Example usage for org.springframework.aop.framework AdvisedSupport EMPTY_TARGET_SOURCE

Introduction

In this page you can find the example usage for org.springframework.aop.framework AdvisedSupport EMPTY_TARGET_SOURCE.

Prototype

TargetSource EMPTY_TARGET_SOURCE

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Document

Canonical TargetSource when there's no target, and behavior is supplied by the advisors.

Usage

From source file:org.springframework.aop.framework.Cglib2AopProxy.java

/**
 * Create a new Cglib2AopProxy for the given AOP configuration.
 * @throws AopConfigException if the config is invalid. We try to throw an informative
 * exception in this case, rather than let a mysterious failure happen later.
 *///from w  ww.  jav  a  2  s  .c  o m
protected Cglib2AopProxy(AdvisedSupport config) throws AopConfigException {
    if (config == null) {
        throw new AopConfigException("Cannot create AopProxy with null ProxyConfig");
    }
    if (config.getAdvisors().length == 0 && config.getTargetSource() == AdvisedSupport.EMPTY_TARGET_SOURCE) {
        throw new AopConfigException("Cannot create AopProxy with no advisors and no target source");
    }
    //DK - is this check really necessary?
    //should this 'config.getTargetSource() == AdvisedSupport.EMPTY_TARGET_SOURCE' be enough?
    if (config.getTargetSource().getTargetClass() == null) {
        throw new AopConfigException("Either an interface or a target is required for proxy creation");
    }
    this.advised = config;
}

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From source file:org.springframework.aop.framework.CglibAopProxy.java

/**
 * Create a new CglibAopProxy for the given AOP configuration.
 * @param config the AOP configuration as AdvisedSupport object
 * @throws AopConfigException if the config is invalid. We try to throw an informative
 * exception in this case, rather than let a mysterious failure happen later.
 *///www  .  j a v a2  s .c o m
public CglibAopProxy(AdvisedSupport config) throws AopConfigException {
    Assert.notNull(config, "AdvisedSupport must not be null");
    if (config.getAdvisors().length == 0 && config.getTargetSource() == AdvisedSupport.EMPTY_TARGET_SOURCE) {
        throw new AopConfigException("No advisors and no TargetSource specified");
    }
    this.advised = config;
    this.advisedDispatcher = new AdvisedDispatcher(this.advised);
}

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From source file:org.springframework.aop.framework.JdkDynamicAopProxy.java

/**
 * Construct a new JdkDynamicAopProxy for the given AOP configuration.
 * @param config the AOP configuration as AdvisedSupport object
 * @throws AopConfigException if the config is invalid. We try to throw an informative
 * exception in this case, rather than let a mysterious failure happen later.
 *///from w w w .java 2 s  .c om
public JdkDynamicAopProxy(AdvisedSupport config) throws AopConfigException {
    Assert.notNull(config, "AdvisedSupport must not be null");
    if (config.getAdvisors().length == 0 && config.getTargetSource() == AdvisedSupport.EMPTY_TARGET_SOURCE) {
        throw new AopConfigException("No advisors and no TargetSource specified");
    }
    this.advised = config;
}

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From source file:org.springframework.aop.framework.OptimizedJdkDynamicAopProxy.java

/**
 * Construct a new JDK proxy./*from  w  w  w  . j a  v a 2  s .  co  m*/
 * @throws AopConfigException if the config is invalid. We try
 * to throw an informative exception in this case, rather than let
 * a mysterious failure happen later.
 */
protected OptimizedJdkDynamicAopProxy(AdvisedSupport config) throws AopConfigException {
    if (config == null)
        throw new AopConfigException("Cannot create AopProxy with null ProxyConfig");
    if (config.getAdvisors().length == 0 && config.getTargetSource() == AdvisedSupport.EMPTY_TARGET_SOURCE)
        throw new AopConfigException("Cannot create AopProxy with no advisors and no target source");
    this.advised = config;
    this.advisors = config.getAdvisors();

    if (!config.targetSource.isStatic()) {
        throw new AopConfigException("Can't use Optimized JDK proxy with non-static target source");
    }
    if (config.exposeProxy) {
        throw new AopConfigException("Can't use Optimized JDK proxy if proxy needs to be exposed");
    }

    try {
        // TODO must be frozen
        System.err.println("Caching lockable target");
        this.target = config.targetSource.getTarget();
        this.targetClass = target.getClass();
    } catch (Exception ex) {
        throw new AopConfigException("Can't obtain target from static TargetSource", ex);
    }
}

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