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ProviderMap.javaAPI DocAndroid 5.1 API16382Thu Mar 12 22:22:42 GMT 2015com.android.server.am

ProviderMap

public final class ProviderMap extends Object
Keeps track of content providers by authority (name) and class. It separates the mapping by user and ones that are not user-specific (system providers).

Fields Summary
private static final String
TAG
private static final boolean
DBG
private final ActivityManagerService
mAm
private final HashMap
mSingletonByName
private final HashMap
mSingletonByClass
private final android.util.SparseArray
mProvidersByNamePerUser
private final android.util.SparseArray
mProvidersByClassPerUser
Constructors Summary
ProviderMap(ActivityManagerService am)


      
        mAm = am;
Methods Summary
booleancollectForceStopProviders(java.lang.String name, int appId, boolean doit, boolean evenPersistent, int userId, java.util.ArrayList result)

        boolean didSomething = collectForceStopProvidersLocked(name, appId, doit,
                evenPersistent, userId, mSingletonByClass, result);
        if (!doit && didSomething) {
            return true;
        }
        if (userId == UserHandle.USER_ALL) {
            for (int i=0; i<mProvidersByClassPerUser.size(); i++) {
                if (collectForceStopProvidersLocked(name, appId, doit, evenPersistent,
                        userId, mProvidersByClassPerUser.valueAt(i), result)) {
                    if (!doit) {
                        return true;
                    }
                    didSomething = true;
                }
            }
        } else {
            HashMap<ComponentName, ContentProviderRecord> items
                    = getProvidersByClass(userId);
            if (items != null) {
                didSomething |= collectForceStopProvidersLocked(name, appId, doit,
                        evenPersistent, userId, items, result);
            }
        }
        return didSomething;
private booleancollectForceStopProvidersLocked(java.lang.String name, int appId, boolean doit, boolean evenPersistent, int userId, java.util.HashMap providers, java.util.ArrayList result)

        boolean didSomething = false;
        for (ContentProviderRecord provider : providers.values()) {
            if ((name == null || provider.info.packageName.equals(name))
                    && (provider.proc == null || evenPersistent || !provider.proc.persistent)) {
                if (!doit) {
                    return true;
                }
                didSomething = true;
                result.add(provider);
            }
        }
        return didSomething;
protected booleandumpProvider(java.io.FileDescriptor fd, java.io.PrintWriter pw, java.lang.String name, java.lang.String[] args, int opti, boolean dumpAll)

        ArrayList<ContentProviderRecord> allProviders = new ArrayList<ContentProviderRecord>();
        ArrayList<ContentProviderRecord> providers = new ArrayList<ContentProviderRecord>();

        synchronized (mAm) {
            allProviders.addAll(mSingletonByClass.values());
            for (int i=0; i<mProvidersByClassPerUser.size(); i++) {
                allProviders.addAll(mProvidersByClassPerUser.valueAt(i).values());
            }

            if ("all".equals(name)) {
                providers.addAll(allProviders);
            } else {
                ComponentName componentName = name != null
                        ? ComponentName.unflattenFromString(name) : null;
                int objectId = 0;
                if (componentName == null) {
                    // Not a '/' separated full component name; maybe an object ID?
                    try {
                        objectId = Integer.parseInt(name, 16);
                        name = null;
                        componentName = null;
                    } catch (RuntimeException e) {
                    }
                }

                for (int i=0; i<allProviders.size(); i++) {
                    ContentProviderRecord r1 = allProviders.get(i);
                    if (componentName != null) {
                        if (r1.name.equals(componentName)) {
                            providers.add(r1);
                        }
                    } else if (name != null) {
                        if (r1.name.flattenToString().contains(name)) {
                            providers.add(r1);
                        }
                    } else if (System.identityHashCode(r1) == objectId) {
                        providers.add(r1);
                    }
                }
            }
        }

        if (providers.size() <= 0) {
            return false;
        }

        boolean needSep = false;
        for (int i=0; i<providers.size(); i++) {
            if (needSep) {
                pw.println();
            }
            needSep = true;
            dumpProvider("", fd, pw, providers.get(i), args, dumpAll);
        }
        return true;
private voiddumpProvider(java.lang.String prefix, java.io.FileDescriptor fd, java.io.PrintWriter pw, ContentProviderRecord r, java.lang.String[] args, boolean dumpAll)
Invokes IApplicationThread.dumpProvider() on the thread of the specified provider if there is a thread associated with the provider.

        String innerPrefix = prefix + "  ";
        synchronized (mAm) {
            pw.print(prefix); pw.print("PROVIDER ");
                    pw.print(r);
                    pw.print(" pid=");
                    if (r.proc != null) pw.println(r.proc.pid);
                    else pw.println("(not running)");
            if (dumpAll) {
                r.dump(pw, innerPrefix, true);
            }
        }
        if (r.proc != null && r.proc.thread != null) {
            pw.println("    Client:");
            pw.flush();
            try {
                TransferPipe tp = new TransferPipe();
                try {
                    r.proc.thread.dumpProvider(
                            tp.getWriteFd().getFileDescriptor(), r.provider.asBinder(), args);
                    tp.setBufferPrefix("      ");
                    // Short timeout, since blocking here can
                    // deadlock with the application.
                    tp.go(fd, 2000);
                } finally {
                    tp.kill();
                }
            } catch (IOException ex) {
                pw.println("      Failure while dumping the provider: " + ex);
            } catch (RemoteException ex) {
                pw.println("      Got a RemoteException while dumping the service");
            }
        }
private booleandumpProvidersByClassLocked(java.io.PrintWriter pw, boolean dumpAll, java.lang.String dumpPackage, java.lang.String header, boolean needSep, java.util.HashMap map)

        Iterator<Map.Entry<ComponentName, ContentProviderRecord>> it = map.entrySet().iterator();
        boolean written = false;
        while (it.hasNext()) {
            Map.Entry<ComponentName, ContentProviderRecord> e = it.next();
            ContentProviderRecord r = e.getValue();
            if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) {
                continue;
            }
            if (needSep) {
                pw.println("");
                needSep = false;
            }
            if (header != null) {
                pw.println(header);
                header = null;
            }
            written = true;
            pw.print("  * ");
            pw.println(r);
            r.dump(pw, "    ", dumpAll);
        }
        return written;
private booleandumpProvidersByNameLocked(java.io.PrintWriter pw, java.lang.String dumpPackage, java.lang.String header, boolean needSep, java.util.HashMap map)

        Iterator<Map.Entry<String, ContentProviderRecord>> it = map.entrySet().iterator();
        boolean written = false;
        while (it.hasNext()) {
            Map.Entry<String, ContentProviderRecord> e = it.next();
            ContentProviderRecord r = e.getValue();
            if (dumpPackage != null && !dumpPackage.equals(r.appInfo.packageName)) {
                continue;
            }
            if (needSep) {
                pw.println("");
                needSep = false;
            }
            if (header != null) {
                pw.println(header);
                header = null;
            }
            written = true;
            pw.print("  ");
            pw.print(e.getKey());
            pw.print(": ");
            pw.println(r.toShortString());
        }
        return written;
booleandumpProvidersLocked(java.io.PrintWriter pw, boolean dumpAll, java.lang.String dumpPackage)

        boolean needSep = false;

        if (mSingletonByClass.size() > 0) {
            needSep |= dumpProvidersByClassLocked(pw, dumpAll, dumpPackage,
                    "  Published single-user content providers (by class):", needSep,
                    mSingletonByClass);
        }

        for (int i = 0; i < mProvidersByClassPerUser.size(); i++) {
            HashMap<ComponentName, ContentProviderRecord> map = mProvidersByClassPerUser.valueAt(i);
            needSep |= dumpProvidersByClassLocked(pw, dumpAll, dumpPackage,
                    "  Published user " + mProvidersByClassPerUser.keyAt(i)
                            + " content providers (by class):", needSep, map);
        }

        if (dumpAll) {
            needSep |= dumpProvidersByNameLocked(pw, dumpPackage,
                    "  Single-user authority to provider mappings:", needSep, mSingletonByName);

            for (int i = 0; i < mProvidersByNamePerUser.size(); i++) {
                needSep |= dumpProvidersByNameLocked(pw, dumpPackage,
                        "  User " + mProvidersByNamePerUser.keyAt(i)
                                + " authority to provider mappings:", needSep,
                        mProvidersByNamePerUser.valueAt(i));
            }
        }
        return needSep;
ContentProviderRecordgetProviderByClass(android.content.ComponentName name)

        return getProviderByClass(name, -1);
ContentProviderRecordgetProviderByClass(android.content.ComponentName name, int userId)

        if (DBG) {
            Slog.i(TAG, "getProviderByClass: " + name + ", callingUid = " + Binder.getCallingUid());
        }
        // Try to find it in the global list
        ContentProviderRecord record = mSingletonByClass.get(name);
        if (record != null) {
            return record;
        }

        // Check the current user's list
        return getProvidersByClass(userId).get(name);
ContentProviderRecordgetProviderByName(java.lang.String name)

        return getProviderByName(name, -1);
ContentProviderRecordgetProviderByName(java.lang.String name, int userId)

        if (DBG) {
            Slog.i(TAG, "getProviderByName: " + name + " , callingUid = " + Binder.getCallingUid());
        }
        // Try to find it in the global list
        ContentProviderRecord record = mSingletonByName.get(name);
        if (record != null) {
            return record;
        }

        // Check the current user's list
        return getProvidersByName(userId).get(name);
java.util.HashMapgetProvidersByClass(int userId)

        if (userId < 0) throw new IllegalArgumentException("Bad user " + userId);
        final HashMap<ComponentName, ContentProviderRecord> map
                = mProvidersByClassPerUser.get(userId);
        if (map == null) {
            HashMap<ComponentName, ContentProviderRecord> newMap
                    = new HashMap<ComponentName, ContentProviderRecord>();
            mProvidersByClassPerUser.put(userId, newMap);
            return newMap;
        } else {
            return map;
        }
private java.util.HashMapgetProvidersByName(int userId)

        if (userId < 0) throw new IllegalArgumentException("Bad user " + userId);
        final HashMap<String, ContentProviderRecord> map = mProvidersByNamePerUser.get(userId);
        if (map == null) {
            HashMap<String, ContentProviderRecord> newMap = new HashMap<String, ContentProviderRecord>();
            mProvidersByNamePerUser.put(userId, newMap);
            return newMap;
        } else {
            return map;
        }
voidputProviderByClass(android.content.ComponentName name, ContentProviderRecord record)

        if (DBG) {
            Slog.i(TAG, "putProviderByClass: " + name + " , callingUid = " + Binder.getCallingUid()
                + ", record uid = " + record.appInfo.uid);
        }
        if (record.singleton) {
            mSingletonByClass.put(name, record);
        } else {
            final int userId = UserHandle.getUserId(record.appInfo.uid);
            getProvidersByClass(userId).put(name, record);
        }
voidputProviderByName(java.lang.String name, ContentProviderRecord record)

        if (DBG) {
            Slog.i(TAG, "putProviderByName: " + name + " , callingUid = " + Binder.getCallingUid()
                + ", record uid = " + record.appInfo.uid);
        }
        if (record.singleton) {
            mSingletonByName.put(name, record);
        } else {
            final int userId = UserHandle.getUserId(record.appInfo.uid);
            getProvidersByName(userId).put(name, record);
        }
voidremoveProviderByClass(android.content.ComponentName name, int userId)

        if (mSingletonByClass.containsKey(name)) {
            if (DBG)
                Slog.i(TAG, "Removing from globalByClass name=" + name);
            mSingletonByClass.remove(name);
        } else {
            if (userId < 0) throw new IllegalArgumentException("Bad user " + userId);
            if (DBG)
                Slog.i(TAG,
                        "Removing from providersByClass name=" + name + " user=" + userId);
            HashMap<ComponentName, ContentProviderRecord> map = getProvidersByClass(userId);
            // map returned by getProvidersByClass wouldn't be null
            map.remove(name);
            if (map.size() == 0) {
                mProvidersByClassPerUser.remove(userId);
            }
        }
voidremoveProviderByName(java.lang.String name, int userId)

        if (mSingletonByName.containsKey(name)) {
            if (DBG)
                Slog.i(TAG, "Removing from globalByName name=" + name);
            mSingletonByName.remove(name);
        } else {
            if (userId < 0) throw new IllegalArgumentException("Bad user " + userId);
            if (DBG)
                Slog.i(TAG,
                        "Removing from providersByName name=" + name + " user=" + userId);
            HashMap<String, ContentProviderRecord> map = getProvidersByName(userId);
            // map returned by getProvidersByName wouldn't be null
            map.remove(name);
            if (map.size() == 0) {
                mProvidersByNamePerUser.remove(userId);
            }
        }