CmsUtils.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.InputStream;
   4 import java.net.MalformedURLException;
   5 import java.net.URL;
   6
   7 import javax.jcr.Node;
   8 import javax.jcr.RepositoryException;
   9 import javax.servlet.http.HttpServletRequest;
  10
  11 import org.apache.commons.io.IOUtils;
  12 import org.argeo.cms.CmsException;
  13 import org.argeo.cms.ui.CmsConstants;
  14 import org.argeo.cms.ui.CmsView;
  15 import org.argeo.eclipse.ui.specific.UiContext;
  16 import org.argeo.jcr.JcrUtils;
  17 import org.argeo.node.NodeConstants;
  18 import org.argeo.node.NodeUtils;
  19 import org.argeo.node.security.NodeAuthenticated;
  20 import org.eclipse.rap.rwt.RWT;
  21 import org.eclipse.rap.rwt.service.ResourceManager;
  22 import org.eclipse.swt.SWT;
  23 import org.eclipse.swt.graphics.Image;
  24 import org.eclipse.swt.graphics.ImageData;
  25 import org.eclipse.swt.graphics.Point;
  26 import org.eclipse.swt.layout.GridData;
  27 import org.eclipse.swt.layout.GridLayout;
  28 import org.eclipse.swt.layout.RowData;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.swt.widgets.Control;
  31 import org.eclipse.swt.widgets.Display;
  32 import org.eclipse.swt.widgets.Table;
  33 import org.eclipse.swt.widgets.Widget;
  34
  35 /** Static utilities for the CMS framework. */
  36 public class CmsUtils implements CmsConstants {
  37         // private final static Log log = LogFactory.getLog(CmsUtils.class);
  38
  39         /**
  40          * The CMS view related to this display, or null if none is available from
  41          * this call.
  42          */
  43         public static CmsView getCmsView() {
  44                 return UiContext.getData(NodeAuthenticated.KEY);
  45         }
  46
  47         public static StringBuilder getServerBaseUrl(HttpServletRequest request) {
  48                 try {
  49                         URL url = new URL(request.getRequestURL().toString());
  50                         StringBuilder buf = new StringBuilder();
  51                         buf.append(url.getProtocol()).append("://").append(url.getHost());
  52                         if (url.getPort() != -1)
  53                                 buf.append(':').append(url.getPort());
  54                         return buf;
  55                 } catch (MalformedURLException e) {
  56                         throw new CmsException("Cannot extract server base URL from " + request.getRequestURL(), e);
  57                 }
  58         }
  59
  60         //
  61         public static String getDataUrl(Node node, HttpServletRequest request) throws RepositoryException {
  62                 try {
  63                         StringBuilder buf = getServerBaseUrl(request);
  64                         buf.append(getDataPath(node));
  65                         return new URL(buf.toString()).toString();
  66                 } catch (MalformedURLException e) {
  67                         throw new CmsException("Cannot build data URL for " + node, e);
  68                 }
  69         }
  70
  71         // private final static String PATH_DATA = "/data";
  72         // private final static String WEBDAV_PUBLIC = PATH_DATA + "/public";
  73         // private final static String WEBDAV_PRIVATE = PATH_DATA + "/files";
  74
  75         /** A path in the node repository */
  76         public static String getDataPath(Node node) throws RepositoryException {
  77                 return getDataPath(NodeConstants.NODE, node);
  78         }
  79
  80         public static String getDataPath(String cn, Node node) throws RepositoryException {
  81                 return NodeUtils.getDataPath(cn, node);
  82                 // assert node != null;
  83                 // String userId = node.getSession().getUserID();
  84                 // if (log.isTraceEnabled())
  85                 // log.trace(userId + " : " + node.getPath());
  86                 // StringBuilder buf = new StringBuilder();
  87                 // boolean isAnonymous =
  88                 // userId.equalsIgnoreCase(NodeConstants.ROLE_ANONYMOUS);
  89                 // if (isAnonymous)
  90                 // buf.append(WEBDAV_PUBLIC);
  91                 // else
  92                 // buf.append(WEBDAV_PRIVATE);
  93                 // Session session = node.getSession();
  94                 // Repository repository = session.getRepository();
  95                 // String cn;
  96                 // if (repository.isSingleValueDescriptor(NodeConstants.CN)) {
  97                 // cn = repository.getDescriptor(NodeConstants.CN);
  98                 // } else {
  99                 // log.warn("No cn defined in repository, using " + NodeConstants.NODE);
 100                 // cn = NodeConstants.NODE;
 101                 // }
 102                 // return
 103                 // buf.append('/').append(cn).append('/').append(session.getWorkspace().getName()).append(node.getPath())
 104                 // .toString();
 105         }
 106         //
 107         // public static String getCanonicalUrl(Node node, HttpServletRequest
 108         // request) throws RepositoryException {
 109         // try {
 110         // StringBuilder buf = getServerBaseUrl(request);
 111         // buf.append('/').append('!').append(node.getPath());
 112         // return new URL(buf.toString()).toString();
 113         // } catch (MalformedURLException e) {
 114         // throw new CmsException("Cannot build data URL for " + node, e);
 115         // }
 116         // // return request.getRequestURL().append('!').append(node.getPath())
 117         // // .toString();
 118         // }
 119
 120         /** @deprecated Use rowData16px() instead. GridData should not be reused. */
 121         @Deprecated
 122         public static RowData ROW_DATA_16px = new RowData(16, 16);
 123
 124         public static GridLayout noSpaceGridLayout() {
 125                 return noSpaceGridLayout(new GridLayout());
 126         }
 127
 128         public static GridLayout noSpaceGridLayout(GridLayout layout) {
 129                 layout.horizontalSpacing = 0;
 130                 layout.verticalSpacing = 0;
 131                 layout.marginWidth = 0;
 132                 layout.marginHeight = 0;
 133                 return layout;
 134         }
 135
 136         //
 137         // GRID DATA
 138         //
 139         public static GridData fillWidth() {
 140                 return grabWidth(SWT.FILL, SWT.FILL);
 141         }
 142
 143         public static GridData fillAll() {
 144                 return new GridData(SWT.FILL, SWT.FILL, true, true);
 145         }
 146
 147         public static GridData grabWidth(int horizontalAlignment, int verticalAlignment) {
 148                 return new GridData(horizontalAlignment, horizontalAlignment, true, false);
 149         }
 150
 151         public static RowData rowData16px() {
 152                 return new RowData(16, 16);
 153         }
 154
 155         /** Style widget */
 156         public static void style(Widget widget, String style) {
 157                 widget.setData(CmsConstants.STYLE, style);
 158         }
 159
 160         /** Enable markups on widget */
 161         public static void markup(Widget widget) {
 162                 widget.setData(CmsConstants.MARKUP, true);
 163         }
 164
 165         public static void setItemHeight(Table table, int height) {
 166                 table.setData(CmsConstants.ITEM_HEIGHT, height);
 167         }
 168
 169         // /** @return the path or null if not instrumented */
 170         // @Deprecated
 171         // public static String getDataPath(Widget widget) {
 172         // // JCR item
 173         // Object data = widget.getData();
 174         // if (data != null && data instanceof Item) {
 175         // try {
 176         // return ((Item) data).getPath();
 177         // } catch (RepositoryException e) {
 178         // throw new CmsException("Cannot find data path of " + data + " for " +
 179         // widget);
 180         // }
 181         // }
 182         //
 183         // // JCR path
 184         // data = widget.getData(Property.JCR_PATH);
 185         // if (data != null)
 186         // return data.toString();
 187         //
 188         // return null;
 189         // }
 190
 191         /** Dispose all children of a Composite */
 192         public static void clear(Composite composite) {
 193                 for (Control child : composite.getChildren())
 194                         child.dispose();
 195         }
 196
 197         //
 198         // JCR
 199         //
 200         public static Node getOrAddEmptyFile(Node parent, Enum<?> child) throws RepositoryException {
 201                 if (has(parent, child))
 202                         return child(parent, child);
 203                 return JcrUtils.copyBytesAsFile(parent, child.name(), new byte[0]);
 204         }
 205
 206         public static Node child(Node parent, Enum<?> en) throws RepositoryException {
 207                 return parent.getNode(en.name());
 208         }
 209
 210         public static Boolean has(Node parent, Enum<?> en) throws RepositoryException {
 211                 return parent.hasNode(en.name());
 212         }
 213
 214         public static Node getOrAdd(Node parent, Enum<?> en) throws RepositoryException {
 215                 return getOrAdd(parent, en, null);
 216         }
 217
 218         public static Node getOrAdd(Node parent, Enum<?> en, String primaryType) throws RepositoryException {
 219                 if (has(parent, en))
 220                         return child(parent, en);
 221                 else if (primaryType == null)
 222                         return parent.addNode(en.name());
 223                 else
 224                         return parent.addNode(en.name(), primaryType);
 225         }
 226
 227         // IMAGES
 228         public static String img(String src, String width, String height) {
 229                 return imgBuilder(src, width, height).append("/>").toString();
 230         }
 231
 232         public static String img(String src, Point size) {
 233                 return img(src, Integer.toString(size.x), Integer.toString(size.y));
 234         }
 235
 236         public static StringBuilder imgBuilder(String src, String width, String height) {
 237                 return new StringBuilder(64).append("<img width='").append(width).append("' height='").append(height)
 238                                 .append("' src='").append(src).append("'");
 239         }
 240
 241         public static String noImg(Point size) {
 242                 ResourceManager rm = RWT.getResourceManager();
 243                 return CmsUtils.img(rm.getLocation(NO_IMAGE), size);
 244         }
 245
 246         public static String noImg() {
 247                 return noImg(NO_IMAGE_SIZE);
 248         }
 249
 250         public static Image noImage(Point size) {
 251                 ResourceManager rm = RWT.getResourceManager();
 252                 InputStream in = null;
 253                 try {
 254                         in = rm.getRegisteredContent(NO_IMAGE);
 255                         ImageData id = new ImageData(in);
 256                         ImageData scaled = id.scaledTo(size.x, size.y);
 257                         Image image = new Image(Display.getCurrent(), scaled);
 258                         return image;
 259                 } finally {
 260                         IOUtils.closeQuietly(in);
 261                 }
 262         }
 263
 264         private CmsUtils() {
 265         }
 266 }