com.couchbase.client.core.msg.view.ViewRequest Maven / Gradle / Ivy

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The official Couchbase JVM Core IO Library
There is a newer version: 2.7.0
/*
 * Copyright (c) 2019 Couchbase, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.couchbase.client.core.msg.view;

import com.couchbase.client.core.CoreContext;
import com.couchbase.client.core.cnc.CbTracing;
import com.couchbase.client.core.cnc.RequestSpan;
import com.couchbase.client.core.cnc.TracingIdentifiers;
import com.couchbase.client.core.deps.io.netty.buffer.ByteBuf;
import com.couchbase.client.core.deps.io.netty.buffer.Unpooled;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.DefaultFullHttpRequest;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.FullHttpRequest;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.HttpHeaderNames;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.HttpHeaderValues;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.HttpMethod;
import com.couchbase.client.core.deps.io.netty.handler.codec.http.HttpVersion;
import com.couchbase.client.core.env.Authenticator;
import com.couchbase.client.core.msg.BaseRequest;
import com.couchbase.client.core.msg.HttpRequest;
import com.couchbase.client.core.msg.ResponseStatus;
import com.couchbase.client.core.msg.ScopedRequest;
import com.couchbase.client.core.retry.RetryStrategy;
import com.couchbase.client.core.service.ServiceType;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

import java.time.Duration;
import java.util.Map;
import java.util.Optional;
import java.util.TreeMap;

import static com.couchbase.client.core.logging.RedactableArgument.redactMeta;
import static java.util.Objects.requireNonNull;

public class ViewRequest extends BaseRequest
  implements HttpRequest, ScopedRequest {

  private final Authenticator authenticator;
  private final String bucket;
  private final boolean development;
  private final String design;
  private final String view;
  private final String query;
  private final Optional keysJson;

  public ViewRequest(final Duration timeout, final CoreContext ctx, final RetryStrategy retryStrategy,
                     final Authenticator authenticator, final String bucket, final String design,
                     final String view, final String query, Optional keysJson,
                     final boolean development, final RequestSpan span) {
    super(timeout, ctx, retryStrategy, span);
    this.authenticator = requireNonNull(authenticator);
    this.bucket = requireNonNull(bucket);
    this.design = requireNonNull(design);
    this.view = requireNonNull(view);
    this.development = development;
    this.query = requireNonNull(query);
    this.keysJson = requireNonNull(keysJson);

    if (span != null && !CbTracing.isInternalSpan(span)) {
      span.attribute(TracingIdentifiers.ATTR_SERVICE, TracingIdentifiers.SERVICE_VIEWS);
      span.attribute(TracingIdentifiers.ATTR_OPERATION, "/" + design + "/" + view);
      span.attribute(TracingIdentifiers.ATTR_NAME, bucket);
    }
  }

  @Override
  public ServiceType serviceType() {
    return ServiceType.VIEWS;
  }

  @Override
  public FullHttpRequest encode() {
    StringBuilder path = new StringBuilder();
    path.append("/").append(bucket).append("/_design/");
    path.append(development ? "dev_" + design : design);
    path.append("/_view/");
    path.append(view);
    path.append("?").append(query);

    ByteBuf content = keysJson.isPresent()
      ? Unpooled.copiedBuffer(keysJson.get())
      : Unpooled.EMPTY_BUFFER;
    HttpMethod method = keysJson.isPresent()
      ? HttpMethod.POST
      : HttpMethod.GET;

    FullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, method,
      path.toString(), content);

    request.headers()
      .set(HttpHeaderNames.CONTENT_TYPE, HttpHeaderValues.APPLICATION_JSON)
      .set(HttpHeaderNames.CONTENT_LENGTH, content.readableBytes())
      .set(HttpHeaderNames.USER_AGENT, context().environment().userAgent().formattedLong());

    authenticator.authHttpRequest(serviceType(), request);
    return request;
  }

  @Override
  public ViewResponse decode(final ResponseStatus status, final ViewChunkHeader header,
                             final Flux rows, final Mono trailer) {
    return new ViewResponse(status, header, rows, trailer);
  }


  @Override
  public String bucket() {
    return bucket;
  }

  @Override
  public boolean idempotent() {
    return true;
  }

  @Override
  public Map serviceContext() {
    Map ctx = new TreeMap<>();
    ctx.put("type", serviceType().ident());
    ctx.put("bucket", redactMeta(bucket));
    ctx.put("designDoc", redactMeta(design));
    ctx.put("viewName", redactMeta(view));
    ctx.put("development", development);
    return ctx;
  }

  @Override
  public String name() {
    return "views";
  }
}