Java tutorial
/************************************************************************* * Copyright 2009-2012 Eucalyptus Systems, Inc. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/. * * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need * additional information or have any questions. * * This file may incorporate work covered under the following copyright * and permission notice: * * Software License Agreement (BSD License) * * Copyright (c) 2008, Regents of the University of California * All rights reserved. * * Redistribution and use of this software in source and binary forms, * with or without modification, are permitted provided that the * following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "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 THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE * THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL, * COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE, * AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING * IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, * SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, * WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION, * REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO * IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT * NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS. ************************************************************************/ package edu.ucsb.eucalyptus.ic; import edu.ucsb.eucalyptus.cloud.*; import edu.ucsb.eucalyptus.msgs.BaseMessage; import edu.ucsb.eucalyptus.msgs.EucalyptusErrorMessageType; import edu.ucsb.eucalyptus.msgs.EucalyptusMessage; import edu.ucsb.eucalyptus.msgs.StorageErrorMessageType; import edu.ucsb.eucalyptus.util.ReplyCoordinator; import org.apache.commons.httpclient.HttpStatus; import org.apache.log4j.Logger; import org.mule.message.ExceptionMessage; import com.eucalyptus.binding.BindingManager; public class StorageReplyQueue { private static Logger LOG = Logger.getLogger(StorageReplyQueue.class); private static ReplyCoordinator replies = new ReplyCoordinator(3600000); public void handle(EucalyptusMessage msg) { Logger.getLogger(StorageReplyQueue.class).warn("storage queueing reply to " + msg.getCorrelationId()); replies.putMessage(msg); } public void handle(ExceptionMessage muleMsg) { try { Object requestMsg = muleMsg.getPayload(); String requestString = requestMsg.toString(); BaseMessage msg = (BaseMessage) BindingManager.getBinding("msgs_eucalyptus_com").fromOM(requestString); Throwable ex = muleMsg.getException().getCause(); StorageErrorMessageType errMsg = null; if (ex instanceof NoSuchVolumeException) { errMsg = new StorageErrorMessageType("NoSuchVolume", "Volume not found", HttpStatus.SC_NOT_FOUND, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else if (ex instanceof VolumeInUseException) { errMsg = new StorageErrorMessageType("VolumeInUse", "Volume in use", HttpStatus.SC_FORBIDDEN, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else if (ex instanceof NoSuchSnapshotException) { errMsg = new StorageErrorMessageType("NoSuchSnapshot", "Snapshot not found", HttpStatus.SC_NOT_FOUND, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else if (ex instanceof VolumeAlreadyExistsException) { errMsg = new StorageErrorMessageType("VolumeAlreadyExists", "Volume already exists", HttpStatus.SC_CONFLICT, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else if (ex instanceof VolumeNotReadyException) { errMsg = new StorageErrorMessageType("VolumeNotReady", "Volume not ready yet", HttpStatus.SC_CONFLICT, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else if (ex instanceof SnapshotInUseException) { errMsg = new StorageErrorMessageType("SnapshotInUse", "Snapshot in use", HttpStatus.SC_CONFLICT, msg.getCorrelationId()); errMsg.setCorrelationId(msg.getCorrelationId()); } else { replies.putMessage( new EucalyptusErrorMessageType(muleMsg.getComponentName(), msg, ex.getMessage())); } if (errMsg != null) { replies.putMessage(errMsg); } } catch (Exception e) { LOG.error(e); } } public static BaseMessage getReply(String msgId) { Logger.getLogger(StorageReplyQueue.class).warn("storage request for reply to " + msgId); BaseMessage msg = replies.getMessage(msgId); Logger.getLogger(StorageReplyQueue.class).warn("storage obtained reply to " + msgId); return msg; } }