Anexo 1 - Peticiones REST

gistfile1.java

String json = "{\"message\":\"Hola a todos\"}";

WelcomeMessage message = (WelcomeMessage)new ObjectMapper().readValues(new JsonFactory().createParser(json), WelcomeMessage.class).next();

Log.d("main", message.getMessage());

gistfile2.java

WelcomeMessage message = new WelcomeMessage();
message.setMessage(“Nuevo mensaje”);

String output = new ObjectMapper().writeValueAsString(message);

Log.d(“main”, output);

gistfile3.java

AsyncHttpClient client = new AsyncHttpClient();
client.post(this, "http://trivial.tatai.es/welcome.json", new StringEntity("{\"name\":\”Fran\"}"), "application/json", new WelcomeResponseHandler(this));

WelcomeMessage.java

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;

@JsonIgnoreProperties(ignoreUnknown = true)
public class WelcomeMessage {

	private String message = null;

	public String getMessage() {
		return this.message;
	}

	@JsonProperty("message")
	public void setMessage(String message) {
		this.message = message;
	}
}

WelcomeResponseHandler.java

import android.content.Context;
import android.util.Log;
import android.widget.Toast;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.loopj.android.http.AsyncHttpResponseHandler;

import org.apache.http.Header;

import java.io.IOException;

public class WelcomeResponseHandler extends AsyncHttpResponseHandler {

	private Context context = null;
	public WelcomeResponseHandler(Context context) {
		this.context = context;
	}

	@Override
	public void onSuccess(int i, Header[] headers, byte[] bytes) {
		WelcomeMessage message = null;
		try {
			message = new ObjectMapper().readValues(new JsonFactory().createParser(bytes), WelcomeMessage.class).next();
		} catch (IOException e) {
			e.printStackTrace();
		}
		Toast.makeText(this.context, message.getMessage(), Toast.LENGTH_LONG).show();
	}

	@Override
	public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {
		Log.d("WelcomeResponseHandler", "Request returned error " + i);
	}
}