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Posted to cvs@cocoon.apache.org by cz...@apache.org on 2001/09/06 13:10:54 UTC
cvs commit: xml-cocoon2/src/org/apache/cocoon/xml ContentHandlerWrapper.java
cziegeler 01/09/06 04:10:54
Modified: src/org/apache/cocoon/components/source SitemapSource.java
URLSource.java
src/org/apache/cocoon/xml ContentHandlerWrapper.java
Log:
Better handling of LexicalHandlers for toSAX
Revision Changes Path
1.19 +12 -27 xml-cocoon2/src/org/apache/cocoon/components/source/SitemapSource.java
Index: SitemapSource.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/source/SitemapSource.java,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -r1.18 -r1.19
--- SitemapSource.java 2001/09/04 14:44:12 1.18
+++ SitemapSource.java 2001/09/06 11:10:54 1.19
@@ -34,6 +34,7 @@
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
+import org.xml.sax.ext.LexicalHandler;
import org.w3c.dom.Node;
import java.io.ByteArrayInputStream;
@@ -47,7 +48,7 @@
* Description of a source which is defined by a pipeline.
*
* @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
- * @version CVS $Revision: 1.18 $ $Date: 2001/09/04 14:44:12 $
+ * @version CVS $Revision: 1.19 $ $Date: 2001/09/06 11:10:54 $
*/
public final class SitemapSource
@@ -202,22 +203,6 @@
}
/**
- * Is this a file, then the <code>getFile</code> method can
- * return a <code>File</code> object for this source.
- */
- public boolean isFile() {
- return false;
- }
-
- /**
- * Return a <code>File</code> object if this is a local file
- * (if the <code>isFile</code> method returns true).
- */
- public File getFile() {
- return null;
- }
-
- /**
* Refresh this object and update the last modified date
* and content length.
*/
@@ -276,14 +261,22 @@
}
/**
- * Stream content to the consumer
+ * Stream content to the content handler
*/
- public void toSAX(XMLConsumer consumer)
+ public void toSAX(ContentHandler contentHandler)
throws SAXException {
if (this.exception != null) {
throw this.exception;
}
try {
+ XMLConsumer consumer;
+ if (contentHandler instanceof XMLConsumer) {
+ consumer = (XMLConsumer)contentHandler;
+ } else if (contentHandler instanceof LexicalHandler) {
+ consumer = new ContentHandlerWrapper(contentHandler, (LexicalHandler)contentHandler);
+ } else {
+ consumer = new ContentHandlerWrapper(contentHandler);
+ }
if (this.redirectSource != null) {
this.redirectSource.toSAX(consumer);
} else {
@@ -298,14 +291,6 @@
} finally {
reset();
}
- }
-
- /**
- * Stream content to the content handler
- */
- public void toSAX(ContentHandler contentHandler)
- throws SAXException {
- this.toSAX(new ContentHandlerWrapper(contentHandler));
}
private void reset() {
1.11 +9 -6 xml-cocoon2/src/org/apache/cocoon/components/source/URLSource.java
Index: URLSource.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/components/source/URLSource.java,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -r1.10 -r1.11
--- URLSource.java 2001/08/25 19:40:32 1.10
+++ URLSource.java 2001/09/06 11:10:54 1.11
@@ -17,6 +17,7 @@
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
+import org.xml.sax.ext.LexicalHandler;
import java.io.File;
import java.io.FileInputStream;
@@ -30,7 +31,7 @@
* Description of a source which is described by an URL.
*
* @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
- * @version CVS $Revision: 1.10 $ $Date: 2001/08/25 19:40:32 $
+ * @version CVS $Revision: 1.11 $ $Date: 2001/09/06 11:10:54 $
*/
public final class URLSource implements ModifiableSource {
@@ -290,17 +291,19 @@
* Stream content to a content handler or to an XMLConsumer
*/
public void toSAX(ContentHandler handler)
- throws SAXException
- {
+ throws SAXException {
Parser parser = null;
try {
parser = (Parser)this.manager.lookup(Parser.ROLE);
- if (handler instanceof XMLConsumer)
+ if (handler instanceof XMLConsumer) {
parser.setConsumer((XMLConsumer)handler);
- else
+ } else {
parser.setContentHandler(handler);
-
+ if (handler instanceof LexicalHandler) {
+ parser.setLexicalHandler((LexicalHandler)handler);
+ }
+ }
parser.parse(this.getInputSource());
} catch (Exception e){
throw new SAXException("Exception in URLSource.stream()", e);
1.3 +129 -38 xml-cocoon2/src/org/apache/cocoon/xml/ContentHandlerWrapper.java
Index: ContentHandlerWrapper.java
===================================================================
RCS file: /home/cvs/xml-cocoon2/src/org/apache/cocoon/xml/ContentHandlerWrapper.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- ContentHandlerWrapper.java 2001/08/20 13:55:18 1.2
+++ ContentHandlerWrapper.java 2001/09/06 11:10:54 1.3
@@ -13,6 +13,7 @@
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
+import org.xml.sax.ext.LexicalHandler;
/**
* This class is an utility class "wrapping" around a SAX version 2.0
@@ -22,13 +23,16 @@
*
* @author <a href="mailto:dims@yahoo.com">Davanum Srinivas</a>
* (Apache Software Foundation, Computer Associates)
- * @version CVS $Revision: 1.2 $ $Date: 2001/08/20 13:55:18 $
+ * @version CVS $Revision: 1.3 $ $Date: 2001/09/06 11:10:54 $
*/
public class ContentHandlerWrapper extends AbstractXMLConsumer implements Recyclable {
/** The current <code>ContentHandler</code>. */
- protected ContentHandler documentHandler;
+ protected ContentHandler contentHandler;
+ /** The optional <code>LexicalHandler</code> */
+ protected LexicalHandler lexicalHandler;
+
/**
* Create a new <code>ContentHandlerWrapper</code> instance.
*/
@@ -38,10 +42,20 @@
/**
* Create a new <code>ContentHandlerWrapper</code> instance.
+ */
+ public ContentHandlerWrapper(ContentHandler contentHandler) {
+ this();
+ this.setContentHandler(contentHandler);
+ }
+
+ /**
+ * Create a new <code>ContentHandlerWrapper</code> instance.
*/
- public ContentHandlerWrapper(ContentHandler document) {
+ public ContentHandlerWrapper(ContentHandler contentHandler,
+ LexicalHandler lexicalHandler) {
this();
- this.setContentHandler(document);
+ this.setContentHandler(contentHandler);
+ this.setLexicalHandler(lexicalHandler);
}
/**
@@ -49,23 +63,36 @@
*
* @exception IllegalStateException If the <code>ContentHandler</code>
* was already set.
+ */
+ public void setContentHandler(ContentHandler contentHandler)
+ throws IllegalStateException {
+ if (this.contentHandler!=null) throw new IllegalStateException();
+ this.contentHandler=contentHandler;
+ }
+
+ /**
+ * Set the <code>LexicalHandler</code> that will receive XML data.
+ *
+ * @exception IllegalStateException If the <code>LexicalHandler</code>
+ * was already set.
*/
- public void setContentHandler(ContentHandler document)
+ public void setLexicalHandler(LexicalHandler lexicalHandler)
throws IllegalStateException {
- if (this.documentHandler!=null) throw new IllegalStateException();
- this.documentHandler=document;
+ if (this.lexicalHandler!=null) throw new IllegalStateException();
+ this.lexicalHandler=lexicalHandler;
}
public void recycle () {
- this.documentHandler = null;
+ this.contentHandler = null;
+ this.lexicalHandler = null;
}
/**
* Receive an object for locating the origin of SAX document events.
*/
public void setDocumentLocator (Locator locator) {
- if (this.documentHandler==null) return;
- else this.documentHandler.setDocumentLocator(locator);
+ if (this.contentHandler==null) return;
+ else this.contentHandler.setDocumentLocator(locator);
}
/**
@@ -73,9 +100,9 @@
*/
public void startDocument ()
throws SAXException {
- if (this.documentHandler==null)
+ if (this.contentHandler==null)
throw new SAXException("ContentHandler not set");
- this.documentHandler.startDocument();
+ this.contentHandler.startDocument();
}
/**
@@ -83,9 +110,7 @@
*/
public void endDocument ()
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.endDocument();
+ this.contentHandler.endDocument();
}
/**
@@ -93,9 +118,9 @@
*/
public void startPrefixMapping(String prefix, String uri)
throws SAXException {
- if (this.documentHandler==null)
+ if (this.contentHandler==null)
throw new SAXException("ContentHandler not set");
- this.documentHandler.startPrefixMapping(prefix, uri);
+ this.contentHandler.startPrefixMapping(prefix, uri);
}
/**
@@ -103,9 +128,7 @@
*/
public void endPrefixMapping(String prefix)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.endPrefixMapping(prefix);
+ this.contentHandler.endPrefixMapping(prefix);
}
/**
@@ -113,9 +136,7 @@
*/
public void startElement(String uri, String loc, String raw, Attributes a)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.startElement(uri, loc, raw, a);
+ this.contentHandler.startElement(uri, loc, raw, a);
}
@@ -124,9 +145,7 @@
*/
public void endElement(String uri, String loc, String raw)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.endElement(uri, loc, raw);
+ this.contentHandler.endElement(uri, loc, raw);
}
/**
@@ -134,9 +153,7 @@
*/
public void characters(char ch[], int start, int len)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.characters(ch,start,len);
+ this.contentHandler.characters(ch,start,len);
}
/**
@@ -144,9 +161,7 @@
*/
public void ignorableWhitespace(char ch[], int start, int len)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.ignorableWhitespace(ch,start,len);
+ this.contentHandler.ignorableWhitespace(ch,start,len);
}
/**
@@ -154,9 +169,7 @@
*/
public void processingInstruction(String target, String data)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.processingInstruction(target,data);
+ this.contentHandler.processingInstruction(target,data);
}
/**
@@ -167,8 +180,86 @@
*/
public void skippedEntity(String name)
throws SAXException {
- if (this.documentHandler==null)
- throw new SAXException("ContentHandler not set");
- this.documentHandler.skippedEntity(name);
+ this.contentHandler.skippedEntity(name);
+ }
+
+ /**
+ * Report the start of DTD declarations, if any.
+ *
+ * @param name The document type name.
+ * @param publicId The declared public identifier for the external DTD
+ * subset, or null if none was declared.
+ * @param systemId The declared system identifier for the external DTD
+ * subset, or null if none was declared.
+ */
+ public void startDTD(String name, String publicId, String systemId)
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.startDTD(name, publicId, systemId);
+ }
+
+ /**
+ * Report the end of DTD declarations.
+ */
+ public void endDTD()
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.endDTD();
+ }
+
+ /**
+ * Report the beginning of an entity.
+ *
+ * @param name The name of the entity. If it is a parameter entity, the
+ * name will begin with '%'.
+ */
+ public void startEntity(String name)
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.startEntity(name);
+ }
+
+ /**
+ * Report the end of an entity.
+ *
+ * @param name The name of the entity that is ending.
+ */
+ public void endEntity(String name)
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.endEntity(name);
}
+
+ /**
+ * Report the start of a CDATA section.
+ */
+ public void startCDATA()
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.startCDATA();
+ }
+
+ /**
+ * Report the end of a CDATA section.
+ */
+ public void endCDATA()
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.endCDATA();
+ }
+
+
+ /**
+ * Report an XML comment anywhere in the document.
+ *
+ * @param ch An array holding the characters in the comment.
+ * @param start The starting position in the array.
+ * @param len The number of characters to use from the array.
+ */
+ public void comment(char ch[], int start, int len)
+ throws SAXException {
+ if (this.lexicalHandler != null)
+ this.lexicalHandler.comment(ch, start, len);
+ }
+
}
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