Added test for infinite recursion mapping.

src/test/java/org/springframework/data/elasticsearch/SampleRecursiveMappingEntity.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2013 the original author or authors.
+ *
+ * Licensed 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.springframework.data.elasticsearch;
+
+import org.springframework.data.annotation.Id;
+import org.springframework.data.elasticsearch.annotations.Document;
+import org.springframework.data.elasticsearch.annotations.Field;
+
+import static org.springframework.data.elasticsearch.annotations.FieldIndex.not_analyzed;
+import static org.springframework.data.elasticsearch.annotations.FieldType.String;
+
+/**
+ * @author Jakub Vavrik
+ */
+@Document(indexName = "test-recursive-mapping", type = "mapping", indexStoreType = "memory", shards = 1, replicas = 0, refreshInterval = "-1")
+public class SampleRecursiveMappingEntity {
+
+    @Id
+    private String id;
+
+    @Field(type = String, index = not_analyzed, store = true, searchAnalyzer = "standard", indexAnalyzer = "standard")
+    private String message;
+
+    @Field
+    private NestedEntity nested;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    static class NestedEntity {
+        @Field
+        private static NestedEntity someField = new NestedEntity();
+        @Field
+        private Boolean something;
+
+        public NestedEntity getSomeField() {
+            return someField;
+        }
+
+        public void setSomeField(NestedEntity someField) {
+            this.someField = someField;
+        }
+
+        public Boolean getSomething() { return something; }
+
+        public void setSomething(Boolean something) { this.something = something; }
+    }
+
+}

src/test/java/org/springframework/data/elasticsearch/core/SimpleRecursiveMappingTest.java

@@ -0,0 +1,25 @@
+package org.springframework.data.elasticsearch.core;
+
+import junit.framework.Assert;
+import org.elasticsearch.common.xcontent.XContentBuilder;
+import org.junit.Test;
+import org.springframework.data.elasticsearch.SampleRecursiveMappingEntity;
+
+import java.io.IOException;
+
+/**
+ * Test that classes that have fields of same type do not end in infinite loop when mapping.
+ */
+public class SimpleRecursiveMappingTest {
+
+    private static final String EXPECTED = "{\"mapping\":{\"properties\":{\"message\":{\"store\":true,\"" +
+            "type\":\"string\",\"index\":\"not_analyzed\",\"search_analyzer\":\"standard\"," +
+            "\"index_analyzer\":\"standard\"},\"nested\":{\"type\":\"object\",\"properties\":{\"" +
+            "something\":{\"store\":false}}},\"nested\":{\"store\":false}}}}";
+
+    @Test
+    public void testInfiniteLoopAvoidance() throws IOException {
+        XContentBuilder xContentBuilder = MappingBuilder.buildMapping(SampleRecursiveMappingEntity.class, "mapping", "id");
+        Assert.assertEquals(EXPECTED, xContentBuilder.string());
+    }
+}