1 files changed, 107 insertions, 0 deletions
diff --git a/core/java/android/net/NetworkIdentity.java b/core/java/android/net/NetworkIdentity.java
new file mode 100644
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+++ b/core/java/android/net/NetworkIdentity.java
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+/*
+ * Copyright (C) 2011 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.net;
+
+import static android.net.ConnectivityManager.isNetworkTypeMobile;
+
+import android.content.Context;
+import android.telephony.TelephonyManager;
+
+import com.android.internal.util.Objects;
+
+/**
+ * Network definition that includes strong identity. Analogous to combining
+ * {@link NetworkInfo} and an IMSI.
+ *
+ * @hide
+ */
+public class NetworkIdentity {
+    final int mType;
+    final int mSubType;
+    final String mSubscriberId;
+
+    public NetworkIdentity(int type, int subType, String subscriberId) {
+        this.mType = type;
+        this.mSubType = subType;
+        this.mSubscriberId = subscriberId;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(mType, mSubType, mSubscriberId);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj instanceof NetworkIdentity) {
+            final NetworkIdentity ident = (NetworkIdentity) obj;
+            return mType == ident.mType && mSubType == ident.mSubType
+                    && Objects.equal(mSubscriberId, ident.mSubscriberId);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        final String typeName = ConnectivityManager.getNetworkTypeName(mType);
+        final String subTypeName;
+        if (ConnectivityManager.isNetworkTypeMobile(mType)) {
+            subTypeName = TelephonyManager.getNetworkTypeName(mSubType);
+        } else {
+            subTypeName = Integer.toString(mSubType);
+        }
+
+        final String scrubSubscriberId = mSubscriberId != null ? "valid" : "null";
+        return "[type=" + typeName + ", subType=" + subTypeName + ", subscriberId="
+                + scrubSubscriberId + "]";
+    }
+
+    public int getType() {
+        return mType;
+    }
+
+    public int getSubType() {
+        return mSubType;
+    }
+
+    public String getSubscriberId() {
+        return mSubscriberId;
+    }
+
+    /**
+     * Build a {@link NetworkIdentity} from the given {@link NetworkState},
+     * assuming that any mobile networks are using the current IMSI.
+     */
+    public static NetworkIdentity buildNetworkIdentity(Context context, NetworkState state) {
+        final int type = state.networkInfo.getType();
+        final int subType = state.networkInfo.getSubtype();
+
+        // TODO: consider moving subscriberId over to LinkCapabilities, so it
+        // comes from an authoritative source.
+
+        final String subscriberId;
+        if (isNetworkTypeMobile(type)) {
+            final TelephonyManager telephony = (TelephonyManager) context.getSystemService(
+                    Context.TELEPHONY_SERVICE);
+            subscriberId = telephony.getSubscriberId();
+        } else {
+            subscriberId = null;
+        }
+        return new NetworkIdentity(type, subType, subscriberId);
+    }
+
+}