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>JBoss Application Server: Restcomm Sip Servlets Adaptation Layer
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/*
 * TeleStax, Open Source Cloud Communications
 * Copyright 2011-2015, Telestax Inc and individual contributors
 * by the @authors tag.
 *
 * This program is free software: you can redistribute it and/or modify
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see 
 */
package org.mobicents.as10.deployment;

import org.jboss.as.ee.component.Attachments;
import org.jboss.as.ee.component.BindingConfiguration;
import org.jboss.as.ee.component.EEModuleDescription;
import org.jboss.as.ee.component.deployers.EEResourceReferenceProcessorRegistry;
import org.jboss.as.server.deployment.AttachmentList;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnit;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.as.server.deployment.DeploymentUnitProcessor;
import org.mobicents.metadata.sip.spec.SipAnnotationMetaData;
import org.mobicents.metadata.sip.spec.SipMetaData;

/**
 * @author Stuart Douglas
 * @author [email protected]
 *
 *         This class is based on the contents of org.mobicents.as7.deployment package from jboss-as7-mobicents project,
 *         re-implemented for jboss as10 (wildfly) by:
 * @author [email protected]
 */
public class SipJndiBindingProcessor implements DeploymentUnitProcessor {

    static final String[] JNDI_BASE_FOR_SIP = { "java:comp/env/", "java:app/" };
    static final String SIP_PREFIX_JNDI = "sip/";
    static final String SIP_FACTORY_JNDI = "SipFactory";
    static final String SIP_SESSIONS_UTIL_JNDI = "SipSessionsUtil";
    static final String SIP_TIMER_SERVICE_JNDI = "TimerService";

    @Override
    public void deploy(final DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {

        final DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
        final DeploymentUnit parentDU = deploymentUnit.getParent();

        // look for the sip application name to properly build the jndi name
        String sipApplicationName = null;
        SipMetaData sipMetaData = deploymentUnit.getAttachment(SipMetaData.ATTACHMENT_KEY);
        SipAnnotationMetaData sipAnnotationMetaData = deploymentUnit.getAttachment(SipAnnotationMetaData.ATTACHMENT_KEY);
        if (sipMetaData != null) {
            sipApplicationName = sipMetaData.getApplicationName();
        } else if (sipAnnotationMetaData != null && sipAnnotationMetaData.isSipApplicationAnnotationPresent()) {
            // FIXME: very dirty fix, this should be done in a separate function
            sipApplicationName = sipAnnotationMetaData.get("classes").getApplicationName();
        } else if (parentDU != null) {
            AttachmentList subDeploymentList = parentDU
                    .getAttachment(org.jboss.as.server.deployment.Attachments.SUB_DEPLOYMENTS);
            for (final DeploymentUnit subDeployment : subDeploymentList) {
                sipMetaData = subDeployment.getAttachment(SipMetaData.ATTACHMENT_KEY);
                sipAnnotationMetaData = deploymentUnit.getAttachment(SipAnnotationMetaData.ATTACHMENT_KEY);
                if (sipMetaData != null) {
                    sipApplicationName = sipMetaData.getApplicationName();
                    break;
                } else if (sipAnnotationMetaData != null && sipAnnotationMetaData.isSipApplicationAnnotationPresent()) {
                    // FIXME: very dirty fix, this should be done in a separate function
                    sipApplicationName = sipAnnotationMetaData.get("classes").getApplicationName();
                    break;
                }
            }
        }
        if (sipApplicationName == null) {
            // not a sip deployment
            return;
        }
        // anchorDU will have a SIPWebContext.ATTACHMENT so jndi lookups can be resolved to context resources
        final DeploymentUnit anchorDU = SIPWebContext.getSipContextAnchorDu(deploymentUnit);
        setupSipJndiBindingsPerDeploymentUnit(anchorDU, deploymentUnit, sipApplicationName);
    }

    @Override
    public void undeploy(final DeploymentUnit context) {
        // TODO: do we need to explictly remove jndi bindings?

    }

    private static void setupSipJndiBindingsPerDeploymentUnit(final DeploymentUnit anchorDU, final DeploymentUnit subDU,
            final String sipApplicationName) {
        final EEResourceReferenceProcessorRegistry registry = subDU
                .getAttachment(Attachments.RESOURCE_REFERENCE_PROCESSOR_REGISTRY);
        // Add a EEResourceReferenceProcessor which handles @Resource references with no mappedName
        registry.registerResourceReferenceProcessor(new SipFactoryResourceProcessor(anchorDU));
        registry.registerResourceReferenceProcessor(new SipSessionsUtilResourceProcessor(anchorDU));
        registry.registerResourceReferenceProcessor(new SipTimerServiceResourceProcessor(anchorDU));

        // Create binding between jndi path and injection source
        final EEModuleDescription description = subDU.getAttachment(Attachments.EE_MODULE_DESCRIPTION);
        if (description == null) {
            return;
        }
        // Add bindings proper
        for (String jndiBaseSip : JNDI_BASE_FOR_SIP) {
            final String jndiBaseMapped = jndiBaseSip + SIP_PREFIX_JNDI + sipApplicationName + "/";
            description.getBindingConfigurations().add(
                    new BindingConfiguration(jndiBaseMapped + SIP_FACTORY_JNDI, new SipFactoryInjectionSource(anchorDU)));
            description.getBindingConfigurations().add(
                    new BindingConfiguration(jndiBaseMapped + SIP_SESSIONS_UTIL_JNDI, new SipSessionsUtilInjectionSource(
                            anchorDU)));
            description.getBindingConfigurations().add(
                    new BindingConfiguration(jndiBaseMapped + SIP_TIMER_SERVICE_JNDI, new SipTimerServiceInjectionSource(
                            anchorDU)));
        }
    }
}