net.sf.gluebooster.java.booster.basic.text.xml.AbstractXmlEventWriter Maven / Gradle / Ivy

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package net.sf.gluebooster.java.booster.basic.text.xml;

import java.util.HashMap;
import java.util.Map;

import javax.xml.namespace.NamespaceContext;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLStreamException;

/**
 * Handles the context of the events.
 * The default namespace, the namespace context and the prefixes are stored here.
 * Other functionalities must be done in subclasses. 
 * @author Christian Bauer
 *
 */
public abstract class AbstractXmlEventWriter implements XMLEventWriter
{
  /**
   * The value of the corresponding property.
   */
  private String defaultNamespace;
  
 
  /**
   * The value of the corresponding property.
   */
  private NamespaceContext context;

  /**
   * The value of the corresponding property.
   */
  private Map prefixes = new HashMap();
  
  /**
   * Default constructor.
   */
  protected AbstractXmlEventWriter()
  {
    
  }
  
  /**
   * Invokes the add method for each event of the reader.
   */
  @Override
  public void add(XMLEventReader reader) throws XMLStreamException
  {
    while (reader.hasNext())
      add(reader.nextEvent());
    
  }

  @Override
  public NamespaceContext getNamespaceContext()
  {
    return context;
  }

  @Override
  public String getPrefix(String uri) throws XMLStreamException
  {
    return prefixes.get(uri);
  }

  @Override
  public void setDefaultNamespace(String uri) throws XMLStreamException
  {
    defaultNamespace = uri;
    
  }

  @Override
  public void setNamespaceContext(NamespaceContext context)
      throws XMLStreamException
  {
    this.context = context;
    
  }

  @Override
  public void setPrefix(String prefix, String uri) throws XMLStreamException
  {
    prefixes.put(uri, prefix);
    
  }

  /**
   * Returns the value of the property
   * @return the value set
   */
  public String getDefaultNamespace()
  {
    return defaultNamespace;
  }

}