| /* |
| * 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. |
| */ |
| |
| /* |
| * @author max |
| */ |
| package com.intellij.openapi.vfs.newvfs.events; |
| |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileSystem; |
| import com.intellij.util.FileContentUtilCore; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class VFilePropertyChangeEvent extends VFileEvent { |
| private final VirtualFile myFile; |
| private final String myPropertyName; |
| private final Object myOldValue; |
| private final Object myNewValue; |
| |
| public VFilePropertyChangeEvent(Object requestor, |
| @NotNull VirtualFile file, |
| @NotNull String propertyName, |
| @Nullable Object oldValue, |
| @Nullable Object newValue, |
| boolean isFromRefresh) { |
| super(requestor, isFromRefresh); |
| myFile = file; |
| myPropertyName = propertyName; |
| myOldValue = oldValue; |
| myNewValue = newValue; |
| checkPropertyValuesCorrect(requestor, propertyName, oldValue, newValue); |
| } |
| |
| public static void checkPropertyValuesCorrect(Object requestor, @NotNull String propertyName, Object oldValue, Object newValue) { |
| if (Comparing.equal(oldValue, newValue) && FileContentUtilCore.FORCE_RELOAD_REQUESTOR != requestor) { |
| throw new IllegalArgumentException("Values must be different, got the same: " + oldValue); |
| } |
| if (VirtualFile.PROP_NAME.equals(propertyName)) { |
| if (oldValue == null) throw new IllegalArgumentException("oldName must not be null"); |
| if (newValue == null) throw new IllegalArgumentException("newName must not be null"); |
| } |
| else if (VirtualFile.PROP_ENCODING.equals(propertyName)) { |
| if (oldValue == null) throw new IllegalArgumentException("oldCharset must not be null"); |
| } |
| else if (VirtualFile.PROP_WRITABLE.equals(propertyName)) { |
| if (!(oldValue instanceof Boolean)) throw new IllegalArgumentException("oldWriteable must be boolean, got "+oldValue); |
| if (!(newValue instanceof Boolean)) throw new IllegalArgumentException("newWriteable must be boolean, got "+newValue); |
| } |
| else if (VirtualFile.PROP_HIDDEN.equals(propertyName)) { |
| if (!(oldValue instanceof Boolean)) throw new IllegalArgumentException("oldHidden must be boolean, got "+oldValue); |
| if (!(newValue instanceof Boolean)) throw new IllegalArgumentException("newHidden must be boolean, got "+newValue); |
| } |
| else if (VirtualFile.PROP_SYMLINK_TARGET.equals(propertyName)) { |
| if (oldValue != null && !(oldValue instanceof String)) throw new IllegalArgumentException("oldSymTarget must be String, got "+oldValue); |
| if (newValue != null && !(newValue instanceof String)) throw new IllegalArgumentException("newSymTarget must be String, got "+newValue); |
| } |
| } |
| |
| @NotNull |
| @Override |
| public VirtualFile getFile() { |
| return myFile; |
| } |
| |
| public Object getNewValue() { |
| return myNewValue; |
| } |
| |
| public Object getOldValue() { |
| return myOldValue; |
| } |
| |
| @NotNull |
| public String getPropertyName() { |
| return myPropertyName; |
| } |
| |
| @NotNull |
| @Override |
| public String getPath() { |
| return myFile.getPath(); |
| } |
| |
| @NotNull |
| @Override |
| public VirtualFileSystem getFileSystem() { |
| return myFile.getFileSystem(); |
| } |
| |
| @Override |
| public boolean isValid() { |
| return myFile.isValid(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| VFilePropertyChangeEvent event = (VFilePropertyChangeEvent)o; |
| |
| if (!myFile.equals(event.myFile)) return false; |
| if (myNewValue != null ? !myNewValue.equals(event.myNewValue) : event.myNewValue != null) return false; |
| if (myOldValue != null ? !myOldValue.equals(event.myOldValue) : event.myOldValue != null) return false; |
| if (!myPropertyName.equals(event.myPropertyName)) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = myFile.hashCode(); |
| result = 31 * result + myPropertyName.hashCode(); |
| result = 31 * result + (myOldValue != null ? myOldValue.hashCode() : 0); |
| result = 31 * result + (myNewValue != null ? myNewValue.hashCode() : 0); |
| return result; |
| } |
| |
| @Override |
| @NotNull |
| @NonNls |
| public String toString() { |
| return "VfsEvent[property(" + myPropertyName + ") changed for '" + myFile + "':" + |
| " oldValue = " + myOldValue + ", newValue = " + myNewValue + "]"; |
| } |
| |
| public String getOldPath() { |
| String path = getPath(); |
| if (VirtualFile.PROP_NAME.equals(myPropertyName) && myNewValue instanceof String && myOldValue instanceof String) { |
| String newName = (String)myNewValue; |
| int i = path.lastIndexOf(newName); |
| if (i != -1) path = new StringBuilder(path).replace(i, i + newName.length(), (String)myOldValue).toString(); |
| } |
| return path; |
| } |
| } |