package voldemort;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.io.JsonDecoder;
import voldemort.client.ClientConfig;
import voldemort.client.DefaultStoreClient;
import voldemort.client.SocketStoreClientFactory;
import voldemort.client.StoreClientFactory;
import voldemort.client.protocol.RequestFormatType;
import voldemort.client.protocol.admin.AdminClient;
import voldemort.store.StoreDefinition;
import voldemort.utils.Pair;
import voldemort.utils.Utils;
/**
* NOTE: This class is unsupported. All shell access is via the
* {@link VoldemortClientShell}
*
* Utility to check avro values through command line very handy for debugging
*
*/
@Deprecated
public class VoldemortAvroClientShell {
private static final String PROMPT = "> ";
public static void main(String args[]) throws IOException {
if(args.length < 2 || args.length > 3) {
System.err.println("Usage: java VoldemortAvroClient store_name bootstrap_url [command_file]");
System.exit(-1);
}
String storeName = args[0];
String bootstrapUrl = args[1];
String commandsFileName = "";
BufferedReader fileReader = null;
BufferedReader inputReader = null;
try {
if(args.length == 3) {
commandsFileName = args[2];
fileReader = new BufferedReader(new FileReader(commandsFileName));
}
inputReader = new BufferedReader(new InputStreamReader(System.in));
} catch(IOException e) {
Utils.croak("Failure to open input stream: " + e.getMessage());
}
ClientConfig clientConfig = new ClientConfig().setBootstrapUrls(bootstrapUrl)
.setEnableLazy(false)
.setRequestFormatType(RequestFormatType.VOLDEMORT_V3);
StoreClientFactory factory = null;
DefaultStoreClient<Object, Object> client = null;
try {
try {
factory = new SocketStoreClientFactory(clientConfig);
client = (DefaultStoreClient<Object, Object>) factory.getStoreClient(storeName);
} catch(Exception e) {
Utils.croak("Could not connect to server: " + e.getMessage());
}
System.out.println("Established connection to " + storeName + " via " + bootstrapUrl);
System.out.print(PROMPT);
Pair<Schema, Schema> keyValueSchemaPair = getLatestKeyValueSchema(bootstrapUrl,
storeName);
Schema latestKeySchema = keyValueSchemaPair.getFirst();
if(latestKeySchema == null) {
Utils.croak("Could not parse latest key schema for store name " + storeName);
}
Schema latestValueSchema = keyValueSchemaPair.getSecond();
if(latestValueSchema == null) {
Utils.croak("Could not parse latest value schema for store name " + storeName);
}
if(fileReader != null) {
processCommands(client, fileReader, latestKeySchema, latestValueSchema, true);
} else {
processCommands(client, inputReader, latestKeySchema, latestValueSchema, false);
}
} finally {
if(factory != null)
factory.close();
if(fileReader != null)
fileReader.close();
}
}
private static Pair<Schema, Schema> getLatestKeyValueSchema(String url, String storeName) {
AdminClient adminClient = null;
try {
adminClient = new AdminClient(url);
List<StoreDefinition> storeDefs = adminClient.metadataMgmtOps.getRemoteStoreDefList()
.getValue();
for(StoreDefinition storeDef: storeDefs) {
if(storeDef.getName().equals(storeName)) {
Schema keySchema = Schema.parse(storeDef.getKeySerializer()
.getCurrentSchemaInfo());
Schema valueSchema = Schema.parse(storeDef.getValueSerializer()
.getCurrentSchemaInfo());
return new Pair<Schema, Schema>(keySchema, valueSchema);
}
}
} catch(Exception e) {
System.err.println("Error while getting latest key schema " + e.getMessage());
} finally {
if(adminClient != null) {
adminClient.close();
}
}
return null;
}
private static void processCommands(DefaultStoreClient<Object, Object> client,
BufferedReader reader,
Schema keySchema,
Schema valueSchema,
boolean printCommands) throws IOException {
for(String line = reader.readLine(); line != null; line = reader.readLine()) {
System.out.print(PROMPT);
if(line.trim().equals(""))
continue;
if(printCommands)
System.out.println(line);
try {
if(line.toLowerCase().startsWith("get")) {
System.out.println("Enter key:");
line = reader.readLine();
JsonDecoder decoder = new JsonDecoder(keySchema, line);
GenericDatumReader<Object> datumReader = null;
Object key = null;
try {
datumReader = new GenericDatumReader<Object>(keySchema);
key = datumReader.read(null, decoder);
} catch(IOException e) {}
if(key == null) {
System.err.println("Error parsing key ");
continue;
}
System.out.println("Value - " + client.get(key));
} else if(line.toLowerCase().startsWith("put")) {
String keyString = null;
String valueString = null;
System.out.println("Enter key:");
line = reader.readLine();
keyString = line;
System.out.println("Enter value:");
line = reader.readLine();
valueString = line;
JsonDecoder keyDecoder = new JsonDecoder(keySchema, keyString);
JsonDecoder valueDecoder = new JsonDecoder(valueSchema, valueString);
GenericDatumReader<Object> datumReader = null;
Object key = null;
Object value = null;
try {
datumReader = new GenericDatumReader<Object>(keySchema);
key = datumReader.read(null, keyDecoder);
} catch(IOException e) {}
if(key == null) {
System.err.println("Error parsing key ");
continue;
}
try {
datumReader = new GenericDatumReader<Object>(valueSchema);
value = datumReader.read(null, valueDecoder);
} catch(IOException e) {}
if(value == null) {
System.err.println("Error parsing value ");
continue;
}
System.out.println("Put - " + client.put(key, value));
} else if(line.startsWith("quit") || line.startsWith("exit")) {
System.out.println("k k thx bye.");
System.exit(0);
} else {
System.err.println("Only supported 'get' & 'put' ");
}
} catch(Exception e) {
System.err.println("Unexpected error:");
e.printStackTrace(System.err);
}
}
}
}