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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.restapi;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.yahoo.container.jdisc.HttpRequest;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.container.jdisc.ThreadedHttpRequestHandler;
import com.yahoo.jdisc.http.server.jetty.testutils.TestDriver;
import com.yahoo.jdisc.test.MockMetric;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.OptionalInt;
import java.util.concurrent.Executors;
import static com.yahoo.yolean.Exceptions.uncheck;
/**
* Test driver for {@link RestApi}
*
* @author bjorncs
*/
public class RestApiTestDriver implements AutoCloseable {
private final RestApiRequestHandler<?> handler;
private final TestDriver testDriver;
private RestApiTestDriver(Builder builder) {
this.handler = builder.handler;
this.testDriver = builder.jdiscHttpServer ? TestDriver.newBuilder().withRequestHandler(builder.handler).build() : null;
}
public static Builder newBuilder(RestApiRequestHandler<?> handler) { return new Builder(handler); }
@FunctionalInterface public interface RestApiRequestHandlerFactory { RestApiRequestHandler<?> create(ThreadedHttpRequestHandler.Context context); }
public static Builder newBuilder(RestApiRequestHandlerFactory factory) { return new Builder(factory); }
public static ThreadedHttpRequestHandler.Context createHandlerTestContext() {
return new ThreadedHttpRequestHandler.Context(Executors.newSingleThreadExecutor(), new MockMetric());
}
public OptionalInt listenPort() {
return testDriver != null ? OptionalInt.of(testDriver.server().getListenPort()) : OptionalInt.empty();
}
public RestApiRequestHandler<?> handler() { return handler; }
public RestApi restApi() { return handler.restApi(); }
public ObjectMapper jacksonJsonMapper() { return handler.restApi().jacksonJsonMapper(); }
public HttpResponse executeRequest(HttpRequest request) { return handler.handle(request); }
public InputStream requestContentOf(Object jacksonEntity) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
uncheck(() -> handler.restApi().jacksonJsonMapper().writeValue(out, jacksonEntity));
return new ByteArrayInputStream(out.toByteArray());
}
public <T> T parseJacksonResponseContent(HttpResponse response, TypeReference<T> type) {
return uncheck(() -> handler.restApi().jacksonJsonMapper().readValue(responseData(response), type));
}
public <T> T parseJacksonResponseContent(HttpResponse response, Class<T> type) {
return uncheck(() -> handler.restApi().jacksonJsonMapper().readValue(responseData(response), type));
}
private static byte[] responseData(HttpResponse response) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
uncheck(() -> response.render(out));
return out.toByteArray();
}
@Override
public void close() throws Exception {
if (testDriver != null) {
testDriver.close();
}
}
public static class Builder {
private final RestApiRequestHandler<?> handler;
private boolean jdiscHttpServer = false;
private Builder(RestApiRequestHandler<?> handler) {
this.handler = handler;
}
private Builder(RestApiRequestHandlerFactory factory) { this(factory.create(createHandlerTestContext())); }
public Builder withJdiscHttpServer() { this.jdiscHttpServer = true; return this; }
public RestApiTestDriver build() { return new RestApiTestDriver(this); }
}
}
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