--- /dev/null
+package org.argeo.app.ui.docbook;
+
+import static org.argeo.app.docbook.DbkType.para;
+import static org.argeo.app.docbook.DbkType.title;
+import static org.argeo.app.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.app.docbook.DbkAttr;
+import org.argeo.app.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("&", "&");
+ 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("&", "&");
+ }
+ if (raw.indexOf('<') >= 0) {
+ raw = raw.replace("<", "<");
+ }
+ if (raw.indexOf('>') >= 0) {
+ raw = raw.replace(">", ">");
+ }
+ if (raw.indexOf('\"') >= 0) {
+ raw = raw.replace("\"", """);
+ }
+ if (raw.indexOf('\'') >= 0) {
+ raw = raw.replace("\'", "'");
+ }
+// 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;
+ }
+}
projects / gpl / argeo-suite.git / blobdiff