/*
* Copyright 2003-2012 JetBrains s.r.o.
*
* 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 jetbrains.mps.extapi.persistence;
import jetbrains.mps.project.AbstractModule;
import jetbrains.mps.vfs.FileSystemEvent;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.module.SModule;
import org.jetbrains.mps.openapi.util.ProgressMonitor;
import jetbrains.mps.vfs.FileSystem;
import jetbrains.mps.vfs.FileSystemListener;
import jetbrains.mps.vfs.IFile;
import org.jetbrains.mps.openapi.persistence.Memento;
import java.util.Collections;
/**
* evgeny, 11/9/12
*/
public abstract class FolderModelRootBase extends ModelRootBase implements FileSystemListener {
private String path;
protected FolderModelRootBase() {
}
public String getPath() {
return path;
}
public void setPath(String path) {
checkNotRegistered();
this.path = path;
}
@Override
public String getPresentation() {
return (getPath() != null ? getPath() : "no path");
}
@Override
public void save(@NotNull Memento memento) {
memento.put("path", path);
}
@Override
public void load(@NotNull Memento memento) {
checkNotRegistered();
path = memento.get("path");
}
@Override
public void attach() {
super.attach();
SModule module = getModule();
if (module instanceof AbstractModule) {
((AbstractModule) module).getFileSystem().addListener(this);
}
}
@Override
public void dispose() {
SModule module = getModule();
if (module instanceof AbstractModule) {
((AbstractModule) module).getFileSystem().removeListener(this);
}
super.dispose();
}
@NotNull
@Override
public IFile getFileToListen() {
return FileSystem.getInstance().getFileByPath(getPath());
}
@Override
public Iterable<FileSystemListener> getListenerDependencies() {
if (getModule() instanceof FileSystemListener) {
return Collections.singleton((FileSystemListener) getModule());
}
return null;
}
@Override
public void update(ProgressMonitor monitor, @NotNull FileSystemEvent event) {
update();
}
@Override
public int hashCode() {
// all inheritors should override and implement it
throw new UnsupportedOperationException();
}
@Override
public boolean equals(Object obj) {
// all inheritors should override and implement it
throw new UnsupportedOperationException();
}
}