Example usage for org.springframework.util MethodInvoker getTargetObject

Introduction

In this page you can find the example usage for org.springframework.util MethodInvoker getTargetObject.

Prototype

@Nullable
public Object getTargetObject() 

Source Link

Document

Return the target object on which to call the target method.

Usage

From source file:org.kuali.rice.krad.uif.lifecycle.finalize.InvokeFinalizerTask.java

/**
 * Invokes the finalize method for the component (if configured) and sets the render output for
 * the component to the returned method string (if method is not a void type)
 */// w  w  w .jav  a 2s  . c o m
@Override
protected void performLifecycleTask() {
    Component component = (Component) getElementState().getElement();
    String finalizeMethodToCall = component.getFinalizeMethodToCall();
    MethodInvoker finalizeMethodInvoker = component.getFinalizeMethodInvoker();

    if (StringUtils.isBlank(finalizeMethodToCall) && (finalizeMethodInvoker == null)) {
        return;
    }

    if (finalizeMethodInvoker == null) {
        finalizeMethodInvoker = new MethodInvoker();
    }

    // if method not set on invoker, use finalizeMethodToCall, note staticMethod could be set(don't know since
    // there is not a getter), if so it will override the target method in prepare
    if (StringUtils.isBlank(finalizeMethodInvoker.getTargetMethod())) {
        finalizeMethodInvoker.setTargetMethod(finalizeMethodToCall);
    }

    // if target class or object not set, use view helper service
    if ((finalizeMethodInvoker.getTargetClass() == null) && (finalizeMethodInvoker.getTargetObject() == null)) {
        finalizeMethodInvoker.setTargetObject(ViewLifecycle.getHelper());
    }

    // setup arguments for method
    List<Object> additionalArguments = component.getFinalizeMethodAdditionalArguments();
    if (additionalArguments == null) {
        additionalArguments = new ArrayList<Object>();
    }

    Object[] arguments = new Object[2 + additionalArguments.size()];
    arguments[0] = component;
    arguments[1] = ViewLifecycle.getModel();

    int argumentIndex = 1;
    for (Object argument : additionalArguments) {
        argumentIndex++;
        arguments[argumentIndex] = argument;
    }
    finalizeMethodInvoker.setArguments(arguments);

    // invoke finalize method
    try {
        LOG.debug("Invoking finalize method: " + finalizeMethodInvoker.getTargetMethod() + " for component: "
                + component.getId());
        finalizeMethodInvoker.prepare();

        Class<?> methodReturnType = finalizeMethodInvoker.getPreparedMethod().getReturnType();
        if (StringUtils.equals("void", methodReturnType.getName())) {
            finalizeMethodInvoker.invoke();
        } else {
            String renderOutput = (String) finalizeMethodInvoker.invoke();

            component.setSelfRendered(true);
            component.setRenderedHtmlOutput(renderOutput);
        }
    } catch (Exception e) {
        LOG.error("Error invoking finalize method for component: " + component.getId(), e);
        throw new RuntimeException("Error invoking finalize method for component: " + component.getId(), e);
    }
}

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