/*
* Copyright 2010 the original author or authors.
*
* 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.gradle.api.internal.file;
import groovy.lang.Closure;
import org.codehaus.groovy.runtime.DefaultGroovyMethods;
import org.gradle.api.Action;
import org.gradle.api.file.*;
import org.gradle.api.specs.Spec;
import org.gradle.api.tasks.TaskDependency;
import org.gradle.api.tasks.util.PatternFilterable;
import org.gradle.api.tasks.util.PatternSet;
import org.gradle.internal.Cast;
import java.io.File;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.gradle.util.ConfigureUtil.configure;
public abstract class AbstractFileTree extends AbstractFileCollection implements FileTreeInternal {
public Set<File> getFiles() {
final Set<File> files = new LinkedHashSet<File>();
visit(new EmptyFileVisitor() {
public void visitFile(FileVisitDetails fileDetails) {
files.add(fileDetails.getFile());
}
});
return files;
}
@Override
public boolean isEmpty() {
final AtomicBoolean found = new AtomicBoolean();
visit(new EmptyFileVisitor() {
public void visitFile(FileVisitDetails fileDetails) {
found.set(true);
fileDetails.stopVisiting();
}
});
return !found.get();
}
public FileTree matching(Closure filterConfigClosure) {
return matching(configure(filterConfigClosure, new PatternSet()));
}
@Override
public FileTree matching(Action<? super PatternFilterable> filterConfigAction) {
PatternSet patternSet = new PatternSet();
filterConfigAction.execute(patternSet);
return matching(patternSet);
}
public FileTree matching(PatternFilterable patterns) {
PatternSet patternSet = (PatternSet) patterns;
return new FilteredFileTreeImpl(this, patternSet.getAsSpec());
}
public Map<String, File> getAsMap() {
final Map<String, File> map = new LinkedHashMap<String, File>();
visit(new EmptyFileVisitor() {
public void visitFile(FileVisitDetails fileDetails) {
map.put(fileDetails.getRelativePath().getPathString(), fileDetails.getFile());
}
});
return map;
}
@Override
protected void addAsResourceCollection(Object builder, String nodeName) {
new AntFileTreeBuilder(getAsMap()).addToAntBuilder(builder, nodeName);
}
/**
* Visits all the files of this tree.
*/
protected boolean visitAll() {
final AtomicBoolean hasContent = new AtomicBoolean();
visit(new FileVisitor() {
public void visitDir(FileVisitDetails dirDetails) {
dirDetails.getFile();
hasContent.set(true);
}
public void visitFile(FileVisitDetails fileDetails) {
fileDetails.getFile();
hasContent.set(true);
}
});
return hasContent.get();
}
@Override
public FileTree getAsFileTree() {
return this;
}
public FileTree plus(FileTree fileTree) {
return new UnionFileTree(this, Cast.cast(FileTreeInternal.class, fileTree));
}
public FileTree visit(Closure closure) {
return visit(fileVisitorFrom(closure));
}
static FileVisitor fileVisitorFrom(Closure closure) {
return DefaultGroovyMethods.asType(closure, FileVisitor.class);
}
@Override
public FileTree visit(final Action<? super FileVisitDetails> visitor) {
return visit(new FileVisitor() {
@Override
public void visitDir(FileVisitDetails dirDetails) {
visitor.execute(dirDetails);
}
@Override
public void visitFile(FileVisitDetails fileDetails) {
visitor.execute(fileDetails);
}
});
}
@Override
public void visitTreeOrBackingFile(FileVisitor visitor) {
visit(visitor);
}
@Override
public void visitRootElements(FileCollectionVisitor visitor) {
visitor.visitTree(this);
}
private static class FilteredFileTreeImpl extends AbstractFileTree {
private final AbstractFileTree fileTree;
private final Spec<FileTreeElement> spec;
public FilteredFileTreeImpl(AbstractFileTree fileTree, Spec<FileTreeElement> spec) {
this.fileTree = fileTree;
this.spec = spec;
}
@Override
public String getDisplayName() {
return fileTree.getDisplayName();
}
@Override
public TaskDependency getBuildDependencies() {
return fileTree.getBuildDependencies();
}
public FileTree visit(final FileVisitor visitor) {
fileTree.visit(new FileVisitor() {
public void visitDir(FileVisitDetails dirDetails) {
if (spec.isSatisfiedBy(dirDetails)) {
visitor.visitDir(dirDetails);
}
}
public void visitFile(FileVisitDetails fileDetails) {
if (spec.isSatisfiedBy(fileDetails)) {
visitor.visitFile(fileDetails);
}
}
});
return this;
}
@Override
public void registerWatchPoints(FileSystemSubset.Builder builder) {
// TODO: we aren't considering the filter
fileTree.registerWatchPoints(builder);
}
@Override
public void visitTreeOrBackingFile(FileVisitor visitor) {
fileTree.visitTreeOrBackingFile(visitor);
}
}
}