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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription.impl;
import com.yahoo.jrt.Request;
import com.yahoo.jrt.RequestWaiter;
import com.yahoo.jrt.Supervisor;
import com.yahoo.vespa.config.ConfigPayload;
import com.yahoo.vespa.config.Connection;
import com.yahoo.vespa.config.ConnectionPool;
import com.yahoo.vespa.config.protocol.JRTServerConfigRequestV3;
import com.yahoo.vespa.config.protocol.Payload;
import com.yahoo.vespa.config.util.ConfigUtils;
/**
* For unit testing
*
* @author hmusum
*/
public class MockConnection implements ConnectionPool, com.yahoo.vespa.config.Connection {
private Request lastRequest;
private final ResponseHandler responseHandler;
private int numberOfRequests = 0;
public int getNumberOfFailovers() {
return numberOfFailovers;
}
private int numberOfFailovers = 0;
private final int numSpecs;
public MockConnection() {
this(new OKResponseHandler());
}
public MockConnection(ResponseHandler responseHandler) {
this(responseHandler, 1);
}
public MockConnection(ResponseHandler responseHandler, int numSpecs) {
this.responseHandler = responseHandler;
this.numSpecs = numSpecs;
}
@Override
public void invokeAsync(Request request, double jrtTimeout, RequestWaiter requestWaiter) {
numberOfRequests++;
lastRequest = request;
responseHandler.requestWaiter(requestWaiter).request(request);
Thread t = new Thread(responseHandler);
t.setDaemon(true);
t.run();
}
@Override
public void invokeSync(Request request, double jrtTimeout) {
numberOfRequests++;
lastRequest = request;
}
@Override
public void setError(int errorCode) {
numberOfFailovers++;
}
@Override
public void setSuccess() {
numberOfFailovers = 0;
}
@Override
public String getAddress() {
return null;
}
@Override
public void close() {}
@Override
public void setError(Connection connection, int errorCode) {
connection.setError(errorCode);
}
@Override
public Connection getCurrent() {
return this;
}
@Override
public Connection setNewCurrentConnection() {
return this;
}
@Override
public int getSize() {
return numSpecs;
}
@Override
public Supervisor getSupervisor() {
return null;
}
public int getNumberOfRequests() {
return numberOfRequests;
}
public Request getRequest() {
return lastRequest;
}
static class OKResponseHandler extends AbstractResponseHandler {
protected void createResponse() {
JRTServerConfigRequestV3 jrtReq = JRTServerConfigRequestV3.createFromRequest(request);
Payload payload = Payload.from(ConfigPayload.empty());
long generation = 1;
jrtReq.addOkResponse(payload, generation, false, ConfigUtils.getMd5(payload.getData()));
}
}
public interface ResponseHandler extends Runnable {
RequestWaiter requestWaiter();
Request request();
ResponseHandler requestWaiter(RequestWaiter requestWaiter);
ResponseHandler request(Request request);
}
public abstract static class AbstractResponseHandler implements ResponseHandler {
private RequestWaiter requestWaiter;
protected Request request;
@Override
public RequestWaiter requestWaiter() {
return requestWaiter;
}
@Override
public Request request() {
return request;
}
@Override
public ResponseHandler requestWaiter(RequestWaiter requestWaiter) {
this.requestWaiter = requestWaiter;
return this;
}
@Override
public ResponseHandler request(Request request) {
this.request = request;
return this;
}
@Override
public void run() {
createResponse();
requestWaiter.handleRequestDone(request);
}
protected abstract void createResponse();
}
}
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