Android Open Source - msf-spaces-sdk-android Creation Info

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License

The source code is released under:

Apache License

Java Source Code

package de.imc.mirror.sdk.android.cdm;
/*from   www.ja  v  a2 s  .c  o  m*/
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Calendar;
import java.util.Date;

import de.imc.mirror.sdk.android.utils.DatatypeConverter;

import org.jdom2.Element;

/**
 * Model for the creation information as available with CDM 2.0. 
 * @author simon.schwantzer(at)im-c.de
 *
 */
public class CreationInfo implements Serializable, de.imc.mirror.sdk.cdm.CreationInfo {
  
  private static final long serialVersionUID = 1L;
  private transient Date creationDate;
  private final String creator;
  private final String application;
  
  /**
   * Create a new creation information for data objects.
   * @param creationDate Date the data object was created.
   * @param creator Identifier for the person who created the data object, e.g., the bare-JID of the user logged in. May be <code>null</code>.
   * @param application Identifier for the application which created the data object, e.g., the application namespace. May be <code>null</code>.
   */
  public CreationInfo(Date creationDate, String creator, String application) {
    this.creationDate = creationDate;
    this.creator = creator;
    this.application = application;
  }
  
  /**
   * Creates a new creation information based on a related CDM XML element.
   * @param element XML element to retrieve data from.
   */
  public CreationInfo(Element element) {
    Element dateElement = element.getChild("date", element.getNamespace());
    this.creationDate = DatatypeConverter.parseDateTime(dateElement.getText()).getTime();
    Element personElement = element.getChild("person", element.getNamespace());
    this.creator = personElement != null ? personElement.getText() : null;
    Element applicationElement = element.getChild("application", element.getNamespace());
    this.application = applicationElement != null ? applicationElement.getText() : null;
  }

  /**
   * Returns the date when the data object was created.
   * @return Data of creation.
   */
  @Override
  public Date getCreationDate() {
    return creationDate;
  }

  /**
   * Returns the creator of the data object.
   * @return Identifier, e.g. bare-JID, for the creator. May be <code>null</code> if no creator is set.
   */
  @Override
  public String getCreator() {
    return creator;
  }

  /**
   * Return the application which created the data object. 
   * @return Identifier (e.g. namespace) of the application in which the data object was created. May be <code>null</code> if this information is not available.
   */
  @Override
  public String getApplication() {
    return application;
  }
  
  @Override
  public Element generateXMLElement(String namespaceURI) {
    Element element = new Element("creationInfo", namespaceURI);
    Element dateElement = new Element("date", namespaceURI);
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(creationDate);
    dateElement.setText(DatatypeConverter.printDateTime(calendar));
    element.addContent(dateElement);
    if (creator != null) {
      Element personElement = new Element("person", namespaceURI);
      personElement.setText(creator);
      element.addContent(personElement);
    }
    if (application != null) {
      Element applicationElement = new Element("application", namespaceURI);
      applicationElement.setText(application);
      element.addContent(applicationElement);
    }
    return element;
  }
  
  /**
   * Manual serialization of Date object is required.
   */
  private synchronized void writeObject(ObjectOutputStream s) throws IOException {
    s.defaultWriteObject();
    s.writeLong(creationDate.getTime());
  }
  
  /**
   * Manual serialization enforces manual deserialization.
   */
  private synchronized void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException {
    s.defaultReadObject();
    creationDate = new Date(s.readLong());
  }
}

Java Source Code List

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