| /* |
| * 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.ant.compress.resources; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| 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.types.resources.FileProvider; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| import org.apache.ant.compress.util.SevenZStreamFactory; |
| |
| import org.apache.commons.compress.archivers.ArchiveEntry; |
| import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry; |
| import org.apache.commons.compress.archivers.sevenz.SevenZFile; |
| |
| /** |
| * A Resource representation of an entry in a sevenzfile. |
| * |
| * @since Apache Compress Antlib 1.3 |
| */ |
| public final class SevenZResource extends CommonsCompressArchiveResource { |
| |
| /** |
| * Default constructor. |
| */ |
| public SevenZResource() { |
| super(new SevenZStreamFactory(), "7z"); |
| } |
| |
| /** |
| * Construct a SevenZResource representing the specified |
| * entry in the specified 7z file. |
| * @param z the 7z file as File. |
| * @param enc the encoding used for filenames - ignored. |
| * @param e the SevenZEntry. |
| */ |
| public SevenZResource(File z, String enc, SevenZArchiveEntry e) { |
| super(new SevenZStreamFactory(), "7z", z, e); |
| setEntry(e); |
| } |
| |
| /** |
| * Construct a SevenZResource representing the specified |
| * entry in the specified 7z archive. |
| * @param z the 7z archive |
| * @param enc the encoding used for filenames - ignored. |
| * @param e the SevenZEntry. |
| */ |
| public SevenZResource(Resource z, String enc, SevenZArchiveEntry e) { |
| super(new SevenZStreamFactory(), "sevenz", z, e); |
| setEntry(e); |
| } |
| |
| /** |
| * Set the 7z that holds this SevenZResource. |
| * @param z the 7z file as a File. |
| */ |
| public void setSevenZFile(File z) { |
| setArchive(z); |
| } |
| |
| /** |
| * Set the 7z file that holds this SevenZResource. |
| * @param z the 7z as a Resource. |
| */ |
| public void setSevenZResource(Resource z) { |
| addConfigured(z); |
| } |
| |
| /** |
| * Get the 7z file that holds this SevenZResource. |
| * @return the 7z file as a File or null if it is not a file. |
| */ |
| public File getSevenZFile() { |
| FileProvider fp = (FileProvider) getArchive().as(FileProvider.class); |
| return fp != null ? fp.getFile() : null; |
| } |
| |
| /** |
| * Return an InputStream for reading the contents of this Resource. |
| * @return an InputStream object. |
| * @throws IOException if the sevenz file cannot be opened, |
| * or the entry cannot be read. |
| */ |
| public InputStream getInputStream() throws IOException { |
| if (isReference()) { |
| return ((Resource) getCheckedRef()).getInputStream(); |
| } |
| File f = getSevenZFile(); |
| if (f == null) { |
| return super.getInputStream(); |
| } |
| |
| final SevenZFile z = new SevenZFile(f); |
| SevenZArchiveEntry ze = z.getNextEntry(); |
| while (ze != null) { |
| if (ze.getName().equals(getName())) { |
| return new InputStream() { |
| public int read() throws IOException { |
| return z.read(); |
| } |
| public int read(byte[] b) throws IOException { |
| return z.read(b); |
| } |
| public void close() throws IOException { |
| z.close(); |
| } |
| protected void finalize() throws Throwable { |
| try { |
| close(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| }; |
| } |
| ze = z.getNextEntry(); |
| } |
| z.close(); |
| throw new BuildException("no entry " + getName() + " in " |
| + getArchive()); |
| } |
| |
| /** |
| * fetches information from the named entry inside the archive. |
| */ |
| protected void fetchEntry() { |
| File f = getSevenZFile(); |
| if (f == null) { |
| super.fetchEntry(); |
| return; |
| } |
| |
| SevenZFile z = null; |
| try { |
| z = new SevenZFile(f); |
| SevenZArchiveEntry ze = z.getNextEntry(); |
| while (ze != null) { |
| if (ze.getName().equals(getName())) { |
| setEntry(ze); |
| return; |
| } |
| ze = z.getNextEntry(); |
| } |
| setEntry(null); |
| } catch (IOException e) { |
| log(e.getMessage(), Project.MSG_DEBUG); |
| throw new BuildException(e); |
| } finally { |
| if (z != null) { |
| try { |
| z.close(); |
| } catch (IOException ex) { |
| // swallow |
| } |
| } |
| } |
| } |
| |
| } |