How to view couchbase lite database on windows? - android-studio

I am new to couchbase lite implementation, i am working on Android platform and i have created a database,saved a simple document in it. Now i want to extract the database and view the document saved in it. I placed a sample json in raw folder, read from raw and converted to hashmap.
Below are all the details
CODE
DatabaseManager class to create database
package com.example.couchbasesample;
import android.content.Context;
import com.couchbase.lite.CouchbaseLiteException;
import com.couchbase.lite.Database;
import com.couchbase.lite.DatabaseConfiguration;
import java.io.File;
public class DatabaseManager {
private final static String DATABASE_NAME = "couchbase_test";
public Database database;
private static DatabaseManager instance = null;
public DatabaseManager(Context context) {
// Set database configuration
try {
// Set Database configuration
DatabaseConfiguration config = new DatabaseConfiguration(context);
File dir = context.getDir("COUCH_ANDROID",Context.MODE_PRIVATE);
config.setDirectory(dir.toString());
// Create / Open a database with specified name and configuration
database = new Database(DATABASE_NAME, config);
}
catch (CouchbaseLiteException e) {
e.printStackTrace();
}
}
public static DatabaseManager getSharedInstance(Context context) {
if (instance == null) {
instance = new DatabaseManager(context);
}
return instance;
}
}
MainActivity
package com.example.couchbasesample;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import com.couchbase.lite.MutableDocument;
import com.google.gson.Gson;
import org.json.JSONObject;
import java.io.InputStream;
import java.util.HashMap;
import butterknife.BindView;
import butterknife.ButterKnife;
public class MainActivity extends AppCompatActivity {
private DatabaseManager dbMgr;
#BindView(R.id.btnSave)
Button btnSave;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
// Initialize couchbase lite database manager
dbMgr = new DatabaseManager(this);
btnSave.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
JSONObject customerJSON = new JSONObject(getFileFromResources(MainActivity.this, "samplecustomer"));
/* HashMap<String, JSONObject> customerTest = new HashMap<>();
customerTest.put("1", customerJSON);*/
HashMap<String, Object> yourHashMap = new Gson().fromJson(customerJSON.toString(), HashMap.class);
MutableDocument doc = new MutableDocument(yourHashMap);
// 3. Save document to database.
dbMgr.database.save(doc);
Toast.makeText(MainActivity.this, "saved", Toast.LENGTH_LONG).show();
} catch (Exception e) {
Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
});
}
public static String getFileFromResources(Context context, String fileName) {
String json = null;
try {
InputStream is = context.getResources().openRawResource(
context.getResources().getIdentifier(fileName,
"raw", context.getPackageName()));
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
json = new String(buffer, "UTF-8");
} catch (Exception ex) {
ex.printStackTrace();
}
return json;
}
}
WHAT I TRIED
I extracted the database using "Device file explorer" from android studio, when i save the app_COUCH_ANDROID folder and open .sqlite file in DB Browser for SQLite couldn't view the saved document instead it just shows up with random data i am unable to understand.
*Other than this i researched and found the following viewer,but unable to use this as its for MAC OS.
https://github.com/couchbaselabs/CouchbaseLiteViewer*
How i can view the couchbase lite database. Can somebody please help me out with this? Any help will be appreciated.

If you need to lookup documents stored in the database, use the getDocument or any of the Query APIs from within your app.
If you want to query the database outside of the content of the app, then you can use the cblite tool. This is a command line tool that will allow you to open and introspect the cblite2 database.
Any reason why you are trying to look up documents outside the context of the app that is embedding the database? You cannot view the data with a standard sqlite browser because the data is binary encoded and stored in Fleece format.

Related

Android studio: How to create BiometricManager and other bugs

So as a homework from collage i have to make a simple login app using fingerprint, i followed this video: How to Make a FingerPrint Authentication System in Android Studio and Java
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package com.example.actividad14;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.ContextCompat;
import android.graphics.Color;
import android.hardware.biometrics.BiometricManager;
import android.hardware.biometrics.BiometricPrompt;
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import android.view.View;
import android.widget.Button;
import android.widget.TextView;
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import java.util.concurrent.Executor;
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#RequiresApi(api = Build.VERSION_CODES.Q)
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case BiometricManager.BIOMETRIC_ERROR_HW_UNAVAILABLE:
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login_btn.setVisibility(View.GONE);
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Executor executor = ContextCompat.getMainExecutor(this);
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super.onAuthenticationError(errorCode, errString);
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#Override
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super.onAuthenticationSucceeded(result);
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#Override
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super.onAuthenticationFailed();
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final BiometricPrompt.PrompInfo prompInfo = BiometricPrompt.PrompInfo.Builder()
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login_btn.setOnClickListener(new View.OnClickListener() {
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biometricPrompt.authenticate(prompInfo);
}
});
}
}
At BiometricManager biometricManager = BiometricManager.from(this); im getting "cannot resolve method 'from' in 'biometricmanager'", but every video i have seen says that you create your BiometricManager this way.
At BiometricPrompt biometricPrompt = new BiometricPrompt(MainActivity.this, executor, new androidx.biometric.BiometricPrompt.AuthenticationCallback() { im getting "'BiometricPrompt' has private access in 'android.hardware.biometrics.BiometricPrompt'".
At final BiometricPrompt.PrompInfo prompInfo = BiometricPrompt.PrompInfo.Builder() im getting "cannot resolve PromptInfo"
And finally at biometricPrompt.authenticate(prompInfo); im getting "cannot resolve method '(authenticate(BiometricPrompt.PrompInfo))'"
Sorry for the inconvinience, i fount out what was wrong, instead of using:
import android.hardware.biometrics.BiometricManager;
import android.hardware.biometrics.BiometricPrompt;
use
import androidx.biometric.BiometricManager;
import androidx.biometric.BiometricPrompt;
in the build.gradle i used
implementation 'androidx.biometric:biometric:1.2.0-alpha04'
But this can depend on new updates, so try with the newer ones also:
https://mvnrepository.com/artifact/androidx.biometric/biometric?repo=google
And finally i had PrompInfo instead of PromptInfo
This other post really helped me:
Android BiometricPrompt: Cannot resolve symbol PromptInfo

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import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
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import java.util.List;
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private final OutputStream result;
private final List<InputStream> inputs;
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this.result = result;
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OPCPackage srcPackage = OPCPackage.open(stream);
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apache poi---How to read password protected .doc file using java code?

How to read password protected .doc file using java code??
import java.io.File;
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import java.io.IOException;
import java.util.List;
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System.out.println(para.toString());
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I want java code to read password encrypted .doc file.
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How can I use GroovyClassLoader with target to compile all other required sources NOT FROM FILESYSYSTEM.
My sources are for example in database, remote http via URI etc.
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import groovy.lang.GroovyResourceLoader;
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import java.net.URLConnection;
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#Override
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private String lookupScriptCodeWithJDBCorWhatever(String resourceName) {
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class GroovyResourceStreamHandler extends URLStreamHandler {
private final String scriptSource;
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this.scriptSource = scriptSource;
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#Override
protected URLConnection openConnection(URL u) throws IOException {
GroovyResourceConnection connection = new GroovyResourceConnection(u, scriptSource);
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You then install this thing with some code that looks like this:
GroovyClassLoader groovyClassLoader = new GroovyClassLoader();
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import java.io.*;
import java.awt.*;
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import java.awt.event.*;
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//b.setBorderPainted(false);
//b.setOpaque(false);
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Look over this source for some tips.
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import java.awt.event.*;
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BTW - The JFrame here would probably be better converted to a JDialog or JOptionPane.

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