stefano 00/09/30 17:17:37
Modified: src/org/apache/cocoon/transformation Tag: xml-cocoon2
XIncludeTransformer.java
Log:
tab cleanup (only cosmetics: ignore)
Revision Changes Path
No revision
No revision
1.1.2.7 +269 -281
xml-cocoon/src/org/apache/cocoon/transformation/Attic/XIncludeTransformer.java
Index: XIncludeTransformer.java
===================================================================
RCS file:
/home/cvs/xml-cocoon/src/org/apache/cocoon/transformation/Attic/XIncludeTransformer.java,v
retrieving revision 1.1.2.6
retrieving revision 1.1.2.7
diff -u -r1.1.2.6 -r1.1.2.7
--- XIncludeTransformer.java 2000/09/05 17:26:24 1.1.2.6
+++ XIncludeTransformer.java 2000/10/01 00:17:37 1.1.2.7
@@ -35,312 +35,300 @@
import org.apache.cocoon.xml.xpath.XPathAPI;
/**
- * My first pass at an XInclude transformation. Currently it should set the
base URI
+ * My first pass at an XInclude transformation. Currently it should set the
base URI
* from the SAX Locator's system id but allow it to be overridden by xml:base
* elements as the XInclude spec mandates. It's also got some untested code
* that should handle inclusion of text includes, but that method isn't
called
* by the SAX event FSM yet.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Donald Ball</a>
- * @version CVS $Revision: 1.1.2.6 $ $Date: 2000/09/05 17:26:24 $ $Author:
stefano $
+ * @version CVS $Revision: 1.1.2.7 $ $Date: 2000/10/01 00:17:37 $ $Author:
stefano $
*/
public class XIncludeTransformer extends AbstractTransformer implements
Composer {
- protected boolean debug = true;
+ protected boolean debug = false;
- protected ComponentManager manager = null;
+ protected ComponentManager manager = null;
- public static final String XMLBASE_NAMESPACE_URI =
"http://www.w3.org/XML/1998/namespace";;
- public static final String XMLBASE_ATTRIBUTE = "base";
+ public static final String XMLBASE_NAMESPACE_URI =
"http://www.w3.org/XML/1998/namespace";;
+ public static final String XMLBASE_ATTRIBUTE = "base";
- public static final String XINCLUDE_NAMESPACE_URI =
"http://www.w3.org/1999/XML/xinclude";;
- public static final String XINCLUDE_INCLUDE_ELEMENT = "include";
- public static final String XINCLUDE_INCLUDE_ELEMENT_HREF_ATTRIBUTE =
"href";
- public static final String XINCLUDE_INCLUDE_ELEMENT_PARSE_ATTRIBUTE =
"parse";
+ public static final String XINCLUDE_NAMESPACE_URI =
"http://www.w3.org/1999/XML/xinclude";;
+ public static final String XINCLUDE_INCLUDE_ELEMENT = "include";
+ public static final String XINCLUDE_INCLUDE_ELEMENT_HREF_ATTRIBUTE =
"href";
+ public static final String XINCLUDE_INCLUDE_ELEMENT_PARSE_ATTRIBUTE =
"parse";
- protected URL base_xmlbase_uri = null;
-
- /** The current XMLBase URI. We start with an empty "dummy" URL. **/
- protected URL current_xmlbase_uri = null;
+ protected URL base_xmlbase_uri = null;
- /** This is a stack of xml:base attributes which belong to our
ancestors **/
- protected Stack xmlbase_stack = new Stack();
+ /** The current XMLBase URI. We start with an empty "dummy" URL. **/
+ protected URL current_xmlbase_uri = null;
- /** namespace uri of the last element which had an xml:base attribute
**/
- protected String last_xmlbase_element_uri = "";
+ /** This is a stack of xml:base attributes which belong to our ancestors
**/
+ protected Stack xmlbase_stack = new Stack();
- protected Stack xmlbase_element_uri_stack = new Stack();
+ /** namespace uri of the last element which had an xml:base attribute **/
+ protected String last_xmlbase_element_uri = "";
- /** name of the last element which had an xml:base attribute **/
- protected String last_xmlbase_element_name = "";
+ protected Stack xmlbase_element_uri_stack = new Stack();
- protected Stack xmlbase_element_name_stack = new Stack();
+ /** name of the last element which had an xml:base attribute **/
+ protected String last_xmlbase_element_name = "";
+ protected Stack xmlbase_element_name_stack = new Stack();
+
public void setup(EntityResolver resolver, Map objectModel,
- String source, Parameters parameters)
+ String source, Parameters parameters)
throws ProcessingException, SAXException, IOException {}
- /*
- try {
- System.err.println("SOURCE: "+source);
- base_xmlbase_uri = new URL(source);
- System.err.println("SOURCE URI:
"+base_xmlbase_uri.toString());
- } catch (MalformedURLException e) {
- throw new ProcessingException(e.getMessage());
- }
- }
- */
-
- public void setComponentManager(ComponentManager manager) {
- this.manager = manager;
- }
-
- public void startElement(String uri, String name, String raw,
Attributes attr) throws SAXException {
- String value;
- if ((value =
attr.getValue(XMLBASE_NAMESPACE_URI,XMLBASE_ATTRIBUTE)) != null) {
- try {
- startXMLBaseAttribute(uri,name,value);
- } catch (MalformedURLException e) {
- throw new SAXException(e);
- }
- }
- if (uri.equals(XINCLUDE_NAMESPACE_URI) &&
name.equals(XINCLUDE_INCLUDE_ELEMENT)) {
- String href =
attr.getValue("",XINCLUDE_INCLUDE_ELEMENT_HREF_ATTRIBUTE);
- String parse =
attr.getValue("",XINCLUDE_INCLUDE_ELEMENT_PARSE_ATTRIBUTE);
- try {
- processXIncludeElement(href, parse);
- } catch (MalformedURLException e) {
- throw new SAXException(e);
- } catch (IOException e) {
- throw new SAXException(e);
- }
- return;
- }
- if (super.contentHandler!= null) {
- super.contentHandler.startElement(uri,name,raw,attr);
- }
- }
-
- public void endElement(String uri, String name, String raw) throws
SAXException {
- if (last_xmlbase_element_uri.equals(uri) &&
last_xmlbase_element_name.equals(name)) {
- endXMLBaseAttribute();
- }
- if (uri.equals(XINCLUDE_NAMESPACE_URI) &&
name.equals(XINCLUDE_INCLUDE_ELEMENT)) {
- return;
- }
- if (super.contentHandler!= null) {
- super.contentHandler.endElement(uri,name,raw);
- }
- }
+ /*
+ try {
+ System.err.println("SOURCE: "+source);
+ base_xmlbase_uri = new URL(source);
+ System.err.println("SOURCE URI: "+base_xmlbase_uri.toString());
+ } catch (MalformedURLException e) {
+ throw new ProcessingException(e.getMessage());
+ }
+ }
+ */
+
+ public void setComponentManager(ComponentManager manager) {
+ this.manager = manager;
+ }
+
+ public void startElement(String uri, String name, String raw, Attributes
attr) throws SAXException {
+ String value;
+ if ((value = attr.getValue(XMLBASE_NAMESPACE_URI,XMLBASE_ATTRIBUTE))
!= null) {
+ try {
+ startXMLBaseAttribute(uri,name,value);
+ } catch (MalformedURLException e) {
+ throw new SAXException(e);
+ }
+ }
+ if (uri.equals(XINCLUDE_NAMESPACE_URI) &&
name.equals(XINCLUDE_INCLUDE_ELEMENT)) {
+ String href =
attr.getValue("",XINCLUDE_INCLUDE_ELEMENT_HREF_ATTRIBUTE);
+ String parse =
attr.getValue("",XINCLUDE_INCLUDE_ELEMENT_PARSE_ATTRIBUTE);
+ try {
+ processXIncludeElement(href, parse);
+ } catch (MalformedURLException e) {
+ throw new SAXException(e);
+ } catch (IOException e) {
+ throw new SAXException(e);
+ }
+ return;
+ }
+ super.startElement(uri,name,raw,attr);
+ }
+
+ public void endElement(String uri, String name, String raw) throws
SAXException {
+ if (last_xmlbase_element_uri.equals(uri) &&
last_xmlbase_element_name.equals(name)) {
+ endXMLBaseAttribute();
+ }
+ if (uri.equals(XINCLUDE_NAMESPACE_URI) &&
name.equals(XINCLUDE_INCLUDE_ELEMENT)) {
+ return;
+ }
+ super.endElement(uri,name,raw);
+ }
public void setDocumentLocator(Locator locator) {
- try {
- base_xmlbase_uri = new URL(locator.getSystemId());
- if (current_xmlbase_uri == null) {
- current_xmlbase_uri = base_xmlbase_uri;
- }
- } catch (MalformedURLException e) {}
- if (super.contentHandler!=null) {
- super.contentHandler.setDocumentLocator(locator);
- }
+ try {
+ base_xmlbase_uri = new URL(locator.getSystemId());
+ if (current_xmlbase_uri == null) {
+ current_xmlbase_uri = base_xmlbase_uri;
+ }
+ } catch (MalformedURLException e) {}
+ super.setDocumentLocator(locator);
}
- protected void startXMLBaseAttribute(String uri, String name, String
value) throws MalformedURLException {
- if (current_xmlbase_uri != null) {
- xmlbase_stack.push(current_xmlbase_uri);
- }
- current_xmlbase_uri = new URL(value);
-
- xmlbase_element_uri_stack.push(last_xmlbase_element_uri);
- last_xmlbase_element_uri = uri;
-
- xmlbase_element_name_stack.push(last_xmlbase_element_name);
- last_xmlbase_element_name = name;
- }
-
- protected void endXMLBaseAttribute() {
- if (xmlbase_stack.size() > 0) {
- current_xmlbase_uri = (URL)xmlbase_stack.pop();
- } else {
- current_xmlbase_uri = base_xmlbase_uri;
- }
- last_xmlbase_element_uri =
(String)xmlbase_element_uri_stack.pop();
- last_xmlbase_element_name =
(String)xmlbase_element_name_stack.pop();
- }
-
- protected void processXIncludeElement(String href, String parse) throws
SAXException,MalformedURLException,IOException {
- if (debug) { System.err.println("Processing XInclude element:
href="+href+", parse="+parse); }
- URL url;
- String suffix;
- int index = href.indexOf('#');
- if (index < 0) {
- url = new URL(current_xmlbase_uri,href);
- suffix = "";
- } else {
- url = new
URL(current_xmlbase_uri,href.substring(0,index));
- suffix = href.substring(index+1);
- }
- if (debug) { System.err.println("URL: "+url+"\nSuffix:
"+suffix); }
- Object object = url.getContent();
- if (debug) { System.err.println("Object: "+object); }
- if (parse.equals("text")) {
- if (debug) { System.err.println("Parse type is text"); }
- if (object instanceof Reader) {
- Reader reader = (Reader)object;
- int read;
- char ary[] = new char[1024];
- if (reader != null) {
- while ((read = reader.read(ary)) != -1)
{
- if (super.contentHandler !=
null) {
-
super.contentHandler.characters(ary,0,read);
- }
- }
- reader.close();
- }
- } else if (object instanceof InputStream) {
- InputStream input = (InputStream)object;
- InputStreamReader reader = new
InputStreamReader(input);
- int read;
- char ary[] = new char[1024];
- if (reader != null) {
- while ((read = reader.read(ary)) != -1)
{
- if (super.contentHandler !=
null) {
-
super.contentHandler.characters(ary,0,read);
- }
- }
- reader.close();
- }
- }
- } else if (parse.equals("xml")) {
- if (debug) { System.err.println("Parse type is XML"); }
- Parser parser = (Parser)manager.getComponent("parser");
- InputSource input;
- if (object instanceof Reader) {
- input = new InputSource((Reader)object);
- } else if (object instanceof InputStream) {
- input = new InputSource((InputStream)object);
- } else {
- throw new SAXException("Unknown object type:
"+object);
- }
- if (suffix.startsWith("xpointer(") &&
suffix.endsWith(")")) {
- String xpath =
suffix.substring(9,suffix.length()-1);
- if (debug) { System.err.println("XPath is
"+xpath); }
- DOMBuilder builder = new DOMBuilder(parser);
- parser.setContentHandler(builder);
- parser.setLexicalHandler(builder);
- parser.parse(input);
- Document document = builder.getDocument();
- NodeList list =
XPathAPI.selectNodeList(document,xpath);
- DOMStreamer streamer = new
DOMStreamer(super.contentHandler,super.lexicalHandler);
- int length = list.getLength();
- for (int i=0; i<length; i++) {
- streamer.stream(list.item(i));
- }
- } else {
- XIncludeContentHandler xinclude_handler = new
XIncludeContentHandler(super.contentHandler,super.lexicalHandler);
- xinclude_handler.debug = debug;
- parser.setContentHandler(xinclude_handler);
- parser.setLexicalHandler(xinclude_handler);
- parser.parse(input);
- }
- }
- }
-
- class XIncludeContentHandler implements ContentHandler,LexicalHandler {
-
- ContentHandler content_handler;
- LexicalHandler lexical_handler;
- boolean debug;
-
- XIncludeContentHandler(ContentHandler content_handler,
LexicalHandler lexical_handler) {
- this.content_handler = content_handler;
- this.lexical_handler = lexical_handler;
- }
-
- public void setDocumentLocator(Locator locator) {
- content_handler.setDocumentLocator(locator);
- }
-
- public void startDocument() {
- if (debug) { System.err.println("Internal start
document received"); }
- /** We don't pass start document on to the "real"
handler **/
- }
-
- public void endDocument() {
- if (debug) { System.err.println("Internal end document
received"); }
- /** We don't pass end document on to the "real" handler
**/
- }
-
- public void startPrefixMapping(String prefix, String uri)
- throws SAXException {
- content_handler.startPrefixMapping(prefix,uri);
- }
-
- public void endPrefixMapping(String prefix)
- throws SAXException {
- content_handler.endPrefixMapping(prefix);
- }
-
- public void startElement(String namespace, String name, String
raw,
- Attributes attr) throws SAXException {
- if (debug) { System.err.println("Internal element
received: "+name); }
- content_handler.startElement(namespace,name,raw,attr);
- }
-
- public void endElement(String namespace, String name, String
raw)
- throws SAXException {
- content_handler.endElement(namespace,name,raw);
- }
-
- public void characters(char ary[], int start, int length)
- throws SAXException {
- content_handler.characters(ary,start,length);
- }
-
- public void ignorableWhitespace(char ary[], int start, int
length)
- throws SAXException {
- content_handler.ignorableWhitespace(ary,start,length);
- }
-
- public void processingInstruction(String target, String data)
- throws SAXException {
- content_handler.processingInstruction(target,data);
- }
-
- public void skippedEntity(String name)
- throws SAXException {
- content_handler.skippedEntity(name);
- }
-
- public void startDTD(String name, String public_id, String
system_id)
- throws SAXException {
- lexical_handler.startDTD(name,public_id,system_id);
- }
-
- public void endDTD() throws SAXException {
- lexical_handler.endDTD();
- }
-
- public void startEntity(String name) throws SAXException {
- lexical_handler.startEntity(name);
- }
-
- public void endEntity(String name) throws SAXException {
- lexical_handler.endEntity(name);
- }
-
- public void startCDATA() throws SAXException {
- lexical_handler.startCDATA();
- }
-
- public void endCDATA() throws SAXException {
- lexical_handler.endCDATA();
- }
-
- public void comment(char ary[], int start, int length)
- throws SAXException {
- lexical_handler.comment(ary,start,length);
- }
+ protected void startXMLBaseAttribute(String uri, String name, String
value) throws MalformedURLException {
+ if (current_xmlbase_uri != null) {
+ xmlbase_stack.push(current_xmlbase_uri);
+ }
+ current_xmlbase_uri = new URL(value);
- }
+ xmlbase_element_uri_stack.push(last_xmlbase_element_uri);
+ last_xmlbase_element_uri = uri;
+ xmlbase_element_name_stack.push(last_xmlbase_element_name);
+ last_xmlbase_element_name = name;
+ }
+
+ protected void endXMLBaseAttribute() {
+ if (xmlbase_stack.size() > 0) {
+ current_xmlbase_uri = (URL)xmlbase_stack.pop();
+ } else {
+ current_xmlbase_uri = base_xmlbase_uri;
+ }
+ last_xmlbase_element_uri = (String)xmlbase_element_uri_stack.pop();
+ last_xmlbase_element_name = (String)xmlbase_element_name_stack.pop();
+ }
+
+ protected void processXIncludeElement(String href, String parse) throws
SAXException,MalformedURLException,IOException {
+ if (debug) { System.err.println("Processing XInclude element:
href="+href+", parse="+parse); }
+ URL url;
+ String suffix;
+ int index = href.indexOf('#');
+ if (index < 0) {
+ url = new URL(current_xmlbase_uri,href);
+ suffix = "";
+ } else {
+ url = new URL(current_xmlbase_uri,href.substring(0,index));
+ suffix = href.substring(index+1);
+ }
+ if (debug) { System.err.println("URL: "+url+"\nSuffix: "+suffix); }
+ Object object = url.getContent();
+ if (debug) { System.err.println("Object: "+object); }
+ if (parse.equals("text")) {
+ if (debug) { System.err.println("Parse type is text"); }
+ if (object instanceof Reader) {
+ Reader reader = (Reader)object;
+ int read;
+ char ary[] = new char[1024];
+ if (reader != null) {
+ while ((read = reader.read(ary)) != -1) {
+ super.characters(ary,0,read);
+ }
+ reader.close();
+ }
+ } else if (object instanceof InputStream) {
+ InputStream input = (InputStream)object;
+ InputStreamReader reader = new InputStreamReader(input);
+ int read;
+ char ary[] = new char[1024];
+ if (reader != null) {
+ while ((read = reader.read(ary)) != -1) {
+ super.characters(ary,0,read);
+ }
+ reader.close();
+ }
+ }
+ } else if (parse.equals("xml")) {
+ if (debug) { System.err.println("Parse type is XML"); }
+ Parser parser = (Parser)manager.getComponent("parser");
+ InputSource input;
+ if (object instanceof Reader) {
+ input = new InputSource((Reader)object);
+ } else if (object instanceof InputStream) {
+ input = new InputSource((InputStream)object);
+ } else {
+ throw new SAXException("Unknown object type: "+object);
+ }
+ if (suffix.startsWith("xpointer(") && suffix.endsWith(")")) {
+ String xpath = suffix.substring(9,suffix.length()-1);
+ if (debug) { System.err.println("XPath is "+xpath); }
+ DOMBuilder builder = new DOMBuilder(parser);
+ parser.setContentHandler(builder);
+ parser.setLexicalHandler(builder);
+ parser.parse(input);
+ Document document = builder.getDocument();
+ NodeList list = XPathAPI.selectNodeList(document,xpath);
+ DOMStreamer streamer = new
DOMStreamer(super.contentHandler,super.lexicalHandler);
+ int length = list.getLength();
+ for (int i=0; i<length; i++) {
+ streamer.stream(list.item(i));
+ }
+ } else {
+ XIncludeContentHandler xinclude_handler = new
XIncludeContentHandler(super.contentHandler,super.lexicalHandler);
+ xinclude_handler.debug = debug;
+ parser.setContentHandler(xinclude_handler);
+ parser.setLexicalHandler(xinclude_handler);
+ parser.parse(input);
+ }
+ }
+ }
+
+ class XIncludeContentHandler implements ContentHandler, LexicalHandler {
+
+ ContentHandler content_handler;
+ LexicalHandler lexical_handler;
+ boolean debug;
+
+ XIncludeContentHandler(ContentHandler content_handler,
LexicalHandler lexical_handler) {
+ this.content_handler = content_handler;
+ this.lexical_handler = lexical_handler;
+ }
+
+ public void setDocumentLocator(Locator locator) {
+ content_handler.setDocumentLocator(locator);
+ }
+
+ public void startDocument() {
+ if (debug) { System.err.println("Internal start document
received"); }
+ /** We don't pass start document on to the "real" handler **/
+ }
+
+ public void endDocument() {
+ if (debug) { System.err.println("Internal end document
received"); }
+ /** We don't pass end document on to the "real" handler **/
+ }
+
+ public void startPrefixMapping(String prefix, String uri)
+ throws SAXException {
+ content_handler.startPrefixMapping(prefix,uri);
+ }
+
+ public void endPrefixMapping(String prefix)
+ throws SAXException {
+ content_handler.endPrefixMapping(prefix);
+ }
+
+ public void startElement(String namespace, String name, String raw,
+ Attributes attr) throws SAXException {
+ if (debug) { System.err.println("Internal element received:
"+name); }
+ content_handler.startElement(namespace,name,raw,attr);
+ }
+
+ public void endElement(String namespace, String name, String raw)
+ throws SAXException {
+ content_handler.endElement(namespace,name,raw);
+ }
+
+ public void characters(char ary[], int start, int length)
+ throws SAXException {
+ content_handler.characters(ary,start,length);
+ }
+
+ public void ignorableWhitespace(char ary[], int start, int length)
+ throws SAXException {
+ content_handler.ignorableWhitespace(ary,start,length);
+ }
+
+ public void processingInstruction(String target, String data)
+ throws SAXException {
+ content_handler.processingInstruction(target,data);
+ }
+
+ public void skippedEntity(String name)
+ throws SAXException {
+ content_handler.skippedEntity(name);
+ }
+
+ public void startDTD(String name, String public_id, String system_id)
+ throws SAXException {
+ lexical_handler.startDTD(name,public_id,system_id);
+ }
+
+ public void endDTD() throws SAXException {
+ lexical_handler.endDTD();
+ }
+
+ public void startEntity(String name) throws SAXException {
+ lexical_handler.startEntity(name);
+ }
+
+ public void endEntity(String name) throws SAXException {
+ lexical_handler.endEntity(name);
+ }
+
+ public void startCDATA() throws SAXException {
+ lexical_handler.startCDATA();
+ }
+
+ public void endCDATA() throws SAXException {
+ lexical_handler.endCDATA();
+ }
+
+ public void comment(char ary[], int start, int length)
+ throws SAXException {
+ lexical_handler.comment(ary,start,length);
+ }
+ }
}
