X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=publishing%2Forg.argeo.publishing.ui%2Fsrc%2Forg%2Fargeo%2Fdocbook%2FDbkUtils.java;h=b654c73178646597e50badabdbe2c6e13989a725;hb=29670a41b526ec16411eaf7920b30752f0ee6883;hp=29e29cda8faf85c121ff1137093ea44cd1847372;hpb=70010c4afc5799622fcad5b075740d94da074798;p=gpl%2Fargeo-suite.git

diff --git a/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
index 29e29cd..b654c73 100644
--- a/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
+++ b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
@@ -2,17 +2,29 @@ package org.argeo.docbook;
 
 import static org.argeo.docbook.DbkType.para;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import javax.jcr.ImportUUIDBehavior;
 import javax.jcr.Node;
 import javax.jcr.NodeIterator;
 import javax.jcr.RepositoryException;
 
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 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 {
+	private final static Log log = LogFactory.getLog(DbkUtils.class);
+
 	/** Get or add a DocBook element. */
 	public static Node getOrAddDbk(Node parent, DbkType child) {
 		try {
@@ -41,6 +53,16 @@ public class DbkUtils {
 		return Jcr.getName(node).equals(type.get());
 	}
 
+	/** Whether this node is a DocBook type. */
+	public static boolean isDbk(Node node) {
+		String name = Jcr.getName(node);
+		for (DbkType type : DbkType.values()) {
+			if (name.equals(type.get()))
+				return true;
+		}
+		return false;
+	}
+
 	public static String getTitle(Node node) {
 		return JcrxApi.getXmlValue(node, DbkType.title.get());
 	}
@@ -84,13 +106,34 @@ public class DbkUtils {
 		return p;
 	}
 
-	public static Node insertImageAfter(Node sibling) {
+	/**
+	 * Removes a paragraph if it empty. The sesison is not saved.
+	 * 
+	 * @return true if the paragraph was empty and it was removed
+	 */
+	public static boolean removeIfEmptyParagraph(Node node) {
 		try {
-
-			// FIXME make it more robust
-			if (DbkType.imagedata.get().equals(sibling.getName())) {
-				sibling = sibling.getParent().getParent();
+			if (isDbk(node, DbkType.para)) {
+				NodeIterator nit = node.getNodes();
+				if (!nit.hasNext())
+					return false;// log this unexpected situation?
+				Node first = nit.nextNode();
+				if (nit.hasNext())
+					return false;
+				String str = JcrxApi.getXmlValue(first);
+				if (str != null && str.trim().equals("")) {
+					node.remove();
+					return true;
+				}
 			}
+			return false;
+		} catch (RepositoryException e) {
+			throw new JcrException("Cannot remove possibly empty paragraph", e);
+		}
+	}
+
+	public static Node insertImageAfter(Node sibling) {
+		try {
 
 			Node parent = sibling.getParent();
 			Node mediaNode = addDbk(parent, DbkType.mediaobject);
@@ -113,13 +156,51 @@ public class DbkUtils {
 //			// TODO make it more robust and generic
 //			String fileRef = mediaNode.getName();
 //			imageDataNode.setProperty(DocBookNames.DBK_FILEREF, fileRef);
-			return imageDataNode;
+			return mediaNode;
 		} catch (RepositoryException e) {
 			throw new JcrException("Cannot insert empty image after " + sibling, e);
 		}
 	}
 
+	public static void exportXml(Node node, OutputStream out) throws IOException {
+		try {
+			node.getSession().exportDocumentView(node.getPath(), out, false, false);
+		} catch (RepositoryException e) {
+			throw new JcrException("Cannot export " + node + " to XML", e);
+		}
+	}
+
+	public static void exportToFs(Node baseNode, DbkType type, Path directory) {
+		String fileName = Jcr.getName(baseNode) + ".dbk.xml";
+		Path filePath = directory.resolve(fileName);
+		Node docBookNode = Jcr.getNode(baseNode, type.get());
+		if (docBookNode == null)
+			throw new IllegalArgumentException("No " + type.get() + " under " + baseNode);
+		try {
+			Files.createDirectories(directory);
+			try (OutputStream out = Files.newOutputStream(filePath)) {
+				exportXml(docBookNode, out);
+			}
+			JcrUtils.copyFilesToFs(baseNode, directory, true);
+			if (log.isDebugEnabled())
+				log.debug("DocBook " + baseNode + " exported to " + filePath.toAbsolutePath());
+		} catch (IOException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	public static void importXml(Node baseNode, InputStream in) throws IOException {
+		try {
+			baseNode.getSession().importXML(baseNode.getPath(), in,
+					ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
+		} catch (RepositoryException e) {
+			throw new JcrException("Cannot import XML to " + baseNode, e);
+		}
+
+	}
+
 	/** Singleton. */
 	private DbkUtils() {
 	}
+
 }