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* the Apache License, Version 2.0 (the "License"); you may
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* 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
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package org.elasticsearch.test.rest.yaml;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.test.ESTestCase;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;
public class ObjectPathTests extends ESTestCase {
private static XContentBuilder randomXContentBuilder() throws IOException {
XContentType xContentType = randomFrom(XContentType.values());
return XContentBuilder.builder(XContentFactory.xContent(xContentType));
}
public void testEvaluateObjectPathEscape() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.field("field2.field3", "value2");
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1.field2\\.field3");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
}
public void testEvaluateObjectPathWithDots() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.field("field2", "value2");
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1..field2");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
object = objectPath.evaluate("field1.field2.");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
object = objectPath.evaluate("field1.field2");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
}
public void testEvaluateInteger() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.field("field2", 333);
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1.field2");
assertThat(object, instanceOf(Integer.class));
assertThat(object, equalTo(333));
}
public void testEvaluateDouble() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.field("field2", 3.55);
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1.field2");
assertThat(object, instanceOf(Double.class));
assertThat(object, equalTo(3.55));
}
public void testEvaluateArray() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.array("array1", "value1", "value2");
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1.array1");
assertThat(object, instanceOf(List.class));
List list = (List) object;
assertThat(list.size(), equalTo(2));
assertThat(list.get(0), instanceOf(String.class));
assertThat(list.get(0), equalTo("value1"));
assertThat(list.get(1), instanceOf(String.class));
assertThat(list.get(1), equalTo("value2"));
object = objectPath.evaluate("field1.array1.1");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
}
@SuppressWarnings("unchecked")
public void testEvaluateArrayElementObject() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.startArray("array1");
xContentBuilder.startObject();
xContentBuilder.field("element", "value1");
xContentBuilder.endObject();
xContentBuilder.startObject();
xContentBuilder.field("element", "value2");
xContentBuilder.endObject();
xContentBuilder.endArray();
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("field1.array1.1.element");
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("value2"));
object = objectPath.evaluate("");
assertThat(object, notNullValue());
assertThat(object, instanceOf(Map.class));
assertThat(((Map<String, Object>)object).containsKey("field1"), equalTo(true));
object = objectPath.evaluate("field1.array2.1.element");
assertThat(object, nullValue());
}
@SuppressWarnings("unchecked")
public void testEvaluateObjectKeys() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("metadata");
xContentBuilder.startObject("templates");
xContentBuilder.startObject("template_1");
xContentBuilder.field("field", "value");
xContentBuilder.endObject();
xContentBuilder.startObject("template_2");
xContentBuilder.field("field", "value");
xContentBuilder.endObject();
xContentBuilder.endObject();
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
Object object = objectPath.evaluate("metadata.templates");
assertThat(object, instanceOf(Map.class));
Map<String, Object> map = (Map<String, Object>)object;
assertThat(map.size(), equalTo(2));
Set<String> strings = map.keySet();
assertThat(strings, contains("template_1", "template_2"));
}
public void testEvaluateStashInPropertyName() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startObject();
xContentBuilder.startObject("field1");
xContentBuilder.startObject("elements");
xContentBuilder.field("element1", "value1");
xContentBuilder.endObject();
xContentBuilder.endObject();
xContentBuilder.endObject();
ObjectPath objectPath = ObjectPath.createFromXContent(xContentBuilder.contentType().xContent(), xContentBuilder.bytes());
try {
objectPath.evaluate("field1.$placeholder.element1");
fail("evaluate should have failed due to unresolved placeholder");
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), containsString("stashed value not found for key [placeholder]"));
}
// Stashed value is whole property name
Stash stash = new Stash();
stash.stashValue("placeholder", "elements");
Object object = objectPath.evaluate("field1.$placeholder.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
// Stash key has dots
Map<String, Object> stashedObject = new HashMap<>();
stashedObject.put("subobject", "elements");
stash.stashValue("object", stashedObject);
object = objectPath.evaluate("field1.$object\\.subobject.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
// Stashed value is part of property name
stash.stashValue("placeholder", "ele");
object = objectPath.evaluate("field1.${placeholder}ments.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
// Stashed value is inside of property name
stash.stashValue("placeholder", "le");
object = objectPath.evaluate("field1.e${placeholder}ments.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
// Multiple stashed values in property name
stash.stashValue("placeholder", "le");
stash.stashValue("placeholder2", "nts");
object = objectPath.evaluate("field1.e${placeholder}me${placeholder2}.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
// Stashed value is part of property name and has dots
stashedObject.put("subobject", "ele");
stash.stashValue("object", stashedObject);
object = objectPath.evaluate("field1.${object\\.subobject}ments.element1", stash);
assertThat(object, notNullValue());
assertThat(object.toString(), equalTo("value1"));
}
@SuppressWarnings("unchecked")
public void testEvaluateArrayAsRoot() throws Exception {
XContentBuilder xContentBuilder = randomXContentBuilder();
xContentBuilder.startArray();
xContentBuilder.startObject();
xContentBuilder.field("alias", "test_alias1");
xContentBuilder.field("index", "test1");
xContentBuilder.endObject();
xContentBuilder.startObject();
xContentBuilder.field("alias", "test_alias2");
xContentBuilder.field("index", "test2");
xContentBuilder.endObject();
xContentBuilder.endArray();
ObjectPath objectPath = ObjectPath.createFromXContent(
XContentFactory.xContent(xContentBuilder.contentType()), xContentBuilder.bytes());
Object object = objectPath.evaluate("");
assertThat(object, notNullValue());
assertThat(object, instanceOf(List.class));
assertThat(((List<Object>)object).size(), equalTo(2));
object = objectPath.evaluate("0");
assertThat(object, notNullValue());
assertThat(object, instanceOf(Map.class));
assertThat(((Map<String, Object>)object).get("alias"), equalTo("test_alias1"));
object = objectPath.evaluate("1.index");
assertThat(object, notNullValue());
assertThat(object, instanceOf(String.class));
assertThat(object, equalTo("test2"));
}
}