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/*
 * Copyright 2003, 2004  The Apache Software Foundation
 * 
 * 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 javax.xml.bind.util;


import java.util.ArrayList;
import java.util.List;

import javax.xml.bind.ValidationEvent;
import javax.xml.bind.ValidationEventHandler;


/** Simple implementation of a {@link javax.xml.bind.ValidationEventHandler},
 * which simply collects all the events, regardless whether they
 * are warnings, errors, or fatal errors. You may retrieve these events
 * at a later time using {@link #getEvents()}.
 *
 * @author JSR-31
 * @since JAXB1.0
 */
public class ValidationEventCollector implements ValidationEventHandler {
  private List events = new ArrayList();

  /** Creates a new instance of ValidationEventCollector.
   */
  public ValidationEventCollector() {
  }

  /** Returns the events collected so far. Empty array, if no
   * events have been found.
   */
  public ValidationEvent[] getEvents() {
    return (ValidationEvent[]) events.toArray(new ValidationEvent[events.size()]);
  }

  /** Clears the list of collected warnings, errors, and fatal errors.
   */
  public void reset() {
    events.clear();
  }

  /** Returns whether any event has been collected.
   */
  public boolean hasEvents() {
    return !events.isEmpty();
  }

  /** Will always return true.
   */
  public boolean handleEvent(ValidationEvent pEvent) {
    events.add(pEvent);
    return true;
  }
}