very much unoptimized search functionality

1 files changed, 128 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/services/MessageSearchTask.java b/src/main/java/de/pixart/messenger/services/MessageSearchTask.java
new file mode 100644
index 000000000..4911eff75
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/services/MessageSearchTask.java
@@ -0,0 +1,128 @@
+/*
+ * 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.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 String term;
+    private final OnSearchResultsAvailable onSearchResultsAvailable;
+
+    private boolean isCancelled = false;
+
+    private MessageSearchTask(XmppConnectionService xmppConnectionService, String term, OnSearchResultsAvailable onSearchResultsAvailable) {
+        this.xmppConnectionService = xmppConnectionService;
+        this.term = term;
+        this.onSearchResultsAvailable = onSearchResultsAvailable;
+    }
+
+    public static void search(XmppConnectionService xmppConnectionService, String term, OnSearchResultsAvailable onSearchResultsAvailable) {
+        new MessageSearchTask(xmppConnectionService, term, onSearchResultsAvailable).executeInBackground();
+    }
+
+    @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);
+            while (cursor.moveToNext()) {
+                final String conversationUuid = cursor.getString(cursor.getColumnIndex(Message.CONVERSATION));
+                Conversational conversation;
+                if (conversationCache.containsKey(conversationUuid)) {
+                    conversation = conversationCache.get(conversationUuid);
+                } else {
+                    String accountUuid = cursor.getString(cursor.getColumnIndex(Conversation.ACCOUNT));
+                    String contactJid = cursor.getString(cursor.getColumnIndex(Conversation.CONTACTJID));
+                    int mode = cursor.getInt(cursor.getColumnIndex(Conversation.MODE));
+                    conversation = findOrGenerateStub(conversationUuid, accountUuid, contactJid, mode);
+                    conversationCache.put(conversationUuid, conversation);
+                }
+                Message message = IndividualMessage.fromCursor(cursor, conversation);
+                result.add(message);
+            }
+            long stopTimestamp = SystemClock.elapsedRealtime();
+            Log.d(Config.LOGTAG, "found " + result.size() + " messages in " + (stopTimestamp - 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);
+    }
+}
\ No newline at end of file