com.eucalyptus.blockstorage.StorageReplyQueue.java Source code

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/*************************************************************************
 * 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 com.eucalyptus.blockstorage;

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.util.ReplyCoordinator;

import org.apache.commons.httpclient.HttpStatus;
import org.apache.log4j.Logger;
import org.mule.message.ExceptionMessage;

import com.eucalyptus.binding.BindingManager;
import com.eucalyptus.blockstorage.msgs.StorageErrorMessageType;

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.getDefaultBinding().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;
    }
}