/*
 * 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 sample;

import java.io.IOException;
import java.net.URL;

import org.oasisopen.sca.annotation.EagerInit;
import org.oasisopen.sca.annotation.Init;
import org.oasisopen.sca.annotation.Reference;
import org.oasisopen.sca.annotation.Scope;

import com.google.appengine.api.urlfetch.HTTPResponse;
import com.google.appengine.api.urlfetch.URLFetchService;
import com.google.appengine.api.users.User;
import com.google.appengine.api.users.UserService;

@EagerInit
@Scope("COMPOSITE")
public class HelloworldServiceImpl implements HelloworldService {
    @Reference
    protected UserService userService;

    @Reference
    protected URLFetchService fetchService;

    public String sayHello(String name) {
        User user = userService.getCurrentUser();
        String id = (user == null) ? "" : user.getUserId();
        String content = "";
        try {
            HTTPResponse response = fetchService.fetch(new URL("http://tuscany.apache.org"));
            content = new String(response.getContent(), 0, 1024);
            content = content.replace("<", "&lt;");
            content = content.replace(">", "&gt;");
            content = content.replace("\"", "&quot;");
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "[" + id + "] Hello " + name + "<hr><h1>Content from Tuscany Web Site</h1><p>" + content;
    }

    @Init
    public void init() {
        System.out.println("Starting...");
    }

}