Create placeholder ContentProviders for database observations.
Required for the API 26 migration. See https://developer.android.com/about/versions/oreo/android-8.0-changes#ccnpull/1/head
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package org.thoughtcrime.securesms.database;
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import android.content.ContentProvider;
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import android.content.ContentValues;
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import android.database.Cursor;
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import android.net.Uri;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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/**
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* Starting in API 26, a {@link ContentProvider} needs to be defined for each authority you wish to
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* observe changes on. These classes essentially do nothing except exist so Android doesn't complain.
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*/
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public class DatabaseContentProviders {
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public static class ConversationList extends NoopContentProvider {
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public static final Uri CONTENT_URI = Uri.parse("content://org.thoughtcrime.securesms.database.conversationlist");
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}
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public static class Conversation extends NoopContentProvider {
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private static final String CONTENT_URI_STRING = "content://org.thoughtcrime.securesms.database.conversation/";
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public static Uri getUriForThread(long threadId) {
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return Uri.parse(CONTENT_URI_STRING + threadId);
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}
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}
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public static class Attachment extends NoopContentProvider {
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public static final Uri CONTENT_URI = Uri.parse("content://org.thoughtcrime.securesms.database.attachment");
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}
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private static abstract class NoopContentProvider extends ContentProvider {
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@Override
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public boolean onCreate() {
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return false;
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}
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@Nullable
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@Override
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public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) {
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return null;
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}
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@Nullable
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@Override
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public String getType(@NonNull Uri uri) {
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return null;
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}
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@Nullable
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@Override
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public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) {
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return null;
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}
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@Override
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public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) {
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return 0;
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}
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@Override
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public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) {
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return 0;
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}
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}
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}
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