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/*******************************************************************************
* Copyright (C) 2008, Marek Zawirski <marek.zawirski@gmail.com>
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.egit.core.op;
import java.lang.reflect.InvocationTargetException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.egit.core.CoreText;
import org.eclipse.egit.core.EclipseGitProgressTransformer;
import org.eclipse.jgit.errors.NoRemoteRepositoryException;
import org.eclipse.jgit.errors.NotSupportedException;
import org.eclipse.jgit.errors.TransportException;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.PushResult;
import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.RemoteRefUpdate;
import org.eclipse.jgit.transport.Transport;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.jgit.transport.RemoteRefUpdate.Status;
import org.eclipse.osgi.util.NLS;
/**
* Push operation: pushing from local repository to one or many remote ones.
*/
public class PushOperation {
private static final int WORK_UNITS_PER_TRANSPORT = 10;
private final Repository localDb;
private final PushOperationSpecification specification;
private final boolean dryRun;
private final RemoteConfig rc;
private PushOperationResult operationResult;
/**
* Create push operation for provided specification.
* <p>
* Operation is not performed within constructor,
* {@link #run(IProgressMonitor)} method must be called for that.
*
* @param localDb
* local repository.
* @param specification
* specification of ref updates for remote repositories.
* @param rc
* optional remote config to apply on used transports. May be
* null.
* @param dryRun
* true if push operation should just check for possible result
* and not really update remote refs, false otherwise - when push
* should act normally.
*/
public PushOperation(final Repository localDb,
final PushOperationSpecification specification,
final boolean dryRun, final RemoteConfig rc) {
this.localDb = localDb;
this.specification = specification;
this.dryRun = dryRun;
this.rc = rc;
}
/**
* @return push operation result.
*/
public PushOperationResult getOperationResult() {
if (operationResult == null)
throw new IllegalStateException(CoreText.OperationNotYetExecuted);
return operationResult;
}
/**
* @return operation specification, as provided in constructor.
*/
public PushOperationSpecification getSpecification() {
return specification;
}
/**
* Execute operation and store result. Operation is executed independently
* on each remote repository.
* <p>
*
* @param actMonitor
* the monitor to be used for reporting progress and responding
* to cancellation. The monitor is never <code>null</code>
*
* @throws InvocationTargetException
* Cause of this exceptions may include
* {@link TransportException}, {@link NotSupportedException} or
* some unexpected {@link RuntimeException}.
*/
public void run(IProgressMonitor actMonitor) throws InvocationTargetException {
if (operationResult != null)
throw new IllegalStateException(CoreText.OperationAlreadyExecuted);
for (URIish uri : this.specification.getURIs()) {
for (RemoteRefUpdate update : this.specification.getRefUpdates(uri))
if (update.getStatus() != Status.NOT_ATTEMPTED)
throw new IllegalStateException(
CoreText.RemoteRefUpdateCantBeReused);
}
IProgressMonitor monitor;
if (actMonitor == null)
monitor = new NullProgressMonitor();
else
monitor = actMonitor;
final int totalWork = specification.getURIsNumber()
* WORK_UNITS_PER_TRANSPORT;
if (dryRun)
monitor.beginTask(CoreText.PushOperation_taskNameDryRun, totalWork);
else
monitor.beginTask(CoreText.PushOperation_taskNameNormalRun,
totalWork);
operationResult = new PushOperationResult();
for (final URIish uri : specification.getURIs()) {
final SubProgressMonitor subMonitor = new SubProgressMonitor(
monitor, WORK_UNITS_PER_TRANSPORT,
SubProgressMonitor.PREPEND_MAIN_LABEL_TO_SUBTASK);
Transport transport = null;
try {
if (monitor.isCanceled()) {
operationResult.addOperationResult(uri,
CoreText.PushOperation_resultCancelled);
continue;
}
transport = Transport.open(localDb, uri);
if (rc != null)
transport.applyConfig(rc);
transport.setDryRun(dryRun);
final EclipseGitProgressTransformer gitSubMonitor = new EclipseGitProgressTransformer(
subMonitor);
final PushResult pr = transport.push(gitSubMonitor,
specification.getRefUpdates(uri));
operationResult.addOperationResult(uri, pr);
monitor.worked(WORK_UNITS_PER_TRANSPORT);
} catch (final NoRemoteRepositoryException e) {
operationResult.addOperationResult(uri, NLS.bind(
CoreText.PushOperation_resultNoServiceError, e
.getMessage()));
} catch (final TransportException e) {
operationResult.addOperationResult(uri, NLS.bind(
CoreText.PushOperation_resultTransportError, e
.getMessage()));
} catch (final NotSupportedException e) {
operationResult.addOperationResult(uri, NLS.bind(
CoreText.PushOperation_resultNotSupported, e
.getMessage()));
} finally {
if (transport != null) {
transport.close();
}
// Dirty trick to get things always working.
subMonitor.beginTask("", WORK_UNITS_PER_TRANSPORT); //$NON-NLS-1$
subMonitor.done();
subMonitor.done();
}
}
monitor.done();
}
}
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