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/*
 * The MIT License
 * Copyright (c) 2012 Microsoft Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package microsoft.exchange.webservices.data.property.complex;

import microsoft.exchange.webservices.data.core.EwsServiceXmlReader;
import microsoft.exchange.webservices.data.core.EwsServiceXmlWriter;
import microsoft.exchange.webservices.data.core.XmlAttributeNames;
import microsoft.exchange.webservices.data.core.XmlElementNames;
import microsoft.exchange.webservices.data.core.enumeration.search.SearchFolderTraversal;
import microsoft.exchange.webservices.data.core.enumeration.misc.XmlNamespace;
import microsoft.exchange.webservices.data.core.exception.service.local.ServiceValidationException;
import microsoft.exchange.webservices.data.core.exception.service.local.ServiceXmlSerializationException;
import microsoft.exchange.webservices.data.search.filter.SearchFilter;

/**
 * Represents the parameters associated with a search folder.
 */
public final class SearchFolderParameters extends ComplexProperty implements IComplexPropertyChangedDelegate {

  /**
   * The traversal.
   */
  private SearchFolderTraversal traversal;

  /**
   * The root folder ids.
   */
  private FolderIdCollection rootFolderIds = new FolderIdCollection();

  /**
   * The search filter.
   */
  private SearchFilter searchFilter;

  /**
   * Initializes a new instance of the SearchFolderParameters class.
   */
  public SearchFolderParameters() {
    super();
    this.rootFolderIds.addOnChangeEvent(this);
  }

  /**
   * Complex property changed.
   *
   * @param complexProperty the complex property
   */
  @Override
  public void complexPropertyChanged(ComplexProperty complexProperty) {
    this.propertyChanged(complexProperty);
  }

  /**
   * Property changed.
   *
   * @param complexProperty the complex property
   */
  private void propertyChanged(ComplexProperty complexProperty) {
    this.changed();
  }

  /**
   * Tries to read element from XML.
   *
   * @param reader the reader
   * @return True if element was read.
   * @throws Exception the exception
   */
  @Override
  public boolean tryReadElementFromXml(EwsServiceXmlReader reader)
      throws Exception {
    if (reader.getLocalName().equalsIgnoreCase(
        XmlElementNames.BaseFolderIds)) {
      this.rootFolderIds.internalClear();
      this.rootFolderIds.loadFromXml(reader, reader.getLocalName());
      return true;
    } else if (reader.getLocalName().equalsIgnoreCase(
        XmlElementNames.Restriction)) {
      reader.read();
      this.searchFilter = SearchFilter.loadFromXml(reader);
      return true;
    } else {
      return false;
    }
  }

  /**
   * Reads the attribute from XML.
   *
   * @param reader the reader
   * @throws Exception the exception
   */
  @Override
  public void readAttributesFromXml(EwsServiceXmlReader reader)
      throws Exception {
    this.traversal = reader.readAttributeValue(SearchFolderTraversal.class,
        XmlAttributeNames.Traversal);
  }

  /**
   * Writes the attribute to XML.
   *
   * @param writer the writer
   * @throws ServiceXmlSerializationException the service xml serialization exception
   */
  @Override
  public void writeAttributesToXml(EwsServiceXmlWriter writer)
      throws ServiceXmlSerializationException {
    writer.writeAttributeValue(XmlAttributeNames.Traversal, this.traversal);
  }

  /**
   * Writes elements to XML.
   *
   * @param writer the writer
   * @throws Exception the exception
   */
  @Override
  public void writeElementsToXml(EwsServiceXmlWriter writer)
      throws Exception {
    if (this.searchFilter != null) {
      writer.writeStartElement(XmlNamespace.Types,
          XmlElementNames.Restriction);
      this.searchFilter.writeToXml(writer);
      writer.writeEndElement(); // Restriction
    }

    this.rootFolderIds.writeToXml(writer, XmlElementNames.BaseFolderIds);
  }

  /**
   * Validates this instance.
   *
   * @throws Exception
   */
  public void validate() throws Exception {
    // Search folder must have at least one root folder id.
    if (this.rootFolderIds.getCount() == 0) {
      throw new ServiceValidationException("SearchParameters must contain at least one folder id.");
    }

    // Validate the search filter
    if (this.searchFilter != null) {
      this.searchFilter.internalValidate();
    }
  }

  /**
   * Gets the traversal mode for the search folder.
   *
   * @return the traversal
   */
  public SearchFolderTraversal getTraversal() {
    return traversal;
  }

  /**
   * Sets the traversal.
   *
   * @param traversal the new traversal
   */
  public void setTraversal(SearchFolderTraversal traversal) {
    if (this.canSetFieldValue(this.traversal, traversal)) {
      this.traversal = traversal;
      this.changed();
    }
  }

  /**
   * Gets the list of root folder the search folder searches in.
   *
   * @return the root folder ids
   */
  public FolderIdCollection getRootFolderIds() {
    return rootFolderIds;
  }

  /**
   * Gets the search filter associated with the search folder.
   * Available search filter classes include SearchFilter.IsEqualTo,
   * SearchFilter.ContainsSubstring and SearchFilter.SearchFilterCollection.
   *
   * @return the search filter
   */
  public SearchFilter getSearchFilter() {
    return searchFilter;
  }

  /**
   * Sets the search filter.
   *
   * @param searchFilter the new search filter
   */
  public void setSearchFilter(SearchFilter searchFilter) {

    if (this.searchFilter != null) {
      this.searchFilter.removeChangeEvent(this);
    }

    if (this.canSetFieldValue(this.searchFilter, searchFilter)) {
      this.searchFilter = searchFilter;
      this.changed();
    }
    if (this.searchFilter != null) {
      this.searchFilter.addOnChangeEvent(this);
    }
  }

}