| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.jackrabbit.vault.fs; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.security.DigestOutputStream; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| |
| import javax.jcr.RepositoryException; |
| |
| import org.apache.jackrabbit.vault.fs.api.AccessType; |
| import org.apache.jackrabbit.vault.fs.api.Artifact; |
| import org.apache.jackrabbit.vault.fs.api.VaultFile; |
| import org.apache.jackrabbit.vault.util.BinaryCheckOutputStream; |
| import org.apache.jackrabbit.vault.util.LineOutputStream; |
| import org.apache.jackrabbit.vault.util.MD5; |
| |
| /** |
| * {@code FileUtil}... |
| * |
| */ |
| public class VaultFileCopy { |
| |
| private final VaultFile remoteFile; |
| |
| private final File localFile; |
| |
| private final MessageDigest digest; |
| |
| private byte[] lineFeed = null; |
| |
| private MD5 md5 = null; |
| |
| private long length; |
| |
| private boolean binary; |
| |
| private VaultFileCopy(VaultFile remote, File local, MessageDigest digest, byte[] lineFeed) { |
| this.remoteFile = remote; |
| this.localFile = local; |
| this.digest = digest; |
| this.lineFeed = lineFeed; |
| } |
| |
| public static VaultFileCopy copy(VaultFile remote, File local) throws IOException { |
| return copy(remote, local, null); |
| } |
| |
| public static VaultFileCopy copy(VaultFile remote, File local, byte[] lineFeed) throws IOException { |
| MessageDigest md; |
| try { |
| md = MessageDigest.getInstance("md5"); |
| } catch (NoSuchAlgorithmException e) { |
| throw new IllegalArgumentException(e.toString()); |
| } |
| VaultFileCopy copy = new VaultFileCopy(remote, local, md, lineFeed); |
| try { |
| copy.run(); |
| } catch (RepositoryException e) { |
| throw new IOException(e.toString()); |
| } |
| return copy; |
| } |
| |
| private void run() throws IOException, RepositoryException { |
| Artifact a = remoteFile.getArtifact(); |
| if (a.getPreferredAccess() == AccessType.NONE) { |
| throw new IOException("Artifact has no content."); |
| } |
| OutputStream base; |
| if (digest == null) { |
| base = new FileOutputStream(localFile); |
| } else { |
| base = new DigestOutputStream( |
| new FileOutputStream(localFile), digest); |
| } |
| if (lineFeed != null) { |
| base = new LineOutputStream(base, lineFeed); |
| } |
| try (BinaryCheckOutputStream out = new BinaryCheckOutputStream(base)) { |
| switch (a.getPreferredAccess()) { |
| case SPOOL: |
| a.spool(out); |
| break; |
| case STREAM: |
| try (InputStream in = a.getInputStream()) { |
| byte[] buffer = new byte[8192]; |
| int read; |
| while ((read = in.read(buffer)) >= 0) { |
| out.write(buffer, 0, read); |
| } |
| } |
| break; |
| } |
| binary = out.isBinary(); |
| } |
| length = localFile.length(); |
| // try to set last modified |
| long lastMod = remoteFile.lastModified(); |
| if (lastMod > 0) { |
| localFile.setLastModified(lastMod); |
| } |
| if (digest != null) { |
| md5 = new MD5(digest.digest()); |
| } |
| } |
| |
| public MD5 getMd5() { |
| return md5; |
| } |
| |
| public long getLength() { |
| return length; |
| } |
| |
| public boolean isBinary() { |
| return binary; |
| } |
| } |