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Spice up your java: Automatic Resource Management, automatic generation of getters, setters, equals, hashCode and toString, and more!
/*
* Copyright (C) 2009-2015 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.delombok.ant;
import java.io.File;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.List;
import lombok.Lombok;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Location;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
@SuppressWarnings("unused") // we use reflection to transfer fields.
class Tasks {
public static class Format {
private String value;
@Override public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((value == null) ? 0 : value.hashCode());
return result;
}
@Override public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
Format other = (Format) obj;
if (value == null) {
if (other.value != null) return false;
} else if (!value.equals(other.value)) return false;
return true;
}
@Override public String toString() {
return "FormatOption [value=" + value + "]";
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
public static class Delombok extends Task {
private File fromDir, toDir;
private Path classpath;
private Path sourcepath;
private boolean verbose;
private String encoding;
private Path path;
private List formatOptions = new ArrayList();
public void setClasspath(Path classpath) {
if (this.classpath == null) {
this.classpath = classpath;
} else {
this.classpath.append(classpath);
}
}
public Path createClasspath() {
if (classpath == null) {
classpath = new Path(getProject());
}
return classpath.createPath();
}
public void setClasspathRef(Reference r) {
createClasspath().setRefid(r);
}
public void setSourcepath(Path sourcepath) {
if (this.sourcepath == null) {
this.sourcepath = sourcepath;
} else {
this.sourcepath.append(sourcepath);
}
}
public Path createSourcepath() {
if (sourcepath == null) {
sourcepath = new Path(getProject());
}
return sourcepath.createPath();
}
public void setSourcepathRef(Reference r) {
createSourcepath().setRefid(r);
}
public void setFrom(File dir) {
this.fromDir = dir;
}
public void setTo(File dir) {
this.toDir = dir;
}
public void setVerbose(boolean verbose) {
this.verbose = verbose;
}
public void setEncoding(String encoding) {
this.encoding = encoding;
}
public void addFileset(FileSet set) {
if (path == null) path = new Path(getProject());
path.add(set);
}
public Format createFormat() {
return new Format();
}
public void addFormat(Format format) {
formatOptions.add(format);
}
private static ClassLoader shadowLoader;
public static Class shadowLoadClass(String name) {
try {
if (shadowLoader == null) {
try {
Class.forName("lombok.core.LombokNode");
// If we get here, then lombok is already available.
shadowLoader = Delombok.class.getClassLoader();
} catch (ClassNotFoundException e) {
// If we get here, it isn't, and we should use the shadowloader.
Class launcherMain = Class.forName("lombok.launch.Main");
Method m = launcherMain.getDeclaredMethod("createShadowClassLoader");
m.setAccessible(true);
shadowLoader = (ClassLoader) m.invoke(null);
}
}
return Class.forName(name, true, shadowLoader);
} catch (Exception e) {
throw Lombok.sneakyThrow(e);
}
}
@Override
public void execute() throws BuildException {
Location loc = getLocation();
try {
Object instance = shadowLoadClass("lombok.delombok.ant.DelombokTaskImpl").newInstance();
for(Field selfField : getClass().getDeclaredFields()) {
if (selfField.isSynthetic() || Modifier.isStatic(selfField.getModifiers())) continue;
Field otherField = instance.getClass().getDeclaredField(selfField.getName());
otherField.setAccessible(true);
selfField.setAccessible(true);
if (selfField.getName().equals("formatOptions")) {
List rep = new ArrayList();
for (Format f : formatOptions) {
if (f.getValue() == null) throw new BuildException("'value' property required for ");
rep.add(f.getValue());
}
otherField.set(instance, rep);
} else {
otherField.set(instance, selfField.get(this));
}
}
Method m = instance.getClass().getMethod("execute", Location.class);
m.setAccessible(true);
m.invoke(instance, loc);
} catch (InvocationTargetException e) {
throw Lombok.sneakyThrow(e.getCause());
} catch (Exception e) {
throw Lombok.sneakyThrow(e);
}
}
}
}