/*
* Copyright © 2014 Cask Data, Inc.
*
* Licensed 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 co.cask.cdap.test.app;
import co.cask.cdap.api.annotation.UseDataSet;
import co.cask.cdap.api.app.AbstractApplication;
import co.cask.cdap.api.data.stream.Stream;
import co.cask.cdap.api.dataset.lib.KeyValueTable;
import co.cask.cdap.api.metrics.Metrics;
import co.cask.cdap.api.service.AbstractService;
import co.cask.cdap.api.service.http.AbstractHttpServiceHandler;
import co.cask.cdap.api.service.http.HttpServiceRequest;
import co.cask.cdap.api.service.http.HttpServiceResponder;
import com.google.common.base.Charsets;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
/**
*
*/
public class DummyApp extends AbstractApplication {
@Override
public void configure() {
setName("DummyApp");
setDescription("DummyApp");
addStream(new Stream("who"));
createDataset("whom", KeyValueTable.class);
addService(new Greeting());
}
/**
* A {@link co.cask.cdap.api.service.Service} that creates a greeting using a user's name.
*/
public static final class Greeting extends AbstractService {
public static final String SERVICE_NAME = "Greeting";
@Override
protected void configure() {
setName(SERVICE_NAME);
setDescription("Service that creates a greeting using a user's name.");
addHandler(new GreetingHandler());
}
}
/**
* Greeting Service handler.
*/
public static final class GreetingHandler extends AbstractHttpServiceHandler {
@UseDataSet("whom")
private KeyValueTable whom;
private Metrics metrics;
@Path("greet")
@GET
public void greet(HttpServiceRequest request, HttpServiceResponder responder) {
byte[] name = whom.read("");
String toGreet = name != null ? new String(name, Charsets.UTF_8) : "World";
if (toGreet.equals("Jane Doe")) {
metrics.count("greetings.count.jane_doe", 1);
}
responder.sendString(String.format("Hello %s!", toGreet));
}
}
}