[MS07.1] Move NetworkStatsCollection/IdentitySet into frameworks

These files are needed for the data migration util system Api
interfaces to allow OEMs to construct NetworkStats* objects.
Thus, they need to be moved into android.net package, and some
of them will be exposed as @SystemApi in T.

Eventually these classes will be moved into the Connectivity
module, but in the mean time they will be temporarily moved to
f/b/package/ConnectivityT for the preparation stage.
However, the tests are already in the module. Therefore for
the S-derived branch, the test cannot see the renamed classes
since any framework CLs will not be auto-merged into this branch.
Thus, the tests need to stay disabled on the S-derived branch,
and will be re-enabled after all files are moved into the module.

Test: TH
Bug: 197717846

Change-Id: I95278a99cf2437ada28001161ceea17a1d32f2a4

1 files changed, 196 insertions, 0 deletions

diff --git a/framework-t/src/android/net/NetworkIdentitySet.java b/framework-t/src/android/net/NetworkIdentitySet.java
new file mode 100644
index 0000000000..abbebef85c
--- /dev/null
+++ b/framework-t/src/android/net/NetworkIdentitySet.java
@@ -0,0 +1,196 @@
+/*
+ * 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.TYPE_MOBILE;
+
+import android.service.NetworkIdentitySetProto;
+import android.util.proto.ProtoOutputStream;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.HashSet;
+
+/**
+ * Identity of a {@code iface}, defined by the set of {@link NetworkIdentity}
+ * active on that interface.
+ *
+ * @hide
+ */
+public class NetworkIdentitySet extends HashSet<NetworkIdentity> implements
+        Comparable<NetworkIdentitySet> {
+    private static final int VERSION_INIT = 1;
+    private static final int VERSION_ADD_ROAMING = 2;
+    private static final int VERSION_ADD_NETWORK_ID = 3;
+    private static final int VERSION_ADD_METERED = 4;
+    private static final int VERSION_ADD_DEFAULT_NETWORK = 5;
+    private static final int VERSION_ADD_OEM_MANAGED_NETWORK = 6;
+
+    public NetworkIdentitySet() {
+    }
+
+    public NetworkIdentitySet(DataInput in) throws IOException {
+        final int version = in.readInt();
+        final int size = in.readInt();
+        for (int i = 0; i < size; i++) {
+            if (version <= VERSION_INIT) {
+                final int ignored = in.readInt();
+            }
+            final int type = in.readInt();
+            final int subType = in.readInt();
+            final String subscriberId = readOptionalString(in);
+            final String networkId;
+            if (version >= VERSION_ADD_NETWORK_ID) {
+                networkId = readOptionalString(in);
+            } else {
+                networkId = null;
+            }
+            final boolean roaming;
+            if (version >= VERSION_ADD_ROAMING) {
+                roaming = in.readBoolean();
+            } else {
+                roaming = false;
+            }
+
+            final boolean metered;
+            if (version >= VERSION_ADD_METERED) {
+                metered = in.readBoolean();
+            } else {
+                // If this is the old data and the type is mobile, treat it as metered. (Note that
+                // if this is a mobile network, TYPE_MOBILE is the only possible type that could be
+                // used.)
+                metered = (type == TYPE_MOBILE);
+            }
+
+            final boolean defaultNetwork;
+            if (version >= VERSION_ADD_DEFAULT_NETWORK) {
+                defaultNetwork = in.readBoolean();
+            } else {
+                defaultNetwork = true;
+            }
+
+            final int oemNetCapabilities;
+            if (version >= VERSION_ADD_OEM_MANAGED_NETWORK) {
+                oemNetCapabilities = in.readInt();
+            } else {
+                oemNetCapabilities = NetworkIdentity.OEM_NONE;
+            }
+
+            add(new NetworkIdentity(type, subType, subscriberId, networkId, roaming, metered,
+                    defaultNetwork, oemNetCapabilities));
+        }
+    }
+
+    /**
+     * Method to serialize this object into a {@code DataOutput}.
+     */
+    public void writeToStream(DataOutput out) throws IOException {
+        out.writeInt(VERSION_ADD_OEM_MANAGED_NETWORK);
+        out.writeInt(size());
+        for (NetworkIdentity ident : this) {
+            out.writeInt(ident.getType());
+            out.writeInt(ident.getSubType());
+            writeOptionalString(out, ident.getSubscriberId());
+            writeOptionalString(out, ident.getNetworkId());
+            out.writeBoolean(ident.getRoaming());
+            out.writeBoolean(ident.getMetered());
+            out.writeBoolean(ident.getDefaultNetwork());
+            out.writeInt(ident.getOemManaged());
+        }
+    }
+
+    /** @return whether any {@link NetworkIdentity} in this set is considered metered. */
+    public boolean isAnyMemberMetered() {
+        if (isEmpty()) {
+            return false;
+        }
+        for (NetworkIdentity ident : this) {
+            if (ident.getMetered()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /** @return whether any {@link NetworkIdentity} in this set is considered roaming. */
+    public boolean isAnyMemberRoaming() {
+        if (isEmpty()) {
+            return false;
+        }
+        for (NetworkIdentity ident : this) {
+            if (ident.getRoaming()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /** @return whether any {@link NetworkIdentity} in this set is considered on the default
+            network. */
+    public boolean areAllMembersOnDefaultNetwork() {
+        if (isEmpty()) {
+            return true;
+        }
+        for (NetworkIdentity ident : this) {
+            if (!ident.getDefaultNetwork()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    private static void writeOptionalString(DataOutput out, String value) throws IOException {
+        if (value != null) {
+            out.writeByte(1);
+            out.writeUTF(value);
+        } else {
+            out.writeByte(0);
+        }
+    }
+
+    private static String readOptionalString(DataInput in) throws IOException {
+        if (in.readByte() != 0) {
+            return in.readUTF();
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public int compareTo(NetworkIdentitySet another) {
+        if (isEmpty()) return -1;
+        if (another.isEmpty()) return 1;
+
+        final NetworkIdentity ident = iterator().next();
+        final NetworkIdentity anotherIdent = another.iterator().next();
+        return ident.compareTo(anotherIdent);
+    }
+
+    /**
+     * Method to dump this object into proto debug file.
+     */
+    public void dumpDebug(ProtoOutputStream proto, long tag) {
+        final long start = proto.start(tag);
+
+        for (NetworkIdentity ident : this) {
+            ident.dumpDebug(proto, NetworkIdentitySetProto.IDENTITIES);
+        }
+
+        proto.end(start);
+    }
+}