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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.tuscany.sca.binding.websocket.runtime;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* This servlet serves the generated javascript service proxies.
*/
public class JavascriptResourceServlet extends HttpServlet {
private static final String WEBSOCKET_TOOLKIT_PATH = "js/TuscanyWebsocketToolkit.js";
private String websocketToolkit;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException {
try {
resp.setContentType("text/javascript");
OutputStream os = resp.getOutputStream();
os.write("var Tuscany = new function() {\n".getBytes());
os.write(getWebsocketToolkit().getBytes());
os.write(JavascriptGenerator.getServiceProxies().getBytes());
os.write("}\n".getBytes());
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private String getWebsocketToolkit() {
if (websocketToolkit == null) {
websocketToolkit = getResource(WEBSOCKET_TOOLKIT_PATH);
}
return websocketToolkit;
}
/**
* Read a resource from the disk by relative path.
*/
private String getResource(String path) {
InputStream is = getClass().getClassLoader().getResourceAsStream(path);
BufferedReader r = new BufferedReader(new InputStreamReader(is));
StringBuilder builder = new StringBuilder();
try {
String line = null;
while ((line = r.readLine()) != null) {
builder.append(line + "\n");
}
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
try {
r.close();
} catch (IOException ignored) {
}
}
return builder.toString();
}
}
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