/**

  * 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.krms.api.engine;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Map;

 import java.util.Map.Entry;

 import java.util.Set;

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

 import org.springframework.util.CollectionUtils;

 public class TermResolutionException extends RiceRuntimeException {

         private static final long serialVersionUID = 1L;

         public final String termResolverClassName;

         public final String outputTerm;

         public final Set<String> prereqs;

         public final Set<String> parameterNames;

         public final Map<String, String> parameters;

         private static String buildResolutionInfoString(TermResolver<?> tr, Map<String, String> parameters) {

                 StringBuilder result = new StringBuilder();

                 result.append("[");

                 result.append(TermResolver.class.getSimpleName() + "=");

                 if (tr == null) { 

                         result.append("null");

                 } else {

                         result.append(tr.toString());

                 }

                 result.append(", parameters={");

                 boolean firstEntry = true;

                 if (!CollectionUtils.isEmpty(parameters)) {

                         for (Entry<String,String> parameter : parameters.entrySet()){

                                 if (firstEntry) {

                                         firstEntry = false;

                                 } else { 

                                         result.append(",");

                                 }

                                 result.append(parameter.getKey());

                                 result.append("=");

                                 result.append(parameter.getValue());

                         }

                 }

                 result.append("}]");

                 return result.toString();

         }

         public TermResolutionException(String message, TermResolver<?> tr, Map<String, String> parameters, Throwable cause) {

                 super(message + " " + buildResolutionInfoString(tr, parameters), cause);

                 if (tr == null) {

                         termResolverClassName = "";

                         outputTerm = null;

                         prereqs = null;

                         parameterNames = null;

                 } else {

                         termResolverClassName = tr.getClass().getName();

                         outputTerm = tr.getOutput();

                         prereqs = tr.getPrerequisites();

                         parameterNames = Collections.unmodifiableSet(new HashSet<String>(tr.getParameterNames()));

                 }

                 if (parameters != null){

                         this.parameters = Collections.unmodifiableMap(new HashMap<String, String>(parameters));

                 } else {

                         this.parameters = null;

                 }

         }

         public TermResolutionException(String message, TermResolver<?> tr, Map<String, String> parameters) {

                 super(message + " " + buildResolutionInfoString(tr, parameters));

                 if (tr == null) {

                         termResolverClassName = "";

                         outputTerm = null;

                         prereqs = null;

                         parameterNames = null;

                 } else {

                         termResolverClassName = tr.getClass().getName();

                         outputTerm = tr.getOutput();

                         prereqs = tr.getPrerequisites();

                         parameterNames = Collections.unmodifiableSet(new HashSet<String>(tr.getParameterNames()));

                 }

                 if (parameters != null){

                         this.parameters = Collections.unmodifiableMap(new HashMap<String, String>(parameters));

                 } else {

                         this.parameters = null;

                 }

         }

 }