[ http://jira.codehaus.org/browse/DISPL-24?page=comments#action_42124 ]
Steve McLeod commented on DISPL-24: ----------------------------------- I have implemented an export class which formats the XML as desired. A column's name is converted to an XML tag as follows: 1. Make the first letter of each word uppercase, all other letters lowercase 2. Strip all white space, including between words. So a column called "Person ID" becomes "PersonId" I call it EnhancedXmlView and the source code for the class follows: /** * Licensed under the Artistic License; you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * * http://displaytag.sourceforge.net/license.html * * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ package org.displaytag.export; import org.apache.commons.lang.StringEscapeUtils; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.WordUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.displaytag.model.*; import javax.servlet.jsp.JspException; import java.io.IOException; import java.io.Writer; import java.util.Iterator; import java.util.List; import java.util.ArrayList; /** * Export view for xml exporting. Column names are used to make tag names. * * @author Steve McLeod */ public class EnhancedXmlView implements TextExportView { /** * logger. */ private Log log = LogFactory.getLog(this.getClass()); /** * TableModel to render. */ private TableModel model; /** * export full list? */ private boolean exportFull; /** * decorate export? */ private boolean decorated; private List headerTitles = new ArrayList(); /** * @see ExportView#setParameters(org.displaytag.model.TableModel, boolean, boolean, boolean) */ public void setParameters(TableModel tableModel, boolean exportFullList, boolean includeHeader, boolean decorateValues) { this.model = tableModel; this.exportFull = exportFullList; this.decorated = decorateValues; } /** * @see org.displaytag.export.BaseExportView#getRowStart() */ protected String getRowStart() { return "<row>\n"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getRowEnd() */ protected String getRowEnd() { return "</row>\n"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getCellStart() */ protected String getCellStart(String columnName) { return "<" + columnName + ">"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getCellEnd() */ protected String getCellEnd(String columnName) { return "</" + columnName + ">\n"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getDocumentStart() */ protected String getDocumentStart() { return "<?xml version=\"1.0\"?>\n<table>\n"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getDocumentEnd() */ protected String getDocumentEnd() { return "</table>\n"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#getAlwaysAppendCellEnd() */ protected boolean getAlwaysAppendCellEnd() { return true; } /** * @see org.displaytag.export.BaseExportView#getAlwaysAppendRowEnd() */ protected boolean getAlwaysAppendRowEnd() { return true; } /** * @see org.displaytag.export.ExportView#getMimeType() */ public String getMimeType() { return "text/xml"; //$NON-NLS-1$ } /** * @see org.displaytag.export.BaseExportView#escapeColumnValue(java.lang.Object) */ protected String escapeColumnValue(Object value) { if (value != null) { return StringEscapeUtils.escapeXml(value.toString()); } return null; } /** * @see TextExportView#doExport(java.io.Writer) */ public void doExport(Writer out) throws IOException, JspException { if (log.isDebugEnabled()) { log.debug(getClass().getName()); } final String DOCUMENT_START = getDocumentStart(); final String DOCUMENT_END = getDocumentEnd(); final String ROW_START = getRowStart(); final String ROW_END = getRowEnd(); final boolean ALWAYS_APPEND_CELL_END = getAlwaysAppendCellEnd(); final boolean ALWAYS_APPEND_ROW_END = getAlwaysAppendRowEnd(); buildHeaders(); // document start write(out, DOCUMENT_START); // get the correct iterator (full or partial list according to the exportFull field) RowIterator rowIterator = this.model.getRowIterator(this.exportFull); // iterator on rows while (rowIterator.hasNext()) { Row row = rowIterator.next(); if (this.model.getTableDecorator() != null) { String stringStartRow = this.model.getTableDecorator().startRow(); write(out, stringStartRow); } // iterator on columns ColumnIterator columnIterator = row.getColumnIterator(this.model.getHeaderCellList()); write(out, ROW_START); int columnNumber = 0; while (columnIterator.hasNext()) { Column column = columnIterator.nextColumn(); String columnHeader = (String) headerTitles.get(columnNumber); String cellStart = getCellStart(columnHeader); String cellEnd = getCellEnd(columnHeader); // Get the value to be displayed for the column String value = escapeColumnValue(column.getValue(this.decorated)); write(out, cellStart); write(out, value); if (ALWAYS_APPEND_CELL_END || columnIterator.hasNext()) { write(out, cellEnd); } columnNumber++; } if (ALWAYS_APPEND_ROW_END || rowIterator.hasNext()) { write(out, ROW_END); } } // document end write(out, DOCUMENT_END); } /** * Write a String, checking for nulls value. * * @param out output writer * @param string String to be written * @throws java.io.IOException thrown by out.write */ private void write(Writer out, String string) throws IOException { if (string != null) { out.write(string); } } /** * @see TextExportView#outputPage() */ public boolean outputPage() { return false; } /** * iterates through the headers once, placing the titles in an ArrayList for * quick'n'easy access as we iterate through each row */ private void buildHeaders() { headerTitles.clear(); Iterator iterator = this.model.getHeaderCellList().iterator(); while (iterator.hasNext()) { HeaderCell headerCell = (HeaderCell) iterator.next(); String columnHeader = headerCell.getTitle(); if (columnHeader == null) { columnHeader = headerCell.getBeanPropertyName(); } if (columnHeader != null) { columnHeader = StringUtils.deleteWhitespace(WordUtils.capitalizeFully(columnHeader)); columnHeader = escapeColumnValue(columnHeader); } headerTitles.add(columnHeader); } } } Make sure you also change org.displaytag.properties.TableTag.properties as follows: replace the line that reads export.xml.class=org.displaytag.export.XmlView with this line export.xml.class=org.displaytag.export.EnhancedXmlView > Export using reflection > ----------------------- > > Key: DISPL-24 > URL: http://jira.codehaus.org/browse/DISPL-24 > Project: DisplayTag > Type: Wish > Components: Export > Versions: 1.0 RC1 > Reporter: fabrizio giustina > Assignee: fabrizio giustina > Priority: Minor > Fix For: 1.0 RC2 > > > ==== > imported from sf tracker > id 1021473 > submitted by Mike Miller - mikemiller991 > http://sourceforge.net/tracker/index.php?func=detail&group_id=73068&atid=536613&aid=1021473 > > ==== > One thing I would like to see with the export > functionality is the ability for it to do the following: > In the XML export, instead of > <table> > <column></column> > </table> > Is it possible to have it do something like > <tableName> > <fieldName></fieldName> > </tableName> > Also another function might be to allow a user to export > the whole collection using the List provided as the table > source. I have a case in which some of my data from a > collection is used to populate a 'tooltips' for other data > in the collection. When I do an export..that > data "screwily" (that even a word :) ) placed into the > output. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ displaytag-devel mailing list displaytag-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/displaytag-devel
