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/*
* Copyright (c) 2018, Daniel Gultsch All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package de.pixart.messenger.services;
import android.database.Cursor;
import android.os.SystemClock;
import android.util.Log;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import de.pixart.messenger.Config;
import de.pixart.messenger.entities.Account;
import de.pixart.messenger.entities.Conversation;
import de.pixart.messenger.entities.Conversational;
import de.pixart.messenger.entities.IndividualMessage;
import de.pixart.messenger.entities.Message;
import de.pixart.messenger.entities.StubConversation;
import de.pixart.messenger.ui.interfaces.OnSearchResultsAvailable;
import de.pixart.messenger.utils.Cancellable;
import de.pixart.messenger.utils.MessageUtils;
import de.pixart.messenger.utils.ReplacingSerialSingleThreadExecutor;
import rocks.xmpp.addr.Jid;
public class MessageSearchTask implements Runnable, Cancellable {
private static final ReplacingSerialSingleThreadExecutor EXECUTOR = new ReplacingSerialSingleThreadExecutor(MessageSearchTask.class.getName());
private final XmppConnectionService xmppConnectionService;
private final List<String> term;
private final OnSearchResultsAvailable onSearchResultsAvailable;
private boolean isCancelled = false;
private MessageSearchTask(XmppConnectionService xmppConnectionService, List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
this.xmppConnectionService = xmppConnectionService;
this.term = term;
this.onSearchResultsAvailable = onSearchResultsAvailable;
}
public static void search(XmppConnectionService xmppConnectionService, List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
new MessageSearchTask(xmppConnectionService, term, onSearchResultsAvailable).executeInBackground();
}
public static void cancelRunningTasks() {
EXECUTOR.cancelRunningTasks();
}
@Override
public void cancel() {
this.isCancelled = true;
}
@Override
public void run() {
long startTimestamp = SystemClock.elapsedRealtime();
Cursor cursor = null;
try {
final HashMap<String, Conversational> conversationCache = new HashMap<>();
final List<Message> result = new ArrayList<>();
cursor = xmppConnectionService.databaseBackend.getMessageSearchCursor(term);
long dbTimer = SystemClock.elapsedRealtime();
if (isCancelled) {
Log.d(Config.LOGTAG, "canceled search task");
return;
}
if (cursor != null && cursor.getCount() > 0) {
cursor.moveToLast();
final int indexBody = cursor.getColumnIndex(Message.BODY);
final int indexOob = cursor.getColumnIndex(Message.OOB);
final int indexConversation = cursor.getColumnIndex(Message.CONVERSATION);
final int indexAccount = cursor.getColumnIndex(Conversation.ACCOUNT);
final int indexContact = cursor.getColumnIndex(Conversation.CONTACTJID);
final int indexMode = cursor.getColumnIndex(Conversation.MODE);
do {
if (isCancelled) {
Log.d(Config.LOGTAG, "canceled search task");
return;
}
final String body = cursor.getString(indexBody);
final boolean oob = cursor.getInt(indexOob) > 0;
if (MessageUtils.treatAsDownloadable(body, oob)) {
continue;
}
final String conversationUuid = cursor.getString(indexConversation);
Conversational conversation = conversationCache.get(conversationUuid);
if (conversation == null) {
String accountUuid = cursor.getString(indexAccount);
String contactJid = cursor.getString(indexContact);
int mode = cursor.getInt(indexMode);
conversation = findOrGenerateStub(conversationUuid, accountUuid, contactJid, mode);
conversationCache.put(conversationUuid, conversation);
}
Message message = IndividualMessage.fromCursor(cursor, conversation);
result.add(message);
} while (cursor.moveToPrevious());
}
long stopTimestamp = SystemClock.elapsedRealtime();
Log.d(Config.LOGTAG, "found " + result.size() + " messages in " + (stopTimestamp - startTimestamp) + "ms" + " (db was " + (dbTimer - startTimestamp) + "ms)");
onSearchResultsAvailable.onSearchResultsAvailable(term, result);
} catch (Exception e) {
Log.d(Config.LOGTAG, "exception while searching ", e);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
private Conversational findOrGenerateStub(String conversationUuid, String accountUuid, String contactJid, int mode) throws Exception {
Conversation conversation = xmppConnectionService.findConversationByUuid(conversationUuid);
if (conversation != null) {
return conversation;
}
Account account = xmppConnectionService.findAccountByUuid(accountUuid);
Jid jid = Jid.of(contactJid);
if (account != null && jid != null) {
return new StubConversation(account, conversationUuid, jid.asBareJid(), mode);
}
throw new Exception("Unable to generate stub for " + contactJid);
}
private void executeInBackground() {
EXECUTOR.execute(this);
}
}
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