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/*
* Copyright 2000-2014 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 com.intellij.openapi.options;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.WriteExternalException;
import com.intellij.util.UniqueFileNamesProvider;
import com.intellij.util.containers.HashSet;
import com.intellij.util.text.UniqueNameGenerator;
import gnu.trove.THashSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.*;
public abstract class AbstractSchemesManager<T extends Scheme, E extends ExternalizableScheme> implements SchemesManager<T,E> {
private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.options.AbstractSchemesManager");
protected final List<T> mySchemes = new ArrayList<T>();
private volatile T myCurrentScheme;
private String myCurrentSchemeName;
@Override
public void addNewScheme(@NotNull final T scheme, final boolean replaceExisting) {
int toReplace = -1;
boolean newSchemeIsShared = isShared(scheme);
for (int i = 0; i < mySchemes.size(); i++) {
T t = mySchemes.get(i);
if (Comparing.equal(scheme.getName(),t.getName()) && newSchemeIsShared == isShared(t)) {
toReplace = i;
break;
}
}
if (toReplace == -1) {
mySchemes.add(scheme);
}
else {
if (replaceExisting || !isExternalizable(scheme)) {
mySchemes.set(toReplace, scheme);
}
else {
renameScheme((E)scheme, generateUniqueName(scheme));
mySchemes.add(scheme);
}
}
onSchemeAdded(scheme);
checkCurrentScheme(scheme);
}
protected void checkCurrentScheme(final Scheme scheme) {
if (myCurrentScheme == null && myCurrentSchemeName != null && myCurrentSchemeName.equals(scheme.getName())) {
myCurrentScheme = (T)scheme;
}
}
@NotNull
private String generateUniqueName(final T scheme) {
return UniqueNameGenerator.generateUniqueName(UniqueFileNamesProvider.convertName(scheme.getName()), collectExistingNames(mySchemes));
}
private Collection<String> collectExistingNames(final Collection<T> schemes) {
HashSet<String> result = new HashSet<String>();
for (T scheme : schemes) {
result.add(scheme.getName());
}
return result;
}
@Override
public void clearAllSchemes() {
for (T t : getAllSchemes()) {
removeScheme(t);
}
}
@Override
@NotNull
public List<T> getAllSchemes() {
return Collections.unmodifiableList(new ArrayList<T>(mySchemes));
}
@Override
@Nullable
public T findSchemeByName(final String schemeName) {
for (T scheme : mySchemes) {
if (Comparing.equal(scheme.getName(),schemeName)) {
return scheme;
}
}
return null;
}
@Override
public abstract void save() throws WriteExternalException;
@Override
public void setCurrentSchemeName(final String schemeName) {
myCurrentSchemeName = schemeName;
myCurrentScheme = schemeName == null ? null : findSchemeByName(schemeName);
}
@Override
@Nullable
public T getCurrentScheme() {
T currentScheme = myCurrentScheme;
if (currentScheme == null) {
return null;
}
return findSchemeByName(currentScheme.getName());
}
@Override
public void removeScheme(final T scheme) {
String schemeName = scheme.getName();
Scheme toDelete = findSchemeToDelete(schemeName);
//noinspection SuspiciousMethodCalls
mySchemes.remove(toDelete);
if (myCurrentScheme == toDelete) {
myCurrentScheme = null;
}
onSchemeDeleted(toDelete);
}
protected abstract void onSchemeDeleted(final Scheme toDelete);
private Scheme findSchemeToDelete(final String schemeName) {
for (T scheme : mySchemes) {
if (Comparing.equal(schemeName,scheme.getName())) return scheme;
}
return null;
}
@Override
@NotNull
public Collection<String> getAllSchemeNames() {
return getAllSchemeNames(mySchemes);
}
public Collection<String> getAllSchemeNames(Collection<T> schemes) {
Set<String> names = new THashSet<String>();
for (T scheme : schemes) {
names.add(scheme.getName());
}
return names;
}
protected abstract void onSchemeAdded(final T scheme);
protected void renameScheme(final E scheme, @NotNull String newName){
if (!Comparing.equal(newName,scheme.getName())) {
scheme.setName(newName);
LOG.assertTrue(Comparing.equal(newName,scheme.getName()));
}
}
@Override
@NotNull
public Collection<SharedScheme<E>> loadSharedSchemes() {
return loadSharedSchemes(getAllSchemes());
}
protected boolean isExternalizable(final T scheme) {
return scheme instanceof ExternalizableScheme;
}
}
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