/*
 *   Copyright 2013 Brian Rosenberger (Brutex Network)
 *
 *   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.brutex.emitter;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.EntityBuilder;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.log4j.Logger;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * Construct a HTTP POST and send it.
 *
 * @author Brian Rosenberger, bru(at)brutex.de
 * @since 0.1
 */
public class SimpleHttpEvent {
	
	private final Logger logger = Logger.getLogger(SimpleHttpEvent.class);
	private final String url;
	private final String soapBody;
	private long duration = 0;
	
	/**
	 * Instantiates a new simple http event.
	 *
	 * @param url the url
	 * @param soapBody the soap body
	 */
	public SimpleHttpEvent(String url, String soapBody) {
		this.url = url;
		this.soapBody = soapBody;
	}

	/**
	 * Send soap.
	 *
	 * @param isDropResponse show interest in response or not
	 * @throws ClientProtocolException the client protocol exception
	 * @throws IOException             Signals that an I/O exception has occurred.
	 */
	public void sendSoap(boolean isDropResponse) throws ClientProtocolException, IOException {
		long start = System.currentTimeMillis();
		HttpPost post = new HttpPost(url);
		post.addHeader("Accept", "text/xml");
		post.addHeader("Content-Type", "text/xml; charset=utf-8");
		post.addHeader("SOAPAction", "");
		EntityBuilder entitybuilder = EntityBuilder.create();
		entitybuilder.setContentEncoding("UTF-8");
		entitybuilder.setText(soapBody);
		HttpEntity entity = entitybuilder.build();
		post.setEntity(entity);

		CloseableHttpClient httpclient = HttpClients.createDefault();
		HttpResponse r = httpclient.execute(post);
		logger.debug("Sending event to ALF event manager");
		if (!isDropResponse) {
			HttpEntity e = r.getEntity();
			StringBuilder sb = new StringBuilder();
			BufferedReader in = new BufferedReader(new InputStreamReader(e.getContent()));
			String s;
			while( (s=in.readLine()) != null) {
			   sb.append(s);
			}
			logger.debug("Response: \n " + sb.toString());
        } else {
        	logger.debug("Response was dropped.");
        }
        duration = System.currentTimeMillis() - start;
	}
	
	/**
	 * Get the response time of the soap call in milliseconds.
	 * 
	 * @return duration or '0' if not yet executed
	 */
	public long getDuration() {
		return duration;
	}
}