Examples of java.lang.instrument.Instrumentation.addTransformer()

Class java.lang.instrument.Instrumentation

Examples of java.lang.instrument.Instrumentation.addTransformer()

java.lang.instrument.Instrumentation.addTransformer()
Registers the supplied transformer. All future class definitions will be seen by the transformer, except definitions of classes upon which any registered transformer is dependent. The transformer is called when classes are loaded, when they are {@linkplain #redefineClasses redefined}. and if canRetransform is true, when they are {@linkplain #retransformClasses retransformed}. See {@link java.lang.instrument.ClassFileTransformer#transform ClassFileTransformer.transform} for the orderof transform calls. If a transformer throws an exception during execution, the JVM will still call the other registered transformers in order. The same transformer may be added more than once, but it is strongly discouraged -- avoid this by creating a new instance of tranformer class.
This method is intended for use in instrumentation, as described in the {@linkplain Instrumentation class specification}. @param transformer the transformer to register @param canRetransform can this transformer's transformations be retransformed @throws java.lang.NullPointerException if passed a null transformer @throws java.lang.UnsupportedOperationException if canRetransform is true and the current configuration of the JVM does not allow retransformation ( {@link #isRetransformClassesSupported} is false) @since 1.6


    private static class Handler implements PersistenceClassLoaderHandler {
        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(new Transformer(classFileTransformer));
            }
        }


        public void destroy(String unitId) {
        }

View Full Code Here

        PersistenceClassLoaderHandler persistenceClassLoaderHandler = new PersistenceClassLoaderHandler() {


            public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
                Instrumentation instrumentation = Agent.getInstrumentation();
                if (instrumentation != null) {
                    instrumentation.addTransformer(new ControllableTransformer(classFileTransformer));
                }
            }


            public void destroy(String unitId) {
            }

View Full Code Here

        private final Map<String,List<ClassFileTransformer>> transformers = new TreeMap<String, List<ClassFileTransformer>> ();


        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(classFileTransformer);


                if (unitId != null) {
                    List<ClassFileTransformer> transformers = this.transformers.get(unitId);
                    if (transformers == null) {
                        transformers = new ArrayList<ClassFileTransformer>(1);

View Full Code Here

        private final Map<String,List<ClassFileTransformer>> transformers = new TreeMap<String,List<ClassFileTransformer>>();


        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(classFileTransformer);


                if (unitId != null) {
                    List<ClassFileTransformer> transformers = this.transformers.get(unitId);
                    if (transformers == null) {
                        transformers = new ArrayList<ClassFileTransformer>(1);

View Full Code Here

        if (i == null) {
            throw new IllegalStateException("Attempt to add a transformer failed - "
                    + "instrumentation is not initialized.");
        }


        i.addTransformer(transformerWrapper);
    }


    protected Log getLogger() {
        if (logger == null) {
            logger = LogFactory.getLog(getClass());

View Full Code Here

        private final Map<String,List<ClassFileTransformer>> transformers = new TreeMap<String, List<ClassFileTransformer>> ();


        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(classFileTransformer);


                if (unitId != null) {
                    List<ClassFileTransformer> transformers = this.transformers.get(unitId);
                    if (transformers == null) {
                        transformers = new ArrayList<ClassFileTransformer>(1);

View Full Code Here

public class PurrPackagePremainTest extends Assert {


    @Test
    public void testPremain() {
        Instrumentation i = EasyMock.createMock( Instrumentation.class );
        i.addTransformer( EasyMock.anyObject( SimpleInstrumenter.class ) );
        EasyMock.expectLastCall();
        EasyMock.replay( i );
        PurrPackagePremain.premain( null, i );
        EasyMock.verify( i );
    }

View Full Code Here

    Instrumentation instrumentation = InstrumentationSavingAgent.getInstrumentation();
    if (instrumentation == null) {
      throw new IllegalStateException(
          "Must start with Java agent to use InstrumentationLoadTimeWeaver. See Spring documentation.");
    }
    instrumentation.addTransformer(transformer);
  }


  /**
   * We have the ability to weave the current class loader when starting the
   * JVM in this way, so the instrumentable class loader will always be the

View Full Code Here

    Instrumentation instrumentation = InstrumentationSavingAgent.getInstrumentation();
    if (instrumentation == null) {
      throw new IllegalStateException(
          "Must start with Java agent to use InstrumentationLoadTimeWeaver. See Spring documentation.");
    }
    instrumentation.addTransformer(transformer);
  }


  /**
   * We have the ability to weave the current class loader when starting the
   * JVM in this way, so the instrumentable class loader will always be the

View Full Code Here


    private static class Handler implements PersistenceClassLoaderHandler {
        public void addTransformer(String unitId, ClassLoader classLoader, ClassFileTransformer classFileTransformer) {
            Instrumentation instrumentation = Agent.getInstrumentation();
            if (instrumentation != null) {
                instrumentation.addTransformer(new Transformer(classFileTransformer));
            }
        }


        public void destroy(String unitId) {
        }

View Full Code Here

0 1 2 3 4

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.