- /*
- * Copyright 2001-2002,2004 The Apache Software Foundation
- *
- * Licensed 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.optional.depend;
-
- import java.io.File;
- import java.util.Enumeration;
- import java.util.Hashtable;
- import java.util.Vector;
- import org.apache.tools.ant.BuildException;
- import org.apache.tools.ant.DirectoryScanner;
- import org.apache.tools.ant.types.Path;
- import org.apache.tools.ant.util.depend.DependencyAnalyzer;
-
-
- /**
- * An interface used to describe the actions required by any type of
- * directory scanner.
- *
- */
- public class DependScanner extends DirectoryScanner {
- /**
- * The name of the analyzer to use by default.
- */
- public static final String DEFAULT_ANALYZER_CLASS
- = "org.apache.tools.ant.util.depend.bcel.FullAnalyzer";
-
- /**
- * The base directory for the scan
- */
- private File basedir;
-
- /**
- * The root classes to drive the search for dependent classes
- */
- private Vector rootClasses;
-
- /**
- * The names of the classes to include in the fileset
- */
- private Vector included;
-
- /**
- * The parent scanner which gives the basic set of files. Only files which
- * are in this set and which can be reached from a root class will end
- * up being included in the result set
- */
- private DirectoryScanner parentScanner;
-
- /**
- * Create a DependScanner, using the given scanner to provide the basic
- * set of files from which class files come.
- *
- * @param parentScanner the DirectoryScanner which returns the files from
- * which class files must come.
- */
- public DependScanner(DirectoryScanner parentScanner) {
- this.parentScanner = parentScanner;
- }
-
- /**
- * Sets the basedir for scanning. This is the directory that is scanned
- * recursively.
- *
- * @param basedir the basedir for scanning
- */
- public void setBasedir(File basedir) {
- this.basedir = basedir;
- }
-
- /**
- * Gets the basedir that is used for scanning.
- *
- * @return the basedir that is used for scanning
- */
- public File getBasedir() { return basedir; }
-
- /**
- * Sets the root classes to be used to drive the scan.
- *
- * @param rootClasses the rootClasses to be used for this scan
- */
- public void setRootClasses(Vector rootClasses) {
- this.rootClasses = rootClasses;
- }
-
- /**
- * Get the names of the class files, baseClass depends on
- *
- * @return the names of the files
- */
- public String[] getIncludedFiles() {
- int count = included.size();
- String[] files = new String[count];
- for (int i = 0; i < count; i++) {
- files[i] = (String) included.elementAt(i);
- }
- return files;
- }
-
- /**
- * Scans the base directory for files that baseClass depends on
- *
- * @exception IllegalStateException when basedir was set incorrecly
- */
- public void scan() throws IllegalStateException {
- included = new Vector();
- String analyzerClassName = DEFAULT_ANALYZER_CLASS;
- DependencyAnalyzer analyzer = null;
- try {
- Class analyzerClass = Class.forName(analyzerClassName);
- analyzer = (DependencyAnalyzer) analyzerClass.newInstance();
- } catch (Exception e) {
- throw new BuildException("Unable to load dependency analyzer: "
- + analyzerClassName, e);
- }
- analyzer.addClassPath(new Path(null, basedir.getPath()));
-
- for (Enumeration e = rootClasses.elements(); e.hasMoreElements();) {
- String rootClass = (String) e.nextElement();
- analyzer.addRootClass(rootClass);
- }
-
- Enumeration e = analyzer.getClassDependencies();
-
- String[] parentFiles = parentScanner.getIncludedFiles();
- Hashtable parentSet = new Hashtable();
- for (int i = 0; i < parentFiles.length; ++i) {
- parentSet.put(parentFiles[i], parentFiles[i]);
- }
-
- while (e.hasMoreElements()) {
- String classname = (String) e.nextElement();
- String filename = classname.replace('.', File.separatorChar);
- filename = filename + ".class";
- File depFile = new File(basedir, filename);
- if (depFile.exists() && parentSet.containsKey(filename)) {
- // This is included
- included.addElement(filename);
- }
- }
- }
-
- /**
- * @see DirectoryScanner#addDefaultExcludes
- */
- public void addDefaultExcludes() {
- }
-
- /**
- * @see DirectoryScanner#getExcludedDirectories
- */
- public String[] getExcludedDirectories() {
- return null;
- }
-
- /**
- * @see DirectoryScanner#getExcludedFiles
- */
- public String[] getExcludedFiles() {
- return null;
- }
-
- /**
- * @see DirectoryScanner#getIncludedDirectories
- */
- public String[] getIncludedDirectories() {
- return new String[0];
- }
-
- /**
- * @see DirectoryScanner#getNotIncludedDirectories
- */
- public String[] getNotIncludedDirectories() {
- return null;
- }
-
- /**
- * @see DirectoryScanner#getNotIncludedFiles
- */
- public String[] getNotIncludedFiles() {
- return null;
- }
-
- /**
- * @see DirectoryScanner#setExcludes
- */
- public void setExcludes(String[] excludes) {
- }
-
- /**
- * @see DirectoryScanner#setIncludes
- */
- public void setIncludes(String[] includes) {
- }
-
- /**
- * @see DirectoryScanner#setCaseSensitive
- */
- public void setCaseSensitive(boolean isCaseSensitive) {
- }
- }