| /* |
| * 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 java.io.FilterInputStream; |
| |
| 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.ResourceCollection; |
| import org.apache.tools.ant.types.Reference; |
| import org.apache.tools.ant.util.FileUtils; |
| import org.apache.tools.zip.ZipFile; |
| import org.apache.tools.zip.ZipEntry; |
| |
| /** |
| * A Resource representation of an entry in a zipfile. |
| * @since Ant 1.7 |
| */ |
| public class ZipResource extends ArchiveResource { |
| |
| private String encoding; |
| |
| /** |
| * Default constructor. |
| */ |
| public ZipResource() { |
| } |
| |
| /** |
| * Construct a ZipResource representing the specified |
| * entry in the specified zipfile. |
| * @param z the zipfile as File. |
| * @param enc the encoding used for filenames. |
| * @param e the ZipEntry. |
| */ |
| public ZipResource(File z, String enc, ZipEntry e) { |
| super(z, true); |
| setEncoding(enc); |
| setEntry(e); |
| } |
| |
| /** |
| * Set the zipfile that holds this ZipResource. |
| * @param z the zipfile as a File. |
| */ |
| public void setZipfile(File z) { |
| setArchive(z); |
| } |
| |
| /** |
| * Get the zipfile that holds this ZipResource. |
| * @return the zipfile as a File. |
| */ |
| public File getZipfile() { |
| FileResource r = (FileResource) getArchive(); |
| return r.getFile(); |
| } |
| |
| /** |
| * Sets the archive that holds this as a single element Resource |
| * collection. |
| * @param a the archive as a single element Resource collection. |
| */ |
| public void addConfigured(ResourceCollection a) { |
| super.addConfigured(a); |
| if (!a.isFilesystemOnly()) { |
| throw new BuildException("only filesystem resources are supported"); |
| } |
| } |
| |
| /** |
| * Set the encoding to use with the zipfile. |
| * @param enc the String encoding. |
| */ |
| public void setEncoding(String enc) { |
| checkAttributesAllowed(); |
| encoding = enc; |
| } |
| |
| /** |
| * Get the encoding to use with the zipfile. |
| * @return String encoding. |
| */ |
| public String getEncoding() { |
| return isReference() |
| ? ((ZipResource) getCheckedRef()).getEncoding() : encoding; |
| } |
| |
| /** |
| * Overrides the super version. |
| * @param r the Reference to set. |
| */ |
| public void setRefid(Reference r) { |
| if (encoding != null) { |
| throw tooManyAttributes(); |
| } |
| super.setRefid(r); |
| } |
| |
| /** |
| * Return an InputStream for reading the contents of this Resource. |
| * @return an InputStream object. |
| * @throws IOException if the zip file cannot be opened, |
| * or the entry cannot be read. |
| */ |
| public InputStream getInputStream() throws IOException { |
| if (isReference()) { |
| return ((Resource) getCheckedRef()).getInputStream(); |
| } |
| final ZipFile z = new ZipFile(getZipfile(), getEncoding()); |
| ZipEntry ze = z.getEntry(getName()); |
| if (ze == null) { |
| z.close(); |
| throw new BuildException("no entry " + getName() + " in " |
| + getArchive()); |
| } |
| return new FilterInputStream(z.getInputStream(ze)) { |
| public void close() throws IOException { |
| FileUtils.close(in); |
| z.close(); |
| } |
| protected void finalize() throws Throwable { |
| try { |
| close(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| }; |
| } |
| |
| /** |
| * 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 zip task for zip output."); |
| } |
| |
| /** |
| * fetches information from the named entry inside the archive. |
| */ |
| protected void fetchEntry() { |
| ZipFile z = null; |
| try { |
| z = new ZipFile(getZipfile(), getEncoding()); |
| setEntry(z.getEntry(getName())); |
| } catch (IOException e) { |
| log(e.getMessage(), Project.MSG_DEBUG); |
| throw new BuildException(e); |
| } finally { |
| if (z != null) { |
| try { |
| z.close(); |
| } catch (IOException e) { |
| //? |
| } |
| } |
| } |
| } |
| |
| private void setEntry(ZipEntry e) { |
| if (e == null) { |
| setExists(false); |
| return; |
| } |
| setName(e.getName()); |
| setExists(true); |
| setLastModified(e.getTime()); |
| setDirectory(e.isDirectory()); |
| setSize(e.getSize()); |
| setMode(e.getUnixMode()); |
| } |
| |
| } |