--- /dev/null
+package org.argeo.cms.util;
+
+import static javax.jcr.Node.JCR_CONTENT;
+import static javax.jcr.Property.JCR_DATA;
+import static javax.jcr.nodetype.NodeType.NT_FILE;
+import static javax.jcr.nodetype.NodeType.NT_RESOURCE;
+import static org.argeo.cms.ui.CmsConstants.NO_IMAGE_SIZE;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+import javax.jcr.Binary;
+import javax.jcr.Node;
+import javax.jcr.Property;
+import javax.jcr.RepositoryException;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.cms.CmsException;
+import org.argeo.cms.ui.CmsImageManager;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.service.ResourceManager;
+import org.eclipse.rap.rwt.widgets.FileUpload;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+
+/** Manages only public images so far. */
+public class DefaultImageManager implements CmsImageManager {
+ private final static Log log = LogFactory.getLog(DefaultImageManager.class);
+// private MimetypesFileTypeMap fileTypeMap = new MimetypesFileTypeMap();
+
+ public Boolean load(Node node, Control control, Point preferredSize) throws RepositoryException {
+ Point imageSize = getImageSize(node);
+ Point size;
+ String imgTag = null;
+ if (preferredSize == null || imageSize.x == 0 || imageSize.y == 0
+ || (preferredSize.x == 0 && preferredSize.y == 0)) {
+ if (imageSize.x != 0 && imageSize.y != 0) {
+ // actual image size if completely known
+ size = imageSize;
+ } else {
+ // no image if not completely known
+ size = resizeTo(NO_IMAGE_SIZE, preferredSize != null ? preferredSize : imageSize);
+ imgTag = CmsUtils.noImg(size);
+ }
+
+ } else if (preferredSize.x != 0 && preferredSize.y != 0) {
+ // given size if completely provided
+ size = preferredSize;
+ } else {
+ // at this stage :
+ // image is completely known
+ assert imageSize.x != 0 && imageSize.y != 0;
+ // one and only one of the dimension as been specified
+ assert preferredSize.x == 0 || preferredSize.y == 0;
+ size = resizeTo(imageSize, preferredSize);
+ }
+
+ boolean loaded = false;
+ if (control == null)
+ return loaded;
+
+ if (control instanceof Label) {
+ if (imgTag == null) {
+ // IMAGE RETRIEVED HERE
+ imgTag = getImageTag(node, size);
+ //
+ if (imgTag == null)
+ imgTag = CmsUtils.noImg(size);
+ else
+ loaded = true;
+ }
+
+ Label lbl = (Label) control;
+ lbl.setText(imgTag);
+ // lbl.setSize(size);
+ } else if (control instanceof FileUpload) {
+ FileUpload lbl = (FileUpload) control;
+ lbl.setImage(CmsUtils.noImage(size));
+ lbl.setSize(size);
+ return loaded;
+ } else
+ loaded = false;
+
+ return loaded;
+ }
+
+ private Point resizeTo(Point orig, Point constraints) {
+ if (constraints.x != 0 && constraints.y != 0) {
+ return constraints;
+ } else if (constraints.x == 0 && constraints.y == 0) {
+ return orig;
+ } else if (constraints.y == 0) {// force width
+ return new Point(constraints.x, scale(orig.y, orig.x, constraints.x));
+ } else if (constraints.x == 0) {// force height
+ return new Point(scale(orig.x, orig.y, constraints.y), constraints.y);
+ }
+ throw new CmsException("Cannot resize " + orig + " to " + constraints);
+ }
+
+ private int scale(int origDimension, int otherDimension, int otherConstraint) {
+ return Math.round(origDimension * divide(otherConstraint, otherDimension));
+ }
+
+ private float divide(int a, int b) {
+ return ((float) a) / ((float) b);
+ }
+
+ public Point getImageSize(Node node) throws RepositoryException {
+ // TODO load the SWT image ?
+ return new Point(0, 0);
+ }
+
+ /** @return null if not available */
+ @Override
+ public String getImageTag(Node node) throws RepositoryException {
+ return getImageTag(node, getImageSize(node));
+ }
+
+ private String getImageTag(Node node, Point size) throws RepositoryException {
+ StringBuilder buf = getImageTagBuilder(node, size);
+ if (buf == null)
+ return null;
+ return buf.append("/>").toString();
+ }
+
+ /** @return null if not available */
+ @Override
+ public StringBuilder getImageTagBuilder(Node node, Point size) throws RepositoryException {
+ return getImageTagBuilder(node, Integer.toString(size.x), Integer.toString(size.y));
+ }
+
+ /** @return null if not available */
+ private StringBuilder getImageTagBuilder(Node node, String width, String height) throws RepositoryException {
+ String url = getImageUrl(node);
+ if (url == null)
+ return null;
+ return CmsUtils.imgBuilder(url, width, height);
+ }
+
+ /** @return null if not available */
+ @Override
+ public String getImageUrl(Node node) throws RepositoryException {
+ return CmsUtils.getDataPath(node);
+ // String name = getResourceName(node);
+ // ResourceManager resourceManager = RWT.getResourceManager();
+ // if (!resourceManager.isRegistered(name)) {
+ // InputStream inputStream = null;
+ // Binary binary = getImageBinary(node);
+ // if (binary == null)
+ // return null;
+ // try {
+ // inputStream = binary.getStream();
+ // resourceManager.register(name, inputStream);
+ // } finally {
+ // IOUtils.closeQuietly(inputStream);
+ // JcrUtils.closeQuietly(binary);
+ // }
+ // if (log.isTraceEnabled())
+ // log.trace("Registered image " + name);
+ // }
+ // return resourceManager.getLocation(name);
+ }
+
+ protected String getResourceName(Node node) throws RepositoryException {
+ String workspace = node.getSession().getWorkspace().getName();
+ if (node.hasNode(JCR_CONTENT))
+ return workspace + '_' + node.getNode(JCR_CONTENT).getIdentifier();
+ else
+ return workspace + '_' + node.getIdentifier();
+ }
+
+ public Binary getImageBinary(Node node) throws RepositoryException {
+ if (node.isNodeType(NT_FILE)) {
+ return node.getNode(JCR_CONTENT).getProperty(JCR_DATA).getBinary();
+ } else {
+ return null;
+ }
+ }
+
+ public Image getSwtImage(Node node) throws RepositoryException {
+ InputStream inputStream = null;
+ Binary binary = getImageBinary(node);
+ if (binary == null)
+ return null;
+ try {
+ inputStream = binary.getStream();
+ return new Image(Display.getCurrent(), inputStream);
+ } finally {
+ IOUtils.closeQuietly(inputStream);
+ JcrUtils.closeQuietly(binary);
+ }
+ }
+
+ @Override
+ public String uploadImage(Node parentNode, String fileName, InputStream in) throws RepositoryException {
+ InputStream inputStream = null;
+ try {
+ String previousResourceName = null;
+ if (parentNode.hasNode(fileName)) {
+ Node node = parentNode.getNode(fileName);
+ previousResourceName = getResourceName(node);
+ if (node.hasNode(JCR_CONTENT)) {
+ node.getNode(JCR_CONTENT).remove();
+ node.addNode(JCR_CONTENT, NT_RESOURCE);
+ }
+ }
+
+ byte[] arr = IOUtils.toByteArray(in);
+ Node fileNode = JcrUtils.copyBytesAsFile(parentNode, fileName, arr);
+ inputStream = new ByteArrayInputStream(arr);
+ ImageData id = new ImageData(inputStream);
+ processNewImageFile(fileNode, id);
+
+ String mime = Files.probeContentType(Paths.get(fileName));
+ fileNode.setProperty(Property.JCR_MIMETYPE, mime);
+ fileNode.getSession().save();
+
+ // reset resource manager
+ ResourceManager resourceManager = RWT.getResourceManager();
+ if (previousResourceName != null && resourceManager.isRegistered(previousResourceName)) {
+ resourceManager.unregister(previousResourceName);
+ if (log.isDebugEnabled())
+ log.debug("Unregistered image " + previousResourceName);
+ }
+ return getImageUrl(fileNode);
+ } catch (IOException e) {
+ throw new CmsException("Cannot upload image " + fileName + " in " + parentNode, e);
+ } finally {
+ IOUtils.closeQuietly(inputStream);
+ }
+ }
+
+ /** Does nothign by default. */
+ protected void processNewImageFile(Node fileNode, ImageData id) throws RepositoryException, IOException {
+ }
+}
projects / lgpl / argeo-commons.git / blobdiff