Android Open Source - dejalist Cache Manager






From Project

Back to project page dejalist.

License

The source code is released under:

Apache License

If you think the Android project dejalist listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.luboganev.dejalist.data;
/*w ww.  ja va2s  . co m*/
import java.io.File;
import java.io.IOException;
import java.io.InputStream;

import android.content.Context;

public class CacheManager {

    private static final long MAX_SIZE = 1000000L; // <1MB

    private CacheManager() {

    }

    public static File cacheData(Context context, File source) throws IOException {

        File cacheDir = context.getExternalCacheDir();
        long size = getDirSize(cacheDir);
        long newSize = source.length() + size;

        if (newSize > MAX_SIZE) {
            cleanDir(cacheDir, newSize - MAX_SIZE);
        }

        File file = new File(cacheDir, source.getName());
        if(file.getPath().equals(source.getPath())) {
          return file;
        }
        else {
          if(file.exists()) file.delete();
          file.createNewFile();
          if(ProductImageFileHelper.copy(source, file)) return file;
          else return null;
        }
    }
    
    public static File cacheData(Context context, InputStream is, String cachedFileName) throws IOException {
      File cacheDir = context.getExternalCacheDir();
      if (getDirSize(cacheDir) > MAX_SIZE) {
        cleanDir(cacheDir, MAX_SIZE);
      }
      
      File file = new File(cacheDir, cachedFileName);
    if(file.exists()) file.delete();
       file.createNewFile();
       
    if(ProductImageFileHelper.copy(is, file)) return file;
    else return null;
    }

    public static File retrieveData(Context context, String name) throws IOException {

        File cacheDir = context.getExternalCacheDir();
        File file = new File(cacheDir, name);

        if (!file.exists()) {
            // File doesn't exist
            return null;
        }

        return file;
    }

    private static void cleanDir(File dir, long bytes) {

        long bytesDeleted = 0;
        File[] files = dir.listFiles();

        for (File file : files) {
            bytesDeleted += file.length();
            file.delete();

            if (bytesDeleted >= bytes) {
                break;
            }
        }
    }

    private static long getDirSize(File dir) {

        long size = 0;
        File[] files = dir.listFiles();

        for (File file : files) {
            if (file.isFile()) {
                size += file.length();
            }
        }

        return size;
    }
}




Java Source Code List

com.larswerkman.colorpicker.ColorPicker.java
com.larswerkman.colorpicker.OpacityBar.java
com.larswerkman.colorpicker.SVBar.java
com.larswerkman.colorpicker.SaturationBar.java
com.larswerkman.colorpicker.ValueBar.java
com.luboganev.dejalist.Utils.java
com.luboganev.dejalist.crop.CropActivity.java
com.luboganev.dejalist.crop.CropDialogSave.java
com.luboganev.dejalist.crop.CropHighlightView.java
com.luboganev.dejalist.crop.CropUtils.java
com.luboganev.dejalist.crop.CropView.java
com.luboganev.dejalist.crop.ImageViewTouchBase.java
com.luboganev.dejalist.crop.RotateBitmap.java
com.luboganev.dejalist.data.BackupIntentService.java
com.luboganev.dejalist.data.CacheManager.java
com.luboganev.dejalist.data.DejalistContract.java
com.luboganev.dejalist.data.DejalistDatabase.java
com.luboganev.dejalist.data.DejalistProvider.java
com.luboganev.dejalist.data.ProductImageFileHelper.java
com.luboganev.dejalist.data.SelectionBuilder.java
com.luboganev.dejalist.data.entities.Category.java
com.luboganev.dejalist.data.entities.Product.java
com.luboganev.dejalist.ui.AboutActivity.java
com.luboganev.dejalist.ui.CategoriesListCursorAdapter$ViewHolder$$ViewInjector.java
com.luboganev.dejalist.ui.CategoriesListCursorAdapter.java
com.luboganev.dejalist.ui.CategoryDialogFragment$$ViewInjector.java
com.luboganev.dejalist.ui.CategoryDialogFragment.java
com.luboganev.dejalist.ui.CheckableRelativeLayout.java
com.luboganev.dejalist.ui.ChecklistActionTaker.java
com.luboganev.dejalist.ui.ChecklistController.java
com.luboganev.dejalist.ui.ChecklistCursorAdapter$ViewHolder$$ViewInjector.java
com.luboganev.dejalist.ui.ChecklistCursorAdapter.java
com.luboganev.dejalist.ui.ChecklistFragment$$ViewInjector.java
com.luboganev.dejalist.ui.ChecklistFragment.java
com.luboganev.dejalist.ui.ConfirmBackResDialogFragment.java
com.luboganev.dejalist.ui.MainActivity$$ViewInjector.java
com.luboganev.dejalist.ui.MainActivity.java
com.luboganev.dejalist.ui.NavigationCursorAdapter$ViewHolder$$ViewInjector.java
com.luboganev.dejalist.ui.NavigationCursorAdapter.java
com.luboganev.dejalist.ui.ProductActivity$$ViewInjector.java
com.luboganev.dejalist.ui.ProductActivity.java
com.luboganev.dejalist.ui.ProductsGalleryActionTaker.java
com.luboganev.dejalist.ui.ProductsGalleryController.java
com.luboganev.dejalist.ui.ProductsGalleryCursorAdapter$ViewHolder$$ViewInjector.java
com.luboganev.dejalist.ui.ProductsGalleryCursorAdapter.java
com.luboganev.dejalist.ui.ProductsGalleryFragment$$ViewInjector.java
com.luboganev.dejalist.ui.ProductsGalleryFragment.java
com.luboganev.dejalist.ui.SetProductsCategoryDialogFragment.java
com.luboganev.dejalist.ui.UndoBarController.java