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   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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
   *
   *    https://www.apache.org/licenses/LICENSE-2.0
   *
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  package org.apache.cayenne;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.cayenne.DataChannel;
  import org.apache.cayenne.ObjectContext;
  import org.apache.cayenne.QueryResponse;
  import org.apache.cayenne.event.EventManager;
  import org.apache.cayenne.graph.GraphDiff;
  import org.apache.cayenne.map.EntityResolver;
  import org.apache.cayenne.query.Query;
  import org.apache.cayenne.util.GenericResponse;
  
  /**
   * Stores all messages passed via this handler.
   * 
   */
  public class MockDataChannel implements DataChannel {
  
      protected EntityResolver resolver;
      protected List requestObjects = new ArrayList();
      protected GraphDiff commitResponse;
      protected QueryResponse response;
  
      public MockDataChannel() {
  
      }
  
      public MockDataChannel(GraphDiff commitResponse) {
          this.commitResponse = commitResponse;
      }
  
      public MockDataChannel(List selectResponse) {
          this.response = new GenericResponse(selectResponse);
      }
  
      public MockDataChannel(EntityResolver entityResolver, List selectResponse) {
          this(selectResponse);
          this.resolver = entityResolver;
      }
  
      public MockDataChannel(EntityResolver entityResolver, QueryResponse response) {
          this.resolver = entityResolver;
          this.response = response;
      }
  
      public MockDataChannel(EntityResolver resolver) {
          this(resolver, new GenericResponse());
      }
  
      public EventManager getEventManager() {
          return null;
      }
  
      public void reset() {
          requestObjects.clear();
      }
  
      public List getRequestObjects() {
          return requestObjects;
      }
  
      public GraphDiff onSync(ObjectContext originatingContext, GraphDiff changes, int syncType) {
          requestObjects.add(changes);
          return commitResponse;
      }
  
      public QueryResponse onQuery(ObjectContext context, Query query) {
          requestObjects.add(query);
          return response;
      }
  
      public EntityResolver getEntityResolver() {
          return resolver;
      }
      
      public void setEntityResolver(EntityResolver resolver) {
          this.resolver = resolver;
      }
  }
  