/*******************************************************************************
* Copyright (c) 2009 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.cdi.internal.core.refactoring;
import java.util.HashSet;
import java.util.Set;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.core.refactoring.TextFileChange;
import org.eclipse.osgi.util.NLS;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.text.edits.ReplaceEdit;
import org.eclipse.text.edits.TextEdit;
import org.jboss.tools.cdi.core.CDICoreMessages;
import org.jboss.tools.cdi.core.CDIUtil;
import org.jboss.tools.cdi.core.IBean;
import org.jboss.tools.common.el.core.model.ELInvocationExpression;
import org.jboss.tools.common.el.core.model.ELPropertyInvocation;
import org.jboss.tools.common.refactoring.FileChangeFactory;
import org.jboss.tools.jst.web.kb.refactoring.RefactorSearcher;
/**
* @author Daniel Azarov
*/
public abstract class CDIRenameProcessor extends AbstractCDIProcessor {
protected TextFileChange lastChange;
protected IFile declarationFile=null;
private String newName;
private String oldName;
private CDISearcher searcher = null;
protected IBean bean;
public CDIRenameProcessor(String label, IBean bean) {
super(label);
this.bean = bean;
setOldName(bean.getName());
}
@Override
public RefactoringStatus checkInitialConditions(IProgressMonitor pm)
throws CoreException, OperationCanceledException {
RefactoringStatus result = new RefactoringStatus();
if(bean==null) {
result.addFatalError(CDICoreMessages.RENAME_NAMED_BEAN_PROCESSOR_ERROR);
}
return result;
}
protected CDISearcher getSearcher(){
if(searcher == null){
searcher = new CDISearcher(declarationFile, getOldName());
}
return searcher;
}
public void setNewName(String newName){
this.newName = newName;
}
protected String getNewName(){
return newName;
}
protected void setOldName(String oldName){
this.oldName = oldName;
}
public String getOldName(){
return oldName;
}
// lets collect all changes for the same files in one MultiTextEdit
protected TextFileChange getChange(IFile file){
if(lastChange != null && lastChange.getFile().equals(file))
return lastChange;
for(int i=0; i < rootChange.getChildren().length; i++){
TextFileChange change = (TextFileChange)rootChange.getChildren()[i];
if(change.getFile().equals(file)){
lastChange = change;
return lastChange;
}
}
lastChange = FileChangeFactory.getFileChange(file);
MultiTextEdit root = new MultiTextEdit();
lastChange.setEdit(root);
rootChange.add(lastChange);
return lastChange;
}
Set<String> keys = new HashSet<String>();
protected void clearChanges(){
keys.clear();
}
protected void change(IFile file, int offset, int length, String text){
String key = file.getFullPath().toString()+" "+offset;
if(!keys.contains(key)){
TextFileChange change = getChange(file);
TextEdit edit = new ReplaceEdit(offset, length, text);
change.addEdit(edit);
keys.add(key);
}
}
class CDISearcher extends RefactorSearcher{
public CDISearcher(IFile declarationFile, String oldName){
super(declarationFile, oldName, CDIUtil.getJavaElement(bean));
}
@Override
protected void outOfSynch(IResource resource) {
status.addWarning(NLS.bind(CDICoreMessages.CDI_RENAME_PROCESSOR_ERROR_OUT_OF_SYNC_PROJECT, resource.getFullPath().toString()));
}
@Override
protected void match(IFile file, int offset, int length) {
if(isFileReadOnly(file)){
status.addFatalError(NLS.bind(CDICoreMessages.CDI_RENAME_PROCESSOR_ERROR_READ_ONLY_FILE, file.getFullPath().toString()));
}else
change(file, offset, length, newName);
}
@Override
protected ELInvocationExpression findComponentReference(ELInvocationExpression invocationExpression){
if(bean != null)
return invocationExpression;
ELInvocationExpression invExp = invocationExpression;
while(invExp != null){
if(invExp instanceof ELPropertyInvocation){
if(((ELPropertyInvocation)invExp).getQualifiedName() != null && ((ELPropertyInvocation)invExp).getQualifiedName().equals(propertyName))
return invExp;
else
invExp = invExp.getLeft();
}else{
invExp = invExp.getLeft();
}
}
return null;
}
@Override
protected IProject[] getProjects() {
return new IProject[]{baseFile.getProject()};
}
}
@Override
public boolean isApplicable() throws CoreException {
return bean!=null;
}
@Override
public Object[] getElements() {
return new IBean[]{bean};
}
}