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package com.google.refine.appengine;
import static com.google.appengine.api.urlfetch.FetchOptions.Builder.allowTruncate;
import java.io.ByteArrayOutputStream;
import java.net.InetAddress;
import java.net.URL;
import java.util.concurrent.TimeUnit;
import javax.net.ssl.SSLSession;
import org.apache.http.Header;
import org.apache.http.HttpConnectionMetrics;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolVersion;
import org.apache.http.conn.ManagedClientConnection;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.entity.ByteArrayEntity;
import org.apache.http.message.BasicHttpResponse;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HttpContext;
import com.google.appengine.api.urlfetch.HTTPHeader;
import com.google.appengine.api.urlfetch.HTTPMethod;
import com.google.appengine.api.urlfetch.HTTPRequest;
import com.google.appengine.api.urlfetch.HTTPResponse;
import com.google.appengine.api.urlfetch.URLFetchService;
import com.google.appengine.api.urlfetch.URLFetchServiceFactory;
class AppEngineClientConnection implements ManagedClientConnection {
// Managed is the composition of ConnectionReleaseTrigger,
// HttpClientConnection, HttpConnection, HttpInetConnection
private HttpRoute _route;
private Object _state;
private boolean _reuseable;
public AppEngineClientConnection(HttpRoute route, Object state) {
_route = route;
_state = state;
}
// ManagedClientConnection methods
public HttpRoute getRoute() {
return _route;
}
public Object getState() {
return _state;
}
public SSLSession getSSLSession() {
return null;
}
public boolean isSecure() {
// XXX maybe parse the url to see if it's https?
return false;
}
public boolean isMarkedReusable() {
return _reuseable;
}
public void markReusable() {
_reuseable = true;
}
public void layerProtocol(HttpContext context, HttpParams params) {
return;
}
public void open(HttpRoute route, HttpContext context, HttpParams params) {
return;
}
public void setIdleDuration(long duration, TimeUnit unit) {
return;
}
public void setState(Object state) {
_state = state;
}
public void tunnelProxy(HttpHost next, boolean secure, HttpParams params) {
return;
}
public void tunnelTarget(boolean secure, HttpParams params) {
return;
}
public void unmarkReusable() {
_reuseable = false;
}
// ConnectionReleaseTrigger methods
public void releaseConnection() {
return;
}
public void abortConnection() {
return;
}
// HttpClientConnection methods
private HTTPRequest _appengine_hrequest;
private HTTPResponse _appengine_hresponse;
public void flush() {
return;
}
public boolean isResponseAvailable(int timeout) {
// XXX possibly use Async fetcher
return true;
}
public void receiveResponseEntity(org.apache.http.HttpResponse apache_response) {
byte[] data = _appengine_hresponse.getContent();
if (data != null) {
apache_response.setEntity(new ByteArrayEntity(data));
}
}
public HttpResponse receiveResponseHeader() {
URLFetchService ufs = URLFetchServiceFactory.getURLFetchService();
try {
_appengine_hresponse = ufs.fetch(_appengine_hrequest);
} catch (java.io.IOException e) {
throw new RuntimeException(e);
}
org.apache.http.HttpResponse apache_response =
new BasicHttpResponse(new ProtocolVersion("HTTP", 1, 0),
_appengine_hresponse.getResponseCode(),
null);
for (HTTPHeader h : _appengine_hresponse.getHeaders()) {
apache_response.addHeader(h.getName(), h.getValue());
}
return apache_response;
}
public void sendRequestEntity(org.apache.http.HttpEntityEnclosingRequest request) {
ByteArrayOutputStream os = new ByteArrayOutputStream();
org.apache.http.HttpEntity ent = request.getEntity();
if (ent != null) {
try {
ent.writeTo(os);
} catch (java.io.IOException e) {
throw new RuntimeException(e);
}
}
_appengine_hrequest.setPayload(os.toByteArray());
}
public void sendRequestHeader(org.apache.http.HttpRequest apache_request) {
URL request_url;
HttpHost host = _route.getTargetHost();
String protocol = host.getSchemeName();
String addr = host.getHostName();
int port = host.getPort();
String path = apache_request.getRequestLine().getUri();
try {
request_url = new URL(protocol, addr, port, path);
} catch (java.net.MalformedURLException e) {
throw new RuntimeException(e);
}
HTTPMethod method = HTTPMethod.valueOf(apache_request.getRequestLine().getMethod());
_appengine_hrequest = new HTTPRequest(request_url, method, allowTruncate()
.doNotFollowRedirects());
Header[] apache_headers = apache_request.getAllHeaders();
for (int i = 0; i < apache_headers.length; i++) {
Header h = apache_headers[i];
_appengine_hrequest
.setHeader(new HTTPHeader(h.getName(), h.getValue()));
}
}
// HttpConnection methods
public void close() {
return;
}
public HttpConnectionMetrics getMetrics() {
return null;
}
public int getSocketTimeout() {
return -1;
}
public boolean isOpen() {
return true;
}
public boolean isStale() {
return false;
}
public void setSocketTimeout(int timeout) {
return;
}
public void shutdown() {
return;
}
// HttpInetConnection methods
public InetAddress getLocalAddress() {
return null;
}
public int getLocalPort() {
return -1;
}
public InetAddress getRemoteAddress() {
return null;
}
public int getRemotePort() {
return -1;
}
}