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gzip encoding for route result

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This commit is contained in:
Arndt Brenschede 2018-12-31 16:53:31 +01:00
parent a9e8731b3e
commit 664925133a
1 changed files with 24 additions and 2 deletions
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26
brouter-server/src/main/java/btools/server/RouteServer.java
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@ -2,11 +2,13 @@ package btools.server;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
@ -20,6 +22,7 @@ import java.util.Locale;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.TreeMap;
import java.util.zip.GZIPOutputStream;
import btools.router.OsmNodeNamed;
import btools.router.OsmTrack;
@ -68,6 +71,7 @@ public class RouteServer extends Thread
// first line
String getline = null;
String agent = null;
String encodings = null;
// more headers until first empty line
for(;;)
@ -90,6 +94,10 @@ public class RouteServer extends Thread
{
agent = line.substring( "User-Agent: ".length() );
}
if ( line.startsWith( "Accept-Encoding: " ) )
{
encodings = line.substring( "Accept-Encoding: ".length() );
}
}
String excludedAgents = System.getProperty( "excludedAgents" );
@ -194,10 +202,24 @@ public class RouteServer extends Thread
else
{
OsmTrack track = cr.getFoundTrack();
writeHttpHeader(bw, handler.getMimeType(), handler.getFileName());
String headers = encodings == null || encodings.indexOf( "gzip" ) < 0 ? null : "Content-Encoding: gzip\n";
writeHttpHeader(bw, handler.getMimeType(), handler.getFileName(), headers );
if ( track != null )
{
bw.write( handler.formatTrack(track) );
if ( headers != null ) // compressed
{
java.io.ByteArrayOutputStream baos = new ByteArrayOutputStream();
Writer w = new OutputStreamWriter( new GZIPOutputStream( baos ), "UTF-8" );
w.write( handler.formatTrack(track) );
w.close();
bw.flush();
clientSocket.getOutputStream().write( baos.toByteArray() );
}
else
{
bw.write( handler.formatTrack(track) );
}
}
}
bw.flush();