@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
String[] nodesIds = Strings.splitStringByCommaToArray(request.param("nodeId"));
Set<String> metrics = Strings.splitStringByCommaToSet(request.param("metric", "_all"));
NodesStatsRequest nodesStatsRequest = new NodesStatsRequest(nodesIds);
nodesStatsRequest.listenerThreaded(false);
if (metrics.size() == 1 && metrics.contains("_all")) {
nodesStatsRequest.all();
nodesStatsRequest.indices(CommonStatsFlags.ALL);
} else {
nodesStatsRequest.clear();
nodesStatsRequest.os(metrics.contains("os"));
nodesStatsRequest.jvm(metrics.contains("jvm"));
nodesStatsRequest.threadPool(metrics.contains("thread_pool"));
nodesStatsRequest.network(metrics.contains("network"));
nodesStatsRequest.fs(metrics.contains("fs"));
nodesStatsRequest.transport(metrics.contains("transport"));
nodesStatsRequest.http(metrics.contains("http"));
nodesStatsRequest.indices(metrics.contains("indices"));
nodesStatsRequest.process(metrics.contains("process"));
nodesStatsRequest.breaker(metrics.contains("breaker"));
// check for index specific metrics
if (metrics.contains("indices")) {
Set<String> indexMetrics =
Strings.splitStringByCommaToSet(request.param("indexMetric", "_all"));
if (indexMetrics.size() == 1 && indexMetrics.contains("_all")) {
nodesStatsRequest.indices(CommonStatsFlags.ALL);
} else {
CommonStatsFlags flags = new CommonStatsFlags();
for (Flag flag : CommonStatsFlags.Flag.values()) {
flags.set(flag, indexMetrics.contains(flag.getRestName()));
}
nodesStatsRequest.indices(flags);
}
}
}
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));
}
client
.admin()
.cluster()
.nodesStats(
nodesStatsRequest,
new ActionListener<NodesStatsResponse>() {
@Override
public void onResponse(NodesStatsResponse response) {
try {
XContentBuilder builder = RestXContentBuilder.restContentBuilder(request);
builder.startObject();
response.toXContent(builder, request);
builder.endObject();
channel.sendResponse(new BytesRestResponse(RestStatus.OK, builder));
} catch (Throwable e) {
onFailure(e);
}
}
@Override
public void onFailure(Throwable e) {
try {
channel.sendResponse(new BytesRestResponse(request, e));
} catch (IOException e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
@Test
public void testEncodeDecodeCommonStats() throws IOException {
CommonStatsFlags flags = new CommonStatsFlags();
Flag[] values = CommonStatsFlags.Flag.values();
assertThat(flags.anySet(), equalTo(true));
for (Flag flag : values) {
flags.set(flag, false);
}
assertThat(flags.anySet(), equalTo(false));
for (Flag flag : values) {
flags.set(flag, true);
}
assertThat(flags.anySet(), equalTo(true));
Random random = getRandom();
flags.set(values[random.nextInt(values.length)], false);
assertThat(flags.anySet(), equalTo(true));
{
BytesStreamOutput out = new BytesStreamOutput();
flags.writeTo(out);
out.close();
BytesReference bytes = out.bytes();
CommonStatsFlags readStats =
CommonStatsFlags.readCommonStatsFlags(new BytesStreamInput(bytes));
for (Flag flag : values) {
assertThat(flags.isSet(flag), equalTo(readStats.isSet(flag)));
}
}
{
for (Flag flag : values) {
flags.set(flag, random.nextBoolean());
}
BytesStreamOutput out = new BytesStreamOutput();
flags.writeTo(out);
out.close();
BytesReference bytes = out.bytes();
CommonStatsFlags readStats =
CommonStatsFlags.readCommonStatsFlags(new BytesStreamInput(bytes));
for (Flag flag : values) {
assertThat(flags.isSet(flag), equalTo(readStats.isSet(flag)));
}
}
}