Example usage for org.apache.commons.discovery.tools DiscoverClass DiscoverClass

Introduction

In this page you can find the example usage for org.apache.commons.discovery.tools DiscoverClass DiscoverClass.

Prototype

public DiscoverClass() 

Source Link

Document

Create a class instance with dynamic environment (thread context class loader is determined on each call).

Usage

From source file:info.magnolia.cms.util.FactoryUtil.java

public static Object getInstance(Class interf) {
    try {/*w ww . ja  v a2s  . c om*/
        return new DiscoverClass().newInstance(interf, props);
    } catch (Exception e) {
        log.error("can't instantiate an implementation of this class [" + interf.getName() + "]");
    }
    return null;
}

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From source file:at.gv.egovernment.moa.spss.api.Configurator.java

public static synchronized Configurator getInstance() {
    if (instance == null) {
        try {//from  w  w w . java2  s. co  m
            DiscoverClass discover = new DiscoverClass();
            instance = (Configurator) discover.newInstance(Configurator.class, DEFAULT_IMPLEMENTATION);
        } catch (Exception e) {
            // this can not happen since we provide a valid default 
            // implementation
        }
    }
    return instance;
}

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From source file:at.gv.egovernment.moa.spss.api.SignatureCreationService.java

/**
 * Get an instance of the <code>SignatureCreationService</code>.
 * /*from  ww  w. j  a  va 2  s .c  o  m*/
 * @return A concrete instance of the <code>SignatureCreationService</code>.
 */
public static synchronized SignatureCreationService getInstance() {
    if (instance == null) {
        try {
            DiscoverClass discover = new DiscoverClass();
            instance = (SignatureCreationService) discover.newInstance(SignatureCreationService.class,
                    DEFAULT_IMPLEMENTATION);
        } catch (Exception e) {
            // this can not happen since we provide a valid default 
            // implementation
        }
    }
    return instance;
}

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From source file:at.gv.egovernment.moa.spss.api.SignatureVerificationService.java

/**
 * Get an instance of the <code>SignatureVerificationService</code>.
 * /*www.j a v a 2s .c o m*/
 * @return A concrete instance of the 
 * <code>SignatureVerificationService</code>.
 */
public static synchronized SignatureVerificationService getInstance() {
    if (instance == null) {
        try {
            DiscoverClass discover = new DiscoverClass();
            instance = (SignatureVerificationService) discover.newInstance(SignatureVerificationService.class,
                    DEFAULT_IMPLEMENTATION);
        } catch (Exception e) {
            // this can not happen since we provide a valid default 
            // implementation
        }
    }
    return instance;
}

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From source file:at.gv.egovernment.moa.spss.api.SPSSFactory.java

/**
 * Returns the single instance of this class.
 * /*from w ww. j a v  a2  s  .  co  m*/
 * @return The single instance of this class.
 */
public static synchronized SPSSFactory getInstance() {
    if (instance == null) {
        try {
            DiscoverClass discover = new DiscoverClass();
            instance = (SPSSFactory) discover.newInstance(SPSSFactory.class, DEFAULT_IMPLEMENTATION);
        } catch (Exception e) {
            // this can not happen since we provide a valid default 
            // implementation
        }
    }
    return instance;
}

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From source file:com.netspective.commons.acl.AccessControlListTest.java

public void testAuthenticatedUser() throws DataModelException, InvocationTargetException,
        InstantiationException, NoSuchMethodException, IllegalAccessException, IOException {
    AccessControlListsComponent aclc = (AccessControlListsComponent) XdmComponentFactory.get(
            AccessControlListsComponent.class, new Resource(AccessControlListTest.class, RESOURCE_NAME_THREE),
            XdmComponentFactory.XDMCOMPFLAGS_DEFAULT);

    // Verify _something_ was loaded...
    assertNotNull(aclc);/*from  w  w  w .  j a  va  2 s . c  o  m*/

    // ValueContext Created User...
    ValueContext vcOne = ValueSources.getInstance().createDefaultValueContext();
    assertNotNull(vcOne);

    Class authUserClass = new DiscoverClass().find(AuthenticatedUser.class,
            BasicAuthenticatedUser.class.getName());
    MutableAuthenticatedUser userOne = (MutableAuthenticatedUser) authUserClass.newInstance();
    assertNotNull(userOne);

    userOne.setUserId("admin");
    assertEquals("admin", userOne.getUserId());
    assertEquals("admin", userOne.getName());

    userOne.setUserName("Administrator");
    assertEquals("Administrator", userOne.getUserName());

    // Independently created User...
    ValueContext vcTwo = ValueSources.getInstance().createDefaultValueContext();
    MutableAuthenticatedUser userTwo = new BasicAuthenticatedUser();
    userTwo.setUserId("admin");
    userTwo.setUserName("Administrator");

    assertEquals("admin", userTwo.getUserId());
    assertEquals("Administrator", userTwo.getUserName());

    //TODO: Implement setAuthenticatedUser (and getAuthenticatedUser) and _then_ enable these lines
    /*
           vcTwo.setAuthenticatedUser(userTwo);
           assertEquals(userTwo, vcTwo.getAuthenticatedUser());
    */

    // Alternate constructor
    ValueContext vcThree = ValueSources.getInstance().createDefaultValueContext();
    MutableAuthenticatedUser userThree = new BasicAuthenticatedUser();
    userThree.setUserId("admin");
    userThree.setUserName("Administrator");

    assertEquals("admin", userThree.getUserId());
    assertEquals("Administrator", userThree.getUserName());

    //TODO: Implement setAuthenticatedUser (and getAuthenticatedUser) and _then_ enable these lines
    /*
           vcThree.setAuthenticatedUser(userThree);
           assertEquals(userThree, vcThree.getAuthenticatedUser());
    */
}

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From source file:org.apache.beehive.controls.api.bean.Controls.java

/**
 * Factory method for instantiating controls.
 *
 * @param beanClass the ControlBean class to instantiate
 * @param props an optional PropertyMap containing initial property values for the control.  
 * may be null.//from ww  w .  j  a  va2 s.  com
 * @param context the ControlBeanContext that will nest the created control.  If null, the 
 * thread-local context (possibly none) will be used.
 * @param id a unique ID for the created control.  If null, an ID will be auto-generated.
 * @return an instance of the specified ControlBean.
 */
public static <T extends ControlBean> T instantiate(Class<T> beanClass, PropertyMap props,
        ControlBeanContext context, String id) {
    try {
        DiscoverClass discoverer = new DiscoverClass();
        Class factoryClass = discoverer.find(ControlFactory.class, DEFAULT_FACTORY_CLASS);
        ControlFactory factory = (ControlFactory) factoryClass.newInstance();
        return factory.instantiate(beanClass, props, context, id);
    } catch (Exception e) {
        throw new ControlException("Exception creating ControlBean", e);
    }
}

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From source file:org.apache.beehive.controls.runtime.bean.ControlBean.java

/**
 * Internal method used to lookup a ControlBeanContextFactory.  This factory is used to create the
 * ControlBeanContext object for this ControlBean.  The factory is discoverable from either the containing
 * ControlBeanContext object or from the environment.  If the containing CBC object exposes a
 * contextual service of type {@link ControlBeanContextFactory}, the factory returned from this will
 * be used to create a ControlBeanContext object.
 *
 * @param context//from   w  w  w  .  ja  va  2 s . c o  m
 * @return the ControlBeanContextFactory discovered in the environment or a default one if no factory is configured
 */
private ControlBeanContextFactory lookupControlBeanContextFactory(
        org.apache.beehive.controls.api.context.ControlBeanContext context) {

    // first, try to find the CBCFactory from the container
    if (context != null) {
        ControlBeanContextFactory cbcFactory = context.getService(ControlBeanContextFactory.class, null);

        if (cbcFactory != null) {
            return cbcFactory;
        }
    }

    // Create the context that acts as the BeanContextProxy for this bean (the context that this bean _defines_).
    try {
        DiscoverClass discoverer = new DiscoverClass();
        Class factoryClass = discoverer.find(ControlBeanContextFactory.class,
                DefaultControlBeanContextFactory.class.getName());

        return (ControlBeanContextFactory) factoryClass.newInstance();
    } catch (Exception e) {
        throw new ControlException("Exception creating ControlBeanContext", e);
    }
}

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