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import java.io.IOException; |
import java.io.IOException; |
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import java.io.Writer; |
import java.io.Writer; |
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import java.util.Enumeration; |
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import java.util.HashSet; |
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import java.util.LinkedList; |
import java.util.LinkedList; |
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import java.util.Set; |
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import javax.xml.XMLConstants; |
import javax.xml.XMLConstants; |
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import javax.xml.namespace.NamespaceContext; |
import javax.xml.namespace.NamespaceContext; |
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implements XMLStreamWriter |
implements XMLStreamWriter |
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{ |
{ |
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/** |
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* The underlying character stream to write to. |
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*/ |
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protected final Writer writer; |
protected final Writer writer; |
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/** |
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* The encoding being used. |
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* Note that this must match the encoding of the character stream. |
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*/ |
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protected final String encoding; |
protected final String encoding; |
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/** |
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* Whether prefix defaulting is being used. |
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* If true and a prefix has not been defined for a namespace specified on |
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* an element or an attribute, a new prefix and namespace declaration will |
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* be created. |
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*/ |
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protected final boolean prefixDefaulting; |
protected final boolean prefixDefaulting; |
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/** |
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* The namespace context used to determine the namespace-prefix mappings |
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* in scope. |
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*/ |
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protected NamespaceContext namespaceContext; |
protected NamespaceContext namespaceContext; |
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/** |
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* The stack of elements in scope. |
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* Used to close the remaining elements. |
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*/ |
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private LinkedList elements; |
private LinkedList elements; |
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/** |
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* Whether a start element has been opened but not yet closed. |
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*/ |
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private boolean inStartElement; |
private boolean inStartElement; |
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/** |
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* Whether we are in an empty element. |
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*/ |
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private boolean emptyElement; |
private boolean emptyElement; |
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private NamespaceSupport namespaces; |
private NamespaceSupport namespaces; |
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private int count = 0; |
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/** |
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* Constructor. |
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* @see #writer |
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* @see #encoding |
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* @see #prefixDefaulting |
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*/ |
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protected XMLStreamWriterImpl(Writer writer, String encoding, |
protected XMLStreamWriterImpl(Writer writer, String encoding, |
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boolean prefixDefaulting) |
boolean prefixDefaulting) |
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{ |
{ |
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namespaces = new NamespaceSupport(); |
namespaces = new NamespaceSupport(); |
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} |
} |
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/** |
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* Write the end of a start-element event. |
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* This will close the element if it was defined to be an empty element. |
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*/ |
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private void endStartElement() |
private void endStartElement() |
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throws IOException |
throws IOException |
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{ |
{ |
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if (!isDeclared) |
if (!isDeclared) |
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{ |
{ |
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if (prefixDefaulting) |
if (prefixDefaulting) |
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prefix = XMLConstants.DEFAULT_NS_PREFIX; |
prefix = createPrefix(namespaceURI); |
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else |
else |
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throw new XMLStreamException("namespace " + namespaceURI + |
throw new XMLStreamException("namespace " + namespaceURI + |
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" has not been declared"); |
" has not been declared"); |
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writer.write(':'); |
writer.write(':'); |
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} |
} |
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writer.write(localName); |
writer.write(localName); |
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if (prefixDefaulting && !isDeclared) |
inStartElement = true; |
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if (!isDeclared) |
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{ |
{ |
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writeNamespace(prefix, namespaceURI); |
writeNamespace(prefix, namespaceURI); |
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} |
} |
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elements.addLast(new String[] { prefix, localName }); |
elements.addLast(new String[] { prefix, localName }); |
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inStartElement = true; |
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} |
} |
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catch (IOException e) |
catch (IOException e) |
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{ |
{ |
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} |
} |
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} |
} |
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/** |
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* Creates a new unique prefix in the document. |
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* Subclasses may override this method to provide a suitably unique prefix |
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* for the given namespace. |
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* @param namespaceURI the namespace URI |
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*/ |
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protected String createPrefix(String namespaceURI) |
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{ |
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Set prefixes = new HashSet(); |
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for (Enumeration e = namespaces.getPrefixes(); e.hasMoreElements(); ) |
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prefixes.add(e.nextElement()); |
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String ret; |
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do |
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{ |
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ret = "ns" + (count++); |
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} |
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while (prefixes.contains(ret)); |
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return ret; |
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} |
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public void writeStartElement(String prefix, String localName, |
public void writeStartElement(String prefix, String localName, |
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String namespaceURI) |
String namespaceURI) |
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throws XMLStreamException |
throws XMLStreamException |
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throw new IllegalArgumentException(name); |
throw new IllegalArgumentException(name); |
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} |
} |
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/** |
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* Write the specified text, ensuring that the content is suitably encoded |
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* for XML. |
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* @param text the text to write |
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* @param inAttr whether we are in an attribute value |
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*/ |
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private void writeEncoded(String text, boolean inAttr) |
private void writeEncoded(String text, boolean inAttr) |
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throws IOException |
throws IOException |
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{ |
{ |