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/*
* Copyright 2000-2013 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.vfs;
/**
* @author max
*/
public class InvalidVirtualFileAccessException extends RuntimeException {
public InvalidVirtualFileAccessException(final VirtualFile file) {
super(composeMessage(file));
}
public InvalidVirtualFileAccessException(String message) {
super(message);
}
private static String composeMessage(VirtualFile file) {
String url = file.getUrl();
String message = "Accessing invalid virtual file: " + url;
try {
VirtualFile found = VirtualFileManager.getInstance().findFileByUrl(url);
message += "; original:" + hashCode(file) + "; found:" + hashCode(found);
}
catch (Throwable t) {
message += "; lookup failed: " + t.getMessage();
}
return message;
}
private static String hashCode(Object o) {
return o != null ? String.valueOf(o.hashCode()) : "-";
}
}
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