1 files changed, 139 insertions, 0 deletions
diff --git a/android/companion/WifiDeviceFilter.java b/android/companion/WifiDeviceFilter.java
new file mode 100644
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+++ b/android/companion/WifiDeviceFilter.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2017 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 android.companion;
+
+import static android.companion.BluetoothDeviceFilterUtils.getDeviceDisplayNameInternal;
+import static android.companion.BluetoothDeviceFilterUtils.patternFromString;
+import static android.companion.BluetoothDeviceFilterUtils.patternToString;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.annotation.SuppressLint;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.le.ScanFilter;
+import android.net.wifi.ScanResult;
+import android.os.Parcel;
+import android.provider.OneTimeUseBuilder;
+
+import java.util.Objects;
+import java.util.regex.Pattern;
+
+/**
+ * A filter for Wifi devices
+ *
+ * @see ScanFilter
+ */
+public final class WifiDeviceFilter implements DeviceFilter<ScanResult> {
+
+    private final Pattern mNamePattern;
+
+    private WifiDeviceFilter(Pattern namePattern) {
+        mNamePattern = namePattern;
+    }
+
+    @SuppressLint("ParcelClassLoader")
+    private WifiDeviceFilter(Parcel in) {
+        this(patternFromString(in.readString()));
+    }
+
+    /** @hide */
+    @Nullable
+    public Pattern getNamePattern() {
+        return mNamePattern;
+    }
+
+
+    /** @hide */
+    @Override
+    public boolean matches(ScanResult device) {
+        return BluetoothDeviceFilterUtils.matchesName(getNamePattern(), device);
+    }
+
+    /** @hide */
+    @Override
+    public String getDeviceDisplayName(ScanResult device) {
+        return getDeviceDisplayNameInternal(device);
+    }
+
+    /** @hide */
+    @Override
+    public int getMediumType() {
+        return MEDIUM_TYPE_WIFI;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        WifiDeviceFilter that = (WifiDeviceFilter) o;
+        return Objects.equals(mNamePattern, that.mNamePattern);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(mNamePattern);
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeString(patternToString(getNamePattern()));
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public static final Creator<WifiDeviceFilter> CREATOR
+            = new Creator<WifiDeviceFilter>() {
+        @Override
+        public WifiDeviceFilter createFromParcel(Parcel in) {
+            return new WifiDeviceFilter(in);
+        }
+
+        @Override
+        public WifiDeviceFilter[] newArray(int size) {
+            return new WifiDeviceFilter[size];
+        }
+    };
+
+    /**
+     * Builder for {@link WifiDeviceFilter}
+     */
+    public static final class Builder extends OneTimeUseBuilder<WifiDeviceFilter> {
+        private Pattern mNamePattern;
+
+        /**
+         * @param regex if set, only devices with {@link BluetoothDevice#getName name} matching the
+         *              given regular expression will be shown
+         * @return self for chaining
+         */
+        public Builder setNamePattern(@Nullable Pattern regex) {
+            checkNotUsed();
+            mNamePattern = regex;
+            return this;
+        }
+
+        /** @inheritDoc */
+        @Override
+        @NonNull
+        public WifiDeviceFilter build() {
+            markUsed();
+            return new WifiDeviceFilter(mNamePattern);
+        }
+    }
+}