org.xchain.namespaces.hibernate.DebugSessionCommand.java Source code

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Here is the source code for org.xchain.namespaces.hibernate.DebugSessionCommand.java

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/**
 *    Copyright 2011 meltmedia
 *
 *    Licensed 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.xchain.namespaces.hibernate;

import javax.xml.namespace.QName;

import org.apache.commons.jxpath.JXPathContext;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xchain.annotations.Attribute;
import org.xchain.annotations.AttributeType;
import org.xchain.annotations.Element;
import org.xchain.framework.hibernate.HibernateLifecycle;
import org.xchain.impl.ChainImpl;

/**
 * @author Josh Kennedy
 */
@Element(localName = "debug-session")
public abstract class DebugSessionCommand extends ChainImpl {
    public static Logger log = LoggerFactory.getLogger(DebugSessionCommand.class);

    public boolean execute(JXPathContext context) throws Exception {
        try {
            Session session = null;
            Transaction transaction = null;

            String message = getMessage(context);
            log.debug(message);
            // get the session from the context.
            QName name = getName(context);
            session = HibernateLifecycle.getCurrentSession(name);

            log.debug("Getting session for {}", name.toString());

            // if we didn't find the session, then bail out.
            if (session == null) {
                throw new IllegalStateException("Session not found.");
            }

            // Dump Session data to log
            logSession(session);

            transaction = session.getTransaction();

            if (transaction != null) {
                log.debug("Transaction Active: {}", transaction.isActive());
            }
        } catch (Exception e) {
            log.error("Error inspecting Session: {}", e.getMessage(), e);
        }

        return false;
    }

    private void logSession(Session session) {
        log.debug("Connected, Dirty, Open:  {}",
                new boolean[] { session.isConnected(), session.isDirty(), session.isOpen() });
        log.debug("CacheMode:  {}", session.getCacheMode().toString());
        log.debug("EntityMode: {}", session.getEntityMode().toString());
        log.debug("FlushMode:  {}", session.getFlushMode().toString());
    }

    @Attribute(localName = "name", type = AttributeType.QNAME, defaultValue = "{http://www.xchain.org/hibernate}session-factory")
    public abstract QName getName(JXPathContext context);

    @Attribute(localName = "message", type = AttributeType.ATTRIBUTE_VALUE_TEMPLATE, defaultValue = "")
    public abstract String getMessage(JXPathContext context);
}