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Ajax picker improvements and fixes, support for mimetype restriction list in the Ajax File picker.

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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@7751 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Kevin Roast
2008-01-04 11:38:44 +00:00
parent 0027d6d0ad
commit b7965af43d
10 changed files with 266 additions and 19 deletions
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3
source/java/org/alfresco/web/bean/ajax/JSONWriter.java
View File

@@ -29,7 +29,8 @@ import java.io.Writer;
import java.util.Stack;
/**
* Very simple JSON writer. Wraps a Writer to output a JSON stream.
* Fast and simple JSON stream writer. Wraps a Writer to output a JSON object stream.
* No intermediate objects are created - writes are immediate to the underlying stream.
*
* @author Kevin Roast
*/

93
source/java/org/alfresco/web/bean/ajax/PickerBean.java
View File

@@ -25,8 +25,11 @@
package org.alfresco.web.bean.ajax;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import javax.faces.context.FacesContext;
import javax.transaction.UserTransaction;
@@ -38,6 +41,8 @@ import org.alfresco.service.cmr.dictionary.DictionaryService;
import org.alfresco.service.cmr.model.FileFolderService;
import org.alfresco.service.cmr.model.FileInfo;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.FileTypeImageSize;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.NodeService;
@@ -58,6 +63,7 @@ import org.apache.commons.logging.LogFactory;
*/
public class PickerBean
{
private static final String MSG_CATEGORIES = "categories";
private static final String ID_URL = "url";
private static final String ID_ICON = "icon";
private static final String ID_CHILDREN = "children";
@@ -66,6 +72,8 @@ public class PickerBean
private static final String ID_NAME = "name";
private static final String ID_ID = "id";
private static final String ID_PARENT = "parent";
private static final String PARAM_PARENT = "parent";
private static final String PARAM_MIMETYPES = "mimetypes";
private static final String FOLDER_IMAGE_PREFIX = "/images/icons/";
@@ -110,6 +118,13 @@ public class PickerBean
}
/**
* Return the JSON objects representing a list of categories.
*
* IN: "parent" - null for root categories, else the parent noderef of the categories to retrieve.
*
* The pseudo root node 'Categories' is not selectable.
*/
@InvokeCommand.ResponseMimetype(value=MimetypeMap.MIMETYPE_HTML)
public void getCategoryNodes() throws Exception
{
@@ -124,7 +139,7 @@ public class PickerBean
Collection<ChildAssociationRef> childRefs;
NodeRef parentRef = null;
Map params = fc.getExternalContext().getRequestParameterMap();
String strParentRef = (String)params.get(ID_PARENT);
String strParentRef = (String)params.get(PARAM_PARENT);
if (strParentRef == null || strParentRef.length() == 0)
{
childRefs = this.categoryService.getRootCategories(
@@ -147,7 +162,7 @@ public class PickerBean
if (parentRef == null)
{
out.writeNullValue(ID_ID);
out.writeValue(ID_NAME, "Categories");
out.writeValue(ID_NAME, Application.getMessage(fc, MSG_CATEGORIES));
out.writeValue(ID_ISROOT, true);
out.writeValue(ID_SELECTABLE, false);
}
@@ -182,6 +197,13 @@ public class PickerBean
}
}
/**
* Return the JSON objects representing a list of cm:folder nodes.
*
* IN: "parent" - null for Company Home child folders, else the parent noderef of the folders to retrieve.
*
* The 16x16 pixel folder icon path is output as the 'icon' property for each child folder.
*/
@InvokeCommand.ResponseMimetype(value=MimetypeMap.MIMETYPE_HTML)
public void getFolderNodes() throws Exception
{
@@ -197,7 +219,7 @@ public class PickerBean
NodeRef companyHomeRef = new NodeRef(Repository.getStoreRef(), Application.getCompanyRootId(fc));
NodeRef parentRef = null;
Map params = fc.getExternalContext().getRequestParameterMap();
String strParentRef = (String)params.get(ID_PARENT);
String strParentRef = (String)params.get(PARAM_PARENT);
if (strParentRef == null || strParentRef.length() == 0)
{
parentRef = companyHomeRef;
@@ -249,6 +271,18 @@ public class PickerBean
}
}
/**
* Return the JSON objects representing a list of cm:folder and cm:content nodes.
*
* IN: "parent" - null for Company Home child nodes, else the parent noderef of the folders to retrieve.
* IN: "mimetypes" (optional) - if set, a comma separated list of mimetypes to restrict the file list.
*
* It is assumed that only files should be selectable, all cm:folder nodes will be marked with the
* 'selectable:false' property. Therefore the parent (which is a folder) is not selectable.
*
* The 16x16 pixel node icon path is output as the 'icon' property for each child, in addition each
* cm:content node has an property of 'url' for content download.
*/
@InvokeCommand.ResponseMimetype(value=MimetypeMap.MIMETYPE_HTML)
public void getFileFolderNodes() throws Exception
{
@@ -261,12 +295,13 @@ public class PickerBean
tx.begin();
DictionaryService dd = Repository.getServiceRegistry(fc).getDictionaryService();
ContentService cs = Repository.getServiceRegistry(fc).getContentService();
List<ChildAssociationRef> childRefs;
NodeRef companyHomeRef = new NodeRef(Repository.getStoreRef(), Application.getCompanyRootId(fc));
NodeRef parentRef = null;
Map params = fc.getExternalContext().getRequestParameterMap();
String strParentRef = (String)params.get(ID_PARENT);
String strParentRef = (String)params.get(PARAM_PARENT);
if (strParentRef == null || strParentRef.length() == 0)
{
parentRef = companyHomeRef;
@@ -276,6 +311,20 @@ public class PickerBean
{
parentRef = new NodeRef(strParentRef);
}
// look for mimetype restriction parameter
Set<String> mimetypes = null;
String mimetypeParam = (String)params.get(PARAM_MIMETYPES);
if (mimetypeParam != null && mimetypeParam.length() != 0)
{
// convert to a set of mimetypes to test each file against
mimetypes = new HashSet<String>();
for (StringTokenizer t = new StringTokenizer(mimetypeParam, ","); t.hasMoreTokens(); /**/)
{
mimetypes.add(t.nextToken());
}
}
List<FileInfo> items = this.fileFolderService.list(parentRef);
JSONWriter out = new JSONWriter(fc.getResponseWriter());
@@ -294,28 +343,46 @@ public class PickerBean
out.startValue(ID_CHILDREN);
out.startArray();
// filter out those children that are not spaces
for (FileInfo item : items)
{
out.startObject();
out.writeValue(ID_ID, item.getNodeRef().toString());
String name = (String)item.getProperties().get(ContentModel.PROP_NAME);
out.writeValue(ID_NAME, name);
if (dd.isSubClass(this.internalNodeService.getType(item.getNodeRef()), ContentModel.TYPE_FOLDER))
{
// found a folder
out.startObject();
out.writeValue(ID_ID, item.getNodeRef().toString());
String name = (String)item.getProperties().get(ContentModel.PROP_NAME);
out.writeValue(ID_NAME, name);
String icon = (String)item.getProperties().get(ApplicationModel.PROP_ICON);
out.writeValue(ID_ICON, FOLDER_IMAGE_PREFIX + (icon != null ? icon + "-16.gif" : BrowseBean.SPACE_SMALL_DEFAULT + ".gif"));
out.writeValue(ID_SELECTABLE, false);
out.endObject();
}
else
{
// must be a file
String icon = Utils.getFileTypeImage(fc, name, FileTypeImageSize.Small);
out.writeValue(ID_ICON, icon);
out.writeValue(ID_URL, DownloadContentServlet.generateBrowserURL(item.getNodeRef(), name));
boolean validFile = true;
if (mimetypes != null)
{
validFile = false;
ContentReader reader = cs.getReader(item.getNodeRef(), ContentModel.PROP_CONTENT);
if (reader != null)
{
String mimetype = reader.getMimetype();
validFile = (mimetype != null && mimetypes.contains(mimetype));
}
}
if (validFile)
{
out.startObject();
out.writeValue(ID_ID, item.getNodeRef().toString());
String name = (String)item.getProperties().get(ContentModel.PROP_NAME);
out.writeValue(ID_NAME, name);
String icon = Utils.getFileTypeImage(fc, name, FileTypeImageSize.Small);
out.writeValue(ID_ICON, icon);
out.writeValue(ID_URL, DownloadContentServlet.generateBrowserURL(item.getNodeRef(), name));
out.endObject();
}
}
out.endObject();
}
out.endArray();