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Creates a zip from all files and saves the archive in the app's external files dir/archive/. Started working on the import functionality, still some problems with importing portions of the archive.
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plant_tracker/src/main/java/com/nonsense/planttracker/android/Zipper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| package com.nonsense.planttracker.android; | ||
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| import android.util.Log; | ||
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| import java.io.BufferedInputStream; | ||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipInputStream; | ||
| import java.util.zip.ZipOutputStream; | ||
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| /** | ||
| * Created by Derek Brooks on 1/30/2018. | ||
| */ | ||
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| public class Zipper { | ||
| private static final int BUFFER_SIZE = 2048; | ||
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| public static boolean importTrackerDataArchive(String basePath, String zipFile) { | ||
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| try { | ||
| ZipInputStream zis = new ZipInputStream(new BufferedInputStream( | ||
| new FileInputStream(zipFile))); | ||
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| ZipEntry ze = null; | ||
| while((ze=zis.getNextEntry()) != null) { | ||
| File f = new File(ze.getName()); | ||
| if (ze.isDirectory()) { | ||
| f.mkdirs(); | ||
| continue; | ||
| } | ||
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| FileOutputStream fos = new FileOutputStream(basePath + "/" + ze.getName()); | ||
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| int bytesRead = 0; | ||
| byte buf[] = new byte[BUFFER_SIZE]; | ||
| while((bytesRead=zis.read(buf, 0, BUFFER_SIZE)) != -1) { | ||
| fos.write(buf, 0, bytesRead); | ||
| } | ||
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| fos.close(); | ||
| zis.closeEntry(); | ||
| } | ||
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| zis.close(); | ||
| return true; | ||
| } | ||
| catch(Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
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| return false; | ||
| } | ||
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| // private static void unZipFiles(ZipInputStream zis, String path) { | ||
| // File f = new File(path); | ||
| // if (f.isDirectory()) { | ||
| // | ||
| // } | ||
| // else { | ||
| // | ||
| // } | ||
| // | ||
| // | ||
| // } | ||
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| public static boolean compressTrackerData(ArrayList<String> files, String zipFile) { | ||
| try { | ||
| ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipFile)); | ||
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| for(String file : files) { | ||
| if ((new File(file)).isDirectory()) { | ||
| ZipEntry ze = new ZipEntry(file); | ||
| zos.putNextEntry(ze); | ||
| String archivePath = file.substring(file.lastIndexOf('/') + 1); | ||
| zipFolders(zos, archivePath, file); | ||
| } | ||
| else { | ||
| zipFile(zos, "", file); | ||
| } | ||
| } | ||
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| zos.close(); | ||
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| return true; | ||
| } | ||
| catch(Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
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| return false; | ||
| } | ||
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| private static void zipFolders(ZipOutputStream zos, String archivePath, String path) throws | ||
| IOException { | ||
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| File folder = new File(path); | ||
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| for(File f : folder.listFiles()) { | ||
| if (f.isDirectory()) { | ||
| zipFolders(zos, "/" + archivePath + "/" + f.getName(), f.getPath()); | ||
| } | ||
| else { | ||
| zipFile(zos, archivePath, f.getPath()); | ||
| } | ||
| } | ||
| } | ||
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| private static void zipFile(ZipOutputStream zos, String archivePath, String file) throws | ||
| IOException { | ||
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| BufferedInputStream bis = null; | ||
| FileInputStream fis = new FileInputStream(file); | ||
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| bis = new BufferedInputStream(fis); | ||
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| String fileName = file.substring(file.lastIndexOf("/") + 1); | ||
| ZipEntry entry = new ZipEntry(archivePath + "/" + fileName); | ||
| zos.putNextEntry(entry); | ||
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| int readBytes = 0; | ||
| byte buf[] = new byte[BUFFER_SIZE]; | ||
| while((readBytes = bis.read(buf, 0, BUFFER_SIZE)) != -1) { | ||
| zos.write(buf, 0, readBytes); | ||
| } | ||
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| bis.close(); | ||
| } | ||
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| //TODO unzip! | ||
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| // | ||
| // public void zip() { | ||
| // try { | ||
| // BufferedInputStream origin = null; | ||
| // FileOutputStream dest = new FileOutputStream(_zipFile); | ||
| // | ||
| // ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest)); | ||
| // | ||
| // byte data[] = new byte[BUFFER]; | ||
| // | ||
| // for(int i=0; i < _files.length; i++) { | ||
| // Log.v("Compress", "Adding: " + _files[i]); | ||
| // FileInputStream fi = new FileInputStream(_files[i]); | ||
| // origin = new BufferedInputStream(fi, BUFFER); | ||
| // ZipEntry entry = new ZipEntry(_files[i].substring(_files[i].lastIndexOf("/") + 1)); | ||
| // out.putNextEntry(entry); | ||
| // int count; | ||
| // while ((count = origin.read(data, 0, BUFFER)) != -1) { | ||
| // out.write(data, 0, count); | ||
| // } | ||
| // origin.close(); | ||
| // } | ||
| // | ||
| // out.close(); | ||
| // } catch(Exception e) { | ||
| // e.printStackTrace(); | ||
| // } | ||
| // | ||
| // } | ||
| } |
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