package org.apache.sling.scripting.jst;
import java.io.PrintWriter;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.Property;
import javax.jcr.PropertyIterator;
import javax.jcr.RepositoryException;
import javax.jcr.Value;
import org.apache.sling.api.resource.Resource;
public class HtmlContentRenderer {
// TODO make this configurable
private static final String BREADCRUMB_PREFIX = "/content/";
public void render(PrintWriter pw, Resource r, Node n, String title)
throws RepositoryException {
pw.print("<h1 class='title'>");
pw.print(escape(title));
pw.println("</h1>");
renderBreadcrumbs(pw, n);
renderChildNodes(pw, n);
for (PropertyIterator pi = n.getProperties(); pi.hasNext();) {
final Property p = pi.nextProperty();
if(displayProperty(p.getName())) {
renderPropertyValue(pw, p);
}
}
}
protected void renderBreadcrumbs(PrintWriter pw, Node n) throws RepositoryException {
final String path = n.getPath();
pw.println("<div class='breadcrumbs'>");
if (path.startsWith(BREADCRUMB_PREFIX) ) {
final String [] crumbs = path.substring(BREADCRUMB_PREFIX.length()).split("/");
// omit the last path element when iterating, it's this node's name
for(int i=0; i < crumbs.length - 1; i++) {
final String c = crumbs[i];
pw.print("<a href='");
pw.print(getDotDots(i, crumbs.length));
pw.print(c);
pw.print("'>");
pw.print(c);
pw.println("</a>");
}
}
pw.println("</div>");
}
protected String getDotDots(int start, int len) {
final StringBuffer sb = new StringBuffer();
for(int i=start; i < len - 1; i++) {
sb.append("../");
}
return sb.toString();
}
protected void renderChildNodes(PrintWriter pw, Node parent) throws RepositoryException {
pw.println("<div class='childnodes'>");
final String prefix = parent.getName() + "/";
final NodeIterator it = parent.getNodes();
while(it.hasNext()) {
final Node kid = it.nextNode();
pw.print("<a href='");
pw.print(prefix);
pw.print(kid.getName());
pw.print("'>");
pw.print(kid.getName());
pw.println("</a>");
}
pw.println("</div>");
}
protected void renderPropertyValue(PrintWriter pw, Property p)
throws RepositoryException {
pw.print("<div class='" + p.getName() + "'>");
if (p.getDefinition().isMultiple()) {
Value[] values = p.getValues();
pw.print('[');
for (int i = 0; i < values.length; i++) {
if (i > 0) {
pw.print(", ");
}
pw.print(escape(values[i].getString()));
}
pw.print(']');
} else {
pw.print(escape(p.getValue().getString()));
}
pw.println("</div>");
}
protected String escape(String str) {
final StringBuffer sb = new StringBuffer();
for(int i = 0; i < str.length(); i++) {
final char c = str.charAt(i);
if(c == '<') {
sb.append("<");
} else if(c == '>') {
sb.append(">");
} else if(c == '&') {
sb.append("&");
} else {
sb.append(c);
}
}
return sb.toString();
}
protected boolean displayProperty(String name) {
return !name.startsWith("jcr:") && !name.startsWith("sling:");
}
}