/**
* Prepare prefetch store. {@inheritDoc}
*
* @see
* com.continuent.tungsten.replicator.plugin.ReplicatorPlugin#prepare(com.continuent.tungsten.replicator.plugin.PluginContext)
*/
public void prepare(PluginContext context) throws ReplicatorException {
// Perform super-class prepare.
super.prepare(context);
logger.info("Preparing PrefetchStore for slave catalog schema: " + slaveCatalogSchema);
// Load defaults for connection
if (url == null) url = context.getJdbcUrl("tungsten_" + context.getServiceName());
if (user == null) user = context.getJdbcUser();
if (password == null) password = context.getJdbcPassword();
// Connect.
try {
conn = DatabaseFactory.createDatabase(url, user, password);
conn.connect(true);
seqnoStatement =
conn.prepareStatement(
"select seqno, fragno, last_Frag, source_id, epoch_number, eventid, applied_latency from "
+ slaveCatalogSchema
+ "."
+ CommitSeqnoTable.TABLE_NAME);
} catch (SQLException e) {
throw new ReplicatorException(e);
}
// Show that we have started.
startTimeMillis = System.currentTimeMillis();
prefetchState = PrefetchState.active;
}
/**
* Prepares connection to the filtering server and parses definition file. {@inheritDoc}
*
* @see
* com.continuent.tungsten.replicator.plugin.ReplicatorPlugin#prepare(com.continuent.tungsten.replicator.plugin.PluginContext)
*/
public void prepare(PluginContext context) throws ReplicatorException {
messageGenerator = new ClientMessageGenerator(context.getServiceName());
initDefinitionsFile();
initConnection();
doHandshake(context.getServiceName());
}
/**
* Connect to underlying queue. {@inheritDoc}
*
* @see
* com.continuent.tungsten.replicator.plugin.ReplicatorPlugin#prepare(com.continuent.tungsten.replicator.plugin.PluginContext)
*/
public void prepare(PluginContext context) throws ReplicatorException {
try {
queueStore = (InMemoryMultiQueue) context.getStore(storeName);
} catch (ClassCastException e) {
throw new ReplicatorException(
"Invalid storage class; configuration may be in error: "
+ context.getStore(storeName).getClass().getName());
}
if (queueStore == null)
throw new ReplicatorException(
"Unknown storage name; configuration may be in error: " + storeName);
}
/**
* {@inheritDoc}
*
* @see
* com.continuent.tungsten.replicator.plugin.ReplicatorPlugin#configure(com.continuent.tungsten.replicator.plugin.PluginContext)
*/
public void configure(PluginContext context) throws ReplicatorException {
if (tungstenSchema == null) {
tungstenSchema = context.getReplicatorProperties().getString(ReplicatorConf.METADATA_SCHEMA);
}
if (definitionsFile == null) {
throw new ReplicatorException(
"definitionsFile property not set - specify a path to JSON file");
}
}
/**
* {@inheritDoc}
*
* @see
* com.continuent.tungsten.replicator.plugin.ReplicatorPlugin#prepare(com.continuent.tungsten.replicator.plugin.PluginContext)
*/
public synchronized void prepare(PluginContext context)
throws ReplicatorException, InterruptedException {
// Prepare database connection.
if (url != null && url.trim().length() > 0) {
logger.info("Preparing SQL catalog tables");
ReplicatorRuntime runtime = (ReplicatorRuntime) context;
String metadataSchema = context.getReplicatorSchemaName();
catalog = new CatalogManager(runtime);
catalog.connect(url, user, password, metadataSchema, vendor);
catalog.prepareSchema();
} else logger.info("SQL catalog tables are disabled");
// Configure and prepare the log.
diskLog = new DiskLog();
diskLog.setDoChecksum(doChecksum);
diskLog.setEventSerializerClass(eventSerializer);
diskLog.setLogDir(logDir);
diskLog.setLogFileSize(logFileSize);
diskLog.setLogFileRetainMillis(logFileRetainMillis);
diskLog.setLogConnectionTimeoutMillis(logConnectionTimeout * 1000);
diskLog.setBufferSize(bufferSize);
diskLog.setFsyncOnFlush(fsyncOnFlush);
if (fsyncOnFlush) {
// Only used with fsync.
diskLog.setFlushIntervalMillis(flushIntervalMillis);
}
diskLog.setReadOnly(readOnly);
diskLog.prepare();
logger.info("Log preparation is complete");
// Start server for THL connections.
if (context.isRemoteService() == false) {
try {
server = new Server(context, sequencer, this);
server.start();
} catch (IOException e) {
throw new ReplicatorException("Unable to start THL server", e);
}
}
}
