com.datatorrent.lib.io.HttpPostOutputOperatorTest.java Source code

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Here is the source code for com.datatorrent.lib.io.HttpPostOutputOperatorTest.java

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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.
 */
package com.datatorrent.lib.io;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.Consumes;
import javax.ws.rs.core.MediaType;

import org.codehaus.jettison.json.JSONObject;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.junit.Assert;
import org.junit.Test;

import org.apache.commons.io.IOUtils;

/**
 * Functional test for {@link com.datatorrent.lib.io.HttpPostOutputOperator}.
 */
public class HttpPostOutputOperatorTest {
    boolean receivedMessage = false;

    @Test
    public void testHttpOutputNode() throws Exception {

        final List<String> receivedMessages = new ArrayList<String>();
        Handler handler = new AbstractHandler() {
            @Override
            @Consumes({ MediaType.APPLICATION_JSON })
            public void handle(String string, Request rq, HttpServletRequest request, HttpServletResponse response)
                    throws IOException, ServletException {
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                IOUtils.copy(request.getInputStream(), bos);
                receivedMessages.add(new String(bos.toByteArray()));
                response.setContentType("text/html");
                response.setStatus(HttpServletResponse.SC_OK);
                response.getWriter().println("<h1>Thanks</h1>");
                ((Request) request).setHandled(true);
                receivedMessage = true;
            }

        };

        Server server = new Server(0);
        server.setHandler(handler);
        server.start();

        String url = "http://localhost:" + server.getConnectors()[0].getLocalPort() + "/somecontext";

        HttpPostOutputOperator<Object> node = new HttpPostOutputOperator<Object>();
        node.setUrl(url);

        node.setup(null);

        Map<String, String> data = new HashMap<String, String>();
        data.put("somekey", "somevalue");
        node.input.process(data);

        // Wait till the message is received or a maximum timeout elapses
        int timeoutMillis = 10000;
        while (!receivedMessage && timeoutMillis > 0) {
            timeoutMillis -= 20;
            Thread.sleep(20);
        }

        Assert.assertEquals("number requests", 1, receivedMessages.size());
        JSONObject json = new JSONObject(data);
        Assert.assertTrue("request body " + receivedMessages.get(0),
                receivedMessages.get(0).contains(json.toString()));

        receivedMessages.clear();
        String stringData = "stringData";
        node.input.process(stringData);
        Assert.assertEquals("number requests", 1, receivedMessages.size());
        Assert.assertEquals("request body " + receivedMessages.get(0), stringData, receivedMessages.get(0));

        node.teardown();
        server.stop();
    }

}