/**
 * 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 org.apache.activemq.blob;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.InputStream;

import javax.jms.Connection;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Session;

import org.apache.activemq.ActiveMQSession;
import org.apache.activemq.BlobMessage;
import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.command.ActiveMQBlobMessage;
import org.apache.activemq.util.IOHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FilesystemBlobTest extends EmbeddedBrokerTestSupport {

   private static final Logger LOG = LoggerFactory.getLogger(FilesystemBlobTest.class);

   private Connection connection;
   private final String tmpDir = System.getProperty("user.dir") + "/target/FilesystemBlobTest";

   @Override
   public void setUp() throws Exception {
      super.setUp();
      // replace \ with / to let it work on windows too
      String fileUrl = "file:///" + tmpDir.replaceAll("\\\\", "/");
      LOG.info("Using file: " + fileUrl);
      bindAddress = "vm://localhost?jms.blobTransferPolicy.defaultUploadUrl=" + fileUrl;

      connectionFactory = createConnectionFactory();

      connection = createConnection();
      connection.start();
   }

   public void testBlobFile() throws Exception {
      // first create Message
      File file = File.createTempFile("amq-data-file-", ".dat");
      // lets write some data
      String content = "hello world " + System.currentTimeMillis();
      BufferedWriter writer = new BufferedWriter(new FileWriter(file));
      writer.append(content);
      writer.close();

      ActiveMQSession session = (ActiveMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      MessageProducer producer = session.createProducer(destination);
      MessageConsumer consumer = session.createConsumer(destination);
      BlobMessage message = session.createBlobMessage(file);

      producer.send(message);
      Thread.sleep(1000);

      // check message send
      Message msg = consumer.receive(1000);
      assertTrue(msg instanceof ActiveMQBlobMessage);

      InputStream input = ((ActiveMQBlobMessage) msg).getInputStream();
      StringBuilder b = new StringBuilder();
      int i = input.read();
      while (i != -1) {
         b.append((char) i);
         i = input.read();
      }
      input.close();
      File uploaded = new File(tmpDir, msg.getJMSMessageID().toString().replace(":", "_"));
      assertEquals(content, b.toString());
      assertTrue(uploaded.exists());
      ((ActiveMQBlobMessage) msg).deleteFile();
      assertFalse(uploaded.exists());
   }

   @Override
   protected void tearDown() throws Exception {
      if (connection != null) {
         connection.stop();
      }
      super.tearDown();

      IOHelper.deleteFile(new File(tmpDir));
   }
}
