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[Settings] Adjust code for performance

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Reorder code flow to reduce redundent work.

Bug: 213836977
Change-Id: Ieb1a15e867dcc5c65e8092d9f5c5eb38245138c9
Test: Junit VpnPreferenceControllerTest
This commit is contained in:
Bonian Chen
2022-01-18 05:11:42 +00:00
parent 13f22fd6c5
commit 9d56033f5f
1 changed files with 18 additions and 30 deletions
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48
src/com/android/settings/network/VpnPreferenceController.java
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@@ -30,7 +30,6 @@ import android.provider.SettingsSlicesContract;
import android.security.Credentials;
import android.security.LegacyVpnProfileStore;
import android.util.Log;
import android.util.SparseArray;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
@@ -140,6 +139,7 @@ public class VpnPreferenceController extends AbstractPreferenceController
}
VpnConfig vpn = vpnManager.getVpnConfig(uid);
if ((vpn != null) && vpn.legacy) {
// Copied from SystemUI::SecurityControllerImpl
// Legacy VPNs should do nothing if the network is disconnected. Third-party
// VPN warnings need to continue as traffic can still go to the app.
final LegacyVpnInfo legacyVpn = vpnManager.getLegacyVpnInfo(uid);
@@ -158,34 +158,19 @@ public class VpnPreferenceController extends AbstractPreferenceController
}
protected int getNumberOfNonLegacyVpn(UserManager userManager, VpnManager vpnManager) {
// Copied from SystemUI::SecurityControllerImpl
SparseArray<VpnConfig> vpns = new SparseArray<>();
final List<UserInfo> users = userManager.getUsers();
int connectedLegacyVpnCount = 0;
for (UserInfo user : users) {
VpnConfig cfg = vpnManager.getVpnConfig(user.id);
if (cfg == null) {
continue;
} else if (cfg.legacy) {
// Legacy VPNs should do nothing if the network is disconnected. Third-party
// VPN warnings need to continue as traffic can still go to the app.
final LegacyVpnInfo legacyVpn = vpnManager.getLegacyVpnInfo(user.id);
if (legacyVpn == null || legacyVpn.state != LegacyVpnInfo.STATE_CONNECTED) {
continue;
} else {
connectedLegacyVpnCount++;
}
}
vpns.put(user.id, cfg);
}
return vpns.size() - connectedLegacyVpnCount;
// Converted from SystemUI::SecurityControllerImpl
return (int) userManager.getUsers().stream()
.map(user -> vpnManager.getVpnConfig(user.id))
.filter(cfg -> (cfg != null) && (!cfg.legacy))
.count();
}
protected String getInsecureVpnSummaryOverride(UserManager userManager,
VpnManager vpnManager) {
// Optionally add warning icon if an insecure VPN is present.
if (mPreference instanceof VpnInfoPreference) {
final int insecureVpnCount = getInsecureVpnCount();
String [] legacyVpnProfileKeys = LegacyVpnProfileStore.list(Credentials.VPN);
final int insecureVpnCount = getInsecureVpnCount(legacyVpnProfileKeys);
boolean isInsecureVPN = insecureVpnCount > 0;
((VpnInfoPreference) mPreference).setInsecureVpn(isInsecureVPN);
@@ -193,11 +178,14 @@ public class VpnPreferenceController extends AbstractPreferenceController
if (isInsecureVPN) {
// Add the users and the number of legacy vpns to determine if there is more than
// one vpn, since there can be more than one VPN per user.
final int vpnCount = getNumberOfNonLegacyVpn(userManager, vpnManager)
+ LegacyVpnProfileStore.list(Credentials.VPN).length;
if (vpnCount == 1) {
return mContext.getString(R.string.vpn_settings_insecure_single);
} else if (insecureVpnCount == 1) {
int vpnCount = legacyVpnProfileKeys.length;
if (vpnCount <= 1) {
vpnCount += getNumberOfNonLegacyVpn(userManager, vpnManager);
if (vpnCount == 1) {
return mContext.getString(R.string.vpn_settings_insecure_single);
}
}
if (insecureVpnCount == 1) {
return mContext.getString(
R.string.vpn_settings_single_insecure_multiple_total,
insecureVpnCount);
@@ -229,10 +217,10 @@ public class VpnPreferenceController extends AbstractPreferenceController
}
@VisibleForTesting
protected int getInsecureVpnCount() {
protected int getInsecureVpnCount(String [] legacyVpnProfileKeys) {
final Function<String, VpnProfile> keyToProfile = key ->
VpnProfile.decode(key, LegacyVpnProfileStore.get(Credentials.VPN + key));
return (int) Arrays.stream(LegacyVpnProfileStore.list(Credentials.VPN))
return (int) Arrays.stream(legacyVpnProfileKeys)
.map(keyToProfile)
// Return whether any profile is an insecure type.
.filter(profile -> VpnProfile.isLegacyType(profile.type))