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| package org.apache.xindice.webadmin.viewer.components; |
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| import java.io.IOException; |
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| import java.io.Writer; |
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| import javax.servlet.ServletException; |
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| import javax.servlet.http.HttpServletRequest; |
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| import javax.servlet.http.HttpServletResponse; |
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| import org.w3c.dom.Node; |
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| import org.apache.xindice.core.Collection; |
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| import org.apache.xindice.core.DBException; |
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| import org.apache.xindice.core.data.NodeSet; |
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| import org.apache.xindice.webadmin.viewer.*; |
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| import org.apache.xindice.webadmin.viewer.HtmlViewerComponent; |
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| import org.apache.xindice.xml.NamespaceMap; |
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| import org.apache.commons.logging.Log; |
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| import org.apache.commons.logging.LogFactory; |
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| public class XUpdateCollectionViewer extends HtmlViewerComponent implements HtmlCollectionViewer { |
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| private static final Log log = LogFactory.getLog(XUpdateCollectionViewer.class); |
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| public void execute(HttpServletRequest req, HttpServletResponse res, Collection col)
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| throws ServletException, IOException { |
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| String path = col.getCanonicalName();
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| String title = "XUpdate for " + path;
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| Writer output = startViewer(title, path, res);
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| String xupdate = req.getParameter("xupdate");
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| if(xupdate == null) {
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| xupdate = "";
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| } else if(xupdate.length() > 0) {
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| |
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| try {
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| NodeSet result = col.queryCollection("XUpdate", xupdate, new NamespaceMap());
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| printResult(result, output);
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| } catch (DBException e) { |
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| log.error(e);
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| } |
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| } |
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| printStartTable(title, output);
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| printStartSingleTableBox(output);
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| output.write(XUPDATE_FORM_START);
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| output.write(xupdate);
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| output.write(XUPDATE_FORM_END);
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| printEndSingleTableBox(output);
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| printEndTable(output);
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| output.write("<br />\n");
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| printStartTable("Examples", output);
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| printStartSingleTableBox(output);
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| output.write(XUPDATE_EXAMPLES);
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| printEndSingleTableBox(output);
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| printEndTable(output);
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| finishViewer(output);
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| } |
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| private void printResult(NodeSet result, Writer output) throws IOException {
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| if(result != null && result.hasMoreNodes()) {
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| Object node = result.getNextNode();
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| String modified;
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| if(node instanceof Node) {
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| modified = ((Node)node).getFirstChild().getNodeValue();
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| } else { |
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| modified = "Sorry something went wrong!";
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| } |
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| printStartTable("XUpdate Result", output);
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| printStartSingleTableBox(output);
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| output.write("Modified <b>"+modified+"</b> Nodes!\n");
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| printEndSingleTableBox(output);
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| printEndTable(output);
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| output.write("<br />\n");
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| } |
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| } |
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| private static final String XUPDATE_FORM_START = |
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| "<form action=\"\" method=\"post\"> \n" + |
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| "<table class=\"upload-form\"> \n" + |
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| "<tr><td> \n" + |
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| "<textarea name=\"xupdate\" cols=\"80\" rows=\"15\">\n" ; |
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| private static final String XUPDATE_FORM_END = |
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| "</textarea> \n" + |
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| "</td></tr><tr><td> \n" + |
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| "<input type=\"submit\" name=\"submit\" value=\"xupdate\" /> \n" + |
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| "</td></tr></table></form> \n"; |
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| |
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| private static final String XUPDATE_EXAMPLES = |
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| "<b>Basic XUpdate Insert Command</b>" + |
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| "<pre><xupdate:modifications version=\"1.0\" \n" + |
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| " xmlns:xupdate=\"http://www.xmldb.org/xupdate\"> \n\n" + |
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| " <xupdate:insert-after select=\"/addresses/address[1]\" > \n" + |
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| " <xupdate:element name=\"address\"> \n" + |
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| " <xupdate:attribute name=\"id\">2</xupdate:attribute> \n" + |
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| " <fullname>John Smith</fullname> \n" + |
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| " <born day='2' month='12' year='1974'/> \n" + |
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| " <country>Germany</country> \n" + |
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| " </xupdate:element> \n\n" + |
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| " </xupdate:insert-after> \n" + |
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| "</xupdate:modifications> \n" + |
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| " </pre>" + |
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| "<b>XUpdate Commands</b><ul>" + |
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| "<li><code>xupdate:insert-before</code> " + |
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| " - Inserts a new node in document order before the selected node.</li> \n" + |
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| "<li><code>xupdate:insert-after</code>" + |
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| " - Inserts a new node in document order after the selected node.</li> \n" + |
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| "<li><code>xupdate:update</code>" + |
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| " - Replaces all child nodes of the selected node with the specified nodes.</li> \n" + |
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| "<li><code>xupdate:append</code>" + |
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| " - Appends the specified node to the content of the selected node.</li> \n" + |
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| "<li><code>xupdate:remove</code>" + |
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| " - Remove the selected node</li> \n" + |
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| "<li><code>xupdate:rename</code>" + |
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| " - Renames the selected node</li> \n" + |
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| "<li><code>xupdate:variable</code>" + |
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| " - Defines a variable containing a node list that can be reused in later operations.</li> \n" + |
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| "</ul><b>XUpdate Node Construction</b><ul>" + |
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| "<li><code>xupdate:element</code>" + |
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| " - Creates a new element in the document.</li> \n" + |
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| "<li><code>xupdate:attribute</code>" + |
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| " - Creates a new attribute node associated with an <code>xupdate:element</code>.</li> \n" + |
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| "<li><code>xupdate:text</code>" + |
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| " - Creates a text content node in the document.</li> \n" + |
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| "<li><code>xupdate:processing-instruction</code>" + |
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| " - Creates a processing instruction node in the document.</li> \n" + |
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| "<li><code>xupdate:comment</code>" + |
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| " - Creates a new comment node in the document.</li> </ul>\n"; |
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| protected String getName() {
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| return "xupdate";
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| } |
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| } |