| /* |
| * Copyright (C) 2008 Esmertec AG. |
| * Copyright (C) 2008 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.google.android.mms.util; |
| |
| import android.content.ContentUris; |
| import android.content.UriMatcher; |
| import android.net.Uri; |
| import android.provider.Telephony.Mms; |
| import android.util.Log; |
| |
| import dalvik.annotation.compat.UnsupportedAppUsage; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| |
| public final class PduCache extends AbstractCache<Uri, PduCacheEntry> { |
| private static final String TAG = "PduCache"; |
| private static final boolean DEBUG = false; |
| private static final boolean LOCAL_LOGV = false; |
| |
| private static final int MMS_ALL = 0; |
| private static final int MMS_ALL_ID = 1; |
| private static final int MMS_INBOX = 2; |
| private static final int MMS_INBOX_ID = 3; |
| private static final int MMS_SENT = 4; |
| private static final int MMS_SENT_ID = 5; |
| private static final int MMS_DRAFTS = 6; |
| private static final int MMS_DRAFTS_ID = 7; |
| private static final int MMS_OUTBOX = 8; |
| private static final int MMS_OUTBOX_ID = 9; |
| private static final int MMS_CONVERSATION = 10; |
| private static final int MMS_CONVERSATION_ID = 11; |
| |
| private static final UriMatcher URI_MATCHER; |
| private static final HashMap<Integer, Integer> MATCH_TO_MSGBOX_ID_MAP; |
| |
| private static PduCache sInstance; |
| |
| static { |
| URI_MATCHER = new UriMatcher(UriMatcher.NO_MATCH); |
| URI_MATCHER.addURI("mms", null, MMS_ALL); |
| URI_MATCHER.addURI("mms", "#", MMS_ALL_ID); |
| URI_MATCHER.addURI("mms", "inbox", MMS_INBOX); |
| URI_MATCHER.addURI("mms", "inbox/#", MMS_INBOX_ID); |
| URI_MATCHER.addURI("mms", "sent", MMS_SENT); |
| URI_MATCHER.addURI("mms", "sent/#", MMS_SENT_ID); |
| URI_MATCHER.addURI("mms", "drafts", MMS_DRAFTS); |
| URI_MATCHER.addURI("mms", "drafts/#", MMS_DRAFTS_ID); |
| URI_MATCHER.addURI("mms", "outbox", MMS_OUTBOX); |
| URI_MATCHER.addURI("mms", "outbox/#", MMS_OUTBOX_ID); |
| URI_MATCHER.addURI("mms-sms", "conversations", MMS_CONVERSATION); |
| URI_MATCHER.addURI("mms-sms", "conversations/#", MMS_CONVERSATION_ID); |
| |
| MATCH_TO_MSGBOX_ID_MAP = new HashMap<Integer, Integer>(); |
| MATCH_TO_MSGBOX_ID_MAP.put(MMS_INBOX, Mms.MESSAGE_BOX_INBOX); |
| MATCH_TO_MSGBOX_ID_MAP.put(MMS_SENT, Mms.MESSAGE_BOX_SENT); |
| MATCH_TO_MSGBOX_ID_MAP.put(MMS_DRAFTS, Mms.MESSAGE_BOX_DRAFTS); |
| MATCH_TO_MSGBOX_ID_MAP.put(MMS_OUTBOX, Mms.MESSAGE_BOX_OUTBOX); |
| } |
| |
| private final HashMap<Integer, HashSet<Uri>> mMessageBoxes; |
| private final HashMap<Long, HashSet<Uri>> mThreads; |
| private final HashSet<Uri> mUpdating; |
| |
| @UnsupportedAppUsage |
| private PduCache() { |
| mMessageBoxes = new HashMap<Integer, HashSet<Uri>>(); |
| mThreads = new HashMap<Long, HashSet<Uri>>(); |
| mUpdating = new HashSet<Uri>(); |
| } |
| |
| @UnsupportedAppUsage |
| synchronized public static final PduCache getInstance() { |
| if (sInstance == null) { |
| if (LOCAL_LOGV) { |
| Log.v(TAG, "Constructing new PduCache instance."); |
| } |
| sInstance = new PduCache(); |
| } |
| return sInstance; |
| } |
| |
| @Override |
| synchronized public boolean put(Uri uri, PduCacheEntry entry) { |
| int msgBoxId = entry.getMessageBox(); |
| HashSet<Uri> msgBox = mMessageBoxes.get(msgBoxId); |
| if (msgBox == null) { |
| msgBox = new HashSet<Uri>(); |
| mMessageBoxes.put(msgBoxId, msgBox); |
| } |
| |
| long threadId = entry.getThreadId(); |
| HashSet<Uri> thread = mThreads.get(threadId); |
| if (thread == null) { |
| thread = new HashSet<Uri>(); |
| mThreads.put(threadId, thread); |
| } |
| |
| Uri finalKey = normalizeKey(uri); |
| boolean result = super.put(finalKey, entry); |
| if (result) { |
| msgBox.add(finalKey); |
| thread.add(finalKey); |
| } |
| setUpdating(uri, false); |
| return result; |
| } |
| |
| synchronized public void setUpdating(Uri uri, boolean updating) { |
| if (updating) { |
| mUpdating.add(uri); |
| } else { |
| mUpdating.remove(uri); |
| } |
| } |
| |
| @UnsupportedAppUsage |
| synchronized public boolean isUpdating(Uri uri) { |
| return mUpdating.contains(uri); |
| } |
| |
| @Override |
| @UnsupportedAppUsage |
| synchronized public PduCacheEntry purge(Uri uri) { |
| int match = URI_MATCHER.match(uri); |
| switch (match) { |
| case MMS_ALL_ID: |
| return purgeSingleEntry(uri); |
| case MMS_INBOX_ID: |
| case MMS_SENT_ID: |
| case MMS_DRAFTS_ID: |
| case MMS_OUTBOX_ID: |
| String msgId = uri.getLastPathSegment(); |
| return purgeSingleEntry(Uri.withAppendedPath(Mms.CONTENT_URI, msgId)); |
| // Implicit batch of purge, return null. |
| case MMS_ALL: |
| case MMS_CONVERSATION: |
| purgeAll(); |
| return null; |
| case MMS_INBOX: |
| case MMS_SENT: |
| case MMS_DRAFTS: |
| case MMS_OUTBOX: |
| purgeByMessageBox(MATCH_TO_MSGBOX_ID_MAP.get(match)); |
| return null; |
| case MMS_CONVERSATION_ID: |
| purgeByThreadId(ContentUris.parseId(uri)); |
| return null; |
| default: |
| return null; |
| } |
| } |
| |
| private PduCacheEntry purgeSingleEntry(Uri key) { |
| mUpdating.remove(key); |
| PduCacheEntry entry = super.purge(key); |
| if (entry != null) { |
| removeFromThreads(key, entry); |
| removeFromMessageBoxes(key, entry); |
| return entry; |
| } |
| return null; |
| } |
| |
| @UnsupportedAppUsage |
| @Override |
| synchronized public void purgeAll() { |
| super.purgeAll(); |
| |
| mMessageBoxes.clear(); |
| mThreads.clear(); |
| mUpdating.clear(); |
| } |
| |
| /** |
| * @param uri The Uri to be normalized. |
| * @return Uri The normalized key of cached entry. |
| */ |
| private Uri normalizeKey(Uri uri) { |
| int match = URI_MATCHER.match(uri); |
| Uri normalizedKey = null; |
| |
| switch (match) { |
| case MMS_ALL_ID: |
| normalizedKey = uri; |
| break; |
| case MMS_INBOX_ID: |
| case MMS_SENT_ID: |
| case MMS_DRAFTS_ID: |
| case MMS_OUTBOX_ID: |
| String msgId = uri.getLastPathSegment(); |
| normalizedKey = Uri.withAppendedPath(Mms.CONTENT_URI, msgId); |
| break; |
| default: |
| return null; |
| } |
| |
| if (LOCAL_LOGV) { |
| Log.v(TAG, uri + " -> " + normalizedKey); |
| } |
| return normalizedKey; |
| } |
| |
| private void purgeByMessageBox(Integer msgBoxId) { |
| if (LOCAL_LOGV) { |
| Log.v(TAG, "Purge cache in message box: " + msgBoxId); |
| } |
| |
| if (msgBoxId != null) { |
| HashSet<Uri> msgBox = mMessageBoxes.remove(msgBoxId); |
| if (msgBox != null) { |
| for (Uri key : msgBox) { |
| mUpdating.remove(key); |
| PduCacheEntry entry = super.purge(key); |
| if (entry != null) { |
| removeFromThreads(key, entry); |
| } |
| } |
| } |
| } |
| } |
| |
| private void removeFromThreads(Uri key, PduCacheEntry entry) { |
| HashSet<Uri> thread = mThreads.get(entry.getThreadId()); |
| if (thread != null) { |
| thread.remove(key); |
| } |
| } |
| |
| private void purgeByThreadId(long threadId) { |
| if (LOCAL_LOGV) { |
| Log.v(TAG, "Purge cache in thread: " + threadId); |
| } |
| |
| HashSet<Uri> thread = mThreads.remove(threadId); |
| if (thread != null) { |
| for (Uri key : thread) { |
| mUpdating.remove(key); |
| PduCacheEntry entry = super.purge(key); |
| if (entry != null) { |
| removeFromMessageBoxes(key, entry); |
| } |
| } |
| } |
| } |
| |
| private void removeFromMessageBoxes(Uri key, PduCacheEntry entry) { |
| HashSet<Uri> msgBox = mThreads.get(Long.valueOf(entry.getMessageBox())); |
| if (msgBox != null) { |
| msgBox.remove(key); |
| } |
| } |
| } |