1 files changed, 66 insertions, 0 deletions
diff --git a/core/src/main/java/org/elasticsearch/action/admin/cluster/allocation/ClusterAllocationExplainRequestBuilder.java b/core/src/main/java/org/elasticsearch/action/admin/cluster/allocation/ClusterAllocationExplainRequestBuilder.java
new file mode 100644
index 0000000000..1a1950c7f1
--- /dev/null
+++ b/core/src/main/java/org/elasticsearch/action/admin/cluster/allocation/ClusterAllocationExplainRequestBuilder.java
@@ -0,0 +1,66 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.action.admin.cluster.allocation;
+
+import org.elasticsearch.action.support.IndicesOptions;
+import org.elasticsearch.action.support.master.MasterNodeOperationRequestBuilder;
+import org.elasticsearch.client.ElasticsearchClient;
+
+/**
+ * Builder for requests to explain the allocation of a shard in the cluster
+ */
+public class ClusterAllocationExplainRequestBuilder
+        extends MasterNodeOperationRequestBuilder<ClusterAllocationExplainRequest,
+                                                          ClusterAllocationExplainResponse,
+                                                          ClusterAllocationExplainRequestBuilder> {
+
+    public ClusterAllocationExplainRequestBuilder(ElasticsearchClient client, ClusterAllocationExplainAction action) {
+        super(client, action, new ClusterAllocationExplainRequest());
+    }
+
+    /** The index name to use when finding the shard to explain */
+    public ClusterAllocationExplainRequestBuilder setIndex(String index) {
+        request.setIndex(index);
+        return this;
+    }
+
+    /** The shard number to use when finding the shard to explain */
+    public ClusterAllocationExplainRequestBuilder setShard(int shard) {
+        request.setShard(shard);
+        return this;
+    }
+
+    /** Whether the primary or replica should be explained */
+    public ClusterAllocationExplainRequestBuilder setPrimary(boolean primary) {
+        request.setPrimary(primary);
+        return this;
+    }
+
+    /**
+     * Signal that the first unassigned shard should be used
+     */
+    public ClusterAllocationExplainRequestBuilder useAnyUnassignedShard() {
+        request.setIndex(null);
+        request.setShard(null);
+        request.setPrimary(null);
+        return this;
+    }
+
+}