Exteremely slow response

asked 2017-09-03 16:34:47 +0800

dagarwal
101

Hello Team,

I am evaluating ZK for our next project. I invested lot of time for other framework like Vaadin. I am pleased with the zk's capability of autowiring and the development pace it provides. But, I am seeing some serious performance issue with simple ViewModel bindings:

ComponentVM.java

package com.rs.studio.vm;

import java.util.Map;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.ContextParam;
import org.zkoss.bind.annotation.ContextType;
import org.zkoss.bind.annotation.Init;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zk.ui.util.Clients;

public class ComponentVM {

private String name;

@Init
public void init() {
    String selectedComp = Executions.getCurrent().getParameter("selectedComponent");

        this.name = selectedComp;

}

@Command
@NotifyChange("Save")
public void Save() throws Exception {
    System.out.println("Save something");
}

public String getName() {
    return this.name;
}

public void setName(String name) {
    this.name = name;
}

}

test.zul

<zk>
<include id="contentInclude" ></include>
<button id="New"
        onClick='contentInclude.setSrc("/component/component.zul")' visible="true">
    </button>
</zk>

component.zul

<zk>

<div apply="org.zkoss.bind.BindComposer"
    viewModel="@id('vm') @init('com.rs.studio.vm.ComponentVM') @load(vm.name) @save(vm.name, before='submit')">

    <grid>

        <columns>

            <column></column>
            <column></column>

        </columns>
        <rows>

            <row>
                <label value="Component Name"></label>
                <textbox value="@bind(vm.name)"></textbox>

            </row>

            <row>
                <cell colspan="3" style="text-align:center">
                    <vlayout>
                        <button label="Save"
                            onClick="@command('Save')" width="100px" height="30px" >
                                <attribute name="onClick">
                                    //contentInclude.setSrc("/component/component_list.zul");
                                </attribute>
                            </button>
                    </vlayout>
                </cell>
            </row>
        </rows>
    </grid>


</div>

</zk>

After clicking on button I see Processing for like 10 seconds. I am running this on a 8 Core processor with 16 GB RAM and 250 GB SSD. It's a solid machine and just running zkoss in tomcat. Before implementing MVVVM I used MVM and performance was decent.

Following screenshot shows the debug output of ZK. I could not upload it here because it requires 100 Karma. ibb dot co / hu4W1v

Thanks, looking for your inputs.