package com.tangem.data; import android.content.ContentProvider; import android.content.ContentValues; import android.content.UriMatcher; import android.database.Cursor; import android.net.Uri; import android.os.ParcelFileDescriptor; import android.util.Log; import com.tangem.wallet.R; import java.io.File; import java.io.FileNotFoundException; import java.util.Objects; /** * Created by dvol on 15.02.2018. */ public class LogFileProvider extends ContentProvider { private static final String TAG = LogFileProvider.class.getSimpleName() + "-oF"; // UriMatcher used to match against incoming requests private UriMatcher uriMatcher; @Override public boolean onCreate() { uriMatcher = new UriMatcher(UriMatcher.NO_MATCH); // Add a URI to the matcher which will match against the form // 'content://it.my.app.LogFileProvider/*' // and return 1 in the case that the incoming Uri matches this pattern uriMatcher.addURI(Objects.requireNonNull(getContext()).getString(R.string.log_file_provider_authorities), "*", 1); return true; } @Override public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException { Log.v(TAG, "Called with uri: '" + uri + "'." + uri.getLastPathSegment()); // check incoming Uri against the matcher switch (uriMatcher.match(uri)) { // If it returns 1 - then it matches the Uri defined in onCreate case 1: // The desired file name is specified by the last segment of the // path // E.g. // 'content://it.my.app.LogFileProvider/Test1.txt' // Take this and build the path to the file String fileLocation = getContext().getCacheDir() + File.separator + uri.getLastPathSegment(); // Create & return a ParcelFileDescriptor pointing to the file // Note: I don't care what mode they ask for - they're only getting // read only ParcelFileDescriptor pfd = ParcelFileDescriptor.open(new File(fileLocation), ParcelFileDescriptor.MODE_READ_ONLY); return pfd; // Otherwise unrecognised Uri default: Log.v(TAG, "Unsupported uri: '" + uri + "'."); throw new FileNotFoundException("Unsupported uri: " + uri.toString()); } } // ////////////////////////////////////////////////////////////// // Not supported / used / required for this example // ////////////////////////////////////////////////////////////// @Override public int update(Uri uri, ContentValues contentvalues, String s, String[] as) { return 0; } @Override public int delete(Uri uri, String s, String[] as) { return 0; } @Override public Uri insert(Uri uri, ContentValues contentvalues) { return null; } @Override public String getType(Uri uri) { return null; } @Override public Cursor query(Uri uri, String[] projection, String s, String[] as1, String s1) { return null; } }