/*
 * 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.brooklyn.core.sensor.http;

import org.apache.brooklyn.api.entity.EntityLocal;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.api.sensor.AttributeSensor;
import org.apache.brooklyn.core.entity.Attributes;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.sensor.Sensors;
import org.apache.brooklyn.test.http.TestHttpRequestHandler;
import org.apache.brooklyn.test.http.TestHttpServer;
import org.apache.brooklyn.core.test.entity.TestApplication;
import org.apache.brooklyn.core.test.entity.TestEntity;
import org.apache.brooklyn.test.EntityTestUtils;
import org.apache.brooklyn.util.core.config.ConfigBag;
import org.apache.brooklyn.util.time.Duration;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import com.google.common.collect.ImmutableList;

public class HttpRequestSensorTest {
    final static AttributeSensor<String> SENSOR_STRING = Sensors.newStringSensor("aString");
    final static String TARGET_TYPE = "java.lang.String";

    private TestApplication app;
    private EntityLocal entity;

    private TestHttpServer server;
    private String serverUrl;

    @BeforeClass(alwaysRun=true)
    public void setUp() throws Exception {
        server = new TestHttpServer()
            .handler("/myKey/myValue", new TestHttpRequestHandler().header("Content-Type", "application/json").response("{\"myKey\":\"myValue\"}"))
            .start();
        serverUrl = server.getUrl();

        app = TestApplication.Factory.newManagedInstanceForTests();
        entity = app.createAndManageChild(EntitySpec.create(TestEntity.class)
                .location(app.newLocalhostProvisioningLocation().obtain()));
        app.start(ImmutableList.<Location>of());
    }

    @AfterMethod(alwaysRun=true)
    public void tearDown() throws Exception {
        if (app != null) Entities.destroyAll(app.getManagementContext());
        server.stop();
    }

    @Test
    public void testHttpSensor() throws Exception {
        HttpRequestSensor<Integer> sensor = new HttpRequestSensor<Integer>(ConfigBag.newInstance()
                .configure(HttpRequestSensor.SENSOR_PERIOD, Duration.millis(100))
                .configure(HttpRequestSensor.SENSOR_NAME, SENSOR_STRING.getName())
                .configure(HttpRequestSensor.SENSOR_TYPE, TARGET_TYPE)
                .configure(HttpRequestSensor.JSON_PATH, "$.myKey")
                .configure(HttpRequestSensor.SENSOR_URI, serverUrl + "/myKey/myValue"));
        sensor.apply(entity);
        entity.sensors().set(Attributes.SERVICE_UP, true);

        EntityTestUtils.assertAttributeEqualsEventually(entity, SENSOR_STRING, "myValue");
    }

}