| /* |
| * 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.tools.ant.types.resources; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.types.Resource; |
| import org.apache.tools.ant.util.FileUtils; |
| import org.apache.tools.tar.TarEntry; |
| import org.apache.tools.tar.TarInputStream; |
| |
| /** |
| * A Resource representation of an entry in a tar archive. |
| * @since Ant 1.7 |
| */ |
| public class TarResource extends ArchiveResource { |
| |
| private String userName = ""; |
| private String groupName = ""; |
| private int uid; |
| private int gid; |
| |
| /** |
| * Default constructor. |
| */ |
| public TarResource() { |
| } |
| |
| /** |
| * Construct a TarResource representing the specified |
| * entry in the specified archive. |
| * @param a the archive as File. |
| * @param e the TarEntry. |
| */ |
| public TarResource(File a, TarEntry e) { |
| super(a, true); |
| setEntry(e); |
| } |
| |
| /** |
| * Construct a TarResource representing the specified |
| * entry in the specified archive. |
| * @param a the archive as Resource. |
| * @param e the TarEntry. |
| */ |
| public TarResource(Resource a, TarEntry e) { |
| super(a, true); |
| setEntry(e); |
| } |
| |
| /** |
| * Return an InputStream for reading the contents of this Resource. |
| * @return an InputStream object. |
| * @throws IOException if the tar file cannot be opened, |
| * or the entry cannot be read. |
| */ |
| public InputStream getInputStream() throws IOException { |
| if (isReference()) { |
| return ((Resource) getCheckedRef()).getInputStream(); |
| } |
| Resource archive = getArchive(); |
| final TarInputStream i = new TarInputStream(archive.getInputStream()); |
| TarEntry te = null; |
| while ((te = i.getNextEntry()) != null) { |
| if (te.getName().equals(getName())) { |
| return i; |
| } |
| } |
| |
| FileUtils.close(i); |
| throw new BuildException("no entry " + getName() + " in " |
| + getArchive()); |
| } |
| |
| /** |
| * Get an OutputStream for the Resource. |
| * @return an OutputStream to which content can be written. |
| * @throws IOException if unable to provide the content of this |
| * Resource as a stream. |
| * @throws UnsupportedOperationException if OutputStreams are not |
| * supported for this Resource type. |
| */ |
| public OutputStream getOutputStream() throws IOException { |
| if (isReference()) { |
| return ((Resource) getCheckedRef()).getOutputStream(); |
| } |
| throw new UnsupportedOperationException( |
| "Use the tar task for tar output."); |
| } |
| |
| /** |
| * @return the user name for the tar entry |
| */ |
| public String getUserName() { |
| if (isReference()) { |
| return ((TarResource) getCheckedRef()).getUserName(); |
| } |
| return userName; |
| } |
| |
| /** |
| * @return the group name for the tar entry |
| */ |
| public String getGroup() { |
| if (isReference()) { |
| return ((TarResource) getCheckedRef()).getGroup(); |
| } |
| return groupName; |
| } |
| |
| /** |
| * @return the uid for the tar entry |
| */ |
| public int getUid() { |
| if (isReference()) { |
| return ((TarResource) getCheckedRef()).getUid(); |
| } |
| return uid; |
| } |
| |
| /** |
| * @return the uid for the tar entry |
| */ |
| public int getGid() { |
| if (isReference()) { |
| return ((TarResource) getCheckedRef()).getGid(); |
| } |
| return uid; |
| } |
| |
| /** |
| * fetches information from the named entry inside the archive. |
| */ |
| protected void fetchEntry() { |
| Resource archive = getArchive(); |
| TarInputStream i = null; |
| try { |
| i = new TarInputStream(archive.getInputStream()); |
| TarEntry te = null; |
| while ((te = i.getNextEntry()) != null) { |
| if (te.getName().equals(getName())) { |
| setEntry(te); |
| return; |
| } |
| } |
| } catch (IOException e) { |
| log(e.getMessage(), Project.MSG_DEBUG); |
| throw new BuildException(e); |
| } finally { |
| if (i != null) { |
| FileUtils.close(i); |
| } |
| } |
| setEntry(null); |
| } |
| |
| private void setEntry(TarEntry e) { |
| if (e == null) { |
| setExists(false); |
| return; |
| } |
| setName(e.getName()); |
| setExists(true); |
| setLastModified(e.getModTime().getTime()); |
| setDirectory(e.isDirectory()); |
| setSize(e.getSize()); |
| setMode(e.getMode()); |
| userName = e.getUserName(); |
| groupName = e.getGroupName(); |
| uid = e.getUserId(); |
| gid = e.getGroupId(); |
| } |
| |
| } |