Merge remote-tracking branch 'origin/unstable' into testing
[gpl/argeo-suite.git] / org.argeo.publishing.ui / src / org / argeo / docbook / ui / DbkTextInterpreter.java
diff --git a/org.argeo.publishing.ui/src/org/argeo/docbook/ui/DbkTextInterpreter.java b/org.argeo.publishing.ui/src/org/argeo/docbook/ui/DbkTextInterpreter.java
deleted file mode 100644 (file)
index c853535..0000000
+++ /dev/null
@@ -1,283 +0,0 @@
-package org.argeo.docbook.ui;
-
-import static org.argeo.docbook.DbkType.para;
-import static org.argeo.docbook.DbkType.title;
-import static org.argeo.docbook.DbkUtils.isDbk;
-
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.StringReader;
-import java.nio.charset.StandardCharsets;
-import java.util.List;
-
-import javax.jcr.ImportUUIDBehavior;
-import javax.jcr.Item;
-import javax.jcr.Node;
-import javax.jcr.NodeIterator;
-import javax.jcr.Property;
-import javax.jcr.PropertyIterator;
-import javax.jcr.RepositoryException;
-import javax.xml.parsers.DocumentBuilderFactory;
-
-import org.apache.commons.io.IOUtils;
-import org.argeo.docbook.DbkAttr;
-import org.argeo.docbook.DbkType;
-import org.argeo.jcr.Jcr;
-import org.argeo.jcr.JcrException;
-
-/** Based on HTML with a few Wiki-like shortcuts. */
-public class DbkTextInterpreter implements TextInterpreter {
-       private DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
-
-       private String linkCssClass = DbkType.link.name();
-
-       @Override
-       public void write(Item item, String content) {
-               try {
-                       if (item instanceof Node) {
-                               Node node = (Node) item;
-                               if (isDbk(node, para) || isDbk(node, title)) {
-                                       String raw = convertToStorage(node, content);
-                                       validateBeforeStoring(raw);
-
-                                       String jcrUuid = node.getIdentifier();
-//                                     if (node.hasProperty(Property.JCR_UUID))
-//                                             jcrUuid = node.getProperty(Property.JCR_UUID).getString();
-//                                     else {
-//                                             // TODO use time based
-//                                             jcrUuid = UUID.randomUUID().toString();
-//                                             node.setProperty(Property.JCR_UUID, jcrUuid);
-//                                             node.getSession().save();
-//                                     }
-
-                                       StringBuilder namespaces = new StringBuilder();
-                                       namespaces.append(" xmlns:dbk=\"http://docbook.org/ns/docbook\"");
-                                       namespaces.append(" xmlns:jcr=\"http://www.jcp.org/jcr/1.0\"");
-                                       namespaces.append(" xmlns:xlink=\"http://www.w3.org/1999/xlink\"");
-                                       raw = "<" + node.getName() + " jcr:uuid=\"" + jcrUuid + "\"" + namespaces + ">" + raw + "</"
-                                                       + node.getName() + ">";
-//                                     System.out.println(raw);
-                                       try (InputStream in = new ByteArrayInputStream(raw.getBytes(StandardCharsets.UTF_8))) {
-                                               node.getSession().importXML(node.getParent().getPath(), in,
-                                                               ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
-                                               // node.getSession().save();
-                                       } catch (IOException e) {
-                                               throw new IllegalArgumentException("Cannot parse raw content of " + node, e);
-                                       }
-
-//                                     try {
-//                                             DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
-//                                             Document document;
-//                                             try (Reader in = new StringReader(raw)) {
-//                                                     document = documentBuilder.parse(new InputSource(in));
-//                                             }
-//                                             NodeList nl = document.getChildNodes();
-//                                             for (int i = 0; i < nl.getLength(); i++) {
-//                                                     org.w3c.dom.Node n = nl.item(i);
-//                                                     if (node instanceof Text) {
-//
-//                                                     }
-//                                             }
-//                                     } catch (ParserConfigurationException | SAXException | IOException e) {
-//                                             throw new IllegalArgumentException("Cannot parse raw content of " + node, e);
-//                                     }
-
-//                                     Node jcrText;
-//                                     if (!node.hasNode(Jcr.JCR_XMLTEXT))
-//                                             jcrText = node.addNode(Jcr.JCR_XMLTEXT, JcrxType.JCRX_XMLTEXT);
-//                                     else
-//                                             jcrText = node.getNode(Jcr.JCR_XMLTEXT);
-//                                     jcrText.setProperty(Jcr.JCR_XMLCHARACTERS, raw);
-                               } else {
-                                       throw new IllegalArgumentException("Don't know how to interpret " + node);
-                               }
-                       } else {// property
-                               Property property = (Property) item;
-                               property.setValue(content);
-                       }
-                       // item.getSession().save();
-               } catch (RepositoryException e) {
-                       throw new JcrException("Cannot set content on " + item, e);
-               }
-       }
-
-       @Override
-       public String read(Item item) {
-               try {
-                       String raw = raw(item);
-                       return convertFromStorage(item, raw);
-               } catch (RepositoryException e) {
-                       throw new JcrException("Cannot get " + item + " for edit", e);
-               }
-       }
-
-       @Override
-       public String raw(Item item) {
-               try {
-                       item.getSession().refresh(true);
-                       if (item instanceof Node) {
-                               Node node = (Node) item;
-                               if (isDbk(node, para) || isDbk(node, title)) {
-                                       StringBuilder sb = new StringBuilder();
-                                       readXml(node, sb);
-//                                     NodeIterator nit = node.getNodes();
-//                                     while (nit.hasNext()) {
-//                                             Node child = nit.nextNode();
-//                                             if (child.getName().equals(Jcr.JCR_XMLTEXT)) {
-//                                                     Node jcrText = node.getNode(Jcr.JCR_XMLTEXT);
-//                                                     String txt = jcrText.getProperty(Jcr.JCR_XMLCHARACTERS).getString();
-//                                                     // TODO make it more robust
-//                                                     // txt = txt.replace("\n", "").replace("\t", "");
-//                                                     txt = txt.replace("\t", "  ");
-//                                                     sb.append(txt);
-//                                             } else {
-//                                                     try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
-//                                                             child.getSession().exportDocumentView(child.getPath(), out, true, false);
-//                                                             sb.append(new String(out.toByteArray(), StandardCharsets.UTF_8));
-//                                                     } catch (IOException e) {
-//                                                             throw new IllegalStateException("Cannot export " + child, e);
-//                                                     }
-//                                             }
-//                                     }
-                                       return sb.toString();
-                               } else {
-                                       throw new IllegalArgumentException("Don't know how to interpret " + node);
-                               }
-                       } else {// property
-                               Property property = (Property) item;
-                               return property.getString();
-                       }
-               } catch (RepositoryException e) {
-                       throw new JcrException("Cannot get " + item + " content", e);
-               }
-       }
-
-       private void readXml(Node node, StringBuilder sb) throws RepositoryException {
-               NodeIterator nit = node.getNodes();
-               while (nit.hasNext()) {
-                       Node child = nit.nextNode();
-                       if (child.getName().equals(Jcr.JCR_XMLTEXT)) {
-                               String txt = child.getProperty(Jcr.JCR_XMLCHARACTERS).getString();
-                               // TODO make it more robust
-                               // txt = txt.replace("\n", "").replace("\t", "");
-                               txt = txt.replace("\t", "  ");
-                               sb.append(txt);
-                       } else {
-                               sb.append('<').append(child.getName());
-                               PropertyIterator pit = child.getProperties();
-                               properties: while (pit.hasNext()) {
-                                       Property p = pit.nextProperty();
-                                       if (p.getName().startsWith("jcr:"))
-                                               continue properties;
-                                       sb.append(' ').append(p.getName()).append("=\"").append(p.getString()).append('\"');
-                               }
-                               sb.append('>');
-                               readXml(child, sb);
-//                             try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
-//                                     child.getSession().exportDocumentView(child.getPath(), out, true, false);
-//                                     sb.append(new String(out.toByteArray(), StandardCharsets.UTF_8));
-//                             } catch (IOException e) {
-//                                     throw new IllegalStateException("Cannot export " + child, e);
-//                             }
-                               sb.append("</").append(child.getName()).append('>');
-                       }
-               }
-       }
-
-       private void readAsSimpleHtml(Node node, StringBuilder sb) throws RepositoryException {
-               NodeIterator nit = node.getNodes();
-               while (nit.hasNext()) {
-                       Node child = nit.nextNode();
-                       if (child.getName().equals(Jcr.JCR_XMLTEXT)) {
-                               String txt = child.getProperty(Jcr.JCR_XMLCHARACTERS).getString();
-                               // TODO make it more robust
-                               // txt = txt.replace("\n", "").replace("\t", "");
-                               txt = txt.replace("\t", "  ");
-                               String html = textToSimpleHtml(txt);
-                               sb.append(html);
-                       } else if (child.getName().equals(DbkType.link.get())) {
-                               if (child.hasProperty(DbkAttr.XLINK_HREF)) {
-                                       String href = child.getProperty(DbkAttr.XLINK_HREF).getString();
-                                       // TODO deal with other forbidden XML characters?
-                                       href = href.replace("&", "&amp;");
-                                       sb.append("<a class='" + linkCssClass + "' href='").append(href).append("'>");
-                                       readAsSimpleHtml(child, sb);
-                                       sb.append("</a>");
-                               }
-                       } else {
-                               // ignore
-                       }
-               }
-       }
-
-       private String textToSimpleHtml(String raw) {
-               // FIXME the saved data should be corrected instead.
-               if (raw.indexOf('&') >= 0) {
-                       raw = raw.replace("&", "&amp;");
-               }
-               if (raw.indexOf('<') >= 0) {
-                       raw = raw.replace("<", "&lt;");
-               }
-               if (raw.indexOf('>') >= 0) {
-                       raw = raw.replace(">", "&gt;");
-               }
-               if (raw.indexOf('\"') >= 0) {
-                       raw = raw.replace("\"", "&quot;");
-               }
-               if (raw.indexOf('\'') >= 0) {
-                       raw = raw.replace("\'", "&apos;");
-               }
-//             raw = "<span style='text-align:justify'>" + raw + "</span>";
-               if (raw.length() == 0)
-                       return raw;
-               try (StringReader reader = new StringReader(raw)) {
-                       List<String> lines = IOUtils.readLines(reader);
-                       if (lines.size() == 1)
-                               return lines.get(0);
-                       StringBuilder sb = new StringBuilder(raw.length() + lines.size() * BR_LENGTH);
-                       for (int i = 0; i < lines.size(); i++) {
-                               if (i != 0)
-                                       sb.append("<br/>");
-                               sb.append(lines.get(i));
-                       }
-                       return sb.toString();
-               } catch (IOException e) {
-                       throw new RuntimeException(e);
-               }
-       }
-
-       final static int BR_LENGTH = "<br/>".length();
-
-       public String readSimpleHtml(Item item) {
-               try {
-                       StringBuilder sb = new StringBuilder();
-//                     sb.append("<div style='text-align: justify;'>");
-                       readAsSimpleHtml((Node) item, sb);
-//                     sb.append("</div>");
-//                     System.out.println(sb);
-                       return sb.toString();
-               } catch (RepositoryException e) {
-                       throw new JcrException("Cannot convert " + item + " to simple HTML", e);
-               }
-       }
-
-       // EXTENSIBILITY
-       /**
-        * To be overridden, in order to make sure that only valid strings are being
-        * stored.
-        */
-       protected void validateBeforeStoring(String raw) {
-       }
-
-       /** To be overridden, in order to support additional formatting. */
-       protected String convertToStorage(Item item, String content) throws RepositoryException {
-               return content;
-
-       }
-
-       /** To be overridden, in order to support additional formatting. */
-       protected String convertFromStorage(Item item, String content) throws RepositoryException {
-               return content;
-       }
-}