org.apache.camel.impl.engine

Class DefaultPackageScanClassResolver

java.lang.Object

org.apache.camel.support.service.ServiceSupport

org.apache.camel.impl.engine.DefaultPackageScanClassResolver

All Implemented Interfaces:

org.apache.camel.NonManagedService, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.PackageScanClassResolver, org.apache.camel.StatefulService, org.apache.camel.StaticService, org.apache.camel.SuspendableService

Direct Known Subclasses:

WebSpherePackageScanClassResolver

public class DefaultPackageScanClassResolver
extends org.apache.camel.support.service.ServiceSupport
implements org.apache.camel.spi.PackageScanClassResolver, org.apache.camel.NonManagedService

Default implement of PackageScanClassResolver

Field Summary

Fields

Modifier and Type	Field and Description
protected org.slf4j.Logger	log

Fields inherited from class org.apache.camel.support.service.ServiceSupport

FAILED, INITIALIZED, lock, NEW, SHUTDOWN, SHUTTINGDOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor and Description
DefaultPackageScanClassResolver()

Method Summary

Modifier and Type	Method and Description
void	addClassLoader(ClassLoader classLoader)
void	addFilter(org.apache.camel.spi.PackageScanFilter filter)
protected void	addIfMatching(org.apache.camel.spi.PackageScanFilter test, String fqn, Set<Class<?>> classes) Add the class designated by the fully qualified class name provided to the set of resolved classes if and only if it is approved by the Test supplied.
protected URL	customResourceLocator(URL url)
protected List<String>	doLoadJarClassEntries(InputStream stream, String urlPath) Loads all the class entries from the JAR.
protected void	doStart()
protected void	doStop()
protected void	find(org.apache.camel.spi.PackageScanFilter test, String packageName, ClassLoader loader, Set<Class<?>> classes)
protected void	find(org.apache.camel.spi.PackageScanFilter test, String packageName, Set<Class<?>> classes)
Set<Class<?>>	findAnnotated(Class<? extends Annotation> annotation, String... packageNames)
Set<Class<?>>	findAnnotated(Set<Class<? extends Annotation>> annotations, String... packageNames)
Set<Class<?>>	findByFilter(org.apache.camel.spi.PackageScanFilter filter, String... packageNames)
Set<Class<?>>	findImplementations(Class<?> parent, String... packageNames)
Set<ClassLoader>	getClassLoaders()
protected Enumeration<URL>	getResources(ClassLoader loader, String packageName) Strategy to get the resources by the given classloader.
boolean	isAcceptableScheme(String urlPath)
void	removeFilter(org.apache.camel.spi.PackageScanFilter filter)
void	setAcceptableSchemes(String schemes)

Methods inherited from class org.apache.camel.support.service.ServiceSupport

doInit, doResume, doShutdown, doSuspend, getStatus, init, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.camel.Service

init, start, stop

Field Detail

log

protected final org.slf4j.Logger log

Constructor Detail

DefaultPackageScanClassResolver

public DefaultPackageScanClassResolver()

Method Detail

addClassLoader

public void addClassLoader(ClassLoader classLoader)

Specified by:

addClassLoader in interface org.apache.camel.spi.PackageScanClassResolver

addFilter

public void addFilter(org.apache.camel.spi.PackageScanFilter filter)

Specified by:

addFilter in interface org.apache.camel.spi.PackageScanClassResolver

removeFilter

public void removeFilter(org.apache.camel.spi.PackageScanFilter filter)

Specified by:

removeFilter in interface org.apache.camel.spi.PackageScanClassResolver

setAcceptableSchemes

public void setAcceptableSchemes(String schemes)

isAcceptableScheme

public boolean isAcceptableScheme(String urlPath)

getClassLoaders

public Set<ClassLoader> getClassLoaders()

Specified by:

getClassLoaders in interface org.apache.camel.spi.PackageScanClassResolver

findAnnotated

public Set<Class<?>> findAnnotated(Class<? extends Annotation> annotation,
                                   String... packageNames)

Specified by:

findAnnotated in interface org.apache.camel.spi.PackageScanClassResolver

findAnnotated

public Set<Class<?>> findAnnotated(Set<Class<? extends Annotation>> annotations,
                                   String... packageNames)

Specified by:

findAnnotated in interface org.apache.camel.spi.PackageScanClassResolver

findImplementations

public Set<Class<?>> findImplementations(Class<?> parent,
                                         String... packageNames)

Specified by:

findImplementations in interface org.apache.camel.spi.PackageScanClassResolver

findByFilter

public Set<Class<?>> findByFilter(org.apache.camel.spi.PackageScanFilter filter,
                                  String... packageNames)

Specified by:

findByFilter in interface org.apache.camel.spi.PackageScanClassResolver

find

protected void find(org.apache.camel.spi.PackageScanFilter test,
                    String packageName,
                    Set<Class<?>> classes)

find

protected void find(org.apache.camel.spi.PackageScanFilter test,
                    String packageName,
                    ClassLoader loader,
                    Set<Class<?>> classes)

customResourceLocator

protected URL customResourceLocator(URL url)
                             throws IOException

Throws:

IOException

getResources

protected Enumeration<URL> getResources(ClassLoader loader,
                                        String packageName)
                                 throws IOException

Strategy to get the resources by the given classloader.

Notice that in WebSphere platforms there is a WebSpherePackageScanClassResolver to take care of WebSphere's oddity of resource loading.

Parameters:

loader - the classloader

packageName - the packagename for the package to load

Returns:

URL's for the given package

Throws:

IOException - is thrown by the classloader

doLoadJarClassEntries

protected List<String> doLoadJarClassEntries(InputStream stream,
                                             String urlPath)

Loads all the class entries from the JAR.

Parameters:

stream - the inputstream of the jar file to be examined for classes

urlPath - the url of the jar file to be examined for classes

Returns:

all the .class entries from the JAR

addIfMatching

protected void addIfMatching(org.apache.camel.spi.PackageScanFilter test,
                             String fqn,
                             Set<Class<?>> classes)

Add the class designated by the fully qualified class name provided to the set of resolved classes if and only if it is approved by the Test supplied.

Parameters:

test - the test used to determine if the class matches

fqn - the fully qualified name of a class

doStart

protected void doStart()
                throws Exception

Specified by:

doStart in class org.apache.camel.support.service.ServiceSupport

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Specified by:

doStop in class org.apache.camel.support.service.ServiceSupport

Throws:

Exception