1/*
2 * Copyright (C) 2013 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
17package com.android.server.telecom;
18
19import android.content.ComponentName;
20import android.content.Context;
21import android.os.UserHandle;
22import android.util.Pair;
23
24import com.android.internal.annotations.VisibleForTesting;
25import com.android.internal.util.IndentingPrintWriter;
26
27import java.util.HashMap;
28
29/**
30 * Searches for and returns connection services.
31 */
32@VisibleForTesting
33public class ConnectionServiceRepository {
34    private final HashMap<Pair<ComponentName, UserHandle>, ConnectionServiceWrapper> mServiceCache =
35            new HashMap<>();
36    private final PhoneAccountRegistrar mPhoneAccountRegistrar;
37    private final Context mContext;
38    private final TelecomSystem.SyncRoot mLock;
39    private final CallsManager mCallsManager;
40
41    private final ServiceBinder.Listener<ConnectionServiceWrapper> mUnbindListener =
42            new ServiceBinder.Listener<ConnectionServiceWrapper>() {
43                @Override
44                public void onUnbind(ConnectionServiceWrapper service) {
45                    synchronized (mLock) {
46                        mServiceCache.remove(service.getComponentName());
47                    }
48                }
49            };
50
51    ConnectionServiceRepository(
52            PhoneAccountRegistrar phoneAccountRegistrar,
53            Context context,
54            TelecomSystem.SyncRoot lock,
55            CallsManager callsManager) {
56        mPhoneAccountRegistrar = phoneAccountRegistrar;
57        mContext = context;
58        mLock = lock;
59        mCallsManager = callsManager;
60    }
61
62    @VisibleForTesting
63    public ConnectionServiceWrapper getService(ComponentName componentName, UserHandle userHandle) {
64        Pair<ComponentName, UserHandle> cacheKey = Pair.create(componentName, userHandle);
65        ConnectionServiceWrapper service = mServiceCache.get(cacheKey);
66        if (service == null) {
67            service = new ConnectionServiceWrapper(
68                    componentName,
69                    this,
70                    mPhoneAccountRegistrar,
71                    mCallsManager,
72                    mContext,
73                    mLock,
74                    userHandle);
75            service.addListener(mUnbindListener);
76            mServiceCache.put(cacheKey, service);
77        }
78        return service;
79    }
80
81    /**
82     * Dumps the state of the {@link ConnectionServiceRepository}.
83     *
84     * @param pw The {@code IndentingPrintWriter} to write the state to.
85     */
86    public void dump(IndentingPrintWriter pw) {
87        pw.println("mServiceCache:");
88        pw.increaseIndent();
89        for (Pair<ComponentName, UserHandle> cacheKey : mServiceCache.keySet()) {
90            ComponentName componentName = cacheKey.first;
91            pw.println(componentName);
92        }
93        pw.decreaseIndent();
94    }
95}
96