b7878fb975
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@823799 13f79535-47bb-0310-9956-ffa450edef68
114 lines
3.8 KiB
Java
114 lines
3.8 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package sample;
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import java.io.IOException;
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import java.net.URL;
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import java.util.Date;
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import java.util.Stack;
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import org.oasisopen.sca.annotation.EagerInit;
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import org.oasisopen.sca.annotation.Init;
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import org.oasisopen.sca.annotation.Reference;
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import org.oasisopen.sca.annotation.Scope;
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import org.oasisopen.sca.annotation.Service;
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import com.google.appengine.api.datastore.DatastoreService;
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import com.google.appengine.api.datastore.Entity;
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import com.google.appengine.api.datastore.EntityNotFoundException;
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import com.google.appengine.api.datastore.Key;
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import com.google.appengine.api.datastore.KeyFactory;
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import com.google.appengine.api.datastore.Transaction;
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import com.google.appengine.api.memcache.MemcacheService;
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import com.google.appengine.api.urlfetch.HTTPResponse;
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import com.google.appengine.api.urlfetch.URLFetchService;
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import com.google.appengine.api.users.User;
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import com.google.appengine.api.users.UserService;
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@EagerInit
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@Scope("COMPOSITE")
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@Service(HelloworldService.class)
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public class HelloworldServiceImpl implements HelloworldService {
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@Reference
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protected UserService userService;
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@Reference
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protected URLFetchService fetchService;
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@Reference
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protected MemcacheService memcacheService;
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@Reference
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protected DatastoreService datastoreService;
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public String sayHello(String name) {
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User user = userService.getCurrentUser();
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String id = (user == null) ? "" : user.getUserId();
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Stack<String> stack = (Stack<String>)memcacheService.get("history");
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if (stack == null) {
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stack = new Stack<String>();
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}
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stack.push(new Date().toString() + ": " + name);
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memcacheService.put("history", stack);
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Transaction tx = datastoreService.beginTransaction();
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Entity entity = null;
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Key key = KeyFactory.createKey("HitCounter", "countter");
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try {
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entity = datastoreService.get(tx, key);
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} catch (EntityNotFoundException e1) {
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entity = new Entity(key);
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entity.setProperty("counter", new Long(0));
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}
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Long count = (Long)entity.getProperty("counter");
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entity.setProperty("counter", new Long(count.longValue() + 1));
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datastoreService.put(tx, entity);
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tx.commit();
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String content = "";
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try {
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HTTPResponse response = fetchService.fetch(new URL("http://tuscany.apache.org"));
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content = new String(response.getContent(), 0, 1024);
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content = content.replace("<", "<");
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content = content.replace(">", ">");
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content = content.replace("\"", """);
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} catch (IOException e) {
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e.printStackTrace();
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}
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return "[" + id
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+ "] Hello "
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+ name
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+ "<hr><h1>Content from Tuscany Web Site</h1><p>"
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+ content
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+ "<p>History<hr>"
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+ stack
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+ "</p><b>"
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+ count
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+ "</b>";
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}
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@Init
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public void init() {
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System.out.println("Starting...");
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}
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}
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