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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.tv.search;
import android.app.SearchManager;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.os.SystemClock;
import android.support.annotation.NonNull;
import android.support.annotation.VisibleForTesting;
import android.text.TextUtils;
import android.util.Log;
import com.android.tv.TvApplication;
import com.android.tv.common.SoftPreconditions;
import com.android.tv.common.TvCommonUtils;
import com.android.tv.perf.EventNames;
import com.android.tv.perf.PerformanceMonitor;
import com.android.tv.perf.TimerEvent;
import com.android.tv.util.PermissionUtils;
import com.android.tv.util.TvUriMatcher;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class LocalSearchProvider extends ContentProvider {
private static final String TAG = "LocalSearchProvider";
private static final boolean DEBUG = false;
/** The authority for LocalSearchProvider. */
public static final String AUTHORITY = "com.android.tv.search";
public static final int PROGRESS_PERCENTAGE_HIDE = -1;
// TODO: Remove this once added to the SearchManager.
private static final String SUGGEST_COLUMN_PROGRESS_BAR_PERCENTAGE = "progress_bar_percentage";
private static final String[] SEARCHABLE_COLUMNS = new String[] {
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_RESULT_CARD_IMAGE,
SearchManager.SUGGEST_COLUMN_INTENT_ACTION,
SearchManager.SUGGEST_COLUMN_INTENT_DATA,
SearchManager.SUGGEST_COLUMN_CONTENT_TYPE,
SearchManager.SUGGEST_COLUMN_IS_LIVE,
SearchManager.SUGGEST_COLUMN_VIDEO_WIDTH,
SearchManager.SUGGEST_COLUMN_VIDEO_HEIGHT,
SearchManager.SUGGEST_COLUMN_DURATION,
SUGGEST_COLUMN_PROGRESS_BAR_PERCENTAGE
};
private static final String EXPECTED_PATH_PREFIX = "/" + SearchManager.SUGGEST_URI_PATH_QUERY;
static final String SUGGEST_PARAMETER_ACTION = "action";
// The launcher passes 10 as a 'limit' parameter by default.
@VisibleForTesting
static final int DEFAULT_SEARCH_LIMIT = 10;
@VisibleForTesting
static final int DEFAULT_SEARCH_ACTION = SearchInterface.ACTION_TYPE_AMBIGUOUS;
private static final String NO_LIVE_CONTENTS = "0";
private static final String LIVE_CONTENTS = "1";
private PerformanceMonitor mPerformanceMonitor;
/** Used only for testing */
private SearchInterface mSearchInterface;
@Override
public boolean onCreate() {
mPerformanceMonitor = TvApplication.getSingletons(getContext()).getPerformanceMonitor();
return true;
}
@VisibleForTesting
void setSearchInterface(SearchInterface searchInterface) {
SoftPreconditions.checkState(TvCommonUtils.isRunningInTest());
mSearchInterface = searchInterface;
}
@Override
public Cursor query(@NonNull Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
if (TvUriMatcher.match(uri) != TvUriMatcher.MATCH_ON_DEVICE_SEARCH) {
throw new IllegalArgumentException("Unknown URI: " + uri);
}
TimerEvent queryTimer = mPerformanceMonitor.startTimer();
if (DEBUG) {
Log.d(TAG, "query(" + uri + ", " + Arrays.toString(projection) + ", " + selection + ", "
+ Arrays.toString(selectionArgs) + ", " + sortOrder + ")");
}
long time = SystemClock.elapsedRealtime();
SearchInterface search = mSearchInterface;
if (search == null) {
if (PermissionUtils.hasAccessAllEpg(getContext())) {
if (DEBUG) Log.d(TAG, "Performing TV Provider search.");
search = new TvProviderSearch(getContext());
} else {
if (DEBUG) Log.d(TAG, "Performing Data Manager search.");
search = new DataManagerSearch(getContext());
}
}
String query = uri.getLastPathSegment();
int limit = getQueryParamater(uri, SearchManager.SUGGEST_PARAMETER_LIMIT,
DEFAULT_SEARCH_LIMIT);
if (limit <= 0) {
limit = DEFAULT_SEARCH_LIMIT;
}
int action = getQueryParamater(uri, SUGGEST_PARAMETER_ACTION, DEFAULT_SEARCH_ACTION);
if (action < SearchInterface.ACTION_TYPE_START
|| action > SearchInterface.ACTION_TYPE_END) {
action = DEFAULT_SEARCH_ACTION;
}
List<SearchResult> results = new ArrayList<>();
if (!TextUtils.isEmpty(query)) {
results.addAll(search.search(query, limit, action));
}
Cursor c = createSuggestionsCursor(results);
if (DEBUG) {
Log.d(TAG, "Elapsed time(count=" + c.getCount() + "): "
+ (SystemClock.elapsedRealtime() - time) + "(msec)");
}
mPerformanceMonitor.stopTimer(queryTimer, EventNames.ON_DEVICE_SEARCH);
return c;
}
private int getQueryParamater(Uri uri, String key, int defaultValue) {
try {
return Integer.parseInt(uri.getQueryParameter(key));
} catch (NumberFormatException | UnsupportedOperationException e) {
// Ignore the exceptions
}
return defaultValue;
}
private Cursor createSuggestionsCursor(List<SearchResult> results) {
MatrixCursor cursor = new MatrixCursor(SEARCHABLE_COLUMNS, results.size());
List<String> row = new ArrayList<>(SEARCHABLE_COLUMNS.length);
int index = 0;
for (SearchResult result : results) {
row.clear();
row.add(result.title);
row.add(result.description);
row.add(result.imageUri);
row.add(result.intentAction);
row.add(result.intentData);
row.add(result.contentType);
row.add(result.isLive ? LIVE_CONTENTS : NO_LIVE_CONTENTS);
row.add(result.videoWidth == 0 ? null : String.valueOf(result.videoWidth));
row.add(result.videoHeight == 0 ? null : String.valueOf(result.videoHeight));
row.add(result.duration == 0 ? null : String.valueOf(result.duration));
row.add(String.valueOf(result.progressPercentage));
cursor.addRow(row);
if (DEBUG) Log.d(TAG, "Result[" + (++index) + "]: " + result);
}
return cursor;
}
@Override
public String getType(Uri uri) {
if (!checkUriCorrect(uri)) return null;
return SearchManager.SUGGEST_MIME_TYPE;
}
private static boolean checkUriCorrect(Uri uri) {
return uri != null && uri.getPath().startsWith(EXPECTED_PATH_PREFIX);
}
@Override
public Uri insert(Uri uri, ContentValues values) {
throw new UnsupportedOperationException();
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
throw new UnsupportedOperationException();
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
throw new UnsupportedOperationException();
}
/**
* A placeholder to a search result.
*/
public static class SearchResult {
public long channelId;
public String channelNumber;
public String title;
public String description;
public String imageUri;
public String intentAction;
public String intentData;
public String contentType;
public boolean isLive;
public int videoWidth;
public int videoHeight;
public long duration;
public int progressPercentage;
@Override
public String toString() {
return "SearchResult{channelId=" + channelId +
", channelNumber=" + channelNumber +
", title=" + title +
", description=" + description +
", imageUri=" + imageUri +
", intentAction=" + intentAction +
", intentData=" + intentData +
", contentType=" + contentType +
", isLive=" + isLive +
", videoWidth=" + videoWidth +
", videoHeight=" + videoHeight +
", duration=" + duration +
", progressPercentage=" + progressPercentage +
"}";
}
}
}
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