Examples with NodesResponseRestListener org.elasticsearch.rest.action.RestActions.NodesResponseRestListener used on opensource projects

Example 1 with NodesResponseRestListener

use of org.elasticsearch.rest.action.RestActions.NodesResponseRestListener in project elasticsearch by elastic.

the class RestClusterStatsAction method prepareRequest.

@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
    ClusterStatsRequest clusterStatsRequest = new ClusterStatsRequest().nodesIds(request.paramAsStringArray("nodeId", null));
    clusterStatsRequest.timeout(request.param("timeout"));
    return channel -> client.admin().cluster().clusterStats(clusterStatsRequest, new NodesResponseRestListener<>(channel));
}

Example 2 with NodesResponseRestListener

use of org.elasticsearch.rest.action.RestActions.NodesResponseRestListener in project elasticsearch by elastic.

the class RestNodesInfoAction method prepareRequest.

@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
    String[] nodeIds;
    Set<String> metrics;
    // this means one must differentiate between allowed metrics and arbitrary node ids in the same place
    if (request.hasParam("nodeId") && !request.hasParam("metrics")) {
        Set<String> metricsOrNodeIds = Strings.splitStringByCommaToSet(request.param("nodeId", "_all"));
        boolean isMetricsOnly = ALLOWED_METRICS.containsAll(metricsOrNodeIds);
        if (isMetricsOnly) {
            nodeIds = new String[] { "_all" };
            metrics = metricsOrNodeIds;
        } else {
            nodeIds = metricsOrNodeIds.toArray(new String[] {});
            metrics = Sets.newHashSet("_all");
        }
    } else {
        nodeIds = Strings.splitStringByCommaToArray(request.param("nodeId", "_all"));
        metrics = Strings.splitStringByCommaToSet(request.param("metrics", "_all"));
    }
    final NodesInfoRequest nodesInfoRequest = new NodesInfoRequest(nodeIds);
    nodesInfoRequest.timeout(request.param("timeout"));
    // shortcut, don't do checks if only all is specified
    if (metrics.size() == 1 && metrics.contains("_all")) {
        nodesInfoRequest.all();
    } else {
        nodesInfoRequest.clear();
        nodesInfoRequest.settings(metrics.contains("settings"));
        nodesInfoRequest.os(metrics.contains("os"));
        nodesInfoRequest.process(metrics.contains("process"));
        nodesInfoRequest.jvm(metrics.contains("jvm"));
        nodesInfoRequest.threadPool(metrics.contains("thread_pool"));
        nodesInfoRequest.transport(metrics.contains("transport"));
        nodesInfoRequest.http(metrics.contains("http"));
        nodesInfoRequest.plugins(metrics.contains("plugins"));
        nodesInfoRequest.ingest(metrics.contains("ingest"));
        nodesInfoRequest.indices(metrics.contains("indices"));
    }
    settingsFilter.addFilterSettingParams(request);
    return channel -> client.admin().cluster().nodesInfo(nodesInfoRequest, new NodesResponseRestListener<>(channel));
}

Example 3 with NodesResponseRestListener

use of org.elasticsearch.rest.action.RestActions.NodesResponseRestListener in project elasticsearch by elastic.

the class RestNodesStatsAction method prepareRequest.

@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
    String[] nodesIds = Strings.splitStringByCommaToArray(request.param("nodeId"));
    Set<String> metrics = Strings.splitStringByCommaToSet(request.param("metric", "_all"));
    NodesStatsRequest nodesStatsRequest = new NodesStatsRequest(nodesIds);
    nodesStatsRequest.timeout(request.param("timeout"));
    if (metrics.size() == 1 && metrics.contains("_all")) {
        if (request.hasParam("index_metric")) {
            throw new IllegalArgumentException(String.format(Locale.ROOT, "request [%s] contains index metrics [%s] but all stats requested", request.path(), request.param("index_metric")));
        }
        nodesStatsRequest.all();
        nodesStatsRequest.indices(CommonStatsFlags.ALL);
    } else if (metrics.contains("_all")) {
        throw new IllegalArgumentException(String.format(Locale.ROOT, "request [%s] contains _all and individual metrics [%s]", request.path(), request.param("metric")));
    } else {
        nodesStatsRequest.clear();
        // use a sorted set so the unrecognized parameters appear in a reliable sorted order
        final Set<String> invalidMetrics = new TreeSet<>();
        for (final String metric : metrics) {
            final Consumer<NodesStatsRequest> handler = METRICS.get(metric);
            if (handler != null) {
                handler.accept(nodesStatsRequest);
            } else {
                invalidMetrics.add(metric);
            }
        }
        if (!invalidMetrics.isEmpty()) {
            throw new IllegalArgumentException(unrecognized(request, invalidMetrics, METRICS.keySet(), "metric"));
        }
        // check for index specific metrics
        if (metrics.contains("indices")) {
            Set<String> indexMetrics = Strings.splitStringByCommaToSet(request.param("index_metric", "_all"));
            if (indexMetrics.size() == 1 && indexMetrics.contains("_all")) {
                nodesStatsRequest.indices(CommonStatsFlags.ALL);
            } else {
                CommonStatsFlags flags = new CommonStatsFlags();
                flags.clear();
                // use a sorted set so the unrecognized parameters appear in a reliable sorted order
                final Set<String> invalidIndexMetrics = new TreeSet<>();
                for (final String indexMetric : indexMetrics) {
                    final Consumer<CommonStatsFlags> handler = FLAGS.get(indexMetric);
                    if (handler != null) {
                        handler.accept(flags);
                    } else {
                        invalidIndexMetrics.add(indexMetric);
                    }
                }
                if (!invalidIndexMetrics.isEmpty()) {
                    throw new IllegalArgumentException(unrecognized(request, invalidIndexMetrics, FLAGS.keySet(), "index metric"));
                }
                nodesStatsRequest.indices(flags);
            }
        } else if (request.hasParam("index_metric")) {
            throw new IllegalArgumentException(String.format(Locale.ROOT, "request [%s] contains index metrics [%s] but indices stats not requested", request.path(), request.param("index_metric")));
        }
    }
    if (nodesStatsRequest.indices().isSet(Flag.FieldData) && (request.hasParam("fields") || request.hasParam("fielddata_fields"))) {
        nodesStatsRequest.indices().fieldDataFields(request.paramAsStringArray("fielddata_fields", request.paramAsStringArray("fields", null)));
    }
    if (nodesStatsRequest.indices().isSet(Flag.Completion) && (request.hasParam("fields") || request.hasParam("completion_fields"))) {
        nodesStatsRequest.indices().completionDataFields(request.paramAsStringArray("completion_fields", request.paramAsStringArray("fields", null)));
    }
    if (nodesStatsRequest.indices().isSet(Flag.Search) && (request.hasParam("groups"))) {
        nodesStatsRequest.indices().groups(request.paramAsStringArray("groups", null));
    }
    if (nodesStatsRequest.indices().isSet(Flag.Indexing) && (request.hasParam("types"))) {
        nodesStatsRequest.indices().types(request.paramAsStringArray("types", null));
    }
    if (nodesStatsRequest.indices().isSet(Flag.Segments)) {
        nodesStatsRequest.indices().includeSegmentFileSizes(request.paramAsBoolean("include_segment_file_sizes", false));
    }
    return channel -> client.admin().cluster().nodesStats(nodesStatsRequest, new NodesResponseRestListener<>(channel));
}