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/*
* 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.optional.depend;
import java.util.ArrayList;
import java.util.List;
import java.util.Stack;
import java.util.Vector;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.util.StringUtils;
/**
* A ClassfileSet is a FileSet that enlists all classes that depend on a
* certain set of root classes.
*
* ClassfileSet extends FileSet, its inherited properties
* defining the domain searched for dependent classes.
*
*/
public class ClassfileSet extends FileSet {
/**
* The list of root classes for this class file set. These are the
* classes which must be included in the fileset and which are the
* starting point for the dependency search.
*/
private List<String> rootClasses = new ArrayList<String>();
/**
* The list of filesets which contain root classes.
*/
private List<FileSet> rootFileSets = new ArrayList<FileSet>();
/**
* Inner class used to contain info about root classes.
*/
public static class ClassRoot {
/** The name of the root class */
private String rootClass;
/**
* Set the root class name.
*
* @param name the name of the root class.
*/
public void setClassname(String name) {
this.rootClass = name;
}
/**
* Get the name of the root class.
*
* @return the name of the root class.
*/
public String getClassname() {
return rootClass;
}
}
/**
* Default constructor.
*/
public ClassfileSet() {
}
/**
* Add a fileset to which contains a collection of root classes used to
* drive the search from classes.
*
* @param rootFileSet a root file set to be used to search for dependent
* classes.
*/
public void addRootFileset(FileSet rootFileSet) {
rootFileSets.add(rootFileSet);
setChecked(false);
}
/**
* Create a ClassfileSet from another ClassfileSet.
*
* @param s the other classfileset.
*/
protected ClassfileSet(ClassfileSet s) {
super(s);
rootClasses.addAll(s.rootClasses);
}
/**
* Set the root class attribute.
*
* @param rootClass the name of the root class.
*/
public void setRootClass(String rootClass) {
rootClasses.add(rootClass);
}
/**
* Return the DirectoryScanner associated with this FileSet.
*
* @param p the project used to resolve dirs, etc.
*
* @return a dependency scanner.
*/
public DirectoryScanner getDirectoryScanner(Project p) {
if (isReference()) {
return getRef(p).getDirectoryScanner(p);
}
dieOnCircularReference(p);
DirectoryScanner parentScanner = super.getDirectoryScanner(p);
DependScanner scanner = new DependScanner(parentScanner);
final Vector<String> allRootClasses = new Vector<String>(rootClasses);
for (FileSet additionalRootSet : rootFileSets) {
DirectoryScanner additionalScanner
= additionalRootSet.getDirectoryScanner(p);
String[] files = additionalScanner.getIncludedFiles();
for (int i = 0; i < files.length; ++i) {
if (files[i].endsWith(".class")) {
String classFilePath = StringUtils.removeSuffix(files[i], ".class");
String className
= classFilePath.replace('/', '.').replace('\\', '.');
allRootClasses.addElement(className);
}
}
scanner.addBasedir(additionalRootSet.getDir(p));
}
scanner.setBasedir(getDir(p));
scanner.setRootClasses(allRootClasses);
scanner.scan();
return scanner;
}
/**
* Add a nested root class definition to this class file set.
*
* @param root the configured class root.
*/
public void addConfiguredRoot(ClassRoot root) {
rootClasses.add(root.getClassname());
}
/**
* Clone this data type.
*
* @return a clone of the class file set.
*/
public Object clone() {
return new ClassfileSet(isReference()
? (ClassfileSet) (getRef(getProject())) : this);
}
protected synchronized void dieOnCircularReference(Stack<Object> stk, Project p) {
if (isChecked()) {
return;
}
// takes care of nested selectors
super.dieOnCircularReference(stk, p);
if (!isReference()) {
for (FileSet additionalRootSet : rootFileSets) {
pushAndInvokeCircularReferenceCheck(additionalRootSet, stk, p);
}
setChecked(true);
}
}
}
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