1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.phone.sip; 18 19 import com.android.internal.os.AtomicFile; 20 21 import android.content.Context; 22 import android.net.sip.SipProfile; 23 import android.util.Log; 24 25 import java.io.File; 26 import java.io.FileInputStream; 27 import java.io.FileOutputStream; 28 import java.io.IOException; 29 import java.io.ObjectInputStream; 30 import java.io.ObjectOutputStream; 31 import java.util.ArrayList; 32 import java.util.Collections; 33 import java.util.List; 34 35 /** 36 * Utility class that helps perform operations on the SipProfile database. 37 */ 38 public class SipProfileDb { 39 private static final String TAG = SipProfileDb.class.getSimpleName(); 40 41 private static final String PROFILES_DIR = "/profiles/"; 42 private static final String PROFILE_OBJ_FILE = ".pobj"; 43 44 private String mProfilesDirectory; 45 private SipSharedPreferences mSipSharedPreferences; 46 private int mProfilesCount = -1; 47 SipProfileDb(Context context)48 public SipProfileDb(Context context) { 49 mProfilesDirectory = context.getFilesDir().getAbsolutePath() 50 + PROFILES_DIR; 51 mSipSharedPreferences = new SipSharedPreferences(context); 52 } 53 deleteProfile(SipProfile p)54 public void deleteProfile(SipProfile p) { 55 synchronized(SipProfileDb.class) { 56 deleteProfile(new File(mProfilesDirectory + p.getProfileName())); 57 if (mProfilesCount < 0) retrieveSipProfileListInternal(); 58 mSipSharedPreferences.setProfilesCount(--mProfilesCount); 59 } 60 } 61 deleteProfile(File file)62 private void deleteProfile(File file) { 63 if (file.isDirectory()) { 64 for (File child : file.listFiles()) deleteProfile(child); 65 } 66 file.delete(); 67 } 68 saveProfile(SipProfile p)69 public void saveProfile(SipProfile p) throws IOException { 70 synchronized(SipProfileDb.class) { 71 if (mProfilesCount < 0) retrieveSipProfileListInternal(); 72 File f = new File(mProfilesDirectory + p.getProfileName()); 73 if (!f.exists()) f.mkdirs(); 74 AtomicFile atomicFile = 75 new AtomicFile(new File(f, PROFILE_OBJ_FILE)); 76 FileOutputStream fos = null; 77 ObjectOutputStream oos = null; 78 try { 79 fos = atomicFile.startWrite(); 80 oos = new ObjectOutputStream(fos); 81 oos.writeObject(p); 82 oos.flush(); 83 mSipSharedPreferences.setProfilesCount(++mProfilesCount); 84 atomicFile.finishWrite(fos); 85 } catch (IOException e) { 86 atomicFile.failWrite(fos); 87 throw e; 88 } finally { 89 if (oos != null) oos.close(); 90 } 91 } 92 } 93 getProfilesCount()94 public int getProfilesCount() { 95 return (mProfilesCount < 0) ? 96 mSipSharedPreferences.getProfilesCount() : mProfilesCount; 97 } 98 retrieveSipProfileList()99 public List<SipProfile> retrieveSipProfileList() { 100 synchronized(SipProfileDb.class) { 101 return retrieveSipProfileListInternal(); 102 } 103 } 104 retrieveSipProfileListInternal()105 private List<SipProfile> retrieveSipProfileListInternal() { 106 List<SipProfile> sipProfileList = Collections.synchronizedList( 107 new ArrayList<SipProfile>()); 108 109 File root = new File(mProfilesDirectory); 110 String[] dirs = root.list(); 111 if (dirs == null) return sipProfileList; 112 for (String dir : dirs) { 113 File f = new File(new File(root, dir), PROFILE_OBJ_FILE); 114 if (!f.exists()) continue; 115 try { 116 SipProfile p = deserialize(f); 117 if (p == null) continue; 118 if (!dir.equals(p.getProfileName())) continue; 119 120 sipProfileList.add(p); 121 } catch (IOException e) { 122 Log.e(TAG, "retrieveProfileListFromStorage()", e); 123 } 124 } 125 mProfilesCount = sipProfileList.size(); 126 mSipSharedPreferences.setProfilesCount(mProfilesCount); 127 return sipProfileList; 128 } 129 deserialize(File profileObjectFile)130 private SipProfile deserialize(File profileObjectFile) throws IOException { 131 AtomicFile atomicFile = new AtomicFile(profileObjectFile); 132 ObjectInputStream ois = null; 133 try { 134 ois = new ObjectInputStream(atomicFile.openRead()); 135 SipProfile p = (SipProfile) ois.readObject(); 136 return p; 137 } catch (ClassNotFoundException e) { 138 Log.w(TAG, "deserialize a profile: " + e); 139 } finally { 140 if (ois!= null) ois.close(); 141 } 142 return null; 143 } 144 } 145