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authorMartin Ritchie <ritchiem@apache.org>2008-07-17 16:14:08 +0000
committerMartin Ritchie <ritchiem@apache.org>2008-07-17 16:14:08 +0000
commit1cd4b095536f8b8325e8db3e9541a5f560af0435 (patch)
treef69c2b0e7547610623c171f073a06be14622c204 /java/common/src
parent335399e4574a0676148ed82daea80f008a5484e7 (diff)
downloadqpid-python-1cd4b095536f8b8325e8db3e9541a5f560af0435.tar.gz
Moved the Reflection Wrapping code used by the system tests to the system test. If they are left in common then we must include the common directory when using the systest-testing frameworks no matter the version of Qpid being tested. Whilst this is probably not a problem as long as the classpath is carefully set up it does introduce another potential uncertainty to any test failure.
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@677629 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/common/src')
-rw-r--r--java/common/src/main/java/org/apache/qpid/util/ReflectionUtils.java228
-rw-r--r--java/common/src/main/java/org/apache/qpid/util/ReflectionUtilsException.java44
2 files changed, 0 insertions, 272 deletions
diff --git a/java/common/src/main/java/org/apache/qpid/util/ReflectionUtils.java b/java/common/src/main/java/org/apache/qpid/util/ReflectionUtils.java
deleted file mode 100644
index 28fb2e0c8a..0000000000
--- a/java/common/src/main/java/org/apache/qpid/util/ReflectionUtils.java
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-package org.apache.qpid.util;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-/**
- * Provides helper methods for operating on classes and methods using reflection. Reflection methods tend to return
- * a lot of checked exception so writing code to use them can be tedious and harder to read, especially when such errors
- * are not expected to occur. This class always works with {@link ReflectionUtilsException}, which is a runtime exception,
- * to wrap the checked exceptions raised by the standard Java reflection methods. Code using it does not normally
- * expect these errors to occur, usually does not have a recovery mechanism for them when they do, but is cleaner,
- * quicker to write and easier to read in the majority of cases.
- *
- * <p/><table id="crc"><caption>CRC Card</caption>
- * <tr><th> Responsibilities <th> Collaborations
- * <tr><td> Look up Classes by name.
- * <tr><td> Instantiate Classes by no-arg constructor.
- * </table>
- */
-public class ReflectionUtils
-{
- /**
- * Gets the Class object for a named class.
- *
- * @param className The class to get the Class object for.
- *
- * @return The Class object for the named class.
- */
- public static Class<?> forName(String className)
- {
- try
- {
- return Class.forName(className);
- }
- catch (ClassNotFoundException e)
- {
- throw new ReflectionUtilsException("ClassNotFoundException whilst finding class.", e);
- }
- }
-
- /**
- * Creates an instance of a Class, instantiated through its no-args constructor.
- *
- * @param cls The Class to instantiate.
- * @param <T> The Class type.
- *
- * @return An instance of the class.
- */
- public static <T> T newInstance(Class<? extends T> cls)
- {
- try
- {
- return cls.newInstance();
- }
- catch (InstantiationException e)
- {
- throw new ReflectionUtilsException("InstantiationException whilst instantiating class.", e);
- }
- catch (IllegalAccessException e)
- {
- throw new ReflectionUtilsException("IllegalAccessException whilst instantiating class.", e);
- }
- }
-
- /**
- * Calls a named method on an object with a specified set of parameters, any Java access modifier are overridden.
- *
- * @param o The object to call.
- * @param method The method name to call.
- * @param params The parameters to pass.
- * @param paramClasses The argument types.
- *
- * @return The return value from the method call.
- */
- public static Object callMethodOverridingIllegalAccess(Object o, String method, Object[] params, Class[] paramClasses)
- {
- // Get the objects class.
- Class cls = o.getClass();
-
- // Get the classes of the parameters.
- /*Class[] paramClasses = new Class[params.length];
-
- for (int i = 0; i < params.length; i++)
- {
- paramClasses[i] = params[i].getClass();
- }*/
-
- try
- {
- // Try to find the matching method on the class.
- Method m = cls.getDeclaredMethod(method, paramClasses);
-
- // Make it accessible.
- m.setAccessible(true);
-
- // Invoke it with the parameters.
- return m.invoke(o, params);
- }
- catch (NoSuchMethodException e)
- {
- throw new ReflectionUtilsException("NoSuchMethodException.", e);
- }
- catch (IllegalAccessException e)
- {
- throw new ReflectionUtilsException("IllegalAccessException.", e);
- }
- catch (InvocationTargetException e)
- {
- throw new ReflectionUtilsException("InvocationTargetException", e);
- }
- }
-
- /**
- * Calls a named method on an object with a specified set of parameters.
- *
- * @param o The object to call.
- * @param method The method name to call.
- * @param params The parameters to pass.
- *
- * @return The return value from the method call.
- */
- public static Object callMethod(Object o, String method, Object[] params)
- {
- // Get the objects class.
- Class cls = o.getClass();
-
- // Get the classes of the parameters.
- Class[] paramClasses = new Class[params.length];
-
- for (int i = 0; i < params.length; i++)
- {
- paramClasses[i] = params[i].getClass();
- }
-
- try
- {
- // Try to find the matching method on the class.
- Method m = cls.getMethod(method, paramClasses);
-
- // Invoke it with the parameters.
- return m.invoke(o, params);
- }
- catch (NoSuchMethodException e)
- {
- throw new ReflectionUtilsException("NoSuchMethodException.", e);
- }
- catch (IllegalAccessException e)
- {
- throw new ReflectionUtilsException("IllegalAccessException", e);
- }
- catch (InvocationTargetException e)
- {
- throw new ReflectionUtilsException("InvocationTargetException", e);
- }
- }
-
- /**
- * Calls a constuctor witht the specified arguments.
- *
- * @param constructor The constructor.
- * @param args The arguments.
- * @param <T> The Class type.
- *
- * @return An instance of the class that the constructor is for.
- */
- public static <T> T newInstance(Constructor<T> constructor, Object[] args)
- {
- try
- {
- return constructor.newInstance(args);
- }
- catch (InstantiationException e)
- {
- throw new ReflectionUtilsException("InstantiationException", e);
- }
- catch (IllegalAccessException e)
- {
- throw new ReflectionUtilsException("IllegalAccessException", e);
- }
- catch (InvocationTargetException e)
- {
- throw new ReflectionUtilsException("InvocationTargetException", e);
- }
- }
-
- /**
- * Gets the constructor of a class that takes the specified set of arguments if any matches. If no matching
- * constructor is found then a runtime exception is raised.
- *
- * @param cls The class to get a constructor from.
- * @param args The arguments to match.
- * @param <T> The class type.
- *
- * @return The constructor.
- */
- public static <T> Constructor<T> getConstructor(Class<T> cls, Class[] args)
- {
- try
- {
- return cls.getConstructor(args);
- }
- catch (NoSuchMethodException e)
- {
- throw new ReflectionUtilsException("NoSuchMethodException", e);
- }
- }
-}
diff --git a/java/common/src/main/java/org/apache/qpid/util/ReflectionUtilsException.java b/java/common/src/main/java/org/apache/qpid/util/ReflectionUtilsException.java
deleted file mode 100644
index c2862a755b..0000000000
--- a/java/common/src/main/java/org/apache/qpid/util/ReflectionUtilsException.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-package org.apache.qpid.util;
-
-/**
- * Wraps a checked exception that occurs when {@link ReflectionUtils} encounters checked exceptions using standard
- * Java reflection methods.
- *
- * <p/><table id="crc"><caption>CRC Card</caption>
- * <tr><th> Responsibilities <th> Collaborations
- * <tr><td> Wrap a checked reflection exception.
- * </table>
- */
-public class ReflectionUtilsException extends RuntimeException
-{
- /**
- * Creates a runtime reflection exception, from a checked one.
- *
- * @param message The message.
- * @param cause The causing exception.
- */
- public ReflectionUtilsException(String message, Throwable cause)
- {
- super(message, cause);
- }
-}