diff options
Diffstat (limited to 'bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffZipStep.java')
-rw-r--r-- | bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffZipStep.java | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffZipStep.java b/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffZipStep.java deleted file mode 100644 index 98919ba51..000000000 --- a/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffZipStep.java +++ /dev/null @@ -1,62 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 compeople AG and others. - * 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 - * - * Contributors: - * compeople AG (Stefan Liebig) - initial API and implementation - * IBM Corporation - ongoing development - *******************************************************************************/ -package org.eclipse.equinox.internal.p2.artifact.optimizers.jbdiff; - -import ie.wombat.jbdiff.JBDiff; -import java.io.ByteArrayInputStream; -import java.io.IOException; -import org.eclipse.equinox.internal.p2.core.helpers.FileUtils; -import org.eclipse.equinox.internal.p2.sar.DirectByteArrayOutputStream; -import org.eclipse.equinox.internal.p2.sar.SarUtil; -import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository; -import org.eclipse.equinox.p2.repository.artifact.spi.ArtifactDescriptor; - -public class JBDiffZipStep extends JBDiffStep { - - public JBDiffZipStep() { - super(); - } - - // TODO We need a different way of injecting the base artifacts. This approach forces - // the target and base to live in the same repo. Typical but not really required. - protected JBDiffZipStep(IArtifactRepository repository) { - super(repository); - } - - protected void performProcessing() throws IOException { - DirectByteArrayOutputStream sarredCurrent = new DirectByteArrayOutputStream(); - SarUtil.zipToSar(((DirectByteArrayOutputStream) incomingStream).getInputStream(), sarredCurrent); - incomingStream = null; - DirectByteArrayOutputStream predecessor = fetchPredecessorBytes(new ArtifactDescriptor(key)); - byte[] diff = JBDiff.bsdiff(predecessor.getBuffer(), predecessor.getBufferLength(), sarredCurrent.getBuffer(), sarredCurrent.getBufferLength()); - // free up the memory as soon as possible. - predecessor = null; - incomingStream = null; - sarredCurrent = null; - - // copy the result of the optimization to the destination. - FileUtils.copyStream(new ByteArrayInputStream(diff), true, getDestination(), false); - } - - private DirectByteArrayOutputStream fetchPredecessorBytes(ArtifactDescriptor artifactDescriptor) throws IOException { - DirectByteArrayOutputStream zippedPredecessor = new DirectByteArrayOutputStream(); - - setStatus(repository.getArtifact(artifactDescriptor, zippedPredecessor, getProgressMonitor())); - if (!getStatus().isOK()) - throw (IOException) new IOException(getStatus().getMessage()).initCause(getStatus().getException()); - - DirectByteArrayOutputStream result = new DirectByteArrayOutputStream(); - SarUtil.zipToSar(zippedPredecessor.getInputStream(), result); - return result; - } - -} |