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/*
* Copyright 2000-2012 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 org.jetbrains.idea.svn;
import com.intellij.openapi.vcs.VcsException;
import com.intellij.util.Processor;
import org.tmatesoft.sqljet.core.SqlJetErrorCode;
import org.tmatesoft.sqljet.core.SqlJetException;
import org.tmatesoft.svn.core.SVNErrorCode;
import org.tmatesoft.svn.core.SVNException;
/**
* Created with IntelliJ IDEA.
* User: Irina.Chernushina
* Date: 6/29/12
* Time: 3:45 PM
*/
public abstract class RepeatSvnActionThroughBusy {
public static final int REPEAT = 10;
public static final Processor<Exception> ourBusyExceptionProcessor = new Processor<Exception>() {
@SuppressWarnings("ThrowableResultOfMethodCallIgnored")
@Override
public boolean process(Exception e) {
if (e instanceof SVNException) {
final SVNErrorCode errorCode = ((SVNException)e).getErrorMessage().getErrorCode();
if (SVNErrorCode.WC_LOCKED.equals(errorCode)) {
return true;
}
else if (SVNErrorCode.SQLITE_ERROR.equals(errorCode)) {
Throwable cause = ((SVNException)e).getErrorMessage().getCause();
if (cause instanceof SqlJetException) {
return SqlJetErrorCode.BUSY.equals(((SqlJetException)cause).getErrorCode());
}
}
}
return false;
}
};
protected int myCnt = REPEAT;
protected long myTimeout = 50;
protected abstract void executeImpl() throws VcsException;
protected Object myT;
public <T> T compute() throws VcsException {
execute();
return (T) myT;
}
public void execute() throws VcsException {
while (true) {
try {
executeImpl();
break;
}
catch (VcsException e) {
if (ourBusyExceptionProcessor.process(e)) {
if (myCnt > 0) {
try {
Thread.sleep(myTimeout * (REPEAT - myCnt + 1));
}
catch (InterruptedException e1) {
//
}
-- myCnt;
continue;
}
}
throw e;
}
}
}
}
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