stefan 2004/08/02 07:47:09
Modified: proposals/jcrri/src/org/apache/slide/jcr/core
AbstractSAXEventGenerator.java
SysViewSAXEventGenerator.java WorkspaceImpl.java
Added: proposals/jcrri/src/org/apache/slide/jcr/core
DocViewSAXEventGenerator.java
Log:
jcrri: first take at document & system view export from workspace
Revision Changes Path
1.2 +20 -13
jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/AbstractSAXEventGenerator.java
Index: AbstractSAXEventGenerator.java
===================================================================
RCS file:
/home/cvs/jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/AbstractSAXEventGenerator.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- AbstractSAXEventGenerator.java 30 Jul 2004 15:00:32 -0000 1.1
+++ AbstractSAXEventGenerator.java 2 Aug 2004 14:47:09 -0000 1.2
@@ -46,8 +46,8 @@
* <li><code>[EMAIL PROTECTED] #enteringProperties(NodeState, QName,
int)}</code></li>
* <li><code>[EMAIL PROTECTED] #leavingProperties(NodeState, QName,
int)}</code></li>
* <li><code>[EMAIL PROTECTED] #leaving(NodeState, QName, int)}</code></li>
- * <li><code>[EMAIL PROTECTED] #entering(PropertyState, String, int)}</code></li>
- * <li><code>[EMAIL PROTECTED] #leaving(PropertyState, String, int)}</code></li>
+ * <li><code>[EMAIL PROTECTED] #entering(PropertyState, int)}</code></li>
+ * <li><code>[EMAIL PROTECTED] #leaving(PropertyState, int)}</code></li>
* </ul>
* for every item state that is granted read access.
*
@@ -113,17 +113,26 @@
public void serialize() throws RepositoryException, SAXException {
contentHandler.startDocument();
// namespace declarations
+ documentPrefixMappings();
+ // start serializing node state(s)
+ process(startNodeState, startNodeName, 0);
+
+ contentHandler.endDocument();
+ }
+
+ /**
+ *
+ * @throws RepositoryException
+ * @throws SAXException
+ */
+ protected void documentPrefixMappings() throws RepositoryException,
SAXException {
+ // namespace declarations
String[] prefixes = nsReg.getPrefixes();
for (int i = 0; i < prefixes.length; i++) {
String prefix = prefixes[i];
String uri = nsReg.getURI(prefix);
contentHandler.startPrefixMapping(prefix, uri);
}
-
- // start serializing node state(s)
- process(startNodeState, startNodeName, 0);
-
- contentHandler.endDocument();
}
/**
@@ -219,8 +228,8 @@
try {
PropertyState propState = (PropertyState)
stateProvider.getItemState(propId);
// serialize property
- entering(propState, parentUUID, level);
- leaving(propState, parentUUID, level);
+ entering(propState, level);
+ leaving(propState, level);
} catch (ItemStateException ise) {
String msg = "internal error: failed to retrieve state of property " +
propId;
log.error(msg, ise);
@@ -275,22 +284,20 @@
/**
*
* @param state
- * @param parentUUID
* @param level
* @throws RepositoryException
* @throws SAXException
*/
- abstract protected void entering(PropertyState state, String parentUUID, int
level)
+ abstract protected void entering(PropertyState state, int level)
throws RepositoryException, SAXException;
/**
*
* @param state
- * @param parentUUID
* @param level
* @throws RepositoryException
* @throws SAXException
*/
- abstract protected void leaving(PropertyState state, String parentUUID, int
level)
+ abstract protected void leaving(PropertyState state, int level)
throws RepositoryException, SAXException;
}
1.2 +5 -5
jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/SysViewSAXEventGenerator.java
Index: SysViewSAXEventGenerator.java
===================================================================
RCS file:
/home/cvs/jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/SysViewSAXEventGenerator.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- SysViewSAXEventGenerator.java 30 Jul 2004 15:00:32 -0000 1.1
+++ SysViewSAXEventGenerator.java 2 Aug 2004 14:47:09 -0000 1.2
@@ -132,9 +132,9 @@
}
/**
- * @see AbstractSAXEventGenerator#entering(PropertyState, String, int)
+ * @see AbstractSAXEventGenerator#entering(PropertyState, int)
*/
- protected void entering(PropertyState state, String parentUUID, int level)
+ protected void entering(PropertyState state, int level)
throws RepositoryException, SAXException {
String name = state.getName().toJCRName(nsReg);
AttributesImpl attrs = new AttributesImpl();
@@ -168,7 +168,7 @@
// characters
if (type == PropertyType.BINARY) {
if (binaryAsLink) {
- String path = hierMgr.getPath(new PropertyId(parentUUID,
state.getName())).toJCRPath(nsReg);
+ String path = hierMgr.getPath(new
PropertyId(state.getParentUUID(), state.getName())).toJCRPath(nsReg);
char[] chars = path.toCharArray();
contentHandler.characters(chars, 0, chars.length);
} else {
@@ -217,9 +217,9 @@
}
/**
- * @see AbstractSAXEventGenerator#leaving(PropertyState, String, int)
+ * @see AbstractSAXEventGenerator#leaving(PropertyState, int)
*/
- protected void leaving(PropertyState state, String parentUUID, int level)
+ protected void leaving(PropertyState state, int level)
throws RepositoryException, SAXException {
contentHandler.endElement(NS_SV_URI, PROPERTY_ELEMENT, NS_SV_PREFIX + ":" +
PROPERTY_ELEMENT);
}
1.13 +1 -4
jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/WorkspaceImpl.java
Index: WorkspaceImpl.java
===================================================================
RCS file:
/home/cvs/jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/WorkspaceImpl.java,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- WorkspaceImpl.java 30 Jul 2004 15:01:11 -0000 1.12
+++ WorkspaceImpl.java 2 Aug 2004 14:47:09 -0000 1.13
@@ -951,13 +951,10 @@
if (!ticket.getAccessManager().isGranted(state.getId(), Permission.READ_ITEM))
{
throw new PathNotFoundException(absPath);
}
- // @todo implement export of document xml view
-/*
+
new DocViewSAXEventGenerator(state, name.getName(), noRecurse, binaryAsLink,
persistentStateMgr, (NamespaceRegistryImpl) rep.getNamespaceRegistry(),
ticket.getAccessManager(), hierMgr, contentHandler).serialize();
-*/
- throw new RepositoryException("not yet implemented");
}
/**
1.1
jakarta-slide/proposals/jcrri/src/org/apache/slide/jcr/core/DocViewSAXEventGenerator.java
Index: DocViewSAXEventGenerator.java
===================================================================
/*
* $Id: DocViewSAXEventGenerator.java,v 1.1 2004/08/02 14:47:09 stefan Exp $
*
* Copyright 2002-2004 Day Management AG, Switzerland.
*
* Licensed under the Day RI License, Version 2.0 (the "License"),
* as a reference implementation of the following specification:
*
* Content Repository API for Java Technology, revision 0.13
* <http://www.jcp.org/en/jsr/detail?id=170>
*
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License files at
*
* http://www.day.com/content/en/licenses/day-ri-license-2.0
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.slide.jcr.core;
import org.apache.log4j.Logger;
import org.apache.slide.jcr.core.state.ItemStateProvider;
import org.apache.slide.jcr.core.state.NodeState;
import org.apache.slide.jcr.core.state.PropertyState;
import org.apache.slide.jcr.util.Base64;
import org.apache.xml.utils.XMLChar;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import javax.jcr.InvalidSerializedDataException;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* A <code>DocViewSAXEventGenerator</code> instance can be used to generate
* SAX events representing the serialized form of an item in Document View XML.
*
* @author Stefan Guggisberg
* @version $Revision: 1.1 $, $Date: 2004/08/02 14:47:09 $
*/
class DocViewSAXEventGenerator extends AbstractSAXEventGenerator {
private static Logger log = Logger.getLogger(DocViewSAXEventGenerator.class);
protected final HierarchyManager hierMgr;
public static final String CDATA_TYPE = "CDATA";
// jcr:root
public static final QName NODENAME_ROOT =
new QName(NamespaceRegistryImpl.NS_JCR_URI, "root");
// jcr:xmltext
public static final QName NODENAME_XMLTEXT =
new QName(NamespaceRegistryImpl.NS_JCR_URI, "xmltext");
// jcr:xmltext
public static final QName PROPNAME_XMLCHARACTERS =
new QName(NamespaceRegistryImpl.NS_JCR_URI, "xmlcharacters");
// used to temporarily store properties of a node
private final List props;
/**
* Constructor
*
* @param nodeState the node state which should be serialized
* @param nodeName name of the node to be serialized
* @param noRecurse if true, only <code>nodeState</code> and its properties
will
* be serialized; otherwise the entire hierarchy starting
with
* <code>nodeState</code> will be serialized.
* @param binaryAsLink specifies if binary properties are turned into links
* @param stateProvider item state provider for retrieving child item state
* @param nsReg the namespace registry to be used for namespace
declarations
* @param accessMgr the access manager
* @param hierMgr the hierarchy manager used to resolve paths
* @param contentHandler the content handler to feed the SAX events to
*/
DocViewSAXEventGenerator(NodeState nodeState, QName nodeName,
boolean noRecurse, boolean binaryAsLink,
ItemStateProvider stateProvider,
NamespaceRegistryImpl nsReg,
AccessManagerImpl accessMgr,
HierarchyManager hierMgr,
ContentHandler contentHandler) {
super(nodeState, nodeName, noRecurse, binaryAsLink,
stateProvider, nsReg, accessMgr, contentHandler);
this.hierMgr = hierMgr;
props = new ArrayList();
}
/**
* @see AbstractSAXEventGenerator#entering(NodeState, QName, int)
*/
protected void entering(NodeState state, QName name, int level)
throws RepositoryException, SAXException {
// nop
}
/**
* @see AbstractSAXEventGenerator#enteringProperties(NodeState, QName, int)
*/
protected void enteringProperties(NodeState state, QName name, int level)
throws RepositoryException, SAXException {
// reset list of properties
props.clear();
}
/**
* @see AbstractSAXEventGenerator#leavingProperties(NodeState, QName, int)
*/
protected void leavingProperties(NodeState state, QName name, int level)
throws RepositoryException, SAXException {
if (name.equals(NODENAME_XMLTEXT)) {
// the node represents xml character data
Iterator iter = props.iterator();
while (iter.hasNext()) {
PropertyState propState = (PropertyState) iter.next();
QName propName = propState.getName();
if (propName.equals(PROPNAME_XMLCHARACTERS)) {
InternalValue val = propState.getValues()[0];
char[] chars = val.toJCRValue(nsReg).getString().toCharArray();
contentHandler.characters(chars, 0, chars.length);
}
}
} else {
// regalur node
// element name
String elemName;
if (state.getParentUUIDs().size() == 0) {
// root node needs a name
elemName = NODENAME_ROOT.toJCRName(nsReg);
} else {
elemName = name.toJCRName(nsReg);
}
if (!XMLChar.isValidName(elemName)) {
throw new InvalidSerializedDataException("the node name is not a valid
xml element name: " + elemName);
}
// attributes (properties)
AttributesImpl attrs = new AttributesImpl();
Iterator iter = props.iterator();
while (iter.hasNext()) {
PropertyState propState = (PropertyState) iter.next();
QName propName = propState.getName();
// attribute name
String attrName = propState.getName().toJCRName(nsReg);
if (!XMLChar.isValidName(attrName)) {
throw new InvalidSerializedDataException("the property name is not
a valid xml attribute name: " + attrName);
}
// attribute value
String attrValue;
int type = propState.getType();
// process property value (guaranteed to be single-valued and non-null)
InternalValue val = propState.getValues()[0];
if (type == PropertyType.BINARY) {
if (binaryAsLink) {
attrValue = hierMgr.getPath(new
PropertyId(propState.getParentUUID(), propState.getName())).toJCRPath(nsReg);
} else {
// binary data, base64 encoding required
BLOBFileValue blob = (BLOBFileValue) val.internalValue();
InputStream in = blob.getStream();
StringWriter writer = new StringWriter();
try {
Base64.encode(in, writer);
in.close();
writer.close();
} catch (IOException ioe) {
// check if the exception wraps a SAXException
Throwable t = ioe.getCause();
if (t != null && t instanceof SAXException) {
throw (SAXException) t;
} else {
throw new SAXException(ioe);
}
}
attrValue = writer.toString();
}
} else {
attrValue = val.toJCRValue(nsReg).getString();
}
attrs.addAttribute(propName.getNamespaceURI(),
propName.getLocalName(), propName.toJCRName(nsReg), CDATA_TYPE, attrValue);
}
// start element (node)
contentHandler.startElement(name.getNamespaceURI(), name.getLocalName(),
elemName, attrs);
}
}
/**
* @see AbstractSAXEventGenerator#leaving(NodeState, QName, int)
*/
protected void leaving(NodeState state, QName name, int level)
throws RepositoryException, SAXException {
if (name.equals(NODENAME_XMLTEXT)) {
// the node represents xml character data
// (already processed in leavingProperties(NodeState, QName, int)
return;
}
// element name
String elemName;
if (state.getParentUUIDs().size() == 0) {
// root node needs a name
elemName = NODENAME_ROOT.toJCRName(nsReg);
} else {
elemName = name.toJCRName(nsReg);
}
// end element (node)
contentHandler.endElement(name.getNamespaceURI(), name.getLocalName(),
elemName);
}
/**
* @see AbstractSAXEventGenerator#entering(PropertyState, int)
*/
protected void entering(PropertyState state, int level)
throws RepositoryException, SAXException {
// collect property state in temporary list (will be processed in
leavingProperties(NodeState, QName, int)
InternalValue[] values = state.getValues();
if (values != null && values.length > 0) {
if (values.length != 1) {
throw new InvalidSerializedDataException("unable to serialize
multi-valued property in document view: " + state.getName().toJCRName(nsReg));
}
if (values[0] != null) {
props.add(state);
}
}
}
/**
* @see AbstractSAXEventGenerator#leaving(PropertyState, int)
*/
protected void leaving(PropertyState state, int level)
throws RepositoryException, SAXException {
// nop
}
}
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