/* Copyright 2004 The Apache Software Foundation
*
* 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.jam.internal.elements;
import org.codehaus.jam.JClass;
import org.codehaus.jam.JParameter;
import org.codehaus.jam.internal.classrefs.DirectJClassRef;
import org.codehaus.jam.internal.classrefs.JClassRef;
import org.codehaus.jam.internal.classrefs.QualifiedJClassRef;
import org.codehaus.jam.internal.classrefs.UnqualifiedJClassRef;
import org.codehaus.jam.mutable.MInvokable;
import org.codehaus.jam.mutable.MParameter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author Patrick Calahan <email: pcal-at-bea-dot-com>
*/
public abstract class InvokableImpl extends MemberImpl implements MInvokable {
// ========================================================================
// Variables
private List mExceptionClassRefs = null;
private List mParameters = null;
// ========================================================================
// Constructors
protected InvokableImpl(ClassImpl containingClass) {
super(containingClass);
}
// ========================================================================
// MConstructor implementation
public void addException(JClass exceptionClass) {
if (exceptionClass == null) {
throw new IllegalArgumentException("null exception class");
}
if (mExceptionClassRefs == null) mExceptionClassRefs = new ArrayList();
mExceptionClassRefs.add(DirectJClassRef.create(exceptionClass));
}
public void addException(String qcname) {
if (qcname == null) throw new IllegalArgumentException("null qcname");
if (mExceptionClassRefs == null) mExceptionClassRefs = new ArrayList();
mExceptionClassRefs.add(QualifiedJClassRef.
create(qcname,(ClassImpl)getContainingClass()));
}
public void addUnqualifiedException(String ucname) {
if (ucname == null) throw new IllegalArgumentException("null qcname");
if (mExceptionClassRefs == null) mExceptionClassRefs = new ArrayList();
mExceptionClassRefs.add(UnqualifiedJClassRef.
create(ucname,(ClassImpl)getContainingClass()));
}
public void removeException(String exceptionClassName) {
if (exceptionClassName == null) {
throw new IllegalArgumentException("null classname");
}
if (mExceptionClassRefs != null) {
mExceptionClassRefs.remove(exceptionClassName);
}
}
public void removeException(JClass exceptionClass) {
removeException(exceptionClass.getQualifiedName());
}
public MParameter addNewParameter() {
if (mParameters == null) mParameters = new ArrayList();
MParameter param = new ParameterImpl(defaultName(mParameters.size()),
this,"java.lang.Object");
mParameters.add(param);
return param;
}
public void removeParameter(MParameter parameter) {
if (mParameters != null) mParameters.remove(parameter);
}
public MParameter[] getMutableParameters() {
if (mParameters == null || mParameters.size() == 0) {
return new MParameter[0];
} else {
MParameter[] out = new MParameter[mParameters.size()];
mParameters.toArray(out);
return out;
}
}
// ========================================================================
// JInvokable implementation
public JParameter[] getParameters() {
return getMutableParameters();
}
public JClass[] getExceptionTypes() {
if (mExceptionClassRefs == null || mExceptionClassRefs.size() == 0) {
return new JClass[0];
}
JClass[] out = new JClass[mExceptionClassRefs.size()];
for(int i=0; i<out.length; i++) {
out[i] = ((JClassRef)mExceptionClassRefs.get(i)).getRefClass();
}
return out;
}
public String getQualifiedName() {
//REVIEW this probably needs more thought
StringWriter out = new StringWriter();
out.write(getContainingClass().getQualifiedName());
out.write('.');
out.write(getSimpleName());
out.write('(');
JParameter[] params = getParameters();
for(int i=0; i<params.length; i++) {
out.write(params[i].getType().getQualifiedName());
if (i<params.length-1) out.write(", ");
}
out.write(')');
return out.toString();
}
// ========================================================================
// Other public methods
//FIXME this is here only so the parser can be lazy - please remove it
public void setUnqualifiedThrows(List classnames) {
if (classnames == null || classnames.size() == 0) {
mExceptionClassRefs= null;
return;
}
mExceptionClassRefs = new ArrayList(classnames.size());
for(int i=0; i<classnames.size(); i++) {
mExceptionClassRefs.add(UnqualifiedJClassRef.create
((String)classnames.get(i),
(ClassImpl)getContainingClass()));
}
}
}