/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
* WSO2 Inc. licenses this file to you 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 org.wso2.carbon.inbound.endpoint.protocol.websocket;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.SynapseException;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.regex.Pattern;
public class SubprotocolBuilderUtil {
private static String SYNAPSE_SUBPROTOCOL_PREFIX = "synapse(";
private static String SYNAPSE_SUBPROTOCOL_SUFFIX = ")";
private static String SYNAPSE_CONTENT_TYPE = "contentType=";
private static String SUBPROTOCOL_SEPERATOR = ",";
private static final Log log = LogFactory.getLog(SubprotocolBuilderUtil.class);
public static String buildSubprotocolString(ArrayList<String> contentType,
ArrayList<String> otherSubprotocols) {
String array = "";
if (contentType != null && !contentType.isEmpty()) {
for (String content : contentType) {
String temp = SYNAPSE_SUBPROTOCOL_PREFIX + SYNAPSE_CONTENT_TYPE + "'" + content +
"'" + SYNAPSE_SUBPROTOCOL_SUFFIX;
array = array.concat(temp).concat(",");
}
}
if (otherSubprotocols != null && !otherSubprotocols.isEmpty()) {
for (String protocol : otherSubprotocols) {
array = array.concat(protocol).concat(",");
}
}
return array;
}
public static String syanapeSubprotocolToContentType(String subprotocol) {
Pattern pattern = Pattern.compile(SYNAPSE_SUBPROTOCOL_PREFIX + ".*" + SYNAPSE_SUBPROTOCOL_SUFFIX);
if (pattern.matcher(subprotocol).matches()) {
subprotocol = subprotocol.replace(SYNAPSE_SUBPROTOCOL_PREFIX + SYNAPSE_CONTENT_TYPE + "'", "")
.replace("'" + SYNAPSE_SUBPROTOCOL_SUFFIX, "");
subprotocol = subprotocol.trim();
return subprotocol;
} else {
return null;
}
}
public static String extractSynapseSubprotocol(String combinedSubprotocol) {
String[] subprotocolArray = combinedSubprotocol.split(SUBPROTOCOL_SEPERATOR);
for (String subprotocol : subprotocolArray) {
if (subprotocol.contains(InboundWebsocketConstants.SYNAPSE_SUBPROTOCOL_PREFIX)) {
return subprotocol;
}
}
return null;
}
public static String contentTypeToSyanapeSubprotocol(String contentType) {
return SYNAPSE_SUBPROTOCOL_PREFIX + SYNAPSE_CONTENT_TYPE + "'" + contentType +
"'" + SYNAPSE_SUBPROTOCOL_SUFFIX;
}
public static ArrayList<AbstractSubprotocolHandler> stringToSubprotocolHandlers(String handlerClasses) {
ArrayList<AbstractSubprotocolHandler> handlerInstances = new ArrayList<>();
if (handlerClasses != null) {
String[] arrayClassesImpl = handlerClasses.split(";");
for (String classImpl : arrayClassesImpl) {
try {
Class c = Class.forName(classImpl);
Constructor cons = c.getConstructor();
AbstractSubprotocolHandler handlerInstance = (AbstractSubprotocolHandler) cons.newInstance();
handlerInstances.add(handlerInstance);
} catch (ClassNotFoundException e) {
String msg = "Class " + classImpl +
" not found. Please check the required class is added to the classpath.";
log.error(msg, e);
throw new SynapseException(e);
} catch (NoSuchMethodException e) {
String msg = "Required constructor is not implemented.";
log.error(msg, e);
throw new SynapseException(e);
} catch (java.lang.InstantiationException |
java.lang.IllegalAccessException |
java.lang.reflect.InvocationTargetException e) {
String msg = "Couldn't create the class instance.";
log.error(msg, e);
throw new SynapseException(e);
}
}
}
return handlerInstances;
}
}