diff options
Diffstat (limited to 'bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffStep.java')
-rw-r--r-- | bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffStep.java | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffStep.java b/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffStep.java deleted file mode 100644 index d8c726cf0..000000000 --- a/bundles/org.eclipse.equinox.p2.artifact.optimizers/src/org/eclipse/equinox/internal/p2/artifact/optimizers/jbdiff/JBDiffStep.java +++ /dev/null @@ -1,61 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2008 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.*; -import org.eclipse.equinox.internal.p2.artifact.optimizers.AbstractDeltaStep; -import org.eclipse.equinox.internal.p2.core.helpers.FileUtils; -import org.eclipse.equinox.internal.p2.sar.DirectByteArrayOutputStream; -import org.eclipse.equinox.p2.repository.artifact.IArtifactRepository; -import org.eclipse.equinox.p2.repository.artifact.spi.ArtifactDescriptor; - -/** - * - */ -public class JBDiffStep extends AbstractDeltaStep { - - public JBDiffStep() { - 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 JBDiffStep(IArtifactRepository repository) { - super(repository); - } - - protected OutputStream createIncomingStream() throws IOException { - return new DirectByteArrayOutputStream(); - } - - protected void performProcessing() throws IOException { - DirectByteArrayOutputStream predecessor = fetchPredecessorBytes(new ArtifactDescriptor(key)); - DirectByteArrayOutputStream current = (DirectByteArrayOutputStream) incomingStream; - byte[] diff = JBDiff.bsdiff(predecessor.getBuffer(), predecessor.getBufferLength(), current.getBuffer(), current.getBufferLength()); - // free up the memory as soon as possible. - predecessor = null; - current = null; - incomingStream = 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 result = new DirectByteArrayOutputStream(); - setStatus(repository.getArtifact(artifactDescriptor, result, getProgressMonitor())); - if (!getStatus().isOK()) - throw (IOException) new IOException(getStatus().getMessage()).initCause(getStatus().getException()); - return result; - } -} |