| /* |
| * Copyright 2000-2009 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.components.impl.stores; |
| |
| import com.intellij.openapi.application.ex.DecodeDefaultsUtil; |
| import com.intellij.openapi.components.PathMacroManager; |
| import com.intellij.openapi.components.StateStorage; |
| import com.intellij.openapi.components.StateStorageException; |
| import com.intellij.openapi.util.JDOMUtil; |
| import com.intellij.util.xmlb.JDOMXIncluder; |
| import org.jdom.Document; |
| import org.jdom.Element; |
| import org.jdom.JDOMException; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Set; |
| |
| |
| class DefaultsStateStorage implements StateStorage { |
| private final PathMacroManager myPathMacroManager; |
| |
| |
| public DefaultsStateStorage(@Nullable final PathMacroManager pathMacroManager) { |
| myPathMacroManager = pathMacroManager; |
| } |
| |
| @Nullable |
| public Element getState(final Object component, final String componentName) throws StateStorageException { |
| final URL url = DecodeDefaultsUtil.getDefaults(component, componentName); |
| if (url == null) return null; |
| |
| try { |
| Document document = JDOMUtil.loadDocument(url); |
| document = JDOMXIncluder.resolve(document, url.toExternalForm()); |
| final Element documentElement = document.getRootElement(); |
| |
| if (myPathMacroManager != null) { |
| myPathMacroManager.expandPaths(documentElement); |
| } |
| |
| return documentElement; |
| } |
| catch (IOException e) { |
| throw new StateStorageException("Error loading state from " + url, e); |
| } |
| catch (JDOMException e) { |
| throw new StateStorageException("Error loading state from " + url, e); |
| } |
| } |
| |
| @Nullable |
| public <T> T getState(final Object component, @NotNull final String componentName, final Class<T> stateClass, @Nullable final T mergeInto) throws |
| StateStorageException { |
| return DefaultStateSerializer.deserializeState(getState(component, componentName), stateClass, mergeInto); |
| } |
| |
| public boolean hasState(final Object component, @NotNull final String componentName, final Class<?> aClass, final boolean reloadData) throws StateStorageException { |
| final URL url = DecodeDefaultsUtil.getDefaults(component, componentName); |
| return url != null; |
| } |
| |
| @NotNull |
| public ExternalizationSession startExternalization() { |
| throw new UnsupportedOperationException("Method startExternalization not implemented in " + getClass()); |
| } |
| |
| @NotNull |
| public SaveSession startSave(@NotNull ExternalizationSession externalizationSession) { |
| throw new UnsupportedOperationException("Method startSave not implemented in " + getClass()); |
| } |
| |
| public void finishSave(@NotNull SaveSession saveSession) { |
| throw new UnsupportedOperationException("Method finishSave not implemented in " + getClass()); |
| } |
| |
| public void reload(@NotNull final Set<String> changedComponents) throws StateStorageException { |
| throw new UnsupportedOperationException("Method reload not implemented in " + getClass()); |
| } |
| |
| } |