/**
* Copyright (C) 2013-2015 all@code-story.net
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package net.codestory.http.livereload;
import static java.util.Collections.singletonList;
import static net.codestory.http.constants.FrameTypes.TEXT;
import java.io.IOException;
import net.codestory.http.misc.Env;
import net.codestory.http.reload.FolderChangeListener;
import net.codestory.http.websockets.Frame;
import net.codestory.http.websockets.WebSocketListener;
import net.codestory.http.websockets.WebSocketSession;
public class LiveReloadListener implements WebSocketListener {
public static final String VERSION_7 = "http://livereload.com/protocols/official-7";
private final Env env;
private final WebSocketSession session;
private final FolderChangeListener listener;
public LiveReloadListener(WebSocketSession session, Env env) {
this.env = env;
this.session = session;
this.listener = () -> {
try {
session.send(TEXT, new OutgoingReloadMessage("path", true));
} catch (IOException e) {
// Ignore
}
};
env.folderWatcher().addListener(listener);
}
@Override
public void onFrame(Frame frame) throws IOException {
if (frame.type().equals(TEXT)) {
IncomingHelloMessage message = frame.as(IncomingHelloMessage.class);
if ("hello".equals(message.command)) {
if (message.protocols.contains(VERSION_7)) {
session.send(TEXT, new OutgoingHelloMessage("Fluent-http", singletonList(VERSION_7)));
} else {
close();
}
}
}
}
@Override
public void onClose(int code, String reason) throws IOException {
close();
}
private void close() throws IOException {
env.folderWatcher().removeListener(listener);
session.close();
}
}