| /* |
| * 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 |
| * |
| * https://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.taskdefs; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.ant.compress.util.Messages; |
| import org.apache.ant.compress.util.SevenZStreamFactory; |
| |
| import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry; |
| import org.apache.commons.compress.archivers.sevenz.SevenZFile; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.util.FileNameMapper; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| /** |
| * Un7z a file. |
| * @since Apache Compress Antlib 1.3 |
| */ |
| public class Un7z extends ExpandBase { |
| |
| public Un7z() { |
| super(new SevenZStreamFactory()); |
| } |
| |
| // overridden in order to take advantage of SevenzFile |
| @Override |
| protected void expandFile(FileUtils fileUtils, File srcF, File dir) { |
| if (!srcF.exists()) { |
| throw new BuildException("Unable to expand " + srcF |
| + " as the file does not exist", |
| getLocation()); |
| } |
| log("Expanding: " + srcF + " into " + dir, Project.MSG_INFO); |
| FileNameMapper mapper = getMapper(); |
| SevenZFile outer = null; |
| try { |
| final SevenZFile zf = outer = new SevenZFile(srcF); |
| boolean empty = true; |
| SevenZArchiveEntry ze = zf.getNextEntry(); |
| while (ze != null) { |
| empty = false; |
| /* TODO implement canReadEntryData in CC |
| if (getSkipUnreadableEntries() && !zf.canReadEntryData(ze)) { |
| log(Messages.skippedIsUnreadable(ze)); |
| continue; |
| } |
| */ |
| log("extracting " + ze.getName(), Project.MSG_DEBUG); |
| try (InputStream is = new InputStream() { |
| @Override |
| public int read() throws IOException { |
| return zf.read(); |
| } |
| @Override |
| public int read(byte[] b) throws IOException { |
| return zf.read(b); |
| } |
| }) { |
| extractFile(fileUtils, srcF, dir, is, |
| ze.getName(), ze.getLastModifiedDate(), |
| ze.isDirectory(), mapper); |
| } |
| ze = zf.getNextEntry(); |
| } |
| if (empty && getFailOnEmptyArchive()) { |
| throw new BuildException("archive '" + srcF + "' is empty"); |
| } |
| log("expand complete", Project.MSG_VERBOSE); |
| } catch (IOException ioe) { |
| throw new BuildException( |
| "Error while expanding " + srcF.getPath() |
| + "\n" + ioe.toString(), |
| ioe); |
| } finally { |
| if (outer != null) { |
| try { |
| outer.close(); |
| } catch (IOException ex) { |
| // swallow |
| } |
| } |
| } |
| } |
| |
| } |