Add ListPeer command

[jFCPlib.git] / src / main / java / net / pterodactylus / fcp / quelaton / FcpReplySequence.java

diff --git a/src/main/java/net/pterodactylus/fcp/quelaton/FcpReplySequence.java b/src/main/java/net/pterodactylus/fcp/quelaton/FcpReplySequence.java
index 106bd8a..9b44b9a 100644 (file)
--- a/src/main/java/net/pterodactylus/fcp/quelaton/FcpReplySequence.java
+++ b/src/main/java/net/pterodactylus/fcp/quelaton/FcpReplySequence.java
@@ -1,12 +1,17 @@
 package net.pterodactylus.fcp.quelaton;
 
 import java.io.IOException;
+import java.util.Objects;
 import java.util.Queue;
 import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Consumer;
 
 import net.pterodactylus.fcp.AllData;
+import net.pterodactylus.fcp.BaseMessage;
 import net.pterodactylus.fcp.CloseConnectionDuplicateClientName;
 import net.pterodactylus.fcp.ConfigData;
 import net.pterodactylus.fcp.DataFound;
@@ -62,30 +67,42 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
        private final ListeningExecutorService executorService;
        private final FcpConnection fcpConnection;
        private final Queue<FcpMessage> messages = new ConcurrentLinkedQueue<>();
+       private final AtomicReference<String> identifier = new AtomicReference<>();
+       private final AtomicBoolean connectionClosed = new AtomicBoolean();
+       private final AtomicReference<Throwable> connectionFailureReason = new AtomicReference<>();
 
        public FcpReplySequence(ExecutorService executorService, FcpConnection fcpConnection) {
                this.executorService = MoreExecutors.listeningDecorator(executorService);
                this.fcpConnection = fcpConnection;
        }
 
+       protected void setIdentifier(String identifier) {
+               this.identifier.set(identifier);
+       }
+
        protected abstract boolean isFinished();
 
        public ListenableFuture<R> send(FcpMessage fcpMessage) throws IOException {
+               setIdentifier(fcpMessage.getField("Identifier"));
                fcpConnection.addFcpListener(this);
                messages.add(fcpMessage);
                return executorService.submit(() -> {
                        synchronized (syncObject) {
-                               while (!isFinished() || !messages.isEmpty()) {
+                               while (!connectionClosed.get() && (!isFinished() || !messages.isEmpty())) {
                                        while (messages.peek() != null) {
                                                FcpMessage message = messages.poll();
                                                fcpConnection.sendMessage(message);
                                        }
-                                       if (isFinished()) {
+                                       if (isFinished() || connectionClosed.get()) {
                                                continue;
                                        }
                                        syncObject.wait();
                                }
                        }
+                       Throwable throwable = connectionFailureReason.get();
+                       if (throwable != null) {
+                               throw new ExecutionException(throwable);
+                       }
                        return getResult();
                });
        }
@@ -110,7 +127,18 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
                fcpConnection.removeFcpListener(this);
        }
 
-       private <M> void consume(Consumer<M> consumer,  M message) {
+       private <M extends BaseMessage> void consume(Consumer<M> consumer, M message) {
+               consume(consumer, message, "Identifier");
+       }
+
+       private <M extends BaseMessage> void consume(Consumer<M> consumer, M message,
+                       String identifier) {
+               if (Objects.equals(message.getField(identifier), this.identifier.get())) {
+                       consumeAlways(consumer, message);
+               }
+       }
+
+       private <M extends BaseMessage> void consumeAlways(Consumer<M> consumer, M message) {
                consumer.accept(message);
                notifySyncObject();
        }
@@ -121,7 +149,8 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
        }
 
        private void consumeClose(Throwable throwable) {
-               consumeConnectionClosed(throwable);
+               connectionFailureReason.set(throwable);
+               connectionClosed.set(true);
                notifySyncObject();
        }
 
@@ -135,11 +164,11 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
        @Override
        public final void receivedCloseConnectionDuplicateClientName(FcpConnection fcpConnection,
                        CloseConnectionDuplicateClientName closeConnectionDuplicateClientName) {
-               consume(this::consumeCloseConnectionDuplicateClientName, closeConnectionDuplicateClientName);
+               connectionFailureReason.set(new IOException("duplicate client name"));
+               connectionClosed.set(true);
+               notifySyncObject();
        }
 
-       protected void consumeCloseConnectionDuplicateClientName(CloseConnectionDuplicateClientName closeConnectionDuplicateClientName) { }
-
        @Override
        public final void receivedSSKKeypair(FcpConnection fcpConnection, SSKKeypair sskKeypair) {
                consume(this::consumeSSKKeypair, sskKeypair);
@@ -191,14 +220,14 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
 
        @Override
        public final void receivedTestDDAReply(FcpConnection fcpConnection, TestDDAReply testDDAReply) {
-               consume(this::consumeTestDDAReply, testDDAReply);
+               consume(this::consumeTestDDAReply, testDDAReply, "Directory");
        }
 
        protected void consumeTestDDAReply(TestDDAReply testDDAReply) { }
 
        @Override
        public final void receivedTestDDAComplete(FcpConnection fcpConnection, TestDDAComplete testDDAComplete) {
-               consume(this::consumeTestDDAComplete, testDDAComplete);
+               consume(this::consumeTestDDAComplete, testDDAComplete, "Directory");
        }
 
        protected void consumeTestDDAComplete(TestDDAComplete testDDAComplete) { }
@@ -401,6 +430,4 @@ public abstract class FcpReplySequence<R> implements AutoCloseable, FcpListener
                consumeClose(throwable);
        }
 
-       protected void consumeConnectionClosed(Throwable throwable) { }
-
 }