTokenFromFileName(String fileName)
	{
		if (fileName.trim().length() == 0)
			return "";

		String name = getFileName(fileName);
		String type = getFileType(fileName);
		String cleanName = name;
		int sepIdx = name.lastIndexOf('_');
		if (sepIdx > 0)
		{
			cleanName = name.substring(0, sepIdx); 
		}

		return (type.trim().length() == 0) ? cleanName : cleanName + "." + type;
	}

	public static String getFileNameFromUri(String uriString)
	{
		if (uriString.trim().length() == 0)
			return "";

		Matcher matcher = schemeRegex.matcher(uriString);
		if (matcher.matches())
			return matcher.group(2);
		
		return uriString;
	}

	public static String resolveUri(String uriString)
	{
		if (uriString.trim().length() == 0)
			return "";

			
		Matcher matcher = schemeRegex.matcher(uriString);
		if (matcher.matches())
		{
			String fileName = matcher.group(2);
			File file = new File(Preferences.getDefaultPreferences().getMultimediaPath(), fileName);
			return pathToUrl(file.getPath());
		}

		return uriString;
	}
	
	public static String generateUri(String file, Boolean addToken)
	{
		return GXDbFile.getScheme() + ":" + (addToken ? GXDbFile.addTokenToFileName(GXDbFile.getFileName(file), GXDbFile.getFileType(file)) : file);
	}

	public static String getNameFromURL(String uri)
	{
		return getFileName(uri) + "." + getFileType(uri);
	}
	
	public static boolean isFileExternal(String uriString)
	{
		if (uriString == null || uriString.trim().length() == 0)
			return true;

		if (schemeRegex.matcher(uriString).matches())
			return false;
		
		return true;
	}

	private static String getUriFromFile(String name, String type)
	{
		String cleanName = name.trim();
		String cleanType = type.trim();
		return (cleanName.length() == 0 ? "multimedia-file" : cleanName) + "." + (cleanType.length() == 0 ? "tmp" : cleanType);
	}
	
	public static String getUriFromFile(String name, String type, String path)
	{
		if (name.length() == 0 && type.length() == 0 && path.length() != 0)
		{
			String fromPathType = getFileType(path);
			if (fromPathType.length() != 0 && !fromPathType.equals("tmp"))
			{
				return new File(path).getName();
			}
		}
		return getUriFromFile(name, type);
	}
	
	public static String getUrlFromUri(String blob, String uri)
	{
		return (blob.trim().length() == 0) ? uri : "";
	}
	public static String pathToUrl(String path, IHttpContext webContext)
	{
		if (path.startsWith("http:") || path.startsWith("https:"))
			return path;

		if (((HttpContext)webContext).getHttpRequest() == null)
		{
			try
			{
				File file = new File(path);
				return file.toURL().toString();
			}
			catch (Exception e)
			{
			}
			
			return path;
		}

		return ((HttpContext)webContext).getResource(webContext.convertURL(path));
	}
	
	public static String pathToUrl(String path)
	{
		ModelContext context = ModelContext.getModelContext();
		return pathToUrl(path, context.getHttpContext());
	}
	
	public static String getDbFileFullUri(String gxdbFileUri) 
	{
		return com.genexus.db.driver.GXResultSet.getDbFileFullUri(gxdbFileUri);
	}
}