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Update Settings search result unique ids

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- SearchResult stableIds are now DocIds from the database
- DocIds are data reference key's hash, when the key is not
empty or null
- Otherwise, DocIds are a hashcode from a set of fields.

Change-Id: Id36f7bf4ceaaa3a2bd326ecafbfe97fd0b247df2
Fixes: 37327194
Test: make RunSettingsRoboTest
This commit is contained in:
Matthew Fritze
2017-05-12 15:59:19 -07:00
parent 7f2d779e15
commit 6efea1e624
12 changed files with 347 additions and 499 deletions
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96
src/com/android/settings/search/DatabaseResultLoader.java
View File

@@ -21,13 +21,15 @@ import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.support.annotation.VisibleForTesting;
import android.text.TextUtils;
import com.android.settings.dashboard.SiteMapManager;
import com.android.settings.utils.AsyncLoader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static com.android.settings.search.IndexDatabaseHelper.IndexColumns;
import static com.android.settings.search.IndexDatabaseHelper.Tables.TABLE_PREFS_INDEX;
@@ -108,7 +110,7 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
mSiteMapManager = mapManager;
mContext = context;
mQueryText = cleanQuery(queryText);
mConverter = new CursorToSearchResultConverter(context, mQueryText);
mConverter = new CursorToSearchResultConverter(context);
}
@Override
@@ -122,28 +124,16 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
return null;
}
final List<SearchResult> primaryFirstWordResults;
final List<SearchResult> primaryMidWordResults;
final List<SearchResult> secondaryResults;
final List<SearchResult> tertiaryResults;
final Set<SearchResult> resultSet = new HashSet<>();
primaryFirstWordResults = firstWordQuery(MATCH_COLUMNS_PRIMARY, BASE_RANKS[0]);
primaryMidWordResults = secondaryWordQuery(MATCH_COLUMNS_PRIMARY, BASE_RANKS[1]);
secondaryResults = anyWordQuery(MATCH_COLUMNS_SECONDARY, BASE_RANKS[2]);
tertiaryResults = anyWordQuery(MATCH_COLUMNS_TERTIARY, BASE_RANKS[3]);
resultSet.addAll(firstWordQuery(MATCH_COLUMNS_PRIMARY, BASE_RANKS[0]));
resultSet.addAll(secondaryWordQuery(MATCH_COLUMNS_PRIMARY, BASE_RANKS[1]));
resultSet.addAll(anyWordQuery(MATCH_COLUMNS_SECONDARY, BASE_RANKS[2]));
resultSet.addAll(anyWordQuery(MATCH_COLUMNS_TERTIARY, BASE_RANKS[3]));
final List<SearchResult> results = new ArrayList<>(
primaryFirstWordResults.size()
+ primaryMidWordResults.size()
+ secondaryResults.size()
+ tertiaryResults.size());
results.addAll(primaryFirstWordResults);
results.addAll(primaryMidWordResults);
results.addAll(secondaryResults);
results.addAll(tertiaryResults);
return removeDuplicates(results);
final List<SearchResult> results = new ArrayList<>(resultSet);
Collections.sort(results);
return results;
}
@Override
@@ -171,7 +161,7 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
* @param baseRank The highest rank achievable by these results
* @return A list of the matching results.
*/
private List<SearchResult> firstWordQuery(String[] matchColumns, int baseRank) {
private Set<SearchResult> firstWordQuery(String[] matchColumns, int baseRank) {
final String whereClause = buildSingleWordWhereClause(matchColumns);
final String query = mQueryText + "%";
final String[] selection = buildSingleWordSelection(query, matchColumns.length);
@@ -187,7 +177,7 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
* @param baseRank The highest rank achievable by these results
* @return A list of the matching results.
*/
private List<SearchResult> secondaryWordQuery(String[] matchColumns, int baseRank) {
private Set<SearchResult> secondaryWordQuery(String[] matchColumns, int baseRank) {
final String whereClause = buildSingleWordWhereClause(matchColumns);
final String query = "% " + mQueryText + "%";
final String[] selection = buildSingleWordSelection(query, matchColumns.length);
@@ -202,7 +192,7 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
* @param baseRank The highest rank achievable by these results
* @return A list of the matching results.
*/
private List<SearchResult> anyWordQuery(String[] matchColumns, int baseRank) {
private Set<SearchResult> anyWordQuery(String[] matchColumns, int baseRank) {
final String whereClause = buildTwoWordWhereClause(matchColumns);
final String[] selection = buildAnyWordSelection(matchColumns.length * 2);
@@ -217,9 +207,8 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
* @param baseRank The highest rank achievable by these results.
* @return A list of the matching results.
*/
private List<SearchResult> query(String whereClause, String[] selection, int baseRank) {
final SQLiteDatabase database = IndexDatabaseHelper.getInstance(mContext)
.getReadableDatabase();
private Set<SearchResult> query(String whereClause, String[] selection, int baseRank) {
SQLiteDatabase database = IndexDatabaseHelper.getInstance(mContext).getReadableDatabase();
final Cursor resultCursor = database.query(TABLE_PREFS_INDEX, SELECT_COLUMNS, whereClause,
selection, null, null, null);
return mConverter.convertCursor(mSiteMapManager, resultCursor, baseRank);
@@ -299,55 +288,4 @@ public class DatabaseResultLoader extends AsyncLoader<List<? extends SearchResul
}
return selection;
}
/**
* Goes through the list of search results and verifies that none of the results are duplicates.
* A duplicate is quantified by a result with the same Title and the same non-empty Summary.
*
* The method walks through the results starting with the highest priority result. It removes
* the duplicates by doing the first rule that applies below:
* - If a result is inline, remove the intent result.
* - Remove the lower rank item.
* @param results A list of results with potential duplicates
* @return The list of results with duplicates removed.
*/
@VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
List<SearchResult> removeDuplicates(List<SearchResult> results) {
SearchResult primaryResult, secondaryResult;
// We accept the O(n^2) solution because the number of results is small.
for (int i = results.size() - 1; i >= 0; i--) {
secondaryResult = results.get(i);
for (int j = i - 1; j >= 0; j--) {
primaryResult = results.get(j);
if (areDuplicateResults(primaryResult, secondaryResult)) {
if (primaryResult.viewType != ResultPayload.PayloadType.INTENT) {
// Case where both payloads are inline
results.remove(i);
break;
} else if (secondaryResult.viewType != ResultPayload.PayloadType.INTENT) {
// Case where only second result is inline
results.remove(j);
i--; // shift the top index to reflect the lower element being removed
} else {
// Case where both payloads are intent
results.remove(i);
}
}
}
}
return results;
}
/**
* @return True when the two {@link SearchResult SearchResults} have the same title, and the same
* non-empty summary.
*/
private boolean areDuplicateResults(SearchResult primary, SearchResult secondary) {
return TextUtils.equals(primary.title, secondary.title)
&& TextUtils.equals(primary.summary, secondary.summary)
&& !TextUtils.isEmpty(primary.summary);
}
}