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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
MetaMethod.java | 0% | 0% | 0% | 0% |
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/*
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* $Id: MetaMethod.java,v 1.14 2004/07/10 03:31:36 bran Exp $
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*
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* Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
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*
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* Redistribution and use of this software and associated documentation
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* ("Software"), with or without modification, are permitted provided that the
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* following conditions are met:
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* 1. Redistributions of source code must retain copyright statements and
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* notices. Redistributions must also contain a copy of this document.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name "groovy" must not be used to endorse or promote products
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* derived from this Software without prior written permission of The Codehaus.
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* For written permission, please contact info@codehaus.org.
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* 4. Products derived from this Software may not be called "groovy" nor may
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* "groovy" appear in their names without prior written permission of The
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* Codehaus. "groovy" is a registered trademark of The Codehaus.
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* 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
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*
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* THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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*/
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package groovy.lang;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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import java.security.AccessController;
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import java.security.PrivilegedAction;
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import java.util.logging.Logger;
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import org.codehaus.groovy.runtime.InvokerHelper;
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import org.codehaus.groovy.runtime.Reflector;
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/**
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* Represents a Method on a Java object a little like {@link java.lang.reflect.Method}
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* except without using reflection to invoke the method
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*
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* @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
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* @version $Revision: 1.14 $
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*/
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public class MetaMethod implements Cloneable { |
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private static final Logger log = Logger.getLogger(MetaMethod.class.getName()); |
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private String name;
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private Class declaringClass;
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private Class interfaceClass;
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private Class[] parameterTypes;
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private Class returnType;
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private int modifiers; |
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private Reflector reflector;
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private int methodIndex; |
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private Method method;
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public MetaMethod(String name, Class declaringClass, Class[] parameterTypes, Class returnType, int modifiers) { |
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this.name = name;
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this.declaringClass = declaringClass;
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this.parameterTypes = parameterTypes;
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this.returnType = returnType;
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this.modifiers = modifiers;
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} |
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public MetaMethod(Method method) {
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this(
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method.getName(), |
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method.getDeclaringClass(), |
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method.getParameterTypes(), |
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method.getReturnType(), |
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method.getModifiers()); |
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this.method = method;
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} |
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public MetaMethod(MetaMethod metaMethod) {
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this(metaMethod.method);
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} |
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/**
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* Checks that the given parameters are valid to call this method
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*
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* @param arguments
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* @throws IllegalArgumentException if the parameters are not valid
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*/
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public void checkParameters(Class[] arguments) { |
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// lets check that the argument types are valid
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if (!MetaClass.isValidMethod(getParameterTypes(), arguments, false)) { |
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throw new IllegalArgumentException( |
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"Parameters to method: "
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+ getName() |
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+ " do not match types: "
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+ InvokerHelper.toString(getParameterTypes()) |
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+ " for arguments: "
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+ InvokerHelper.toString(arguments)); |
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} |
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} |
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public Object invoke(Object object, Object[] arguments) throws Exception { |
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if (reflector != null) { |
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return reflector.invoke(this, object, arguments); |
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} |
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else {
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AccessController.doPrivileged(new PrivilegedAction() {
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public Object run() {
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method.setAccessible(true);
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return null; |
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} |
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}); |
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return method.invoke(object, arguments);
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} |
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} |
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public Class getDeclaringClass() {
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return declaringClass;
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} |
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public int getMethodIndex() { |
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return methodIndex;
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} |
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public void setMethodIndex(int methodIndex) { |
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this.methodIndex = methodIndex;
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} |
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public int getModifiers() { |
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return modifiers;
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} |
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public String getName() {
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return name;
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} |
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public Class[] getParameterTypes() {
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return parameterTypes;
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} |
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147 | 0 |
public Class getReturnType() {
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return returnType;
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} |
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public Reflector getReflector() {
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return reflector;
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} |
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public void setReflector(Reflector reflector) { |
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this.reflector = reflector;
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} |
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public boolean isMethod(Method method) { |
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return name.equals(method.getName())
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&& modifiers == method.getModifiers() |
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&& returnType.equals(method.getReturnType()) |
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&& equal(parameterTypes, method.getParameterTypes()); |
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} |
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protected boolean equal(Class[] a, Class[] b) { |
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if (a.length == b.length) {
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for (int i = 0, size = a.length; i < size; i++) { |
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if (!a[i].equals(b[i])) {
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return false; |
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} |
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} |
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return true; |
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} |
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return false; |
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} |
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public String toString() {
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return super.toString() |
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+ "[name: "
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+ name |
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+ " params: "
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+ InvokerHelper.toString(parameterTypes) |
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+ " returns: "
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+ returnType |
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+ " owner: "
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+ declaringClass |
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+ "]";
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} |
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public Object clone() {
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try {
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return super.clone(); |
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} |
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catch (CloneNotSupportedException e) {
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throw new GroovyRuntimeException("This should never happen", e); |
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} |
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} |
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public boolean isStatic() { |
201 | 0 |
return (modifiers & Modifier.STATIC) != 0;
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} |
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public boolean isPrivate() { |
205 | 0 |
return (modifiers & Modifier.PRIVATE) != 0;
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} |
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public boolean isProtected() { |
209 | 0 |
return (modifiers & Modifier.PROTECTED) != 0;
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} |
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public boolean isPublic() { |
213 | 0 |
return (modifiers & Modifier.PUBLIC) != 0;
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} |
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/**
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* @return true if the given method has the same name, parameters, return type
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* and modifiers but may be defined on another type
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*/
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public boolean isSame(MetaMethod method) { |
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return name.equals(method.getName())
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&& compatibleModifiers(modifiers, method.getModifiers()) |
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&& returnType.equals(method.getReturnType()) |
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&& equal(parameterTypes, method.getParameterTypes()); |
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} |
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227 | 0 |
protected boolean compatibleModifiers(int modifiersA, int modifiersB) { |
228 | 0 |
int mask = Modifier.PRIVATE | Modifier.PROTECTED | Modifier.PUBLIC | Modifier.STATIC;
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return (modifiersA & mask) == (modifiersB & mask);
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} |
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232 | 0 |
public Class getInterfaceClass() {
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return interfaceClass;
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} |
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236 | 0 |
public void setInterfaceClass(Class interfaceClass) { |
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this.interfaceClass = interfaceClass;
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} |
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240 | 0 |
public boolean isCacheable() { |
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return true; |
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} |
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} |
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