Synnefo » Pithos Web Client

/*

 * Copyright 2011-2013 GRNET S.A. All rights reserved.

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 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

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 *

 *   1. Redistributions of source code must retain the above

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 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

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 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

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package gr.grnet.pithos.web.client.rest;

import gr.grnet.pithos.web.client.Helpers;

import gr.grnet.pithos.web.client.Pithos;

import gr.grnet.pithos.web.client.Resource;

import java.util.HashMap;

import java.util.Map;

import com.google.gwt.core.client.GWT;

import com.google.gwt.core.client.Scheduler.ScheduledCommand;

import com.google.gwt.http.client.Request;

import com.google.gwt.http.client.RequestBuilder;

import com.google.gwt.http.client.RequestException;

import com.google.gwt.http.client.Response;

public abstract class PostRequest implements ScheduledCommand {

    private String api;

    protected String owner;

    private String path;

    String data = "";

    private Map<String, String> headers = new HashMap<String, String>();

    public abstract void onSuccess(Resource result);

    public abstract void onError(Throwable t);

    public PostRequest(String api, String owner, String path) {

        this.api = api;

        this.owner = owner;

        this.path = path;

    }

    public PostRequest(String api, String owner, String path, String data) {

        this.api = api;

        this.owner = owner;

        this.path = path;

        this.data = data;

    }

    @Override

    public void execute() {

        Pithos.LOG("POST ", api + owner + path);

        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, api + owner + path);

        Helpers.setHeaders(builder, headers);

        try {

            builder.sendRequest(data, new RestRequestCallback<Resource>(api + owner + path, Response.SC_ACCEPTED) {

                @Override

                public void onSuccess(Resource object) {

                    PostRequest.this.onSuccess(object);

                }

                @Override

                public Resource deserialize(Response response) {

                    return Resource.createFromResponse(Resource.class, owner, response, null);

                }

                @Override

                public void onError(Request request, Throwable throwable) {

                    PostRequest.this.onError(throwable);

                }

                                @Override

                                public void onUnauthorized(Response response) {

                                        PostRequest.this.onUnauthorized(response);

                                }

            });

        }

        catch (RequestException e) {

                Pithos.LOG(e);

        }

    }

    protected abstract void onUnauthorized(Response response);

        public void setHeader(String header, String value) {

        headers.put(header, value);

    }

}