Package org.apache.camel.spi

Interface ClassResolver

  • public interface ClassResolver
    A class resolver for loading classes in a loosly coupled manner to cater for different platforms such as standalone, web container, j2ee container and OSGi platforms.

    • Method Detail

      • addClassLoader

        void addClassLoader​(ClassLoader classLoader)
        Adds a custom class loader to use.
        Parameters:
        classLoader - a custom class loader

      • resolveClass

        Class<?> resolveClass​(String name)
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        Returns:
        the class if resolved, null if not found.

      • resolveClass

        <T> Class<T> resolveClass​(String name,
                          Class<T> type)
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        type - the expected type of the class
        Returns:
        the class if resolved, null if not found.

      • resolveClass

        Class<?> resolveClass​(String name,
                      ClassLoader loader)
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        loader - use the provided class loader
        Returns:
        the class if resolved, null if not found.

      • resolveClass

        <T> Class<T> resolveClass​(String name,
                          Class<T> type,
                          ClassLoader loader)
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        type - the expected type of the class
        loader - use the provided class loader
        Returns:
        the class if resolved, null if not found.

      • resolveMandatoryClass

        Class<?> resolveMandatoryClass​(String name)
                        throws ClassNotFoundException
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        Returns:
        the class if resolved, null if not found.
        Throws:
        ClassNotFoundException - is thrown if class not found

      • resolveMandatoryClass

        <T> Class<T> resolveMandatoryClass​(String name,
                                   Class<T> type)
                            throws ClassNotFoundException
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        type - the expected type of the class
        Returns:
        the class if resolved, null if not found.
        Throws:
        ClassNotFoundException - is thrown if class not found

      • resolveMandatoryClass

        Class<?> resolveMandatoryClass​(String name,
                               ClassLoader loader)
                        throws ClassNotFoundException
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        loader - use the provided class loader
        Returns:
        the class if resolved, null if not found.
        Throws:
        ClassNotFoundException - is thrown if class not found

      • resolveMandatoryClass

        <T> Class<T> resolveMandatoryClass​(String name,
                                   Class<T> type,
                                   ClassLoader loader)
                            throws ClassNotFoundException
        Resolves the given class by its name
        Parameters:
        name - full qualified name of class
        type - the expected type of the class
        loader - use the provided class loader
        Returns:
        the class if resolved, null if not found.
        Throws:
        ClassNotFoundException - is thrown if class not found

      • loadResourceAsStream

        InputStream loadResourceAsStream​(String uri)
        Loads the given resource as a stream
        Parameters:
        uri - the uri of the resource
        Returns:
        as a stream

      • loadResourceAsURL

        URL loadResourceAsURL​(String uri)
        Loads the given resource as a URL
        Parameters:
        uri - the uri of the resource
        Returns:
        as a URL

      • loadResourcesAsURL

        Enumeration<URL> loadResourcesAsURL​(String uri)
        Loads the given resources as a URL from the current bundle/classloader
        Parameters:
        uri - the uri of the resource
        Returns:
        the URLs found on the classpath

      • loadAllResourcesAsURL

        Enumeration<URL> loadAllResourcesAsURL​(String uri)
        Loads the given resources as a URL from all bundles/classloaders
        Parameters:
        uri - the uri of the resource
        Returns:
        the URLs found on the classpath