Original Question
I found this wiki on Liferay website --> https://web.liferay.com/community/wiki/-/wiki/Main/JSON+Serialization
it says that I can serialize objects to JSON by just using the code below
JSONFactoryUtil.looseSerialize(object);
It does the job, but the date fields on my object is not formatted in such I way that I wanted. It looks like the one below
{
"companyId": 20154,
"createDate": 1470512924000,
"endDateTime": 1531008000000,
"groupId": 20181,
"modifiedDate": 1470512924000,
"startDateTime": 1518048000000,
"status": 0,
"statusByUserId": 23703,
"statusByUserName": "Regular User",
"statusDate": 1470513234000,
"userId": 23703,
"userName": "Regular User",
"uuid": "cbf1779a-411c-4c03-b7c5-bfefb364b4b1"
}
How can I format it? it says also on the wiki that "Loose Serialization" is based on the flexjson library.
So I checked flexjson library and found out that they have default DateTransformer that I need to use, but the eclipse intellisense did not recognize the said transfomer.
Here is my reference with DateTransformer of Flexjson --> http://flexjson.sourceforge.net/
it says there that I can format it by using the code below:
JSONSerializer serializer = new JSONSerializer()
.transform(new BasicDateTransformer(), Date.class)
.transform(new DateTransformer("MM/dd/yyyy"), "person.birthday");
Question is how can I do that in Liferay SDK? I'm using the Ant style build type.
Added
I got this error:
flexjson.JSONException: [ expandoBridge.table.expandoBridge ]: Error while trying to deepSerialize.
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:66)
at flexjson.transformer.TransformerWrapper.transform(TransformerWrapper.java:22)
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:49)
at flexjson.transformer.TransformerWrapper.transform(TransformerWrapper.java:22)
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:49)
at flexjson.transformer.TransformerWrapper.transform(TransformerWrapper.java:22)
at flexjson.JSONContext.transform(JSONContext.java:72)
at flexjson.transformer.IterableTransformer.transform(IterableTransformer.java:29)
at flexjson.transformer.TransformerWrapper.transform(TransformerWrapper.java:22)
at flexjson.JSONContext.transform(JSONContext.java:72)
at flexjson.JSONSerializer.serialize(JSONSerializer.java:385)
at flexjson.JSONSerializer.serialize(JSONSerializer.java:243)
at com.ms3.portlet.Ptotracker.getUpcomingPtoData(Ptotracker.java:81)
at com.ms3.portlet.Ptotracker.doView(Ptotracker.java:48)
at com.liferay.portal.kernel.portlet.LiferayPortlet.doDispatch(LiferayPortlet.java:235)
at com.liferay.util.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:314)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:262)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:55)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:583)
at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:656)
at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:362)
at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1239)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:57)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.doDispatch(ClassLoaderRequestDispatcherWrapper.java:78)
at com.liferay.portal.servlet.ClassLoaderRequestDispatcherWrapper.include(ClassLoaderRequestDispatcherWrapper.java:53)
at com.liferay.portlet.PortletContainerImpl._doRender(PortletContainerImpl.java:638)
at com.liferay.portlet.PortletContainerImpl.render(PortletContainerImpl.java:135)
at com.liferay.portlet.SecurityPortletContainerWrapper.render(SecurityPortletContainerWrapper.java:141)
at com.liferay.portlet.RestrictPortletContainerWrapper.render(RestrictPortletContainerWrapper.java:126)
at com.liferay.portal.kernel.portlet.PortletContainerUtil.render(PortletContainerUtil.java:156)
at com.liferay.portal.layoutconfiguration.util.PortletRenderer._render(PortletRenderer.java:125)
at com.liferay.portal.layoutconfiguration.util.PortletRenderer.render(PortletRenderer.java:72)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doProcessTemplate(RuntimePageImpl.java:452)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.doDispatch(RuntimePageImpl.java:284)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.processTemplate(RuntimePageImpl.java:113)
at com.liferay.portal.layoutconfiguration.util.RuntimePageImpl.processTemplate(RuntimePageImpl.java:124)
at com.liferay.portal.layoutconfiguration.util.RuntimePageUtil.processTemplate(RuntimePageUtil.java:69)
at org.apache.jsp.html.portal.layout.view.portlet_jsp._jspService(portlet_jsp.java:557)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
at com.liferay.portal.action.LayoutAction.includeLayoutContent(LayoutAction.java:302)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:413)
at com.liferay.portal.action.LayoutAction.doExecute(LayoutAction.java:200)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:95)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:168)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:557)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:534)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:93)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:308)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:161)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.uploadservletrequest.UploadServletRequestFilter.processFilter(UploadServletRequestFilter.java:93)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:361)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:308)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:254)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.jsoncontenttype.JSONContentTypeFilter.processFilter(JSONContentTypeFilter.java:42)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:169)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:268)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:320)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:57)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:59)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:204)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:109)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:165)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:185)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at flexjson.BeanProperty.getValue(BeanProperty.java:121)
at flexjson.transformer.ObjectTransformer.transform(ObjectTransformer.java:37)
... 194 more
Caused by: java.lang.UnsupportedOperationException
at com.liferay.portal.model.impl.BaseModelImpl.getExpandoBridge(BaseModelImpl.java:43)
... 200 more
It looks like there's a strange behavior (not as described by the library) with the transform method. Just tried this (and it worked !):
So, the comments in the source code states for the second argument of the transform method:
In your case for the members you want to apply the transformer you have to pass a string of all fields separated by dot.(BUT that didn't work for me with flexjson-2.1).
Since the second argument is a vararg that takes any number of strings passing the list of fields you want to apply the transformer separated by comma will do.