卡联系人IccProvider

IccProvider概述

读取卡联系人的provider定义于：

/packages/services/Telephony/AndroidManifest.xml

packages/services/Telephony/src/com/android/phone/IccProvider.java

public class IccProvider extends com.android.internal.telephony.IccProvider {
    public IccProvider() {
        super();
    }
}

Telephony目录下的IccProvider其实是空的，实现全部在framework的同名文件中

frameworks/opt/telephony/src/java/com/android/internal/telephony/IccProvider.java

public class IccProvider extends ContentProvider {

IccProvider读取卡联系人流程

    static {
        URL_MATCHER.addURI("icc", "adn", ADN);
        URL_MATCHER.addURI("icc", "adn/subId/#", ADN_SUB);
        ...
    }

static块中加入了adn的uri，adn/subid/#可以指定读取的sim卡

  public Cursor query(Uri url, String[] projection, String selection,
            String[] selectionArgs, String sort) {
        ...
        switch (URL_MATCHER.match(url)) {
          case ADN:
              return loadFromEf(IccConstants.EF_ADN, mSubscriptionManager.getDefaultSubId());
        ...
  }

query方法，调用loadFromEf

  private MatrixCursor loadFromEf(int efType, int subId) {

        List adnRecords = null;
        try {
            IIccPhoneBook iccIpb = getIccPhbService();
            if (iccIpb != null) {
                adnRecords = iccIpb.getAdnRecordsInEfForSubscriber(subId, efType);
            }
        } catch (RemoteException ex) {
            log(ex.toString());
        } catch (SecurityException ex) {
            log(ex.toString());
        }

        if (adnRecords != null) {
            // Load the results
            final int size = adnRecords.size();
            final MatrixCursor cursor = new MatrixCursor(ADDRESS_BOOK_COLUMN_NAMES, size);
            if (DBG) {
                log("adnRecords.size=" + size);
            }
            for (int i = 0; i < size; i++) {
                loadRecord(adnRecords.get(i), cursor, i);
            }
            return cursor;
        }
        ...
  }

首先获取AdnRecord列表然后，然后loadRecord依据这个列表生成cursor返回。生成cursor的函数很简单，不做分析了。

    private IIccPhoneBook getIccPhbService() {
        IIccPhoneBook iccIpb = IIccPhoneBook.Stub.asInterface(
                ServiceManager.getService("simphonebook"));

        return iccIpb;
    }

读取的服务名称叫做simphonebook，该服务添加的代码在UiccPhoneBookController中：

frameworks/opt/telephony/src/java/com/android/internal/telephony/UiccPhoneBookController.java

    public UiccPhoneBookController(Phone[] phone) {
        if (ServiceManager.getService("simphonebook") == null) {
               ServiceManager.addService("simphonebook", this);
        }
        mPhone = phone;
    }

构造函数中添加了服务，UiccPhoneBookController实例是在phone进程启动就初始化的，phone进程又是常驻的，所以phone的相关服务基本等于是永远可用的。

    public List getAdnRecordsInEfForSubscriber(int subId, int efid)
           throws android.os.RemoteException {
        IccPhoneBookInterfaceManagerProxy iccPbkIntMgrProxy =
                             getIccPhoneBookInterfaceManagerProxy(subId);
        if (iccPbkIntMgrProxy != null) {
            return iccPbkIntMgrProxy.getAdnRecordsInEf(efid);
        } 
        ...
    }

然后调用IccPhoneBookInterfaceManagerProxy的getAdnRecordsInEf

  private IccPhoneBookInterfaceManagerProxy
            getIccPhoneBookInterfaceManagerProxy(int subId) {
        ...
        try {
            return ((PhoneProxy)mPhone[(int)phoneId]).getIccPhoneBookInterfaceManagerProxy();
        ...
  }

frameworks/opt/telephony/src/java/com/android/internal/telephony/PhoneProxy.java

    public IccPhoneBookInterfaceManagerProxy getIccPhoneBookInterfaceManagerProxy() {
        return mIccPhoneBookInterfaceManagerProxy;
    }

  public PhoneProxy(PhoneBase phone) {
        ...
        mIccPhoneBookInterfaceManagerProxy = new IccPhoneBookInterfaceManagerProxy(
                phone.getIccPhoneBookInterfaceManager());
        ...
  }

IccPhoneBookInterfaceManagerProxy是在PhoneProxy构造函数中初始化的。

frameworks/opt/telephony/src/java/com/android/internal/telephony/IccPhoneBookInterfaceManagerProxy.java

   public List getAdnRecordsInEf(int efid) {
        return mIccPhoneBookInterfaceManager.getAdnRecordsInEf(efid);
    }

这里的mIccPhoneBookInterfaceManager就是PhoneProxy构造函数传递进去的phone.getIccPhoneBookInterfaceManager()

该对象实际是在Phone的构造函数中初始化的，拿GsmPhone举例

frameworks/opt/telephony/src/java/com/android/internal/telephony/gsm/GSMPhone.java

            mSimPhoneBookIntManager = new SimPhoneBookInterfaceManager(this);

SimPhoneBookInterfaceManager的基类是IccPhoneBookInterfaceManager

/home/lgy/code/mtk6797/frameworks/opt/telephony/src/java/com/android/internal/telephony/IccPhoneBookInterfaceManager.java

    public synchronized List getAdnRecordsInEf(int efid) {
        ...
        synchronized (mLock) {
            checkThread();
            AtomicBoolean status = new AtomicBoolean(false);
            Message response = mBaseHandler.obtainMessage(EVENT_LOAD_DONE, status);
            if (mAdnCache != null) {
                mAdnCache.requestLoadAllAdnLike(efid, mAdnCache.extensionEfForEf(efid), response);
                waitForResult(status);
            }
            ...
        }
        return mRecords;
    }

frameworks/opt/telephony/src/java/com/android/internal/telephony/uicc/AdnRecordCache.java

   public void
    requestLoadAllAdnLike (int efid, int extensionEf, Message response) {
        ArrayList waiters;
        ArrayList result;
        if (efid == EF_PBR) {
            result = mUsimPhoneBookManager.loadEfFilesFromUsim();
        } else {
            result = getRecordsIfLoaded(efid); //该方法实际是从缓存读取数据
        }
        logd("requestLoadAllAdnLike result = null ?" + (result == null));

        // Have we already loaded this efid?
        if (result != null) {   //如果缓存已有数据，return
            if (response != null) {
                AsyncResult.forMessage(response).result = result;
                response.sendToTarget();
            }

            return;
        }

        // Have we already *started* loading this efid?

        waiters = mAdnLikeWaiters.get(efid);

        if (waiters != null) { //正在读取中，把回调消息加入等待队列中，return
            waiters.add(response);
            return;
        }

        waiters = new ArrayList();
        waiters.add(response);

        mAdnLikeWaiters.put(efid, waiters);
        ...

        new AdnRecordLoader(mFh).loadAllFromEF(efid, extensionEf,
            obtainMessage(EVENT_LOAD_ALL_ADN_LIKE_DONE, efid, 0));  //正真读取
    }

流程分析已经写在注释中，usim是另一条分支（本流程不做解析），继续看loadAllFromEF

frameworks/opt/telephony/src/java/com/android/internal/telephony/uicc/AdnRecordLoader.java

   public void
    loadAllFromEF(int ef, int extensionEF,
                Message response) {
          ...
          mFh.mCi.queryPhbStorageInfo(
               type,
               obtainMessage(EVENT_PHB_QUERY_STAUTS));
          ...
    }

调用ril的queryPhbStorageInfo向modem发送请求，读取结果会在handleMessage中处理

                case EVENT_PHB_QUERY_STAUTS:
                    /*
                     * response.obj.result[0] is number of current used entries
                     * response.obj.result[1] is number of total entries in the
                     * storage
                     */

                    ar = (AsyncResult) (msg.obj);
                    int[] info = (int[]) (ar.result);

                    if (ar.exception != null) {
                        throw new RuntimeException("PHB Query Info Error",
                                ar.exception);
                    }

                    type = getPhbStorageType(mEf);
                    readInfo = new int[3];
                    readInfo[0] = 1; // current_index;
                    readInfo[1] = info[0]; // # of remaining entries
                    readInfo[2] = info[1]; // # of total entries

                    mAdns = new ArrayList(readInfo[2]);
                    for (int i = 0; i < readInfo[2]; i++) {
                        // fillin empty entries to mAdns
                        adn = new AdnRecord(mEf, i + 1, "", "");
                        mAdns.add(i, adn);
                    }

                    readEntryFromModem(type, readInfo);
                    mPendingExtLoads = 1;
                    break;

获取到了卡联系人总数目，先用空值初始化mAdn列表，然后调用readEntryFromModem正真的读取数据

    private void readEntryFromModem(int type, int[] readInfo) {
        ...
        mFh.mCi.ReadPhbEntry(type, readInfo[0], eIndex,
                obtainMessage(EVENT_PHB_LOAD_ALL_DONE, readInfo));
    }

消息处理：

          case EVENT_PHB_LOAD_ALL_DONE:
                    ar = (AsyncResult) (msg.obj);
                    readInfo = (int[]) (ar.userObj);
                    entries = (PhbEntry[]) (ar.result);
                    ...

                    for (int i = 0; i < entries.length; i++) {
                        adn = getAdnRecordFromPhbEntry(entries[i]);
                        if (adn != null) {
                            mAdns.set(adn.mRecordNumber - 1, adn);
                            readInfo[1]--;
                            Rlog.d(LOG_TAG, "Read entries: " + adn);

                        }
                    }
                    ...

for循环中向mAdns添加数据。AdnRecordLoader会向AdnRecordCache发消息，EVENT_LOAD_ALL_ADN_LIKE_DONE消息处理：

            case EVENT_LOAD_ALL_ADN_LIKE_DONE:
                ...

                if (ar.exception == null) {
                    mAdnLikeFiles.put(efid, (ArrayList) ar.result);
                } else {
                    Rlog.d(LOG_TAG, "EVENT_LOAD_ALL_ADN_LIKE_DONE exception", ar.exception);
                }
                notifyWaiters(waiters, ar);
                ...
                break;

一路向上传递消息，这里的ar其实就包含了联系人数据列表ArrayList

回到IccPhoneBookInterfaceManager.java

                case EVENT_LOAD_DONE:
                    ar = (AsyncResult)msg.obj;
                    ...
                       mRecords = (List) ar.result;
                    ...

整个流程走完了。可以看出名称叫做IccProvider，其实没有建立任何数据库。第一次的查询是通过发送ril请求读取sim卡得到数据，后续用缓存返回数据。

Contacts读取Sim卡联系人的流程

分析的以mtk的代码为例，高通的代码和mtk差异很大，且不在Contacts目录下。是在vendor目录下，单独作为一个app。

/home/lgy/code/mtk6797/packages/apps/Contacts/AndroidManifest.xml

packages/apps/Contacts/src/com/mediatek/contacts/simcontact/BootCmpReceiver.java

public void onReceive(Context context, Intent intent) {
    ...
    if (action.equals(TelephonyIntents.ACTION_PHB_STATE_CHANGED)) {
                processPhoneBookChanged(context, intent);
            }
    ...
}

收到TelephonyIntents.ACTION_PHB_STATE_CHANGED广播后，该广播表示卡联系人可用不可用，调用processPhoneBookChanged

 private void processPhoneBookChanged(Context context, Intent intent) {
        ...
        if (phbReady && subId > 0) {
            startSimService(context, subId, SIMServiceUtils.SERVICE_WORK_IMPORT);
        } else if (subId > 0 && !phbReady) {
            startSimService(context, subId, SIMServiceUtils.SERVICE_WORK_REMOVE);
        }
    }

广播处理有两个分支，一个是删除卡联系人，一个是导入卡联系人

packages/apps/Contacts/src/com/mediatek/contacts/simservice/SIMProcessorService.java

    @Override
    public void onCreate() {
        super.onCreate();
        Log.i(TAG, "[onCreate]...");
        mProcessorManager = new SIMProcessorManager(this, mListener);
    }

    @Override
    public void onStart(Intent intent, int startId) {
        super.onStart(intent, startId);
        processIntent(intent);
    }

 private void processIntent(Intent intent) {
        ...
        mProcessorManager.handleProcessor(getApplicationContext(), subId, workType, intent);
    }

一路调用到handleProcessor，注意mProcessorManager初始化的时候传入了接口的实现，这样mProcessorManager就可以通知SIMProcessorService工作开始或者完毕

private SIMProcessorManager.ProcessorManagerListener mListener 

packages/apps/Contacts/src/com/mediatek/contacts/simservice/SIMProcessorManager.java

    public void handleProcessor(Context context, int subId, int workType, Intent intent) {
        Log.i(TAG, "[handleProcessor] subId=" + subId + ",time=" + System.currentTimeMillis());
        SIMProcessorBase processor = createProcessor(context, subId, workType, intent);
        if (processor != null && mListener != null) {
            Log.d(TAG, "[handleProcessor]Add processor [subId=" + subId + "] to threadPool.");
            mListener.addProcessor(/* 1000 + slotId * 300 */0, processor);
        }
    }

    private SIMProcessorBase createProcessor(Context context, int subId, int workType,
            Intent intent, ProcessorCompleteListener listener) {
        ...
        if (workType == SIMServiceUtils.SERVICE_WORK_IMPORT) {
            processor = new SIMImportProcessor(context, subId, intent, listener);
        ...
    }

createProcessor生成了processor，然后调用mListener的方法，这个就是SIMProcessorService中实现的，addProcessor开始导入联系人的工作：

     @Override
        public void addProcessor(long scheduleTime, ProcessorBase processor) {
            if (processor != null) {
                try {
                    mExecutorService.execute(processor);
                } catch (RejectedExecutionException e) {
                    Log.e(TAG, "[addProcessor] RejectedExecutionException: " + e.toString());
                }
            }
        }

processor是继承自ProcessorBase。

packages/apps/ContactsCommon/src/com/android/contacts/common/vcard/ProcessorBase.java

public abstract class ProcessorBase implements RunnableFuture