#159: Add node-meta param to /catalog/nodes request

Author: vgv

src/main/java/com/ecwid/consul/v1/ConsulClient.java

@@ -367,6 +367,11 @@ public Response<List<Node>> getCatalogNodes(QueryParams queryParams) {
 		return catalogClient.getCatalogNodes(queryParams);
 	}
 
+	@Override
+	public Response<List<Node>> getCatalogNodes(Map<String, String> nodeMeta, QueryParams queryParams) {
+		return catalogClient.getCatalogNodes(nodeMeta, queryParams);
+	}
+
 	@Override
 	public Response<Map<String, List<String>>> getCatalogServices(QueryParams queryParams) {
 		return catalogClient.getCatalogServices(queryParams);

src/main/java/com/ecwid/consul/v1/NodeMetaParameters.java

@@ -0,0 +1,32 @@
+package com.ecwid.consul.v1;
+
+import com.ecwid.consul.UrlParameters;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class NodeMetaParameters implements UrlParameters {
+
+    private final Map<String, String> nodeMeta;
+
+    public NodeMetaParameters(Map<String, String> nodeMeta) {
+        this.nodeMeta = nodeMeta;
+    }
+
+    @Override
+    public List<String> toUrlParameters() {
+        List<String> params = new ArrayList<>();
+
+        if (nodeMeta != null) {
+            String key = "node-meta";
+
+            for (Map.Entry<String, String> entry : nodeMeta.entrySet()) {
+                String value = entry.getKey() + ":" + entry.getValue();
+                params.add(key + "=" + value);
+            }
+        }
+
+        return params;
+    }
+}

src/main/java/com/ecwid/consul/v1/catalog/CatalogClient.java

@@ -27,6 +27,8 @@ public interface CatalogClient {
 
 	public Response<List<Node>> getCatalogNodes(QueryParams queryParams);
 
+	public Response<List<Node>> getCatalogNodes(Map<String, String> nodeMeta, QueryParams queryParams);
+
 	public Response<Map<String, List<String>>> getCatalogServices(QueryParams queryParams);
 
 	public Response<Map<String, List<String>>> getCatalogServices(QueryParams queryParams, String token);

src/main/java/com/ecwid/consul/v1/catalog/CatalogConsulClient.java

@@ -8,10 +8,7 @@
 import com.ecwid.consul.json.GsonFactory;
 import com.ecwid.consul.transport.RawResponse;
 import com.ecwid.consul.transport.TLSConfig;
-import com.ecwid.consul.v1.ConsulRawClient;
-import com.ecwid.consul.v1.OperationException;
-import com.ecwid.consul.v1.QueryParams;
-import com.ecwid.consul.v1.Response;
+import com.ecwid.consul.v1.*;
 import com.ecwid.consul.v1.catalog.model.CatalogDeregistration;
 import com.ecwid.consul.v1.catalog.model.CatalogNode;
 import com.ecwid.consul.v1.catalog.model.CatalogRegistration;
@@ -104,7 +101,13 @@ public Response<List<String>> getCatalogDatacenters() {
 
 	@Override
 	public Response<List<Node>> getCatalogNodes(QueryParams queryParams) {
-		RawResponse rawResponse = rawClient.makeGetRequest("/v1/catalog/nodes", queryParams);
+		return getCatalogNodes(null, queryParams);
+	}
+
+	@Override
+	public Response<List<Node>> getCatalogNodes(Map<String, String> nodeMeta, QueryParams queryParams) {
+		UrlParameters nodeMetaParam = new NodeMetaParameters(nodeMeta);
+		RawResponse rawResponse = rawClient.makeGetRequest("/v1/catalog/nodes", queryParams, nodeMetaParam);
 
 		if (rawResponse.getStatusCode() == 200) {
 			List<Node> value = GsonFactory.getGson().fromJson(rawResponse.getContent(), new TypeToken<List<Node>>() {