Sorry if this is a basic question, as I am quite new to AEM.
I have a cq dialog allowing multiple tags to be entered.
<tags
cq:showOnCreate="{Boolean}true"
jcr:primaryType="nt:unstructured"
sling:resourceType="/libs/cq/gui/components/coral/common/form/tagfield"
allowCreate="{Boolean}true"
fieldLabel="Tags to add"
metaType="tags"
multiple="true" <====================
name="./metaData/TAGS"/>
I am trying to retrieve the two tags above in my WorkflowProcess as below:
#Component(
//...
)
public class TagStep implements WorkflowProcess {
#Override
public void execute(WorkItem workItem, WorkflowSession workflowSession, MetaDataMap processArguments) {
try {
//...
List<String> tagslist = new ArrayList();
List<String> tags = processArguments.get("TAGS",tagslist);
// Nothing logged here <=======
for (String tag: tags) {
LOG.info(tag);
}
//...
} catch (Exception e){
LOG.info("\n ERROR {} ",e.getMessage());
}
}
}
There is no output when I try to log tag in the loop above, probably the return type of List<String> cannot be converted.
What is the proper return type when using multiple="true", and how to use processArguments.get to get the values?
Btw my code was based on the tutorial here.
Thank you,
After looking into the source implementation, it is using an Array, not a List. so here is how to retrieve the passed in data.
Node node = (Node) session.getItem(path);
String[] cars = {};
String[] tags = processArguments.get("TAGS",cars);
node.setProperty("cq:tags", tags);
Related
Is it possible to use a foreach loop in a BLC to iterate through the fields of a PXResultSet to get the FieldNames?
Is this doable? I can't seem to find a good way.
Thanks...
The PXResultset records are selected from a view. You can get the field names from the View.
Here's a full example:
public class SOOrderEntry_Extension : PXGraphExtension<SOOrderEntry>
{
public override void Initialize()
{
// Get field list from data view
var dataView = new PXSelect<SOOrder>(Base);
string fieldNames = string.Join(",", GetFieldNames(dataView.View, Base.Caches));
// You don't need result set to get field names
PXResultset<SOOrder> resultSet = dataView.Select();
throw new PXException(fieldNames);
}
public string[] GetFieldNames(PXView view, PXCacheCollection caches)
{
var list = new List<string>();
var set = new HashSet<string>();
foreach (Type t in view.GetItemTypes())
{
if (list.Count == 0)
{
list.AddRange(caches[t].Fields);
set.AddRange(list);
}
else
{
foreach (string field in caches[t].Fields)
{
string s = String.Format("{0}__{1}", t.Name, field);
if (set.Add(s))
{
list.Add(s);
}
}
}
}
return list.ToArray();
}
}
When run, this example will show the fields names used in the data view in Sales Order screen SO301000 as an exception.
Field names are contained in Cache object. If you really need to get field names from PXResultset you need to iterate the cache types in the result set.
Example for first DacType (0) of result set:
public class SOOrderEntry_Extension : PXGraphExtension<SOOrderEntry>
{
public override void Initialize()
{
var dataView = new PXSelect<SOOrder>(Base);
PXResultset<SOOrder> resultSet = dataView.Select();
foreach (PXResult result in resultSet)
{
Type dacType = result.GetItemType(0);
foreach (var field in Base.Caches[dacType].Fields)
PXTrace.WriteInformation(field);
}
}
}
I am working on my first Notes/XPages/Java application and I am stuck at some of the basic 'crud' level. The following is part of the managed bean. I can load the data on to the XPage, but saving the Checkbox field is causing me problems, i.e. it won't save. I assume it is to do with the data type as the CheckboxGroup is multivalued.
Form Fields are:
Category
Employment Role
Variables
public class TrainingModule implements Serializable {
private String Category;
private Object EmploymentRole;
public String getCategory() {
return Category; }
public void setCategory(final String category) {
Category = category;}
public Object getEmploymentRole() {
return EmploymentRole;}
public void setEmploymentRole(final Object employmentRole) {
EmploymentRole = employmentRole;}
Load Method
public void load(final String unid) {
setUnid(unid);
Document doc = null;
try {
doc = ExtLibUtil.getCurrentDatabase().getDocumentByUNID(getUnid());
setCategory(doc.getItemValueString("Category"));
setEmploymentRole(doc.getItemValue("EmploymentRole"));
etc
Save Method
public boolean saveData() {
boolean result = false;
Document doc = null;
try {
doc.replaceItemValue("Category", Category);
doc.replaceItemValue("EmploymentRole", EmploymentRole);
result = doc.save()
etc
XPage
<xp:checkBoxGroup id="checkBoxGroup1"
value="#{TrainingModule.employmentRole}">
<xp:selectItem itemLabel="Admin" itemValue="Admin">
</xp:selectItem>
<xp:selectItem itemLabel="Installation" itemValue="Installation">
</xp:selectItem>
<xp:selectItem itemLabel="Proj Man" itemValue="Proj Man">
</xp:selectItem>
</xp:checkBoxGroup>
I know there are similar postings, but I just can't seem to relate them to what I am trying to achieve.
My next task will be using upload and download controls with Java so any hints or traps to avoid would be great.
Any help would be appreciated.
Define your employment roles as a field of type ArrayList<String>:
private List<String> employmentRoles = new ArrayList<String>();
public void setEmploymentRoles(List<String> employmentRoles) {
this.employmentRoles = employmentRoles;
}
public List<String> getEmploymentRoles() {
return employmentRoles;
}
Read the values with
setEmploymentRoles(doc.getItemValue("EmploymentRole"));
and save the values with
doc.replaceItemValue("EmploymentRole", new Vector(getEmploymentRoles()));
Btw, you shouldn't start a field name with a capital letter. Look here for Java naming conventions.
Since you need to load/save your data, you might be better off with an object data source. Anyway try this:
public Object[] getEmploymentRole() {
return EmploymentRole;}
public void setEmploymentRole(final Object[] employmentRole) {
EmploymentRole = employmentRole;}
An array can't be cast to an Object and a checkboxgroup tries to get/set an array.
This then leads to a slight change in your save method:
doc.replaceItemValue("Category", Category);
Vector v = new Vector(Arrays.asList(EmploymentRole));
doc.replaceItemValue("EmploymentRole", v);
Let us know how it goes
I want to use RazorEngine to generate some html files. It's easy to generate strings first, then write them to files. But if the generated strings are too large, that will cause memory issues.
So I wonder is there a non-cached way to use RazorEngine, like using StreamWriter as its output rather than a string.
I google this for a while, but with no luck.
I think use a custom base template should be the right way, but the documents are so few(even out of date) on the offcial homepage of RazorEngine.
Any hint will be helpful!
OK. I figured it out.
Create a class that inherits TemplateBase<T>, and take a TextWrite parameter in the constructor.
public class TextWriterTemplate<T> : TemplateBase<T>
{
private readonly TextWriter _tw;
public TextWriterTemplate(TextWriter tw)
{
_tw = tw;
}
// override Write and WriteLiteral methods, write text using the TextWriter.
public override void Write(object value)
{
_tw.Write(value);
}
public override void WriteLiteral(string literal)
{
_tw.Write(literal);
}
}
Then use the template as this:
private static void Main(string[] args)
{
using (var sw = new StreamWriter(#"output.txt"))
{
var config = new FluentTemplateServiceConfiguration(c =>
c.WithBaseTemplateType(typeof(TextWriterTemplate<>))
.ActivateUsing(context => (ITemplate)Activator.CreateInstance(context.TemplateType, sw))
);
using (var service = new TemplateService(config))
{
service.Parse("Hello #Model.Name", new {Name = "Waku"}, null, null);
}
}
}
The content of output.txt should be Hello WAKU.
I am new to sharepoint development and i have task in hand to do. I need to add few lines of code for the following logic.
Need to check if previous title and new title of task items are same.
If Not, then query the Task list
Find all the items which contain the previous title
Update their titles.
Here is my Pseudocode:
public override void ItemUpdating(SPItemEventProperties properties)
{
try {
this.DisableEventFiring();
//Need to write my logic here
base.ItemUpdating(properties);
}
catch (Exception ex) {
}
finally {
this.EnableEventFiring();
}
}
Can somebody guide me how to write the code for the above mentioned logic? If you have any sample code's with similar logic, please share it. It will be helpful for me.
Thanks in Advance!
This code might help you out. Maybe you need to adapt it for your needs, but the properties you need to access are the same.
public override void ItemUpdating(SPItemEventProperties properties)
{
//this will get your title before updating
var oldName = properties.ListItem["Title"].ToString();
//and this will get the new title
var newName = properties.AfterProperties["Title"].ToString();
if (newName != oldName)
{
using (var site = new SPSite("http://yoursitename"))
using (var web = site.OpenWeb())
{
var list = web.Lists["Tasks"];
var items = list.Items.OfType<SPListItem>().Where(i => (string) i["Title"] == oldName);
foreach (var item in items)
{
item["Title"] = newName;
item.Update();
}
}
}
base.ItemUpdating(properties);
}
Is anyone aware of a method to dynamically combine/minify all the h:outputStylesheet resources and then combine/minify all h:outputScript resources in the render phase? The comined/minified resource would probably need to be cached with a key based on the combined resource String or something to avoid excessive processing.
If this feature doesn't exist I'd like to work on it. Does anyone have ideas on the best way to implement something like this. A Servlet filter would work I suppose but the filter would have to do more work than necessary -- basically examining the whole rendered output and replacing matches. Implementing something in the render phase seems like it would work better as all of the static resources are available without having to parse the entire output.
Thanks for any suggestions!
Edit: To show that I'm not lazy and will really work on this with some guidance, here is a stub that captures Script Resources name/library and then removes them from the view. As you can see I have some questions about what to do next ... should I make http requests and get the resources to combine, then combine them and save them to the resource cache?
package com.davemaple.jsf.listener;
import java.util.ArrayList;
import java.util.List;
import javax.faces.component.UIComponent;
import javax.faces.component.UIOutput;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.faces.event.PreRenderViewEvent;
import javax.faces.event.SystemEvent;
import javax.faces.event.SystemEventListener;
import org.apache.log4j.Logger;
/**
* A Listener that combines CSS/Javascript Resources
*
* #author David Maple<d#davemaple.com>
*
*/
public class ResourceComboListener implements PhaseListener, SystemEventListener {
private static final long serialVersionUID = -8430945481069344353L;
private static final Logger LOGGER = Logger.getLogger(ResourceComboListener.class);
#Override
public PhaseId getPhaseId() {
return PhaseId.RESTORE_VIEW;
}
/*
* (non-Javadoc)
* #see javax.faces.event.PhaseListener#beforePhase(javax.faces.event.PhaseEvent)
*/
public void afterPhase(PhaseEvent event) {
FacesContext.getCurrentInstance().getViewRoot().subscribeToViewEvent(PreRenderViewEvent.class, this);
}
/*
* (non-Javadoc)
* #see javax.faces.event.PhaseListener#afterPhase(javax.faces.event.PhaseEvent)
*/
public void beforePhase(PhaseEvent event) {
//nothing here
}
/*
* (non-Javadoc)
* #see javax.faces.event.SystemEventListener#isListenerForSource(java.lang.Object)
*/
public boolean isListenerForSource(Object source) {
return (source instanceof UIViewRoot);
}
/*
* (non-Javadoc)
* #see javax.faces.event.SystemEventListener#processEvent(javax.faces.event.SystemEvent)
*/
public void processEvent(SystemEvent event) throws AbortProcessingException {
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot viewRoot = context.getViewRoot();
List<UIComponent> scriptsToRemove = new ArrayList<UIComponent>();
if (!context.isPostback()) {
for (UIComponent component : viewRoot.getComponentResources(context, "head")) {
if (component.getClass().equals(UIOutput.class)) {
UIOutput uiOutput = (UIOutput) component;
if (uiOutput.getRendererType().equals("javax.faces.resource.Script")) {
String library = uiOutput.getAttributes().get("library").toString();
String name = uiOutput.getAttributes().get("name").toString();
// make https requests to get the resources?
// combine then and save to resource cache?
// insert new UIOutput script?
scriptsToRemove.add(component);
}
}
}
for (UIComponent component : scriptsToRemove) {
viewRoot.getComponentResources(context, "head").remove(component);
}
}
}
}
This answer doesn't cover minifying and compression. Minifying of individual CSS/JS resources is better to be delegated to build scripts like YUI Compressor Ant task. Manually doing it on every request is too expensive. Compression (I assume you mean GZIP?) is better to be delegated to the servlet container you're using. Manually doing it is overcomplicated. On Tomcat for example it's a matter of adding a compression="on" attribute to the <Connector> element in /conf/server.xml.
The SystemEventListener is already a good first step (apart from some PhaseListener unnecessity). Next, you'd need to implement a custom ResourceHandler and Resource. That part is not exactly trivial. You'd need to reinvent pretty a lot if you want to be JSF implementation independent.
First, in your SystemEventListener, you'd like to create new UIOutput component representing the combined resource so that you can add it using UIViewRoot#addComponentResource(). You need to set its library attribute to something unique which is understood by your custom resource handler. You need to store the combined resources in an application wide variable along an unique name based on the combination of the resources (a MD5 hash maybe?) and then set this key as name attribute of the component. Storing as an application wide variable has a caching advantage for both the server and the client.
Something like this:
String combinedResourceName = CombinedResourceInfo.createAndPutInCacheIfAbsent(resourceNames);
UIOutput component = new UIOutput();
component.setRendererType(rendererType);
component.getAttributes().put(ATTRIBUTE_RESOURCE_LIBRARY, CombinedResourceHandler.RESOURCE_LIBRARY);
component.getAttributes().put(ATTRIBUTE_RESOURCE_NAME, combinedResourceName + extension);
context.getViewRoot().addComponentResource(context, component, TARGET_HEAD);
Then, in your custom ResourceHandler implementation, you'd need to implement the createResource() method accordingly to create a custom Resource implementation whenever the library matches the desired value:
#Override
public Resource createResource(String resourceName, String libraryName) {
if (RESOURCE_LIBRARY.equals(libraryName)) {
return new CombinedResource(resourceName);
} else {
return super.createResource(resourceName, libraryName);
}
}
The constructor of the custom Resource implementation should grab the combined resource info based on the name:
public CombinedResource(String name) {
setResourceName(name);
setLibraryName(CombinedResourceHandler.RESOURCE_LIBRARY);
setContentType(FacesContext.getCurrentInstance().getExternalContext().getMimeType(name));
this.info = CombinedResourceInfo.getFromCache(name.split("\\.", 2)[0]);
}
This custom Resource implementation must provide a proper getRequestPath() method returning an URI which will then be included in the rendered <script> or <link> element:
#Override
public String getRequestPath() {
FacesContext context = FacesContext.getCurrentInstance();
String path = ResourceHandler.RESOURCE_IDENTIFIER + "/" + getResourceName();
String mapping = getFacesMapping();
path = isPrefixMapping(mapping) ? (mapping + path) : (path + mapping);
return context.getExternalContext().getRequestContextPath()
+ path + "?ln=" + CombinedResourceHandler.RESOURCE_LIBRARY;
}
Now, the HTML rendering part should be fine. It'll look something like this:
<link type="text/css" rel="stylesheet" href="/playground/javax.faces.resource/dd08b105bf94e3a2b6dbbdd3ac7fc3f5.css.xhtml?ln=combined.resource" />
<script type="text/javascript" src="/playground/javax.faces.resource/2886165007ccd8fb65771b75d865f720.js.xhtml?ln=combined.resource"></script>
Next, you have to intercept on combined resource requests made by the browser. That's the hardest part. First, in your custom ResourceHandler implementation, you need to implement the handleResourceRequest() method accordingly:
#Override
public void handleResourceRequest(FacesContext context) throws IOException {
if (RESOURCE_LIBRARY.equals(context.getExternalContext().getRequestParameterMap().get("ln"))) {
streamResource(context, new CombinedResource(getCombinedResourceName(context)));
} else {
super.handleResourceRequest(context);
}
}
Then you have to do the whole lot of work of implementing the other methods of the custom Resource implementation accordingly such as getResponseHeaders() which should return proper caching headers, getInputStream() which should return the InputStreams of the combined resources in a single InputStream and userAgentNeedsUpdate() which should respond properly on caching related requests.
#Override
public Map<String, String> getResponseHeaders() {
Map<String, String> responseHeaders = new HashMap<String, String>(3);
SimpleDateFormat sdf = new SimpleDateFormat(PATTERN_RFC1123_DATE, Locale.US);
sdf.setTimeZone(TIMEZONE_GMT);
responseHeaders.put(HEADER_LAST_MODIFIED, sdf.format(new Date(info.getLastModified())));
responseHeaders.put(HEADER_EXPIRES, sdf.format(new Date(System.currentTimeMillis() + info.getMaxAge())));
responseHeaders.put(HEADER_ETAG, String.format(FORMAT_ETAG, info.getContentLength(), info.getLastModified()));
return responseHeaders;
}
#Override
public InputStream getInputStream() throws IOException {
return new CombinedResourceInputStream(info.getResources());
}
#Override
public boolean userAgentNeedsUpdate(FacesContext context) {
String ifModifiedSince = context.getExternalContext().getRequestHeaderMap().get(HEADER_IF_MODIFIED_SINCE);
if (ifModifiedSince != null) {
SimpleDateFormat sdf = new SimpleDateFormat(PATTERN_RFC1123_DATE, Locale.US);
try {
info.reload();
return info.getLastModified() > sdf.parse(ifModifiedSince).getTime();
} catch (ParseException ignore) {
return true;
}
}
return true;
}
I've here a complete working proof of concept, but it's too much of code to post as a SO answer. The above was just a partial to help you in the right direction. I assume that the missing method/variable/constant declarations are self-explaining enough to write your own, otherwise let me know.
Update: as per the comments, here's how you can collect resources in CombinedResourceInfo:
private synchronized void loadResources(boolean forceReload) {
if (!forceReload && resources != null) {
return;
}
FacesContext context = FacesContext.getCurrentInstance();
ResourceHandler handler = context.getApplication().getResourceHandler();
resources = new LinkedHashSet<Resource>();
contentLength = 0;
lastModified = 0;
for (Entry<String, Set<String>> entry : resourceNames.entrySet()) {
String libraryName = entry.getKey();
for (String resourceName : entry.getValue()) {
Resource resource = handler.createResource(resourceName, libraryName);
resources.add(resource);
try {
URLConnection connection = resource.getURL().openConnection();
contentLength += connection.getContentLength();
long lastModified = connection.getLastModified();
if (lastModified > this.lastModified) {
this.lastModified = lastModified;
}
} catch (IOException ignore) {
// Can't and shouldn't handle it here anyway.
}
}
}
}
(the above method is called by reload() method and by getters depending on one of the properties which are to be set)
And here's how the CombinedResourceInputStream look like:
final class CombinedResourceInputStream extends InputStream {
private List<InputStream> streams;
private Iterator<InputStream> streamIterator;
private InputStream currentStream;
public CombinedResourceInputStream(Set<Resource> resources) throws IOException {
streams = new ArrayList<InputStream>();
for (Resource resource : resources) {
streams.add(resource.getInputStream());
}
streamIterator = streams.iterator();
streamIterator.hasNext(); // We assume it to be always true; CombinedResourceInfo won't be created anyway if it's empty.
currentStream = streamIterator.next();
}
#Override
public int read() throws IOException {
int read = -1;
while ((read = currentStream.read()) == -1) {
if (streamIterator.hasNext()) {
currentStream = streamIterator.next();
} else {
break;
}
}
return read;
}
#Override
public void close() throws IOException {
IOException caught = null;
for (InputStream stream : streams) {
try {
stream.close();
} catch (IOException e) {
if (caught == null) {
caught = e; // Don't throw it yet. We have to continue closing all other streams.
}
}
}
if (caught != null) {
throw caught;
}
}
}
Update 2: a concrete and reuseable solution is available in OmniFaces. See also CombinedResourceHandler showcase page and API documentation for more detail.
You may want to evaluate JAWR before implementing your own solution. I've used it in couple of projects and it was a big success. It used in JSF 1.2 projects but I think it will be easy to extend it to work with JSF 2.0. Just give it a try.
Omnifaces provided CombinedResourceHandler is an excellent utility, but I also love to share about this excellent maven plugin:- resources-optimizer-maven-plugin that can be used to minify/compress js/css files &/or aggregate them into fewer resources during the build time & not dynamically during runtime which makes it a more performant solution, I believe.
Also have a look at this excellent library as well:- webutilities
I have an other solution for JSF 2. Might also rok with JSF 1, but i do not know JSF 1 so i can not say. The Idea works mainly with components from h:head and works also for stylesheets. The result
is always one JavaScript (or Stylesheet) file for a page! It is hard for me to describe but i try.
I overload the standard JSF ScriptRenderer (or StylesheetRenderer) and configure the renderer
for the h:outputScript component in the faces-config.xml.
The new Renderer will now not write anymore the script-Tag but it will collect all resources
in a list. So first resource to be rendered will be first item in the list, the next follows
and so on. After last h:outputScript component ist rendered, you have to render 1 script-Tag
for the JavaScript file on this page. I make this by overloading the h:head renderer.
Now comes the idea:
I register an filter! The filter will look for this 1 script-Tag request. When this request comes,
i will get the list of resources for this page. Now i can fill the response from the list of
resources. The order will be correct, because the JSF rendering put the resources in correct order
into the list. After response is filled, the list should be cleared. Also you can do more
optimizations because you have the code in the filter....
I have code that works superb. My code also can handle browser caching and dynamic script rendering.
If anybody is interested i can share the code.