| /* |
| * 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; |
| |
| import java.io.File; |
| import java.util.StringTokenizer; |
| import java.util.Vector; |
| import java.util.Iterator; |
| |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.types.resources.FileResourceIterator; |
| |
| /** |
| * FileList represents an explicitly named list of files. FileLists |
| * are useful when you want to capture a list of files regardless of |
| * whether they currently exist. By contrast, FileSet operates as a |
| * filter, only returning the name of a matched file if it currently |
| * exists in the file system. |
| */ |
| public class FileList extends DataType implements ResourceCollection { |
| |
| private Vector filenames = new Vector(); |
| private File dir; |
| |
| /** |
| * The default constructor. |
| * |
| */ |
| public FileList() { |
| super(); |
| } |
| |
| /** |
| * A copy constructor. |
| * |
| * @param filelist a <code>FileList</code> value |
| */ |
| protected FileList(FileList filelist) { |
| this.dir = filelist.dir; |
| this.filenames = filelist.filenames; |
| setProject(filelist.getProject()); |
| } |
| |
| /** |
| * Makes this instance in effect a reference to another FileList |
| * instance. |
| * |
| * <p>You must not set another attribute or nest elements inside |
| * this element if you make it a reference.</p> |
| * @param r the reference to another filelist. |
| * @exception BuildException if an error occurs. |
| */ |
| public void setRefid(Reference r) throws BuildException { |
| if ((dir != null) || (filenames.size() != 0)) { |
| throw tooManyAttributes(); |
| } |
| super.setRefid(r); |
| } |
| |
| /** |
| * Set the dir attribute. |
| * |
| * @param dir the directory this filelist is relative to. |
| * @exception BuildException if an error occurs |
| */ |
| public void setDir(File dir) throws BuildException { |
| checkAttributesAllowed(); |
| this.dir = dir; |
| } |
| |
| /** |
| * @param p the current project |
| * @return the directory attribute |
| */ |
| public File getDir(Project p) { |
| if (isReference()) { |
| return getRef(p).getDir(p); |
| } |
| return dir; |
| } |
| |
| /** |
| * Set the filenames attribute. |
| * |
| * @param filenames a string contains filenames, separated by , or |
| * by whitespace. |
| */ |
| public void setFiles(String filenames) { |
| checkAttributesAllowed(); |
| if (filenames != null && filenames.length() > 0) { |
| StringTokenizer tok = new StringTokenizer( |
| filenames, ", \t\n\r\f", false); |
| while (tok.hasMoreTokens()) { |
| this.filenames.addElement(tok.nextToken()); |
| } |
| } |
| } |
| |
| /** |
| * Returns the list of files represented by this FileList. |
| * @param p the current project |
| * @return the list of files represented by this FileList. |
| */ |
| public String[] getFiles(Project p) { |
| if (isReference()) { |
| return getRef(p).getFiles(p); |
| } |
| |
| if (dir == null) { |
| throw new BuildException("No directory specified for filelist."); |
| } |
| |
| if (filenames.size() == 0) { |
| throw new BuildException("No files specified for filelist."); |
| } |
| |
| String[] result = new String[filenames.size()]; |
| filenames.copyInto(result); |
| return result; |
| } |
| |
| /** |
| * Performs the check for circular references and returns the |
| * referenced FileList. |
| * @param p the current project |
| * @return the FileList represented by a referenced filelist. |
| */ |
| protected FileList getRef(Project p) { |
| return (FileList) getCheckedRef(p); |
| } |
| |
| /** |
| * Inner class corresponding to the <file> nested element. |
| */ |
| public static class FileName { |
| private String name; |
| |
| /** |
| * The name attribute of the file element. |
| * |
| * @param name the name of a file to add to the file list. |
| */ |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| /** |
| * @return the name of the file for this element. |
| */ |
| public String getName() { |
| return name; |
| } |
| } |
| |
| /** |
| * Add a nested <file> nested element. |
| * |
| * @param name a configured file element with a name. |
| * @since Ant 1.6.2 |
| */ |
| public void addConfiguredFile(FileName name) { |
| if (name.getName() == null) { |
| throw new BuildException( |
| "No name specified in nested file element"); |
| } |
| filenames.addElement(name.getName()); |
| } |
| |
| /** |
| * Fulfill the ResourceCollection contract. |
| * @return an Iterator of Resources. |
| * @since Ant 1.7 |
| */ |
| public Iterator iterator() { |
| if (isReference()) { |
| return ((FileList) getRef(getProject())).iterator(); |
| } |
| return new FileResourceIterator(dir, |
| (String[]) (filenames.toArray(new String[filenames.size()]))); |
| } |
| |
| /** |
| * Fulfill the ResourceCollection contract. |
| * @return number of elements as int. |
| * @since Ant 1.7 |
| */ |
| public int size() { |
| if (isReference()) { |
| return ((FileList) getRef(getProject())).size(); |
| } |
| return filenames.size(); |
| } |
| |
| /** |
| * Always returns true. |
| * @return true indicating that all elements will be FileResources. |
| * @since Ant 1.7 |
| */ |
| public boolean isFilesystemOnly() { |
| return true; |
| } |
| |
| } |