[Settings] Present EID in About phone page

Present EID within about phone page.

Bug: 260540995
Test: local

Change-Id: If5f512c1da6b4b3b1adc1d13dbe11226b7ecad41

src/com/android/settings/deviceinfo/simstatus/EidStatus.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2022 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 com.android.settings.deviceinfo.simstatus;
+
+import android.content.Context;
+import android.telephony.SubscriptionInfo;
+import android.telephony.TelephonyManager;
+import android.telephony.UiccCardInfo;
+import android.telephony.euicc.EuiccManager;
+import android.text.TextUtils;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Phaser;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.stream.IntStream;
+
+/**
+ * A class for query EID.
+ */
+public class EidStatus {
+
+    private static final String TAG = "EidStatus";
+    private final SlotSimStatus mSlotSimStatus;
+    private final Phaser mBlocker = new Phaser(1);
+    private final AtomicReference<String> mEid = new AtomicReference<String>();
+
+    /**
+     * Construct of class.
+     * @param slotSimStatus SlotSimStatus
+     * @param context Context
+     */
+    public EidStatus(SlotSimStatus slotSimStatus, Context context) {
+        this(slotSimStatus, context, null);
+    }
+
+    /**
+     * Construct of class.
+     * @param slotSimStatus SlotSimStatus
+     * @param context Context
+     * @param executor executor for offload to thread
+     */
+    public EidStatus(SlotSimStatus slotSimStatus, Context context, Executor executor) {
+        mSlotSimStatus = slotSimStatus;
+
+        if (executor == null) {
+            getEidOperation(context);
+        } else {
+            executor.execute(() -> getEidOperation(context));
+        }
+    }
+
+    /**
+     * Get the EID
+     * @return EID string
+     */
+    public String getEid() {
+        mBlocker.awaitAdvance(0);
+        return mEid.get();
+    }
+
+    protected TelephonyManager getTelephonyManager(Context context) {
+        return context.getSystemService(TelephonyManager.class);
+    }
+
+    protected EuiccManager getEuiccManager(Context context) {
+        return context.getSystemService(EuiccManager.class);
+    }
+
+    protected String getDefaultEid(EuiccManager euiccMgr) {
+        if ((euiccMgr == null) || (!euiccMgr.isEnabled())) {
+            return null;
+        }
+        return euiccMgr.getEid();
+    }
+
+    protected void getEidOperation(Context context) {
+        EuiccManager euiccMgr = getEuiccManager(context);
+        String eid = getEidPerSlot(context, euiccMgr);
+        if (eid == null) {
+            eid = getDefaultEid(euiccMgr);
+        }
+        mEid.set(eid);
+        mBlocker.arrive();
+    }
+
+    protected String getEidPerSlot(Context context, EuiccManager euiccMgr) {
+        if (mSlotSimStatus.size() <= SimStatusDialogController.MAX_PHONE_COUNT_SINGLE_SIM) {
+            return null;
+        }
+
+        TelephonyManager telMgr = getTelephonyManager(context);
+        if (telMgr == null) {
+            return null;
+        }
+
+        List<UiccCardInfo> uiccCardInfoList = telMgr.getUiccCardsInfo();
+        if (uiccCardInfoList == null) {
+            return null;
+        }
+
+        // Collects all card ID from all eSIM(s) reported from SubscsriptionManager
+        final int [] cardIdList = IntStream.range(0, mSlotSimStatus.size())
+                .mapToObj(slotIdx -> mSlotSimStatus.getSubscriptionInfo(slotIdx))
+                .filter(Objects::nonNull)
+                .filter(SubscriptionInfo::isEmbedded)
+                .mapToInt(SubscriptionInfo::getCardId)
+                .sorted()
+                .distinct()
+                .toArray();
+        if (cardIdList.length == 0) {
+            return null;
+        }
+
+        /**
+         * Find EID from first slot which contains an eSIM and with card ID listed within
+         * the eSIM card ID provided by SubscsriptionManager.
+         */
+        return uiccCardInfoList.stream()
+                .filter(UiccCardInfo::isEuicc)
+                .filter(cardInfo -> {
+                    int cardId = cardInfo.getCardId();
+                    return Arrays.binarySearch(cardIdList, cardId) >= 0;
+                })
+                .map(cardInfo -> {
+                    String eid = cardInfo.getEid();
+                    if (TextUtils.isEmpty(eid)) {
+                        eid = euiccMgr.createForCardId(cardInfo.getCardId()).getEid();
+                    }
+                    return eid;
+                })
+                .findFirst()
+                .orElse(null);
+    }
+
+}