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AntEnvironment.java
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AntEnvironment.java
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/*
* Copyright (c) 2011-2024 Qulice.com
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met: 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer. 2) Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution. 3) Neither the name of the Qulice.com nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.qulice.ant;
import com.jcabi.log.Logger;
import com.qulice.spi.Environment;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.security.PrivilegedAction;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.DirectoryFileFilter;
import org.apache.commons.io.filefilter.IOFileFilter;
import org.apache.commons.io.filefilter.WildcardFileFilter;
/**
* Environment, passed from ant task to validators.
* @since 0.13
*/
public final class AntEnvironment implements Environment {
/**
* Ant project.
*/
private final AntProject project;
/**
* Sources dirs.
*/
private final AntPath sources;
/**
* Classes dir (only one dir is supported).
*/
private final File classes;
/**
* Classpath dirs and files.
*/
@SuppressWarnings("PMD.AvoidFieldNameMatchingMethodName")
private final AntPath classpath;
/**
* Public ctor.
* @param prjct Ant project
* @param srcs Sources dirs
* @param clss Classes dir
* @param clsspth Classpath
* @checkstyle ParameterNumber (5 lines)
*/
public AntEnvironment(
final AntProject prjct,
final AntPath srcs,
final File clss,
final AntPath clsspth) {
this.project = prjct;
this.sources = srcs;
this.classes = clss;
this.classpath = clsspth;
}
@Override
public File basedir() {
return this.project.getBaseDir();
}
@Override
public File tempdir() {
return new File(this.basedir(), "temp");
}
@Override
public File outdir() {
return this.classes;
}
@Override
public String param(final String name, final String value) {
String property = this.project.getProperty(name);
if (property == null) {
property = value;
}
return property;
}
@Override
@SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
public ClassLoader classloader() {
final List<URL> urls = new LinkedList<>();
try {
for (final String path : this.classpath()) {
urls.add(
new File(path).toURI().toURL()
);
}
urls.add(this.classes.toURI().toURL());
} catch (final MalformedURLException ex) {
throw new IllegalStateException("Failed to build URL", ex);
}
final URLClassLoader loader =
new AntEnvironment.PrivilegedClassLoader(urls).run();
for (final URL url : loader.getURLs()) {
Logger.debug(this, "Classpath: %s", url);
}
return loader;
}
@Override
public Collection<String> classpath() {
return Arrays.asList(this.classpath.list());
}
@Override
@SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
public Collection<File> files(final String pattern) {
final Collection<File> files = new LinkedList<>();
final IOFileFilter filter = new WildcardFileFilter(pattern);
for (final String dir : this.sources.list()) {
final File source = new File(dir);
if (source.exists() && source.isDirectory()) {
files.addAll(
FileUtils.listFiles(
source,
filter,
DirectoryFileFilter.INSTANCE
)
);
}
}
return files;
}
@Override
// @todo #337 Implement exclude and excludes for ant QuliceTask
public boolean exclude(final String check, final String name) {
return false;
}
@Override
public Collection<String> excludes(final String checker) {
return Collections.emptyList();
}
/**
* Creates URL ClassLoader in privileged block.
*
* @since 0.1
*/
private static final class PrivilegedClassLoader implements
PrivilegedAction<URLClassLoader> {
/**
* URLs for class loading.
*/
private final List<URL> urls;
/**
* Constructor.
* @param urls URLs for class loading.
*/
private PrivilegedClassLoader(final List<URL> urls) {
this.urls = urls;
}
@Override
public URLClassLoader run() {
return new URLClassLoader(
this.urls.toArray(new URL[this.urls.size()]),
Thread.currentThread().getContextClassLoader()
);
}
}
}