Delete dead code

We don't have any reference remaining to few function calls.
Removing that code to ensure line coverage

Bug: 326916057
Test: TH
Flag: EXEMPT code removal
Change-Id: I4633b0c113bbeec0d65a7c0dcd9da3e192eef779

4 files changed, 0 insertions, 269 deletions

diff --git a/packages/CrashRecovery/services/module/java/com/android/server/RescueParty.java b/packages/CrashRecovery/services/module/java/com/android/server/RescueParty.java
index 40bc5f78a9c6..846da194b3c3 100644
--- a/packages/CrashRecovery/services/module/java/com/android/server/RescueParty.java
+++ b/packages/CrashRecovery/services/module/java/com/android/server/RescueParty.java
@@ -29,18 +29,13 @@ import android.content.pm.PackageManager;
 import android.content.pm.VersionedPackage;
 import android.crashrecovery.flags.Flags;
 import android.os.Build;
-import android.os.Environment;
 import android.os.PowerManager;
 import android.os.RecoverySystem;
 import android.os.SystemClock;
 import android.os.SystemProperties;
-import android.os.UserHandle;
-import android.provider.DeviceConfig;
 import android.provider.Settings;
 import android.sysprop.CrashRecoveryProperties;
 import android.text.TextUtils;
-import android.util.ArraySet;
-import android.util.ArrayUtils;
 import android.util.EventLog;
 import android.util.FileUtils;
 import android.util.Log;
@@ -56,10 +51,7 @@ import com.android.server.crashrecovery.proto.CrashRecoveryStatsLog;
 import java.io.File;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
@@ -241,87 +233,11 @@ public class RescueParty {
         CrashRecoveryProperties.maxRescueLevelAttempted(level);
     }
 
-    private static Set<String> getPresetNamespacesForPackages(List<String> packageNames) {
-        Set<String> resultSet = new ArraySet<String>();
-        if (!Flags.deprecateFlagsAndSettingsResets()) {
-            try {
-                String flagVal = DeviceConfig.getString(NAMESPACE_CONFIGURATION,
-                        NAMESPACE_TO_PACKAGE_MAPPING_FLAG, "");
-                String[] mappingEntries = flagVal.split(",");
-                for (int i = 0; i < mappingEntries.length; i++) {
-                    if (TextUtils.isEmpty(mappingEntries[i])) {
-                        continue;
-                    }
-                    String[] splitEntry = mappingEntries[i].split(":");
-                    if (splitEntry.length != 2) {
-                        throw new RuntimeException("Invalid mapping entry: " + mappingEntries[i]);
-                    }
-                    String namespace = splitEntry[0];
-                    String packageName = splitEntry[1];
-
-                    if (packageNames.contains(packageName)) {
-                        resultSet.add(namespace);
-                    }
-                }
-            } catch (Exception e) {
-                resultSet.clear();
-                Slog.e(TAG, "Failed to read preset package to namespaces mapping.", e);
-            } finally {
-                return resultSet;
-            }
-        } else {
-            return resultSet;
-        }
-    }
-
     @VisibleForTesting
     static long getElapsedRealtime() {
         return SystemClock.elapsedRealtime();
     }
 
-    private static class RescuePartyMonitorCallback implements DeviceConfig.MonitorCallback {
-        Context mContext;
-
-        RescuePartyMonitorCallback(Context context) {
-            this.mContext = context;
-        }
-
-        public void onNamespaceUpdate(@NonNull String updatedNamespace) {
-            if (!Flags.deprecateFlagsAndSettingsResets()) {
-                startObservingPackages(mContext, updatedNamespace);
-            }
-        }
-
-        public void onDeviceConfigAccess(@NonNull String callingPackage,
-                @NonNull String namespace) {
-
-            if (!Flags.deprecateFlagsAndSettingsResets()) {
-                RescuePartyObserver.getInstance(mContext).recordDeviceConfigAccess(
-                        callingPackage,
-                        namespace);
-            }
-        }
-    }
-
-    private static void startObservingPackages(Context context, @NonNull String updatedNamespace) {
-        if (!Flags.deprecateFlagsAndSettingsResets()) {
-            RescuePartyObserver rescuePartyObserver = RescuePartyObserver.getInstance(context);
-            Set<String> callingPackages = rescuePartyObserver.getCallingPackagesSet(
-                    updatedNamespace);
-            if (callingPackages == null) {
-                return;
-            }
-            List<String> callingPackageList = new ArrayList<>();
-            callingPackageList.addAll(callingPackages);
-            Slog.i(TAG, "Starting to observe: " + callingPackageList + ", updated namespace: "
-                    + updatedNamespace);
-            PackageWatchdog.getInstance(context).startExplicitHealthCheck(
-                    callingPackageList,
-                    DEFAULT_OBSERVING_DURATION_MS,
-                    rescuePartyObserver);
-        }
-    }
-
     private static int getMaxRescueLevel(boolean mayPerformReboot) {
         if (Flags.recoverabilityDetection()) {
             if (!mayPerformReboot
@@ -849,34 +765,6 @@ public class RescueParty {
             }
         }
 
-        private synchronized void recordDeviceConfigAccess(@NonNull String callingPackage,
-                @NonNull String namespace) {
-            if (!Flags.deprecateFlagsAndSettingsResets()) {
-                // Record it in calling packages to namespace map
-                Set<String> namespaceSet = mCallingPackageNamespaceSetMap.get(callingPackage);
-                if (namespaceSet == null) {
-                    namespaceSet = new ArraySet<>();
-                    mCallingPackageNamespaceSetMap.put(callingPackage, namespaceSet);
-                }
-                namespaceSet.add(namespace);
-                // Record it in namespace to calling packages map
-                Set<String> callingPackageSet = mNamespaceCallingPackageSetMap.get(namespace);
-                if (callingPackageSet == null) {
-                    callingPackageSet = new ArraySet<>();
-                }
-                callingPackageSet.add(callingPackage);
-                mNamespaceCallingPackageSetMap.put(namespace, callingPackageSet);
-            }
-        }
-
-        private synchronized Set<String> getAffectedNamespaceSet(String failedPackage) {
-            return mCallingPackageNamespaceSetMap.get(failedPackage);
-        }
-
-        private synchronized Set<String> getAllAffectedNamespaceSet() {
-            return new HashSet<String>(mNamespaceCallingPackageSetMap.keySet());
-        }
-
         private synchronized Set<String> getCallingPackagesSet(String namespace) {
             return mNamespaceCallingPackageSetMap.get(namespace);
         }
@@ -894,26 +782,6 @@ public class RescueParty {
         return now < lastResetTime + TimeUnit.MINUTES.toMillis(throttleDurationMin);
     }
 
-    private static int[] getAllUserIds() {
-        int systemUserId = UserHandle.SYSTEM.getIdentifier();
-        int[] userIds = { systemUserId };
-        try {
-            for (File file : FileUtils.listFilesOrEmpty(
-                    Environment.getDataSystemDeviceProtectedDirectory())) {
-                try {
-                    final int userId = Integer.parseInt(file.getName());
-                    if (userId != systemUserId) {
-                        userIds = ArrayUtils.appendInt(userIds, userId);
-                    }
-                } catch (NumberFormatException ignored) {
-                }
-            }
-        } catch (Throwable t) {
-            Slog.w(TAG, "Trouble discovering users", t);
-        }
-        return userIds;
-    }
-
     /**
      * Hacky test to check if the device has an active USB connection, which is
      * a good proxy for someone doing local development work.
diff --git a/packages/CrashRecovery/services/module/java/com/android/util/ArrayUtils.java b/packages/CrashRecovery/services/module/java/com/android/util/ArrayUtils.java
index 0b7b98603419..29ff7cced897 100644
--- a/packages/CrashRecovery/services/module/java/com/android/util/ArrayUtils.java
+++ b/packages/CrashRecovery/services/module/java/com/android/util/ArrayUtils.java
@@ -16,13 +16,8 @@
 
 package android.util;
 
-import android.annotation.NonNull;
 import android.annotation.Nullable;
 
-import java.io.File;
-import java.util.List;
-import java.util.Objects;
-
 /**
  * Copied over from frameworks/base/core/java/com/android/internal/util/ArrayUtils.java
  *
@@ -30,25 +25,6 @@ import java.util.Objects;
  */
 public class ArrayUtils {
     private ArrayUtils() { /* cannot be instantiated */ }
-    public static final File[] EMPTY_FILE = new File[0];
-
-
-    /**
-     * Return first index of {@code value} in {@code array}, or {@code -1} if
-     * not found.
-     */
-    public static <T> int indexOf(@Nullable T[] array, T value) {
-        if (array == null) return -1;
-        for (int i = 0; i < array.length; i++) {
-            if (Objects.equals(array[i], value)) return i;
-        }
-        return -1;
-    }
-
-    /** @hide */
-    public static @NonNull File[] defeatNullable(@Nullable File[] val) {
-        return (val != null) ? val : EMPTY_FILE;
-    }
 
     /**
      * Checks if given array is null or has zero elements.
@@ -63,53 +39,4 @@ public class ArrayUtils {
     public static boolean isEmpty(@Nullable byte[] array) {
         return array == null || array.length == 0;
     }
-
-    /**
-     * Converts from List of bytes to byte array
-     * @param list
-     * @return byte[]
-     */
-    public static byte[] toPrimitive(List<byte[]> list) {
-        if (list.size() == 0) {
-            return new byte[0];
-        }
-        int byteLen = list.get(0).length;
-        byte[] array = new byte[list.size() * byteLen];
-        for (int i = 0; i < list.size(); i++) {
-            for (int j = 0; j < list.get(i).length; j++) {
-                array[i * byteLen + j] = list.get(i)[j];
-            }
-        }
-        return array;
-    }
-
-    /**
-     * Adds value to given array if not already present, providing set-like
-     * behavior.
-     */
-    public static @NonNull int[] appendInt(@Nullable int[] cur, int val) {
-        return appendInt(cur, val, false);
-    }
-
-    /**
-     * Adds value to given array.
-     */
-    public static @NonNull int[] appendInt(@Nullable int[] cur, int val,
-            boolean allowDuplicates) {
-        if (cur == null) {
-            return new int[] { val };
-        }
-        final int n = cur.length;
-        if (!allowDuplicates) {
-            for (int i = 0; i < n; i++) {
-                if (cur[i] == val) {
-                    return cur;
-                }
-            }
-        }
-        int[] ret = new int[n + 1];
-        System.arraycopy(cur, 0, ret, 0, n);
-        ret[n] = val;
-        return ret;
-    }
 }
diff --git a/packages/CrashRecovery/services/module/java/com/android/util/FileUtils.java b/packages/CrashRecovery/services/module/java/com/android/util/FileUtils.java
index 9c73feeffb6c..d60a9b9847ca 100644
--- a/packages/CrashRecovery/services/module/java/com/android/util/FileUtils.java
+++ b/packages/CrashRecovery/services/module/java/com/android/util/FileUtils.java
@@ -16,7 +16,6 @@
 
 package android.util;
 
-import android.annotation.NonNull;
 import android.annotation.Nullable;
 
 import java.io.BufferedInputStream;
@@ -115,14 +114,4 @@ public class FileUtils {
         }
         return false;
     }
-
-    /**
-     * List the files in the directory or return empty file.
-     *
-     * @hide
-     */
-    public static @NonNull File[] listFilesOrEmpty(@Nullable File dir) {
-        return (dir != null) ? ArrayUtils.defeatNullable(dir.listFiles())
-            : ArrayUtils.EMPTY_FILE;
-    }
 }
diff --git a/packages/CrashRecovery/services/module/java/com/android/util/XmlUtils.java b/packages/CrashRecovery/services/module/java/com/android/util/XmlUtils.java
index 50823f5c9c34..488b531c2b8a 100644
--- a/packages/CrashRecovery/services/module/java/com/android/util/XmlUtils.java
+++ b/packages/CrashRecovery/services/module/java/com/android/util/XmlUtils.java
@@ -16,21 +16,10 @@
 
 package android.util;
 
-import android.annotation.NonNull;
-import android.system.ErrnoException;
-import android.system.Os;
-
-import com.android.modules.utils.TypedXmlPullParser;
-
-import libcore.util.XmlObjectFactory;
-
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 
-import java.io.BufferedInputStream;
-import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStream;
 
 /**
  *  Bits and pieces copied from hidden API of
@@ -40,8 +29,6 @@ import java.io.InputStream;
  */
 public class XmlUtils {
 
-    private static final String STRING_ARRAY_SEPARATOR = ":";
-
     /** @hide */
     public static final void beginDocument(XmlPullParser parser, String firstElementName)
             throws XmlPullParserException, IOException {
@@ -76,44 +63,4 @@ public class XmlUtils {
             }
         }
     }
-
-    private static XmlPullParser newPullParser() {
-        try {
-            XmlPullParser parser = XmlObjectFactory.newXmlPullParser();
-            parser.setFeature(XmlPullParser.FEATURE_PROCESS_DOCDECL, true);
-            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true);
-            return parser;
-        } catch (XmlPullParserException e) {
-            throw new AssertionError();
-        }
-    }
-
-    /** @hide */
-    public static @NonNull TypedXmlPullParser resolvePullParser(@NonNull InputStream in)
-            throws IOException {
-        final byte[] magic = new byte[4];
-        if (in instanceof FileInputStream) {
-            try {
-                Os.pread(((FileInputStream) in).getFD(), magic, 0, magic.length, 0);
-            } catch (ErrnoException e) {
-                throw e.rethrowAsIOException();
-            }
-        } else {
-            if (!in.markSupported()) {
-                in = new BufferedInputStream(in);
-            }
-            in.mark(8);
-            in.read(magic);
-            in.reset();
-        }
-
-        final TypedXmlPullParser xml;
-        xml = (TypedXmlPullParser) newPullParser();
-        try {
-            xml.setInput(in, "UTF_8");
-        } catch (XmlPullParserException e) {
-            throw new IOException(e);
-        }
-        return xml;
-    }
 }