diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/depend/DirectoryIterator.java')
| -rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/depend/DirectoryIterator.java | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/depend/DirectoryIterator.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/depend/DirectoryIterator.java deleted file mode 100644 index ebf244a5..00000000 --- a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/optional/depend/DirectoryIterator.java +++ /dev/null @@ -1,164 +0,0 @@ -/* - * 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.taskdefs.optional.depend; - -import java.io.File; -import java.io.FileInputStream; -import java.io.IOException; -import java.util.Enumeration; -import java.util.Stack; -import java.util.Vector; - -/** - * An iterator which iterates through the contents of a java directory. The - * iterator should be created with the directory at the root of the Java - * namespace. - * - */ -public class DirectoryIterator implements ClassFileIterator { - - /** - * This is a stack of current iterators supporting the depth first - * traversal of the directory tree. - */ - private Stack enumStack; - - /** - * The current directory iterator. As directories encounter lower level - * directories, the current iterator is pushed onto the iterator stack - * and a new iterator over the sub directory becomes the current - * directory. This implements a depth first traversal of the directory - * namespace. - */ - private Enumeration currentEnum; - - /** - * Creates a directory iterator. The directory iterator is created to - * scan the root directory. If the changeInto flag is given, then the - * entries returned will be relative to this directory and not the - * current directory. - * - * @param rootDirectory the root if the directory namespace which is to - * be iterated over - * @param changeInto if true then the returned entries will be relative - * to the rootDirectory and not the current directory. - * @exception IOException if there is a problem reading the directory - * information. - */ - public DirectoryIterator(File rootDirectory, boolean changeInto) - throws IOException { - super(); - - enumStack = new Stack(); - - Vector filesInRoot = getDirectoryEntries(rootDirectory); - - currentEnum = filesInRoot.elements(); - } - - /** - * Get a vector covering all the entries (files and subdirectories in a - * directory). - * - * @param directory the directory to be scanned. - * @return a vector containing File objects for each entry in the - * directory. - */ - private Vector getDirectoryEntries(File directory) { - Vector files = new Vector(); - - // File[] filesInDir = directory.listFiles(); - String[] filesInDir = directory.list(); - - if (filesInDir != null) { - int length = filesInDir.length; - - for (int i = 0; i < length; ++i) { - files.addElement(new File(directory, filesInDir[i])); - } - } - - return files; - } - - /** - * Template method to allow subclasses to supply elements for the - * iteration. The directory iterator maintains a stack of iterators - * covering each level in the directory hierarchy. The current iterator - * covers the current directory being scanned. If the next entry in that - * directory is a subdirectory, the current iterator is pushed onto the - * stack and a new iterator is created for the subdirectory. If the - * entry is a file, it is returned as the next element and the iterator - * remains valid. If there are no more entries in the current directory, - * the topmost iterator on the stack is popped off to become the - * current iterator. - * - * @return the next ClassFile in the iteration. - */ - public ClassFile getNextClassFile() { - ClassFile nextElement = null; - - try { - while (nextElement == null) { - if (currentEnum.hasMoreElements()) { - File element = (File) currentEnum.nextElement(); - - if (element.isDirectory()) { - - // push the current iterator onto the stack and then - // iterate through this directory. - enumStack.push(currentEnum); - - Vector files = getDirectoryEntries(element); - - currentEnum = files.elements(); - } else { - - // we have a file. create a stream for it - FileInputStream inFileStream - = new FileInputStream(element); - - if (element.getName().endsWith(".class")) { - - // create a data input stream from the jar - // input stream - ClassFile javaClass = new ClassFile(); - - javaClass.read(inFileStream); - - nextElement = javaClass; - } - } - } else { - // this iterator is exhausted. Can we pop one off the stack - if (enumStack.empty()) { - break; - } else { - currentEnum = (Enumeration) enumStack.pop(); - } - } - } - } catch (IOException e) { - nextElement = null; - } - - return nextElement; - } - -} - |