/**
* Copyright (c) 2002-2013 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.rest.graphdb;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.ClientHandlerException;
import com.sun.jersey.api.client.ClientRequest;
import com.sun.jersey.api.client.ClientResponse;
import com.sun.jersey.api.client.filter.ClientFilter;
/**
* @author mh
* @since 10.08.12
*/
public class UserAgent {
public static final String NEO4J_DRIVER_PROPERTY = "org.neo4j.rest.driver";
private final String userAgent = determineUserAgent();
private String determineUserAgent() {
String property = System.getProperty(NEO4J_DRIVER_PROPERTY);
if (property == null || property.trim().isEmpty()) {
final Properties props = loadPomProperties();
return String.format("%s/%s", props.getProperty("artifactId", "neo4j-rest-graphdb"), props.getProperty("version", "0"));
}
return property;
}
private Properties loadPomProperties() {
final Properties props = new Properties();
try {
final InputStream is = getClass().getClassLoader().getResourceAsStream("/META-INF/maven/org.neo4j/neo4j-rest-graphdb/pom.properties");
if (is!=null) {
props.load(is);
is.close();
}
} catch (Exception e) {
// ignore
}
return props;
}
public void install(Client client) {
client.addFilter(new ClientFilter() {
@Override
public ClientResponse handle(ClientRequest cr) throws ClientHandlerException {
cr.getHeaders().add("User-Agent", userAgent);
return getNext().handle(cr);
}
});
}
}