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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see .
*/
package net.sf.jasperreports.phantomjs;
import java.io.IOException;
import java.io.InputStream;
import java.net.SocketTimeoutException;
import java.nio.charset.StandardCharsets;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpEntity;
import org.apache.http.StatusLine;
import org.apache.http.client.config.CookieSpecs;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.util.JRLoader;
/**
* @author Lucian Chirita ([email protected])
*/
public class ProcessConnection
{
private static final Log log = LogFactory.getLog(ProcessConnection.class);
private PhantomJSProcess process;
private CloseableHttpClient httpClient;
public ProcessConnection(ProcessDirector director, PhantomJSProcess process)
{
this.process = process;
HttpClientBuilder clientBuilder = HttpClients.custom();
// single connection
BasicHttpClientConnectionManager connManager = new BasicHttpClientConnectionManager();
clientBuilder.setConnectionManager(connManager);
RequestConfig requestConfig = RequestConfig.custom()
// ignore cookies for now
.setCookieSpec(CookieSpecs.IGNORE_COOKIES)
.setSocketTimeout(director.getRequestTimeout()).build();
clientBuilder.setDefaultRequestConfig(requestConfig);
this.httpClient = clientBuilder.build();
}
public String runRequest(String data)
{
HttpPost httpPost = new HttpPost(process.getListenURI());
HttpEntity postEntity = new ByteArrayEntity(data.getBytes(StandardCharsets.UTF_8));
httpPost.setEntity(postEntity);
if (log.isDebugEnabled())
{
log.debug(process.getId() + " executing HTTP at " + process.getListenURI());
}
try (CloseableHttpResponse response = httpClient.execute(httpPost))
{
StatusLine status = response.getStatusLine();
if (log.isDebugEnabled())
{
log.debug(process.getId() + " HTTP response status " + status);
}
HttpEntity entity = response.getEntity();
if (entity == null)
{
throw new JRRuntimeException("Empty from PhantomJS");
}
if (status.getStatusCode() >= 300)
{
if (entity.getContentType() != null && entity.getContentType().getValue() != null
&& entity.getContentType().getValue().startsWith("text/plain"))
{
String responseContents = EntityUtils.toString(entity, StandardCharsets.UTF_8);
log.error("PhantomJS process " + process.getId() + " error: " + responseContents);
}
else
{
EntityUtils.consumeQuietly(entity);
}
throw new JRRuntimeException("Unexpected status " + status + " from PhantomJS");
}
byte[] responseData;
try (InputStream responseStream = entity.getContent())
{
responseData = JRLoader.loadBytes(responseStream);
}
//TODO lucianc return the bytes
return new String(responseData, StandardCharsets.UTF_8);
}
catch (SocketTimeoutException e)
{
log.error(process.getId() + " request timed out");
throw new RequestTimeoutException(e);
}
catch (JRException | IOException e)
{
throw new JRRuntimeException(e);
}
}
public void dispose()
{
try
{
httpClient.close();
}
catch (IOException e)
{
log.warn(process.getId() + " failed to close HttpClient", e);
}
}
}