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Add some simple indexes to the DB.

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akwizgran
2017-09-21 11:05:16 +01:00
committed by akwizgran
parent e6b1597fa7
commit 8211ce7ae3
1 changed files with 43 additions and 1 deletions
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44
bramble-core/src/main/java/org/briarproject/bramble/db/JdbcDatabase.java
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@@ -232,6 +232,30 @@ abstract class JdbcDatabase implements Database<Connection> {
+ " REFERENCES transports (transportId)" + " REFERENCES transports (transportId)"
+ " ON DELETE CASCADE)"; + " ON DELETE CASCADE)";
private static final String INDEX_CONTACTS_BY_AUTHOR_ID =
"CREATE INDEX IF NOT EXISTS contactsByAuthorId"
+ " ON contacts (authorId)";
private static final String INDEX_MESSAGES_BY_GROUP_ID =
"CREATE INDEX IF NOT EXISTS messagesByGroupId"
+ " ON messages (groupId)";
private static final String INDEX_OFFERS_BY_CONTACT_ID =
"CREATE INDEX IF NOT EXISTS offersByContactId"
+ " ON offers (contactId)";
private static final String INDEX_GROUPS_BY_CLIENT_ID =
"CREATE INDEX IF NOT EXISTS groupsByClientId"
+ " ON groups (clientId)";
private static final String INDEX_MESSAGE_METADATA_BY_MESSAGE_ID =
"CREATE INDEX IF NOT EXISTS messageMetadataByMessageId"
+ " ON messageMetadata (messageId)";
private static final String INDEX_GROUP_METADATA_BY_GROUP_ID =
"CREATE INDEX IF NOT EXISTS groupMetadataByGroupId"
+ " ON groupMetadata (groupId)";
private static final Logger LOG = private static final Logger LOG =
Logger.getLogger(JdbcDatabase.class.getName()); Logger.getLogger(JdbcDatabase.class.getName());
@@ -267,7 +291,7 @@ abstract class JdbcDatabase implements Database<Connection> {
} catch (ClassNotFoundException e) { } catch (ClassNotFoundException e) {
throw new DbException(e); throw new DbException(e);
} }
// Open the database and create the tables if necessary // Open the database and create the tables and indexes if necessary
Connection txn = startTransaction(); Connection txn = startTransaction();
try { try {
if (reopen) { if (reopen) {
@@ -276,6 +300,7 @@ abstract class JdbcDatabase implements Database<Connection> {
createTables(txn); createTables(txn);
storeSchemaVersion(txn); storeSchemaVersion(txn);
} }
createIndexes(txn);
commitTransaction(txn); commitTransaction(txn);
} catch (DbException e) { } catch (DbException e) {
abortTransaction(txn); abortTransaction(txn);
@@ -340,6 +365,23 @@ abstract class JdbcDatabase implements Database<Connection> {
} }
} }
private void createIndexes(Connection txn) throws DbException {
Statement s = null;
try {
s = txn.createStatement();
s.executeUpdate(INDEX_CONTACTS_BY_AUTHOR_ID);
s.executeUpdate(INDEX_MESSAGES_BY_GROUP_ID);
s.executeUpdate(INDEX_OFFERS_BY_CONTACT_ID);
s.executeUpdate(INDEX_GROUPS_BY_CLIENT_ID);
s.executeUpdate(INDEX_MESSAGE_METADATA_BY_MESSAGE_ID);
s.executeUpdate(INDEX_GROUP_METADATA_BY_GROUP_ID);
s.close();
} catch (SQLException e) {
tryToClose(s);
throw new DbException(e);
}
}
private String insertTypeNames(String s) { private String insertTypeNames(String s) {
s = s.replaceAll("HASH", hashType); s = s.replaceAll("HASH", hashType);
s = s.replaceAll("BINARY", binaryType); s = s.replaceAll("BINARY", binaryType);