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org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite Maven / Gradle / Ivy
/*
* Copyright 2003-2007 the original author or authors.
*
* Licensed 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.codehaus.groovy.runtime.callsite;
import groovy.lang.GroovyRuntimeException;
import groovy.lang.MetaClassImpl;
import groovy.lang.MetaMethod;
import org.codehaus.groovy.reflection.CachedMethod;
import org.codehaus.groovy.runtime.GroovyCategorySupport;
import org.codehaus.groovy.runtime.MetaClassHelper;
import org.codehaus.groovy.runtime.NullObject;
import org.codehaus.groovy.runtime.ScriptBytecodeAdapter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* POJO call site
* meta class - cached
* method - cached
*
* @author Alex Tkachman
*/
public class PojoMetaMethodSite extends MetaMethodSite {
protected final int version;
public PojoMetaMethodSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class params[]) {
super(site, metaClass, metaMethod, params);
version = metaClass.getVersion();
}
public Object invoke(Object receiver, Object[] args) throws Throwable {
MetaClassHelper.unwrap(args);
return metaMethod.doMethodInvoke(receiver, args);
}
public Object call(Object receiver, Object[] args) throws Throwable {
if(checkCall(receiver, args))
return invoke(receiver,args);
else
return CallSiteArray.defaultCall(this, receiver, args);
}
protected final boolean checkPojoMetaClass() {
return !GroovyCategorySupport.hasCategoryInCurrentThread()
&& ((MetaClassImpl)metaClass).getVersion() == version;
}
protected final boolean checkCall(Object receiver, Object[] args) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params, args);
}
catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject(), args);
throw e;
}
}
protected final boolean checkCall(Object receiver) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params);
} catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject());
throw e;
}
}
protected final boolean checkCall(Object receiver, Object arg1) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params, arg1);
} catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject(), arg1);
throw e;
}
}
protected final boolean checkCall(Object receiver, Object arg1, Object arg2) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params, arg1, arg2);
} catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject(), arg1, arg2);
throw e;
}
}
protected final boolean checkCall(Object receiver, Object arg1, Object arg2, Object arg3) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params, arg1, arg2, arg3);
} catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject(), arg1, arg2, arg3);
throw e;
}
}
protected final boolean checkCall(Object receiver, Object arg1, Object arg2, Object arg3, Object arg4) {
try {
return receiver.getClass() == metaClass.getTheClass() // meta class match receiver
&& checkPojoMetaClass()
&& MetaClassHelper.sameClasses(params, arg1, arg2, arg3, arg4);
} catch (NullPointerException e) {
if (receiver == null)
return checkCall(NullObject.getNullObject(), arg1, arg2, arg3, arg4);
throw e;
}
}
public static CallSite createPojoMetaMethodSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class[] params, Object receiver, Object[] args) {
if (metaMethod instanceof CallSiteAwareMetaMethod) {
return ((CallSiteAwareMetaMethod)metaMethod).createPojoCallSite(site, metaClass, metaMethod, params, receiver, args);
}
if (metaMethod.getClass() == CachedMethod.class)
return createCachedMethodSite (site, metaClass, (CachedMethod) metaMethod, params, args);
return createNonAwareCallSite(site, metaClass, metaMethod, params, args);
}
public static CallSite createCachedMethodSite(CallSite site, MetaClassImpl metaClass, CachedMethod metaMethod, Class[] params, Object[] args) {
if (metaMethod.correctArguments(args) == args) {
if (noWrappers(args)) {
if (noCoerce(metaMethod,args))
return new PojoCachedMethodSiteNoUnwrap(site, metaClass, metaMethod, params);
else
return metaMethod.createPojoMetaMethodSite(site, metaClass, params);
}
}
return new PojoCachedMethodSite(site, metaClass, metaMethod, params);
}
public static CallSite createNonAwareCallSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class[] params, Object[] args) {
if (metaMethod.correctArguments(args) == args) {
if (noWrappers(args)) {
if (noCoerce(metaMethod,args))
return new PojoMetaMethodSiteNoUnwrap(site, metaClass, metaMethod, params);
else
return new PojoMetaMethodSiteNoUnwrapNoCoerce(site, metaClass, metaMethod, params);
}
}
return new PojoMetaMethodSite(site, metaClass, metaMethod, params);
}
public static class PojoCachedMethodSite extends PojoMetaMethodSite {
final Method reflect;
public PojoCachedMethodSite(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class[] params) {
super(site, metaClass, metaMethod, params);
reflect = ((CachedMethod)metaMethod).setAccessible();
}
public Object invoke(Object receiver, Object[] args) throws Throwable {
MetaClassHelper.unwrap(args);
args = metaMethod.coerceArgumentsToClasses(args);
try {
return reflect.invoke(receiver, args);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if (cause instanceof GroovyRuntimeException) {
throw ScriptBytecodeAdapter.unwrap ((GroovyRuntimeException) cause);
} else {
throw cause;
}
}
}
}
public static class PojoCachedMethodSiteNoUnwrap extends PojoCachedMethodSite {
public PojoCachedMethodSiteNoUnwrap(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class params[]) {
super(site, metaClass, metaMethod, params);
}
public final Object invoke(Object receiver, Object[] args) throws Throwable {
args = metaMethod.coerceArgumentsToClasses(args);
try {
return reflect.invoke(receiver, args);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if (cause instanceof GroovyRuntimeException) {
throw ScriptBytecodeAdapter.unwrap ((GroovyRuntimeException) cause);
} else {
throw cause;
}
}
}
}
public static class PojoCachedMethodSiteNoUnwrapNoCoerce extends PojoCachedMethodSite {
public PojoCachedMethodSiteNoUnwrapNoCoerce(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class params[]) {
super(site, metaClass, metaMethod, params);
}
public final Object invoke(Object receiver, Object[] args) throws Throwable {
try {
return reflect.invoke(receiver, args);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
if (cause instanceof GroovyRuntimeException) {
throw ScriptBytecodeAdapter.unwrap ((GroovyRuntimeException) cause);
} else {
throw cause;
}
}
}
}
/**
* Call site where we know there is no need to unwrap arguments
*/
public static class PojoMetaMethodSiteNoUnwrap extends PojoMetaMethodSite {
public PojoMetaMethodSiteNoUnwrap(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class params[]) {
super(site, metaClass, metaMethod, params);
}
public final Object invoke(Object receiver, Object[] args) throws Throwable {
try {
return metaMethod.doMethodInvoke(receiver, args);
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
}
}
/**
* Call site where we know there is no need neither unwrap nor coerce arguments
*/
public static class PojoMetaMethodSiteNoUnwrapNoCoerce extends PojoMetaMethodSite {
public PojoMetaMethodSiteNoUnwrapNoCoerce(CallSite site, MetaClassImpl metaClass, MetaMethod metaMethod, Class params[]) {
super(site, metaClass, metaMethod, params);
}
public final Object invoke(Object receiver, Object[] args) throws Throwable {
try {
return metaMethod.invoke(receiver, args);
} catch (GroovyRuntimeException gre) {
throw ScriptBytecodeAdapter.unwrap(gre);
}
}
}
}
