[Yanel-commits] rev 56610 - public/yanel/trunk/src/contributions/resources/data-repo-sitetree/src/java/org/wyona/yanel/impl/resources/navigation
michi at wyona.com
michi at wyona.com
Tue Feb 8 09:18:21 CET 2011
Author: michi
Date: 2011-02-08 09:18:21 +0100 (Tue, 08 Feb 2011)
New Revision: 56610
Modified:
public/yanel/trunk/src/contributions/resources/data-repo-sitetree/src/java/org/wyona/yanel/impl/resources/navigation/DataRepoSitetreeResource.java
Log:
thanks to Cedric the sitetree is now using DOM instead of string builder
Modified: public/yanel/trunk/src/contributions/resources/data-repo-sitetree/src/java/org/wyona/yanel/impl/resources/navigation/DataRepoSitetreeResource.java
===================================================================
--- public/yanel/trunk/src/contributions/resources/data-repo-sitetree/src/java/org/wyona/yanel/impl/resources/navigation/DataRepoSitetreeResource.java 2011-02-08 07:48:47 UTC (rev 56609)
+++ public/yanel/trunk/src/contributions/resources/data-repo-sitetree/src/java/org/wyona/yanel/impl/resources/navigation/DataRepoSitetreeResource.java 2011-02-08 08:18:21 UTC (rev 56610)
@@ -1,182 +1,185 @@
-/*
- * Copyright 2006 Wyona
+/*-
+ * Copyright 2011 Wyona
*/
package org.wyona.yanel.impl.resources.navigation;
-import javax.xml.transform.Transformer;
import org.wyona.yanel.core.navigation.Node;
import org.wyona.yanel.core.navigation.Sitetree;
import org.wyona.yanel.impl.resources.BasicXMLResource;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
import org.apache.log4j.Logger;
+import java.io.InputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import javax.xml.transform.Transformer;
+
/**
- *
+ * Data repository site tree generator.
*/
public class DataRepoSitetreeResource extends BasicXMLResource {
-
private static Logger log = Logger.getLogger(DataRepoSitetreeResource.class);
/**
- *
+ * Get size.
+ * @see org.wyona.yanel.core.Resource
*/
- public DataRepoSitetreeResource() {
- }
-
- /**
- *
- */
+ @Override
public long getSize() throws Exception {
return -1;
}
/**
- *
+ * Does resource exist?
+ * @see org.wyona.yanel.core.Resource
*/
+ @Override
public boolean exists() throws Exception {
return true;
}
/**
- *
+ * Get content as XML.
+ * @param viewId Ignored by this function.
+ * @see org.wyona.yanel.impl.BasicXMLResource
*/
- public java.io.InputStream getContentXML(String viewId) throws Exception {
- StringBuffer sb = new StringBuffer("<?xml version=\"1.0\"?>");
- sb.append(getSitetreeAsXML());
- //sb.append(getSitetreeAsXML(getPath().toString()));
+ @Override
+ public InputStream getContentXML(String viewId) throws Exception {
+ Document doc = null;
- return new java.io.StringBufferInputStream(sb.toString());
+ try {
+ doc = org.wyona.commons.xml.XMLHelper.createDocument(null, "sitetree");
+ } catch (Exception e) {
+ throw new Exception(e.getMessage(), e);
+ }
+
+ Element rootElement = doc.getDocumentElement();
+ getSitetreeAsXML(doc, rootElement);
+
+ ByteArrayOutputStream baout = new ByteArrayOutputStream();
+ org.wyona.commons.xml.XMLHelper.writeDocument(doc, baout);
+ return new ByteArrayInputStream(baout.toByteArray());
}
/**
- * Get sitetree as XML
+ * Get sitetree as XML.
+ * @param doc The result document.
+ * @param root The root element of the result document.
*/
- private String getSitetreeAsXML() throws Exception {
+ private void getSitetreeAsXML(Document doc, Element root) throws Exception {
+ // Get name4path parameter
String name4pathParameter = "path";
- if (getResourceConfigProperty("name4path-parameter") != null) {
+ if(getResourceConfigProperty("name4path-parameter") != null) {
name4pathParameter = getResourceConfigProperty("name4path-parameter");
}
- StringBuffer sb = new StringBuffer("<sitetree>");
- if (getEnvironment().getRequest().getParameter(name4pathParameter) != null) {
- sb.append(getNodeAsXML(request.getParameter(name4pathParameter)));
+
+ // Get node as XML.
+ if(getEnvironment().getRequest().getParameter(name4pathParameter) != null) {
+ getNodeAsXML(request.getParameter(name4pathParameter), doc, root);
} else {
- sb.append(getNodeAsXML("/"));
+ getNodeAsXML("/", doc, root);
}
- // TODO: Sitetree generated out of RDF resources and statements
- /*
- com.hp.hpl.jena.rdf.model.Resource rootResource = getRealm().getSitetreeRootResource();
- sb.append(getNodeAsXML(rootResource));
- */
- sb.append("</sitetree>");
-
- return sb.toString();
}
/**
- * Get node as XML
+ * Get node as XML.
+ * @param doc The result document.
+ * @param root The root element of the result document.
*/
- private String getNodeAsXML(String path) {
+ private void getNodeAsXML(String path, Document doc, Element root) {
+ // Should we show all subnodes?
boolean showAllSubnodes = true;
+
try {
- if (getResourceConfigProperty("show-all-subnodes") != null) {
+ if(getResourceConfigProperty("show-all-subnodes") != null) {
showAllSubnodes = Boolean.valueOf(getResourceConfigProperty("show-all-subnodes")).booleanValue();
}
} catch (Exception e) {
- log.info("could not get property show-all-subnodes. falling back to show-all-subnodes=true.");
+ log.info("Could not get property show-all-subnodes. Falling back to default value (true).");
}
+
String showAllSubnodesParameter = getParameterAsString("show-all-subnodes");
- if (showAllSubnodesParameter != null && Boolean.valueOf(showAllSubnodesParameter).booleanValue()) {
+ if(showAllSubnodesParameter != null && Boolean.valueOf(showAllSubnodesParameter).booleanValue()) {
showAllSubnodes = true;
}
- //private String getNodeAsXML(com.hp.hpl.jena.rdf.model.Resource resource) {
- //log.debug("Path: " + path);
+ // Get nodes from repository
Sitetree sitetree = getRealm().getRepoNavigation();
Node node = sitetree.getNode(getRealm(), path);
- StringBuilder sb = new StringBuilder("");
- // TODO: Check for statements "parentOf" for this resource
- /*
- Statement[] st = resource.getStatements("parentOf");
- if (st.length > 0) {
- for (int i = 0; i < st.length; i++) {
- Resource child = st.getObject();
- URL url = getReal().getURLBuilder(child);
- }
- } else {
- // Is not a collection, there are no children
- }
- */
+ // Construct XML.
+ if(node != null) {
+ if(node.isCollection()) {
+ Element collectionElement = null;
- if (node != null) {
- if (node.isCollection()) {
- if (showAllSubnodes) {
- sb.append("<collection path=\"" + path + "\" name=\"" + node.getName() + "\">");
- // TODO: There seems to be a problem re special characters
- sb.append("<label><![CDATA[" + node.getName() + "]]></label>");
- //sb.append("<label><![CDATA[" + node.getLabel() + "]]></label>");
+ if(showAllSubnodes) {
+ collectionElement = (Element) root.appendChild(doc.createElement("collection"));
+ collectionElement.setAttribute("path", node.getPath());
+ collectionElement.setAttribute("name", node.getName());
+ Element labelElement = (Element) collectionElement.appendChild(doc.createElement("label"));
+ labelElement.appendChild(doc.createTextNode(node.getName()));
}
+
+ // Get all children
Node[] children = node.getChildren();
- for (int i = 0; i < children.length; i++) {
- String childPath = path + "/" + children[i].getName();
- if (path.equals("/")) {
- childPath = path + children[i].getName();
- }
- //log.debug("Child path: " + childPath);
-
- if (children[i].isCollection()) {
- if (!showAllSubnodes) {
- sb.append("<collection path=\"" + childPath + "\" name=\"" + children[i].getName() + "\">");
- // TODO: ...
- sb.append("<label><![CDATA[" +children[i].getName() + "]]></label>");
- //sb.append("<label><![CDATA[" + children[i].getLabel() + "]]></label>");
- sb.append("</collection>");
+ for(Node child : children) {
+ if(child.isCollection()) {
+ if(collectionElement == null) {
+ collectionElement = (Element) root.appendChild(doc.createElement("collection"));
+ collectionElement.setAttribute("path", node.getPath());
+ collectionElement.setAttribute("name", node.getName());
+ Element labelElement = (Element) collectionElement.appendChild(doc.createElement("label"));
+ labelElement.appendChild(doc.createTextNode(node.getName()));
} else {
- sb.append(getNodeAsXML(childPath));
+ getNodeAsXML(child.getPath(), doc, collectionElement);
}
- //sb.append(getNodeAsXML(children[i].getPath()));
- } else if (children[i].isResource()) {
- sb.append("<resource path=\"" + childPath + "\" name=\"" + children[i].getName() + "\">");
- //sb.append("<resource path=\"" + children[i].getPath() + "\" name=\"" + children[i].getName() + "\">");
- // TODO ...
- sb.append("<label><![CDATA[" + children[i].getName() + "]]></label>");
- //sb.append("<label><![CDATA[" + children[i].getLabel() + "]]></label>");
- sb.append("</resource>");
+ } else if(child.isResource()) {
+ Element resourceElement = (Element) root.appendChild(doc.createElement("resource"));
+ resourceElement.setAttribute("path", child.getPath());
+ resourceElement.setAttribute("name", child.getName());
+ Element labelElement = (Element) resourceElement.appendChild(doc.createElement("label"));
+ labelElement.appendChild(doc.createTextNode(child.getName()));
} else {
- sb.append("<neither-resource-nor-collection path=\"" + childPath + "\" name=\"" + children[i].getName() + "\"/>");
- //sb.append("<neither-resource-nor-collection path=\"" + children[i].getPath() + "\" name=\"" + children[i].getName() + "\"/>");
+ Element nothingElement = (Element) root.appendChild(doc.createElement("neither-resource-nor-collection"));
+ nothingElement.setAttribute("path", child.getPath());
+ nothingElement.setAttribute("name", child.getName());
}
}
- if (showAllSubnodes) {
- sb.append("</collection>");
- }
} else {
- sb.append("<resource path=\"" + path + "\" name=\"" + node.getName() + "\">");
- // TODO ...
- sb.append("<label><![CDATA[" + node.getName() + "]]></label>");
- //sb.append("<label><![CDATA[" + node.getLabel() + "]]></label>");
- sb.append("</resource>");
+ Element resourceElement = (Element) root.appendChild(doc.createElement("resource"));
+ resourceElement.setAttribute("path", node.getPath());
+ resourceElement.setAttribute("name", node.getName());
+ Element labelElement = (Element) resourceElement.appendChild(doc.createElement("label"));
+ labelElement.appendChild(doc.createTextNode(node.getName()));
}
} else {
- String errorMessage = "node is null for path: " + path;
- sb.append("<exception>" + errorMessage + "</exception>");
+ String errorMessage = "Node is null! (For path: " + path + ")";
+ Element exceptionElement = (Element) root.appendChild(doc.createElement("resource"));
+ exceptionElement.appendChild(doc.createTextNode(errorMessage));
log.error(errorMessage);
}
- return sb.toString();
}
+ /**
+ * Pass transformer parameters.
+ */
+ @Override
protected void passTransformerParameters(Transformer transformer) throws Exception {
super.passTransformerParameters(transformer);
+
try {
String resourceConfigPropertyDomain = getResourceConfigProperty("domain");
- if (resourceConfigPropertyDomain != null) {
+ if(resourceConfigPropertyDomain != null) {
transformer.setParameter("domain", resourceConfigPropertyDomain);
}
- } catch (Exception e) {
- log.error("could not get property domain. domain will not be availabel within transformer chain. " + e.getMessage(), e);
+ } catch(Exception e) {
+ log.error("Could not get property domain. Domain will not be available within transformer chain.");
+ log.error(e.getMessage(), e);
}
}
}
More information about the Yanel-commits
mailing list