/**

  * Copyright 2005-2011 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.kuali.rice.ksb.impl.bus;

 import org.apache.commons.codec.binary.Base64;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceRuntimeException;

 import org.kuali.rice.core.api.util.ChecksumUtils;

 import org.kuali.rice.core.api.util.RiceUtilities;

 import org.kuali.rice.ksb.api.bus.Endpoint;

 import org.kuali.rice.ksb.api.bus.ServiceConfiguration;

 import org.kuali.rice.ksb.api.bus.ServiceDefinition;

 import org.kuali.rice.ksb.api.registry.ServiceDescriptor;

 import org.kuali.rice.ksb.api.registry.ServiceEndpoint;

 import org.kuali.rice.ksb.api.registry.ServiceEndpointStatus;

 import org.kuali.rice.ksb.api.registry.ServiceInfo;

 import javax.xml.namespace.QName;

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import java.io.ObjectOutput;

 import java.io.ObjectOutputStream;

 import java.io.UnsupportedEncodingException;

 import java.security.GeneralSecurityException;

 import java.security.MessageDigest;

 public final class LocalService {

         private final ServiceDefinition serviceDefinition;

         private final Endpoint endpoint;

         private final ServiceEndpoint serviceEndpoint;

         LocalService(String instanceId, ServiceDefinition serviceDefinition) {

                 this(instanceId, serviceDefinition, null);

         }

         LocalService(String instanceId, ServiceDefinition serviceDefinition, ServiceEndpoint serviceEndpoint) {

                 if (StringUtils.isBlank(instanceId)) {

                         throw new IllegalArgumentException("instanceId was blank or null");

                 }

                 if (serviceDefinition == null) {

                         throw new IllegalArgumentException("serviceDefinition was null");

                 }

                 this.serviceDefinition = serviceDefinition;

                 this.endpoint = serviceDefinition.establishEndpoint();

                 if (serviceEndpoint != null) {

                         this.serviceEndpoint = serviceEndpoint;

                 } else {

                         this.serviceEndpoint = constructServiceEndpoint(instanceId, this.endpoint);

                 }

         }

         LocalService(LocalService currentLocalService, ServiceEndpoint newServiceEndpoint) {

                 this(newServiceEndpoint.getInfo().getInstanceId(), currentLocalService.getServiceDefinition(), newServiceEndpoint);

         }

         public QName getServiceName() {

                 return endpoint.getServiceConfiguration().getServiceName();

         }

         public ServiceDefinition getServiceDefinition() {

                 return serviceDefinition;

         }

         public Endpoint getEndpoint() {

                 return endpoint;

         }

         public ServiceEndpoint getServiceEndpoint() {

                 return this.serviceEndpoint;

         }

         static ServiceEndpoint constructServiceEndpoint(String instanceId, Endpoint endpoint) {

                 ServiceInfo.Builder serviceInfo = constructServiceInfo(instanceId, endpoint.getServiceConfiguration());

                 ServiceDescriptor.Builder serviceDescriptor = constructDescriptor(endpoint.getServiceConfiguration());

                 ServiceEndpoint.Builder builder = ServiceEndpoint.Builder.create(serviceInfo, serviceDescriptor);

                 return builder.build();

         }

         static ServiceInfo.Builder constructServiceInfo(String instanceId, ServiceConfiguration serviceConfiguration) {

                 ServiceInfo.Builder builder = ServiceInfo.Builder.create();

                 builder.setInstanceId(instanceId);

                 builder.setApplicationId(serviceConfiguration.getApplicationId());

                 builder.setChecksum(ChecksumUtils.calculateChecksum(serviceConfiguration));

                 builder.setEndpointUrl(serviceConfiguration.getEndpointUrl().toExternalForm());

                 builder.setServerIpAddress(RiceUtilities.getIpNumber());

                 builder.setServiceName(serviceConfiguration.getServiceName());

                 builder.setServiceVersion(serviceConfiguration.getServiceVersion());

                 builder.setStatus(ServiceEndpointStatus.ONLINE);

                 builder.setType(serviceConfiguration.getType());

                 return builder;

         }

         static ServiceDescriptor.Builder constructDescriptor(ServiceConfiguration serviceConfiguration) {

                 ServiceDescriptor.Builder builder = ServiceDescriptor.Builder.create();

                 builder.setDescriptor(ServiceConfigurationSerializationHandler.marshallToXml(serviceConfiguration));

                 return builder;

         }

 }