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* 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.search.aggregations.support;
import org.elasticsearch.search.aggregations.AggregationExecutionException;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
public class PathTests extends ESTestCase {
public void testInvalidPaths() throws Exception {
assertInvalidPath("[foo]", "brackets at the beginning of the token expression");
assertInvalidPath("foo[bar", "open brackets without closing at the token expression");
assertInvalidPath("foo[", "open bracket at the end of the token expression");
assertInvalidPath("foo[]", "empty brackets in the token expression");
assertInvalidPath("foo[bar]baz", "brackets not enclosing at the end of the token expression");
assertInvalidPath(".foo", "dot separator at the beginning of the token expression");
assertInvalidPath("foo.", "dot separator at the end of the token expression");
}
public void testValidPaths() throws Exception {
assertValidPath("foo>bar", tokens().add("foo").add("bar"));
assertValidPath("foo.bar", tokens().add("foo", "bar"));
assertValidPath("foo[bar]", tokens().add("foo", "bar"));
assertValidPath("foo[bar]>baz", tokens().add("foo", "bar").add("baz"));
assertValidPath("foo[bar]>baz[qux]", tokens().add("foo", "bar").add("baz", "qux"));
assertValidPath("foo[bar]>baz.qux", tokens().add("foo", "bar").add("baz", "qux"));
assertValidPath("foo.bar>baz.qux", tokens().add("foo.bar").add("baz", "qux"));
assertValidPath("foo.bar>baz[qux]", tokens().add("foo.bar").add("baz", "qux"));
}
private void assertInvalidPath(String path, String reason) {
try {
AggregationPath.parse(path);
fail("Expected parsing path [" + path + "] to fail - " + reason);
} catch (AggregationExecutionException aee) {
// expected
}
}
private void assertValidPath(String path, Tokens tokenz) {
AggregationPath.PathElement[] tokens = tokenz.toArray();
AggregationPath p = AggregationPath.parse(path);
assertThat(p.getPathElements().size(), equalTo(tokens.length));
for (int i = 0; i < p.getPathElements().size(); i++) {
AggregationPath.PathElement t1 = p.getPathElements().get(i);
AggregationPath.PathElement t2 = tokens[i];
assertThat(t1, equalTo(t2));
}
}
private static Tokens tokens() {
return new Tokens();
}
private static class Tokens {
private List<AggregationPath.PathElement> tokens = new ArrayList<>();
Tokens add(String name) {
tokens.add(new AggregationPath.PathElement(name, name, null));
return this;
}
Tokens add(String name, String key) {
if (Math.random() > 0.5) {
tokens.add(new AggregationPath.PathElement(name + "." + key, name, key));
} else {
tokens.add(new AggregationPath.PathElement(name + "[" + key + "]", name, key));
}
return this;
}
AggregationPath.PathElement[] toArray() {
return tokens.toArray(new AggregationPath.PathElement[tokens.size()]);
}
}
}