zdm/envoy
zdm/envoy
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Updated Javadoc

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This commit is contained in:
delvh 2019-12-30 15:15:25 +01:00
parent 070118f612
commit e265ef0b8f
6 changed files with 77 additions and 43 deletions
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10
src/main/java/envoy/server/LoginCredentialProcessor.java
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@ -4,24 +4,26 @@ import envoy.data.LoginCredentials;
import envoy.data.User;
/**
* This {@link ObjectProcessor} handles {@link LoginCredentials}.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>LoginCredentialProcessor.java</strong><br>
* Created: <strong>30.12.2019</strong><br>
*
* @author Kai S. K. Engelbart
* @since
* @since Envoy Server Standalone v0.1-alpha
*/
public class LoginCredentialProcessor implements ObjectProcessor<LoginCredentials, User> {
// TODO: Acquire user IDs from database
private static long currentUserId = 1;
@Override
public Class<LoginCredentials> getInputClass() { return LoginCredentials.class; }
@Override
public User process(LoginCredentials input) {
System.out.println("Received login credentials " + input);
return new User(currentUserId++, input.getName());
}
@Override
public Class<LoginCredentials> getInputClass() { return LoginCredentials.class; }
}

8
src/main/java/envoy/server/MessageProcessor.java
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@ -3,18 +3,20 @@ package envoy.server;
import envoy.data.Message;
/**
* This {@link ObjectProcessor} handles incoming {@link Message}s.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>MessageProcessor.java</strong><br>
* Created: <strong>30.12.2019</strong><br>
*
* @author Kai S. K. Engelbart
* @since
* @since Envoy Server Standalone v0.1-alpha
*/
public class MessageProcessor implements ObjectProcessor<Message, Void> {
@Override
public Void process(Message input) { return null; }
public Class<Message> getInputClass() { return Message.class; }
@Override
public Class<Message> getInputClass() { return Message.class; }
public Void process(Message input) { return null; }
}

44
src/main/java/envoy/server/ObjectMessageProcessor.java
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@ -12,6 +12,8 @@ import com.jenkov.nioserver.Message;
import com.jenkov.nioserver.WriteProxy;
/**
* Handles incoming objects.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>ObjectMessageProcessor.java</strong><br>
* Created: <strong>28.12.2019</strong><br>
@ -23,6 +25,12 @@ public class ObjectMessageProcessor implements IMessageProcessor {
private final Set<ObjectProcessor<?, ?>> processors;
/**
* The constructor to set the {@link ObjectProcessor}s.
*
* @param processors the {@link ObjectProcessor} to set
* @since Envoy Server Standalone v0.1-alpha
*/
public ObjectMessageProcessor(Set<ObjectProcessor<?, ?>> processors) { this.processors = processors; }
@SuppressWarnings("unchecked")
@ -33,27 +41,25 @@ public class ObjectMessageProcessor implements IMessageProcessor {
System.out.println("Read object: " + obj.toString());
// Process object
processors.stream()
.filter(p -> p.getInputClass().isInstance(obj))
.forEach((@SuppressWarnings("rawtypes") ObjectProcessor p) -> {
Object responseObj = p.process(p.getInputClass().cast(obj));
if (responseObj != null) {
// Create message targeted at the client
Message response = writeProxy.getMessage();
response.socketId = message.socketId;
processors.stream().filter(p -> p.getInputClass().isInstance(obj)).forEach((@SuppressWarnings("rawtypes") ObjectProcessor p) -> {
Object responseObj = p.process(p.getInputClass().cast(obj));
if (responseObj != null) {
// Create message targeted at the client
Message response = writeProxy.getMessage();
response.socketId = message.socketId;
// Serialize object to byte array
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (ObjectOutputStream oout = new ObjectOutputStream(baos)) {
oout.writeObject(responseObj);
} catch (IOException e) {
e.printStackTrace();
}
byte[] objBytes = baos.toByteArray();
response.writeToMessage(objBytes);
writeProxy.enqueue(response);
// Serialize object to byte array
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (ObjectOutputStream oout = new ObjectOutputStream(baos)) {
oout.writeObject(responseObj);
} catch (IOException e) {
e.printStackTrace();
}
});
byte[] objBytes = baos.toByteArray();
response.writeToMessage(objBytes);
writeProxy.enqueue(response);
}
});
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}

18
src/main/java/envoy/server/ObjectMessageReader.java
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@ -11,6 +11,8 @@ import com.jenkov.nioserver.MessageBuffer;
import com.jenkov.nioserver.Socket;
/**
* This {@link IMessageReader} decodes serialized Java objects.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>ObjectMessageReader.java</strong><br>
* Created: <strong>28.12.2019</strong><br>
@ -24,6 +26,14 @@ public class ObjectMessageReader implements IMessageReader {
private Message nextMessage;
private MessageBuffer messageBuffer;
private int fromByteArray(byte[] bytes, int offset) {
return ((bytes[offset] & 0xFF) << 24) | ((bytes[offset + 1] & 0xFF) << 16) | ((bytes[offset + 2] & 0xFF) << 8)
| ((bytes[offset + 3] & 0xFF) << 0);
}
@Override
public List<Message> getMessages() { return completeMessages; }
@Override
public void init(MessageBuffer messageBuffer) {
this.messageBuffer = messageBuffer;
@ -55,12 +65,4 @@ public class ObjectMessageReader implements IMessageReader {
buffer.clear();
}
private int fromByteArray(byte[] bytes, int offset) {
return ((bytes[offset] & 0xFF) << 24) | ((bytes[offset + 1] & 0xFF) << 16) | ((bytes[offset + 2] & 0xFF) << 8)
| ((bytes[offset + 3] & 0xFF) << 0);
}
@Override
public List<Message> getMessages() { return completeMessages; }
}

19
src/main/java/envoy/server/ObjectProcessor.java
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@ -1,17 +1,30 @@
package envoy.server;
/**
* This interface defines methods for processing objects of a specific
* type incoming from a client.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>ObjectProcessor.java</strong><br>
* Created: <strong>30.12.2019</strong><br>
*
* @author Kai S. K. Engelbart
* @param <T> type of the request object
* @param <U> type of the response object
* @since Envoy Server Standalone v0.1-alpha
*/
public interface ObjectProcessor<T, U> {
U process(T input);
/**
* @return the Class of the request object
* @since Envoy Server Standalone v0.1-alpha
*/
Class<T> getInputClass();
/**
* @param input the request object
* @return the response object
* @since Envoy Server Standalone v0.1-alpha
*/
U process(T input);
}

9
src/main/java/envoy/server/Startup.java
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@ -7,6 +7,8 @@ import java.util.Set;
import com.jenkov.nioserver.Server;
/**
* Starts the server.<br>
* <br>
* Project: <strong>envoy-server-standalone</strong><br>
* File: <strong>Startup.java</strong><br>
* Created: <strong>24.12.2019</strong><br>
@ -16,6 +18,13 @@ import com.jenkov.nioserver.Server;
*/
public class Startup {
/**
* Starts the server.
*
* @param args the run configuration. Currently unused.
* @throws IOException if the server crashes
* @since Envoy Server Standalone v0.1-alpha
*/
public static void main(String[] args) throws IOException {
Set<ObjectProcessor<?, ?>> processors = new HashSet<>();
processors.add(new LoginCredentialProcessor());