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/*
* Copyright (C) 2010 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.services.telephony.sip;
import com.android.internal.os.AtomicFile;
import android.content.Context;
import android.net.sip.SipProfile;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Utility class that helps perform operations on the SipProfile database.
*/
public class SipProfileDb {
private static final String PREFIX = "[SipProfileDb] ";
private static final boolean VERBOSE = true; /* STOP SHIP if true */
private static final String PROFILES_DIR = "/profiles/";
private static final String PROFILE_OBJ_FILE = ".pobj";
private String mProfilesDirectory;
private SipSharedPreferences mSipSharedPreferences;
private int mProfilesCount = -1;
public SipProfileDb(Context context) {
mProfilesDirectory = context.getFilesDir().getAbsolutePath() + PROFILES_DIR;
mSipSharedPreferences = new SipSharedPreferences(context);
}
public void deleteProfile(SipProfile p) {
synchronized(SipProfileDb.class) {
deleteProfile(new File(mProfilesDirectory + p.getProfileName()));
if (mProfilesCount < 0) retrieveSipProfileListInternal();
mSipSharedPreferences.setProfilesCount(--mProfilesCount);
}
}
private void deleteProfile(File file) {
if (file.isDirectory()) {
for (File child : file.listFiles()) deleteProfile(child);
}
file.delete();
}
public void saveProfile(SipProfile p) throws IOException {
synchronized(SipProfileDb.class) {
if (mProfilesCount < 0) retrieveSipProfileListInternal();
File f = new File(mProfilesDirectory + p.getProfileName());
if (!f.exists()) f.mkdirs();
AtomicFile atomicFile = new AtomicFile(new File(f, PROFILE_OBJ_FILE));
FileOutputStream fos = null;
ObjectOutputStream oos = null;
try {
fos = atomicFile.startWrite();
oos = new ObjectOutputStream(fos);
oos.writeObject(p);
oos.flush();
mSipSharedPreferences.setProfilesCount(++mProfilesCount);
atomicFile.finishWrite(fos);
} catch (IOException e) {
atomicFile.failWrite(fos);
throw e;
} finally {
if (oos != null) oos.close();
}
}
}
public int getProfilesCount() {
return (mProfilesCount < 0) ? mSipSharedPreferences.getProfilesCount() : mProfilesCount;
}
public List<SipProfile> retrieveSipProfileList() {
synchronized(SipProfileDb.class) {
return retrieveSipProfileListInternal();
}
}
private List<SipProfile> retrieveSipProfileListInternal() {
List<SipProfile> sipProfileList = Collections.synchronizedList(
new ArrayList<SipProfile>());
File root = new File(mProfilesDirectory);
String[] dirs = root.list();
if (dirs == null) return sipProfileList;
for (String dir : dirs) {
File f = new File(new File(root, dir), PROFILE_OBJ_FILE);
if (!f.exists()) continue;
try {
SipProfile p = deserialize(f);
if (p == null) continue;
if (!dir.equals(p.getProfileName())) continue;
sipProfileList.add(p);
} catch (IOException e) {
log("retrieveSipProfileListInternal, exception: " + e);
}
}
mProfilesCount = sipProfileList.size();
mSipSharedPreferences.setProfilesCount(mProfilesCount);
return sipProfileList;
}
private SipProfile deserialize(File profileObjectFile) throws IOException {
AtomicFile atomicFile = new AtomicFile(profileObjectFile);
ObjectInputStream ois = null;
try {
ois = new ObjectInputStream(atomicFile.openRead());
SipProfile p = (SipProfile) ois.readObject();
return p;
} catch (ClassNotFoundException e) {
log("deserialize, exception: " + e);
} finally {
if (ois!= null) ois.close();
}
return null;
}
private static void log(String msg) {
Log.d(SipUtil.LOG_TAG, PREFIX + msg);
}
}
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