Android example source code file (SimSmsInterfaceManager.java)

This example Android source code file (SimSmsInterfaceManager.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, asyncresult, content, context, dbg, error, event_load_done, event_update_done, handler, interruptedexception, list, message, object, os, sim, simsmsinterfacemanager, telephony, updating, util, utilities

The SimSmsInterfaceManager.java Android example source code

/*
** Copyright 2007, 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.internal.telephony.gsm;

import android.content.Context;
import android.os.AsyncResult;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

import com.android.internal.telephony.IccConstants;
import com.android.internal.telephony.IccSmsInterfaceManager;
import com.android.internal.telephony.IccUtils;
import com.android.internal.telephony.SmsRawData;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static android.telephony.SmsManager.STATUS_ON_ICC_FREE;

/**
 * SimSmsInterfaceManager to provide an inter-process communication to
 * access Sms in Sim.
 */
public class SimSmsInterfaceManager extends IccSmsInterfaceManager {
    static final String LOG_TAG = "GSM";
    static final boolean DBG = true;

    private final Object mLock = new Object();
    private boolean mSuccess;
    private List<SmsRawData> mSms;

    private static final int EVENT_LOAD_DONE = 1;
    private static final int EVENT_UPDATE_DONE = 2;

    Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            AsyncResult ar;

            switch (msg.what) {
                case EVENT_UPDATE_DONE:
                    ar = (AsyncResult) msg.obj;
                    synchronized (mLock) {
                        mSuccess = (ar.exception == null);
                        mLock.notifyAll();
                    }
                    break;
                case EVENT_LOAD_DONE:
                    ar = (AsyncResult)msg.obj;
                    synchronized (mLock) {
                        if (ar.exception == null) {
                            mSms  = buildValidRawData((ArrayList<byte[]>) ar.result);
                        } else {
                            if(DBG) log("Cannot load Sms records");
                            if (mSms != null)
                                mSms.clear();
                        }
                        mLock.notifyAll();
                    }
                    break;
            }
        }
    };

    public SimSmsInterfaceManager(GSMPhone phone) {
        super(phone);
        mDispatcher = new GsmSMSDispatcher(phone);
    }

    public void dispose() {
    }

    protected void finalize() {
        try {
            super.finalize();
        } catch (Throwable throwable) {
            Log.e(LOG_TAG, "Error while finalizing:", throwable);
        }
        if(DBG) Log.d(LOG_TAG, "SimSmsInterfaceManager finalized");
    }

    /**
     * Update the specified message on the SIM.
     *
     * @param index record index of message to update
     * @param status new message status (STATUS_ON_ICC_READ,
     *                  STATUS_ON_ICC_UNREAD, STATUS_ON_ICC_SENT,
     *                  STATUS_ON_ICC_UNSENT, STATUS_ON_ICC_FREE)
     * @param pdu the raw PDU to store
     * @return success or not
     *
     */
    public boolean
    updateMessageOnIccEf(int index, int status, byte[] pdu) {
        if (DBG) log("updateMessageOnIccEf: index=" + index +
                " status=" + status + " ==> " +
                "("+ Arrays.toString(pdu) + ")");
        enforceReceiveAndSend("Updating message on SIM");
        synchronized(mLock) {
            mSuccess = false;
            Message response = mHandler.obtainMessage(EVENT_UPDATE_DONE);

            if (status == STATUS_ON_ICC_FREE) {
                // Special case FREE: call deleteSmsOnSim instead of
                // manipulating the SIM record
                mPhone.mCM.deleteSmsOnSim(index, response);
            } else {
                byte[] record = makeSmsRecordData(status, pdu);
                mPhone.getIccFileHandler().updateEFLinearFixed(
                        IccConstants.EF_SMS,
                        index, record, null, response);
            }
            try {
                mLock.wait();
            } catch (InterruptedException e) {
                log("interrupted while trying to update by index");
            }
        }
        return mSuccess;
    }

    /**
     * Copy a raw SMS PDU to the SIM.
     *
     * @param pdu the raw PDU to store
     * @param status message status (STATUS_ON_ICC_READ, STATUS_ON_ICC_UNREAD,
     *               STATUS_ON_ICC_SENT, STATUS_ON_ICC_UNSENT)
     * @return success or not
     *
     */
    public boolean copyMessageToIccEf(int status, byte[] pdu, byte[] smsc) {
        if (DBG) log("copyMessageToIccEf: status=" + status + " ==> " +
                "pdu=("+ Arrays.toString(pdu) +
                "), smsm=(" + Arrays.toString(smsc) +")");
        enforceReceiveAndSend("Copying message to SIM");
        synchronized(mLock) {
            mSuccess = false;
            Message response = mHandler.obtainMessage(EVENT_UPDATE_DONE);

            mPhone.mCM.writeSmsToSim(status, IccUtils.bytesToHexString(smsc),
                    IccUtils.bytesToHexString(pdu), response);

            try {
                mLock.wait();
            } catch (InterruptedException e) {
                log("interrupted while trying to update by index");
            }
        }
        return mSuccess;
    }

    /**
     * Retrieves all messages currently stored on ICC.
     *
     * @return list of SmsRawData of all sms on ICC
     */
    public List<SmsRawData> getAllMessagesFromIccEf() {
        if (DBG) log("getAllMessagesFromEF");

        Context context = mPhone.getContext();

        context.enforceCallingPermission(
                "android.permission.RECEIVE_SMS",
                "Reading messages from SIM");
        synchronized(mLock) {
            Message response = mHandler.obtainMessage(EVENT_LOAD_DONE);
            mPhone.getIccFileHandler().loadEFLinearFixedAll(IccConstants.EF_SMS, response);

            try {
                mLock.wait();
            } catch (InterruptedException e) {
                log("interrupted while trying to load from the SIM");
            }
        }
        return mSms;
    }

    protected void log(String msg) {
        Log.d(LOG_TAG, "[SimSmsInterfaceManager] " + msg);
    }
}