/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (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.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2006 Mirko Stocker <me@misto.ch>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.rubypeople.rdt.refactoring.core.renamemodule;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import org.jruby.ast.ClassNode;
import org.jruby.ast.Colon2Node;
import org.jruby.ast.ConstNode;
import org.jruby.ast.Node;
import org.jruby.ast.RootNode;
import org.jruby.ast.SClassNode;
import org.rubypeople.rdt.refactoring.core.IRefactoringConfig;
import org.rubypeople.rdt.refactoring.core.ModuleNodeProvider;
import org.rubypeople.rdt.refactoring.core.NodeProvider;
import org.rubypeople.rdt.refactoring.core.RefactoringConditionChecker;
import org.rubypeople.rdt.refactoring.nodewrapper.ModuleNodeWrapper;
import org.rubypeople.rdt.refactoring.util.NameHelper;
import org.rubypeople.rdt.refactoring.util.NodeUtil;
public class RenameModuleConditionChecker extends RefactoringConditionChecker {
public static final String DEFAULT_ERROR = "Please select the name of a module definition.";
private RenameModuleConfig config;
public RenameModuleConditionChecker(IRefactoringConfig config) {
super(config);
}
@Override
protected void checkInitialConditions() {
if (config.getSelectedModule() == null) {
addError(DEFAULT_ERROR);
}
}
@Override
protected void checkFinalConditions() {
if (config.getOriginalName().equals(config.getNewName())) {
addWarning("You did not change the name.");
}
if(config.getAllModuleNames().contains(config.getNewName())) {
addWarning("The name you chose is already in use.");
}
}
@Override
public void init(IRefactoringConfig configObj) {
config = (RenameModuleConfig) configObj;
ModuleNodeWrapper selectedModule = ModuleNodeProvider.getSelectedModuleNode(config.getDocumentProvider().getActiveFileRootNode(), config.getCarretPosition());
if(selectedModule == null || caretIsNotOnModuleName(selectedModule)) {
return;
}
config.setSelectedModule(selectedModule);
config.setNewName(config.getOriginalName());
config.setModuleParts(ModuleNodeProvider.findOtherParts(config.getDocumentProvider(), config.getSelectedModule()));
config.setIncludes(new ModuleIncludeFinder(config.getDocumentProvider()).find(config.getOriginalFullName()));
config.setPossibleCalls(findPossibleCalls());
config.setSelectedCalls(config.getPossibleCalls());
config.setAllModuleNames(getAllModuleNames());
}
private Collection<String> getAllModuleNames() {
Collection<String> names = new ArrayList<String>();
for(ModuleNodeWrapper module : ModuleNodeProvider.findAllModules(config.getDocumentProvider())) {
names.add(module.getFullName());
}
return names;
}
private ArrayList<ModuleSpecifierWrapper> findPossibleCalls() {
ArrayList<ModuleSpecifierWrapper> calls = new ArrayList<ModuleSpecifierWrapper>();
Collection<Node> toSkip = collectAllModulePartsAndIncludeNameNodes();
for(String file : config.getDocumentProvider().getFileNames()) {
RootNode rootNode = config.getDocumentProvider().getRootNode(file);
for (final Node node : NodeProvider.getSubNodes(rootNode, ConstNode.class, Colon2Node.class)) {
if(toSkip.contains(node)
|| NodeProvider.findParentNode(rootNode, node) instanceof ClassNode
|| NodeProvider.findParentNode(rootNode, node) instanceof SClassNode) {
continue;
}
ModuleSpecifierWrapper module = ModuleSpecifierWrapper.create(node, NameHelper.getEncosingModulePrefix(rootNode, node));
if(module.getFullName().equals(config.getOriginalFullName())) {
calls.add(module);
}
}
}
return calls;
}
private Collection<Node> collectAllModulePartsAndIncludeNameNodes() {
Collection<Node> toSkip = new HashSet<Node>();
for(ModuleNodeWrapper part : config.getModuleParts()) {
toSkip.add(part.getWrappedNode().getCPath());
}
for(ModuleSpecifierWrapper include : config.getIncludes()) {
toSkip.add(include.getWrappedNode());
}
return toSkip;
}
private boolean caretIsNotOnModuleName(ModuleNodeWrapper selectedModule) {
return !NodeUtil.positionIsInNode(config.getCarretPosition(), selectedModule.getWrappedNode().getCPath());
}
}