/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 1997-2006.
*
* Licensed under the Aduna BSD-style license.
*/
package org.openrdf.rio.rdfxml;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* A collection of XML attributes.
*/
class Atts {
/*-----------*
* Variables *
*-----------*/
/**
* List containing Att objects.
*/
private List<Att> attributes;
/*--------------*
* Constructors *
*--------------*/
/**
* Creates a new <tt>Atts</tt> object.
*/
public Atts() {
this(4);
}
/**
* Creates a new <tt>Atts</tt> object.
*
* @param size
* The initial size of the array for storing attributes.
*/
public Atts(int size) {
attributes = new ArrayList<Att>(size);
}
/*---------*
* Methods *
*---------*/
/**
* Adds an attribute.
*/
public void addAtt(Att att) {
attributes.add(att);
}
/**
* Get an iterator on the attributes.
*
* @return an Iterator over Att objects.
*/
public Iterator<Att> iterator() {
return attributes.iterator();
}
/**
* Gets the attribute with the specified QName.
*
* @param qName
* The QName of an attribute.
* @return The attribute with the specified QName, or <tt>null</tt> if no
* such attribute could be found.
*/
public Att getAtt(String qName) {
for (int i = 0; i < attributes.size(); i++) {
Att att = attributes.get(i);
if (att.getQName().equals(qName)) {
return att;
}
}
return null;
}
/**
* Gets the attribute with the specified namespace and local name.
*
* @param namespace
* The namespace of an attribute.
* @param localName
* The local name of an attribute.
* @return The attribute with the specified namespace and local name, or
* <tt>null</tt> if no such attribute could be found.
*/
public Att getAtt(String namespace, String localName) {
for (int i = 0; i < attributes.size(); i++) {
Att att = attributes.get(i);
if (att.getLocalName().equals(localName) && att.getNamespace().equals(namespace)) {
return att;
}
}
return null;
}
/**
* Removes the attribute with the specified QName and returns it.
*
* @param qName
* The QName of an attribute.
* @return The removed attribute, or <tt>null</tt> if no attribute with the
* specified QName could be found.
*/
public Att removeAtt(String qName) {
for (int i = 0; i < attributes.size(); i++) {
Att att = attributes.get(i);
if (att.getQName().equals(qName)) {
attributes.remove(i);
return att;
}
}
return null;
}
/**
* Removes the attribute with the specified namespace and local name and
* returns it.
*
* @param namespace
* The namespace of an attribute.
* @param localName
* The local name of an attribute.
* @return The removed attribute, or <tt>null</tt> if no attribute with the
* specified namespace and local name could be found.
*/
public Att removeAtt(String namespace, String localName) {
for (int i = 0; i < attributes.size(); i++) {
Att att = attributes.get(i);
if (att.getLocalName().equals(localName) && att.getNamespace().equals(namespace)) {
attributes.remove(i);
return att;
}
}
return null;
}
/**
* Returns the number of attributes contained in this object.
*/
public int size() {
return attributes.size();
}
/**
* Produces a String-representation of this object.
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Atts[");
for (int i = 0; i < attributes.size(); i++) {
Att att = attributes.get(i);
sb.append(att.getQName());
sb.append("=");
sb.append(att.getValue());
sb.append("; ");
}
sb.append("]");
return sb.toString();
}
}