/**
* 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.component.mongodb;
import com.mongodb.DBObject;
import com.mongodb.WriteResult;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.junit.Test;
public class MongoDbHeaderHandlingTest extends AbstractMongoDbTest {
@Test
public void testInHeadersTransferredToOutOnCount() {
// a read operation
assertEquals(0, testCollection.count());
Exchange result = template.request("direct:count", new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody("irrelevant body");
exchange.getIn().setHeader("abc", "def");
}
});
assertTrue("Result is not of type Long", result.getOut().getBody() instanceof Long);
assertEquals("Test collection should not contain any records", 0L, result.getOut().getBody());
assertEquals("An input header was not returned", "def", result.getOut().getHeader("abc"));
}
@Test
public void testInHeadersTransferredToOutOnInsert() {
Exchange result = template.request("direct:insert", new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody("{\"_id\":\"testInsertString\", \"scientist\":\"Einstein\"}");
exchange.getIn().setHeader("abc", "def");
}
});
assertTrue(result.getOut().getBody() instanceof WriteResult);
assertEquals("An input header was not returned", "def", result.getOut().getHeader("abc"));
DBObject b = testCollection.findOne("testInsertString");
assertNotNull("No record with 'testInsertString' _id", b);
}
@Test
public void testWriteResultAsHeaderWithWriteOp() {
// Prepare test
assertEquals(0, testCollection.count());
Object[] req = new Object[] {"{\"_id\":\"testSave1\", \"scientist\":\"Einstein\"}", "{\"_id\":\"testSave2\", \"scientist\":\"Copernicus\"}"};
Object result = template.requestBody("direct:insert", req);
assertTrue(result instanceof WriteResult);
assertEquals("Number of records persisted must be 2", 2, testCollection.count());
// Testing the save logic
final DBObject record1 = testCollection.findOne("testSave1");
assertEquals("Scientist field of 'testSave1' must equal 'Einstein'", "Einstein", record1.get("scientist"));
record1.put("scientist", "Darwin");
// test that as a payload, we get back exactly our input, but enriched with the CamelMongoDbWriteResult header
Exchange resultExch = template.request("direct:save", new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody(record1);
}
});
assertTrue(resultExch.getOut().getBody() instanceof DBObject);
assertTrue(resultExch.getOut().getBody().equals(record1));
assertTrue(resultExch.getOut().getHeader(MongoDbConstants.WRITERESULT) instanceof WriteResult);
DBObject record2 = testCollection.findOne("testSave1");
assertEquals("Scientist field of 'testSave1' must equal 'Darwin' after save operation", "Darwin", record2.get("scientist"));
}
@Test
public void testWriteResultAsHeaderWithReadOp() {
Exchange resultExch = template.request("direct:getDbStats", new Processor() {
@Override
public void process(Exchange exchange) throws Exception {
exchange.getIn().setBody("irrelevantBody");
exchange.getIn().setHeader("abc", "def");
}
});
assertTrue(resultExch.getOut().getBody() instanceof DBObject);
assertNull(resultExch.getOut().getHeader(MongoDbConstants.WRITERESULT));
assertEquals("def", resultExch.getOut().getHeader("abc"));
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
public void configure() {
// tested routes
from("direct:count").to("mongodb:myDb?database={{mongodb.testDb}}&collection={{mongodb.testCollection}}&operation=count&dynamicity=true");
from("direct:save").to("mongodb:myDb?database={{mongodb.testDb}}&collection={{mongodb.testCollection}}&operation=save&writeConcern=SAFE&writeResultAsHeader=true");
from("direct:getDbStats").to("mongodb:myDb?database={{mongodb.testDb}}&collection={{mongodb.testCollection}}&operation=getDbStats&writeResultAsHeader=true");
// supporting routes
from("direct:insert").to("mongodb:myDb?database={{mongodb.testDb}}&collection={{mongodb.testCollection}}&operation=insert&writeConcern=SAFE");
}
};
}
}