+package org.argeo.docbook;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.RepositoryException;
+import javax.jcr.nodetype.NodeType;
+
+import org.argeo.docbook.ui.DocBookNames;
+import org.argeo.docbook.ui.DocBookTypes;
+import org.argeo.entity.EntityNames;
+import org.argeo.entity.EntityType;
+import org.argeo.jcr.Jcr;
+import org.argeo.jcr.JcrException;
+import org.argeo.jcr.JcrUtils;
+import org.argeo.jcr.JcrxApi;
+
+/** Utilities around DocBook. */
+public class DbkUtils {
+ public static String getTitle(Node node) {
+ return JcrxApi.getXmlValue(node, DocBookTypes.TITLE);
+ }
+
+ public static void setTitle(Node node, String txt) {
+ try {
+ Node titleNode = JcrUtils.getOrAdd(node, DocBookTypes.TITLE, DocBookTypes.TITLE);
+ JcrxApi.setXmlValue(node, titleNode, txt);
+ } catch (RepositoryException e) {
+ throw new JcrException("Cannot add empty paragraph to " + node, e);
+ }
+ }
+
+ public static Node getMetadata(Node infoContainer) {
+ try {
+ if (!infoContainer.hasNode(DocBookTypes.INFO))
+ return null;
+ Node info = infoContainer.getNode(DocBookTypes.INFO);
+ if (!info.hasNode(EntityType.local.get()))
+ return null;
+ return info.getNode(EntityType.local.get());
+ } catch (RepositoryException e) {
+ throw new JcrException("Cannot retrieve metadata from " + infoContainer, e);
+ }
+ }
+
+ public static Node getChildByRole(Node parent, String role) {
+ try {
+ NodeIterator baseSections = parent.getNodes();
+ while (baseSections.hasNext()) {
+ Node n = baseSections.nextNode();
+ String r = Jcr.get(n, DocBookNames.DBK_ROLE);
+ if (r != null && r.equals(role))
+ return n;
+ }
+ return null;
+ } catch (RepositoryException e) {
+ throw new JcrException("Cannot get child from " + parent + " with role " + role, e);
+ }
+ }
+
+ public static Node addParagraph(Node node, String txt) {
+ try {
+ Node para = node.addNode(DocBookTypes.PARA, DocBookTypes.PARA);
+ JcrxApi.setXmlValue(node, para, txt);
+ return para;
+ } catch (RepositoryException e) {
+ throw new JcrException("Cannot add empty paragraph to " + node, e);
+ }
+ }
+
+ public static Node insertImageAfter(Node sibling) {
+ try {
+ Node parent = sibling.getParent();
+ Node mediaNode = parent.addNode(DocBookTypes.MEDIAOBJECT, DocBookTypes.MEDIAOBJECT);
+ // TODO optimise?
+ parent.orderBefore(mediaNode.getName() + "[" + mediaNode.getIndex() + "]",
+ sibling.getName() + "[" + sibling.getIndex() + "]");
+ parent.orderBefore(sibling.getName() + "[" + sibling.getIndex() + "]",
+ mediaNode.getName() + "[" + mediaNode.getIndex() + "]");
+
+ Node imageNode = mediaNode.addNode(DocBookTypes.IMAGEOBJECT, DocBookTypes.IMAGEOBJECT);
+ Node infoNode = imageNode.addNode(DocBookTypes.INFO, DocBookTypes.INFO);
+ Node imageDataNode = JcrUtils.copyBytesAsFile(infoNode, EntityType.box.get(), new byte[0]);
+ imageDataNode.addMixin(EntityType.box.get());
+ imageDataNode.setProperty(EntityNames.SVG_WIDTH, 0);
+ imageDataNode.setProperty(EntityNames.SVG_LENGTH, 0);
+ imageDataNode.addMixin(NodeType.MIX_MIMETYPE);
+ return imageDataNode;
+ } catch (RepositoryException e) {
+ throw new JcrException("Cannot insert empty image after " + sibling, e);
+ }
+ }
+
+ /** Singleton. */
+ private DbkUtils() {
+ }
+}