@Override
  public void handleRequest(RestRequest request, RestChannel channel) {
    if (logger.isDebugEnabled()) logger.debug("REST DropboxAction called");

    try {
      XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
      builder
          .startObject()
          .startArray("usage")
          .startObject()
          .field(new XContentBuilderString("method"), "GET")
          .field(new XContentBuilderString("endpoint"), "/_dropbox/")
          .field(new XContentBuilderString("comment"), "This help")
          .endObject()
          .startObject()
          .field(new XContentBuilderString("method"), "GET")
          .field(new XContentBuilderString("endpoint"), "/_dropbox/oauth/{appkey}/{appsecret}")
          .field(
              new XContentBuilderString("comment"),
              "Return the OAuth token, secret and url you should redirect your user to")
          .endObject()
          .startObject()
          .field(new XContentBuilderString("method"), "GET")
          .field(
              new XContentBuilderString("endpoint"),
              "/_dropbox/oauth/{appkey}/{appsecret}/{oauth_token}/{oauth_secret}")
          .field(new XContentBuilderString("comment"), "Return the OAuth token/secret for user")
          .endObject()
          .endArray()
          .endObject();
      channel.sendResponse(new XContentRestResponse(request, RestStatus.OK, builder));
    } catch (IOException e) {
      onFailure(channel, request, e);
    }
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    MultiSearchRequest multiSearchRequest = new MultiSearchRequest();
    multiSearchRequest.listenerThreaded(false);

    String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
    String[] types = Strings.splitStringByCommaToArray(request.param("type"));
    IndicesOptions indicesOptions =
        IndicesOptions.fromRequest(request, multiSearchRequest.indicesOptions());

    try {
      multiSearchRequest.add(
          request.content(),
          request.contentUnsafe(),
          indices,
          types,
          request.param("search_type"),
          request.param("routing"),
          indicesOptions,
          allowExplicitIndex);
    } catch (Exception e) {
      try {
        XContentBuilder builder = restContentBuilder(request);
        channel.sendResponse(
            new XContentRestResponse(
                request,
                BAD_REQUEST,
                builder.startObject().field("error", e.getMessage()).endObject()));
      } catch (IOException e1) {
        logger.error("Failed to send failure response", e1);
      }
      return;
    }

    client.multiSearch(
        multiSearchRequest,
        new ActionListener<MultiSearchResponse>() {
          @Override
          public void onResponse(MultiSearchResponse response) {
            try {
              XContentBuilder builder = restContentBuilder(request);
              builder.startObject();
              response.toXContent(builder, request);
              builder.endObject();
              channel.sendResponse(new XContentRestResponse(request, OK, builder));
            } catch (Throwable e) {
              onFailure(e);
            }
          }

          @Override
          public void onFailure(Throwable e) {
            try {
              channel.sendResponse(new XContentThrowableRestResponse(request, e));
            } catch (IOException e1) {
              logger.error("Failed to send failure response", e1);
            }
          }
        });
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    String text = request.param("text");
    if (text == null && request.hasContent()) {
      text = request.content().toUtf8();
    }
    if (text == null) {
      try {
        channel.sendResponse(
            new XContentThrowableRestResponse(
                request, new ElasticsearchIllegalArgumentException("text is missing")));
      } catch (IOException e1) {
        logger.warn("Failed to send response", e1);
      }
      return;
    }

    AnalyzeRequest analyzeRequest = new AnalyzeRequest(request.param("index"), text);
    analyzeRequest.listenerThreaded(false);
    analyzeRequest.preferLocal(
        request.paramAsBoolean("prefer_local", analyzeRequest.preferLocalShard()));
    analyzeRequest.analyzer(request.param("analyzer"));
    analyzeRequest.field(request.param("field"));
    analyzeRequest.tokenizer(request.param("tokenizer"));
    analyzeRequest.tokenFilters(
        request.paramAsStringArray(
            "token_filters", request.paramAsStringArray("filters", analyzeRequest.tokenFilters())));
    analyzeRequest.charFilters(
        request.paramAsStringArray("char_filters", analyzeRequest.charFilters()));
    client
        .admin()
        .indices()
        .analyze(
            analyzeRequest,
            new ActionListener<AnalyzeResponse>() {
              @Override
              public void onResponse(AnalyzeResponse response) {
                try {
                  XContentBuilder builder = restContentBuilder(request, null);
                  builder.startObject();
                  response.toXContent(builder, request);
                  builder.endObject();
                  channel.sendResponse(new XContentRestResponse(request, OK, builder));
                } catch (Throwable e) {
                  onFailure(e);
                }
              }

              @Override
              public void onFailure(Throwable e) {
                try {
                  channel.sendResponse(new XContentThrowableRestResponse(request, e));
                } catch (IOException e1) {
                  logger.error("Failed to send failure response", e1);
                }
              }
            });
  }
  @SuppressWarnings({"unchecked"})
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    PutIndexTemplateRequest putRequest = new PutIndexTemplateRequest(request.param("name"));

    try {
      putRequest.create(request.paramAsBoolean("create", false));
      putRequest.cause(request.param("cause", ""));
      putRequest.timeout(request.paramAsTime("timeout", timeValueSeconds(10)));
      putRequest.source(
          request.contentByteArray(), request.contentByteArrayOffset(), request.contentLength());
    } catch (Exception e) {
      try {
        channel.sendResponse(new XContentThrowableRestResponse(request, e));
      } catch (IOException e1) {
        logger.warn("Failed to send response", e1);
      }
      return;
    }

    putRequest.template(request.param("template", putRequest.template()));
    putRequest.order(request.paramAsInt("order", putRequest.order()));

    client
        .admin()
        .indices()
        .putTemplate(
            putRequest,
            new ActionListener<PutIndexTemplateResponse>() {
              @Override
              public void onResponse(PutIndexTemplateResponse response) {
                try {
                  XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
                  builder
                      .startObject()
                      .field(Fields.OK, true)
                      .field(Fields.ACKNOWLEDGED, response.acknowledged())
                      .endObject();
                  channel.sendResponse(new XContentRestResponse(request, OK, builder));
                } catch (IOException e) {
                  onFailure(e);
                }
              }

              @Override
              public void onFailure(Throwable e) {
                try {
                  channel.sendResponse(new XContentThrowableRestResponse(request, e));
                } catch (IOException e1) {
                  logger.error("Failed to send failure response", e1);
                }
              }
            });
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    final ClusterUpdateSettingsRequest clusterUpdateSettingsRequest =
        Requests.clusterUpdateSettingsRequest();
    clusterUpdateSettingsRequest.listenerThreaded(false);
    try {
      Map<String, Object> source =
          XContentFactory.xContent(request.content()).createParser(request.content()).mapAndClose();
      if (source.containsKey("transient")) {
        clusterUpdateSettingsRequest.transientSettings((Map) source.get("transient"));
      }
      if (source.containsKey("persistent")) {
        clusterUpdateSettingsRequest.persistentSettings((Map) source.get("persistent"));
      }
    } catch (Exception e) {
      try {
        channel.sendResponse(new XContentThrowableRestResponse(request, e));
      } catch (IOException e1) {
        logger.warn("Failed to send response", e1);
      }
      return;
    }

    client
        .admin()
        .cluster()
        .updateSettings(
            clusterUpdateSettingsRequest,
            new ActionListener<ClusterUpdateSettingsResponse>() {
              @Override
              public void onResponse(ClusterUpdateSettingsResponse response) {
                try {
                  channel.sendResponse(new StringRestResponse(RestStatus.OK));
                } catch (Throwable e) {
                  onFailure(e);
                }
              }

              @Override
              public void onFailure(Throwable e) {
                if (logger.isDebugEnabled()) {
                  logger.debug("failed to handle cluster state", e);
                }
                try {
                  channel.sendResponse(new XContentThrowableRestResponse(request, e));
                } catch (IOException e1) {
                  logger.error("Failed to send failure response", e1);
                }
              }
            });
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    UpdateRequest updateRequest =
        new UpdateRequest(request.param("index"), request.param("type"), request.param("id"));
    updateRequest.listenerThreaded(false);
    updateRequest.routing(request.param("routing"));
    updateRequest.parent(
        request.param(
            "parent")); // order is important, set it after routing, so it will set the routing
    updateRequest.timeout(request.paramAsTime("timeout", updateRequest.timeout()));
    updateRequest.refresh(request.paramAsBoolean("refresh", updateRequest.refresh()));
    String replicationType = request.param("replication");
    if (replicationType != null) {
      updateRequest.replicationType(ReplicationType.fromString(replicationType));
    }
    String consistencyLevel = request.param("consistency");
    if (consistencyLevel != null) {
      updateRequest.consistencyLevel(WriteConsistencyLevel.fromString(consistencyLevel));
    }
    updateRequest.percolate(request.param("percolate", null));
    updateRequest.script(request.param("script"));
    updateRequest.scriptLang(request.param("lang"));
    for (Map.Entry<String, String> entry : request.params().entrySet()) {
      if (entry.getKey().startsWith("sp_")) {
        updateRequest.addScriptParam(entry.getKey().substring(3), entry.getValue());
      }
    }
    String sField = request.param("fields");
    if (sField != null) {
      String[] sFields = Strings.splitStringByCommaToArray(sField);
      if (sFields != null) {
        updateRequest.fields(sFields);
      }
    }
    updateRequest.retryOnConflict(
        request.paramAsInt("retry_on_conflict", updateRequest.retryOnConflict()));

    // see if we have it in the body
    if (request.hasContent()) {
      try {
        updateRequest.source(
            request.contentByteArray(), request.contentByteArrayOffset(), request.contentLength());
        IndexRequest upsertRequest = updateRequest.upsertRequest();
        if (upsertRequest != null) {
          upsertRequest.routing(request.param("routing"));
          upsertRequest.parent(
              request.param(
                  "parent")); // order is important, set it after routing, so it will set the
          // routing
          upsertRequest.timestamp(request.param("timestamp"));
          if (request.hasParam("ttl")) {
            upsertRequest.ttl(request.paramAsTime("ttl", null).millis());
          }
          upsertRequest.version(RestActions.parseVersion(request));
          upsertRequest.versionType(
              VersionType.fromString(request.param("version_type"), upsertRequest.versionType()));
        }
        IndexRequest doc = updateRequest.doc();
        if (doc != null) {
          doc.routing(request.param("routing"));
          doc.parent(
              request.param(
                  "parent")); // order is important, set it after routing, so it will set the
          // routing
          doc.timestamp(request.param("timestamp"));
          if (request.hasParam("ttl")) {
            doc.ttl(request.paramAsTime("ttl", null).millis());
          }
          doc.version(RestActions.parseVersion(request));
          doc.versionType(VersionType.fromString(request.param("version_type"), doc.versionType()));
        }
      } catch (Exception e) {
        try {
          channel.sendResponse(new XContentThrowableRestResponse(request, e));
        } catch (IOException e1) {
          logger.warn("Failed to send response", e1);
        }
        return;
      }
    }

    client.update(
        updateRequest,
        new ActionListener<UpdateResponse>() {
          @Override
          public void onResponse(UpdateResponse response) {
            try {
              XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
              builder
                  .startObject()
                  .field(Fields.OK, true)
                  .field(Fields._INDEX, response.index())
                  .field(Fields._TYPE, response.type())
                  .field(Fields._ID, response.id())
                  .field(Fields._VERSION, response.version());

              if (response.getResult() != null) {
                builder.startObject(Fields.GET);
                response.getResult().toXContentEmbedded(builder, request);
                builder.endObject();
              }

              if (response.matches() != null) {
                builder.startArray(Fields.MATCHES);
                for (String match : response.matches()) {
                  builder.value(match);
                }
                builder.endArray();
              }
              builder.endObject();
              RestStatus status = OK;
              if (response.version() == 1) {
                status = CREATED;
              }
              channel.sendResponse(new XContentRestResponse(request, status, builder));
            } catch (Exception e) {
              onFailure(e);
            }
          }

          @Override
          public void onFailure(Throwable e) {
            try {
              channel.sendResponse(new XContentThrowableRestResponse(request, e));
            } catch (IOException e1) {
              logger.error("Failed to send failure response", e1);
            }
          }
        });
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    IndicesAliasesRequest indicesAliasesRequest = new IndicesAliasesRequest();
    indicesAliasesRequest.listenerThreaded(false);
    indicesAliasesRequest.masterNodeTimeout(
        request.paramAsTime("master_timeout", indicesAliasesRequest.masterNodeTimeout()));
    XContentParser parser = null;
    try {
      // {
      //     actions : [
      //         { add : { index : "test1", alias : "alias1", filter : {"user" : "kimchy"} } }
      //         { remove : { index : "test1", alias : "alias1" } }
      //     ]
      // }
      indicesAliasesRequest.timeout(
          request.paramAsTime("timeout", indicesAliasesRequest.timeout()));
      parser = XContentFactory.xContent(request.content()).createParser(request.content());
      XContentParser.Token token = parser.nextToken();
      if (token == null) {
        throw new ElasticsearchIllegalArgumentException("No action is specified");
      }
      while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
        if (token == XContentParser.Token.START_ARRAY) {
          while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
            if (token == XContentParser.Token.FIELD_NAME) {
              String action = parser.currentName();
              AliasAction.Type type;
              if ("add".equals(action)) {
                type = AliasAction.Type.ADD;
              } else if ("remove".equals(action)) {
                type = AliasAction.Type.REMOVE;
              } else {
                throw new ElasticsearchIllegalArgumentException(
                    "Alias action [" + action + "] not supported");
              }
              String index = null;
              String alias = null;
              Map<String, Object> filter = null;
              String routing = null;
              boolean routingSet = false;
              String indexRouting = null;
              boolean indexRoutingSet = false;
              String searchRouting = null;
              boolean searchRoutingSet = false;
              String currentFieldName = null;
              while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
                if (token == XContentParser.Token.FIELD_NAME) {
                  currentFieldName = parser.currentName();
                } else if (token == XContentParser.Token.VALUE_STRING) {
                  if ("index".equals(currentFieldName)) {
                    index = parser.text();
                  } else if ("alias".equals(currentFieldName)) {
                    alias = parser.text();
                  } else if ("routing".equals(currentFieldName)) {
                    routing = parser.textOrNull();
                    routingSet = true;
                  } else if ("indexRouting".equals(currentFieldName)
                      || "index-routing".equals(currentFieldName)
                      || "index_routing".equals(currentFieldName)) {
                    indexRouting = parser.textOrNull();
                    indexRoutingSet = true;
                  } else if ("searchRouting".equals(currentFieldName)
                      || "search-routing".equals(currentFieldName)
                      || "search_routing".equals(currentFieldName)) {
                    searchRouting = parser.textOrNull();
                    searchRoutingSet = true;
                  }
                } else if (token == XContentParser.Token.START_OBJECT) {
                  if ("filter".equals(currentFieldName)) {
                    filter = parser.mapOrdered();
                  }
                }
              }

              if (type == AliasAction.Type.ADD) {
                AliasAction aliasAction = newAddAliasAction(index, alias).filter(filter);
                if (routingSet) {
                  aliasAction.routing(routing);
                }
                if (indexRoutingSet) {
                  aliasAction.indexRouting(indexRouting);
                }
                if (searchRoutingSet) {
                  aliasAction.searchRouting(searchRouting);
                }
                indicesAliasesRequest.addAliasAction(aliasAction);
              } else if (type == AliasAction.Type.REMOVE) {
                indicesAliasesRequest.removeAlias(index, alias);
              }
            }
          }
        }
      }
    } catch (Exception e) {
      try {
        channel.sendResponse(new XContentThrowableRestResponse(request, e));
      } catch (IOException e1) {
        logger.warn("Failed to send response", e1);
      }
      return;
    } finally {
      parser.close();
    }
    client
        .admin()
        .indices()
        .aliases(
            indicesAliasesRequest,
            new AcknowledgedRestResponseActionListener<IndicesAliasesResponse>(
                request, channel, logger));
  }
  @Override
  public void handleRequest(final RestRequest request, final RestChannel channel) {
    OptimizeRequest optimizeRequest =
        new OptimizeRequest(RestActions.splitIndices(request.param("index")));
    optimizeRequest.listenerThreaded(false);
    if (request.hasParam("ignore_indices")) {
      optimizeRequest.ignoreIndices(IgnoreIndices.fromString(request.param("ignore_indices")));
    }
    try {
      optimizeRequest.waitForMerge(
          request.paramAsBoolean("wait_for_merge", optimizeRequest.waitForMerge()));
      optimizeRequest.maxNumSegments(
          request.paramAsInt("max_num_segments", optimizeRequest.maxNumSegments()));
      optimizeRequest.onlyExpungeDeletes(
          request.paramAsBoolean("only_expunge_deletes", optimizeRequest.onlyExpungeDeletes()));
      optimizeRequest.flush(request.paramAsBoolean("flush", optimizeRequest.flush()));
      optimizeRequest.refresh(request.paramAsBoolean("refresh", optimizeRequest.refresh()));

      BroadcastOperationThreading operationThreading =
          BroadcastOperationThreading.fromString(
              request.param("operation_threading"), BroadcastOperationThreading.SINGLE_THREAD);
      if (operationThreading == BroadcastOperationThreading.NO_THREADS) {
        // since we don't spawn, don't allow no_threads, but change it to a single thread
        operationThreading = BroadcastOperationThreading.THREAD_PER_SHARD;
      }
      optimizeRequest.operationThreading(operationThreading);
    } catch (Exception e) {
      try {
        XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
        channel.sendResponse(
            new XContentRestResponse(
                request,
                BAD_REQUEST,
                builder.startObject().field("error", e.getMessage()).endObject()));
      } catch (IOException e1) {
        logger.error("Failed to send failure response", e1);
      }
      return;
    }
    client
        .admin()
        .indices()
        .optimize(
            optimizeRequest,
            new ActionListener<OptimizeResponse>() {
              @Override
              public void onResponse(OptimizeResponse response) {
                try {
                  XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
                  builder.startObject();
                  builder.field("ok", true);

                  buildBroadcastShardsHeader(builder, response);

                  builder.endObject();
                  channel.sendResponse(new XContentRestResponse(request, OK, builder));
                } catch (Throwable e) {
                  onFailure(e);
                }
              }

              @Override
              public void onFailure(Throwable e) {
                try {
                  channel.sendResponse(new XContentThrowableRestResponse(request, e));
                } catch (IOException e1) {
                  logger.error("Failed to send failure response", e1);
                }
              }
            });
  }