content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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.apache.camel.jsonpath;
  
  import java.io.File;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.jayway.jsonpath.Option;
  import org.apache.camel.Exchange;
  import org.apache.camel.Expression;
  import org.apache.camel.Predicate;
  import org.apache.camel.spi.Language;
  import org.apache.camel.support.DefaultExchange;
  import org.apache.camel.test.junit5.CamelTestSupport;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class JsonPathLanguageTest extends CamelTestSupport {
  
      private static final Logger LOG = LoggerFactory.getLogger(JsonPathLanguageTest.class);
  
      @Override
      public boolean isUseRouteBuilder() {
          return false;
      }
  
      @Test
      public void testExpressionArray() {
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/books.json"));
  
          Language lan = context.resolveLanguage("jsonpath");
          Expression exp = lan.createExpression("$.store.book[*].author");
          List<?> authors = exp.evaluate(exchange, List.class);
          LOG.debug("Authors {}", authors);
  
          assertNotNull(authors);
          assertEquals(3, authors.size());
          assertEquals("Nigel Rees", authors.get(0));
          assertEquals("Evelyn Waugh", authors.get(1));
          assertEquals("John O'Niel", authors.get(2));
  
          exp = lan.createExpression("$.store.bicycle.price");
          String price = exp.evaluate(exchange, String.class);
          assertEquals("19.95", price, "Got a wrong result");
      }
  
      @Test
      public void testExpressionField() {
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/type.json"));
  
          Language lan = context.resolveLanguage("jsonpath");
          Expression exp = lan.createExpression("$.kind");
          String kind = exp.evaluate(exchange, String.class);
  
          assertNotNull(kind);
          assertEquals("full", kind);
  
          exp = lan.createExpression("$.type");
          String type = exp.evaluate(exchange, String.class);
          assertNotNull(type);
          assertEquals("customer", type);
      }
  
      @Test
      public void testExpressionPojo() {
          Exchange exchange = new DefaultExchange(context);
          Map pojo = new HashMap();
          pojo.put("kind", "full");
          pojo.put("type", "customer");
          exchange.getIn().setBody(pojo);
  
          Language lan = context.resolveLanguage("jsonpath");
          Expression exp = lan.createExpression("$.kind");
          String kind = exp.evaluate(exchange, String.class);
  
          assertNotNull(kind);
          assertEquals("full", kind);
  
          exp = lan.createExpression("$.type");
          String type = exp.evaluate(exchange, String.class);
          assertNotNull(type);
          assertEquals("customer", type);
      }
  
      @Test
      public void testPredicate() {
          // Test books.json file
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/books.json"));
  
          Language lan = context.resolveLanguage("jsonpath");
          Predicate pre = lan.createPredicate("$.store.book[?(@.price < 10)]");
          boolean cheap = pre.matches(exchange);
          assertTrue(cheap, "Should have cheap books");
  
          pre = lan.createPredicate("$.store.book[?(@.price > 30)]");
          boolean expensive = pre.matches(exchange);
          assertFalse(expensive, "Should not have expensive books");
      }
  
      @Test
      public void testSuppressException() {
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/type.json"));
  
          JsonPathLanguage lan = (JsonPathLanguage) context.resolveLanguage("jsonpath");
  
          Expression exp = lan.createExpression("$.foo",
                  new Object[] { null, null, null, null, null, null, null, Option.SUPPRESS_EXCEPTIONS });
          String nofoo = exp.evaluate(exchange, String.class);
  
          assertNull(nofoo);
      }
  
      @Test
      public void testUnpackJsonArray() {
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/expensive.json"));
  
          JsonPathLanguage language = (JsonPathLanguage) context.resolveLanguage("jsonpath");
  
          Expression expression = language.createExpression("$.store.book",
                  new Object[] { null, null, null, null, null, null, true, true });
          String json = expression.evaluate(exchange, String.class);
  
          // check that a single json object is returned, not an array
          assertTrue(json.startsWith("{") && json.endsWith("}"));
      }
  
      @Test
      public void testDontUnpackJsonArray() {
          Exchange exchange = new DefaultExchange(context);
          exchange.getIn().setBody(new File("src/test/resources/books.json"));
  
          JsonPathLanguage language = (JsonPathLanguage) context.resolveLanguage("jsonpath");
  
          Expression expression = language.createExpression("$.store.book",
                  new Object[] { null, null, null, null, false, true });
          String json = expression.evaluate(exchange, String.class);
  
          // check that an array is returned, not a single object
          assertTrue(json.startsWith("[") && json.endsWith("]"));
      }
  
  }
  