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/*******************************************************************************
* Copyright (c) 2016 Raymond Augé and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Raymond Augé <raymond.auge@liferay.com> - initial implementation
*******************************************************************************/
package org.eclipse.equinox.http.servlet.tests.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
public class EventHandler {
public void close() {
try {
thread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
public void handle(Map<String, String> eventMap) {
System.out.println("==event==\n" + eventMap.get("data"));
}
public void open(final InputStream inputStream) {
Runnable streamProcessorThread = new Runnable() {
@Override
public void run() {
System.out.println("==event stream opened==");
// Ref: https://html.spec.whatwg.org/multipage/comms.html#server-sent-events
Map<String, String> eventMap = new HashMap<String, String>();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String current;
try {
while ((current = reader.readLine()) != null) {
if (current.length() == 0) {
handle(eventMap);
eventMap = new HashMap<String, String>();
continue;
}
int colon = current.indexOf('\u003A');
if (colon == 0) {
// ignore comment lines
continue;
}
else if (colon < 0) {
// No colon? Entire line must be treated as the key with blank value
eventMap.put(current, "");
continue;
}
String key = current.substring(0, colon);
String value = current.substring(colon + 1);
if (value.startsWith("\u0020")) {
value = value.substring(1);
}
if (eventMap.containsKey(key)) {
String currentValue = eventMap.get(key);
value = currentValue + '\n' + value;
}
eventMap.put(key, value);
}
}
catch (IOException e) {
e.printStackTrace();
}
finally {
try {
inputStream.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
// Ignore remaining content which is not a well formed event
System.out.println("==event stream closed==");
}
};
thread = new Thread(streamProcessorThread);
thread.start();
}
private Thread thread;
}
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