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/*******************************************************************************
* Copyright (c) 2015 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public
* License v3.0 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl.html
* <p>
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.mapping.entry;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import java.util.List;
public class ClassEntry implements Entry {
private final String name;
public ClassEntry(String className) {
Preconditions.checkNotNull(className, "Class name cannot be null");
if (className.indexOf('.') >= 0) {
throw new IllegalArgumentException("Class name must be in JVM format. ie, path/to/package/class$inner : " + className);
}
this.name = className;
if (isInnerClass() && getInnermostClassName().indexOf('/') >= 0) {
throw new IllegalArgumentException("Inner class must not have a package: " + className);
}
}
public ClassEntry(ClassEntry other) {
this.name = other.name;
}
@Override
public String getName() {
return this.name;
}
@Override
public String getClassName() {
return this.name;
}
@Override
public ClassEntry getOwnerClassEntry() {
return this;
}
@Override
public ClassEntry updateOwnership(ClassEntry classEntry) {
return classEntry;
}
@Override
public int hashCode() {
return this.name.hashCode();
}
@Override
public boolean equals(Object other) {
return other instanceof ClassEntry && equals((ClassEntry) other);
}
public boolean equals(ClassEntry other) {
return other != null && this.name.equals(other.name);
}
@Override
public String toString() {
return this.name;
}
public boolean isArray() {
return this.name.lastIndexOf('[') >= 0;
}
public boolean isInnerClass() {
return this.name.lastIndexOf('$') >= 0;
}
public List<String> getClassChainNames() {
return Lists.newArrayList(this.name.split("\\$"));
}
public List<ClassEntry> getClassChain() {
List<ClassEntry> entries = Lists.newArrayList();
StringBuilder buf = new StringBuilder();
for (String name : getClassChainNames()) {
if (buf.length() > 0) {
buf.append("$");
}
buf.append(name);
entries.add(new ClassEntry(buf.toString()));
}
return entries;
}
public String getOutermostClassName() {
if (isInnerClass()) {
return this.name.substring(0, this.name.indexOf('$'));
}
return this.name;
}
public ClassEntry getOutermostClassEntry() {
return new ClassEntry(getOutermostClassName());
}
public String getOuterClassName() {
if (!isInnerClass()) {
throw new Error("This is not an inner class!");
}
return this.name.substring(0, this.name.lastIndexOf('$'));
}
public ClassEntry getOuterClassEntry() {
return new ClassEntry(getOuterClassName());
}
public String getInnermostClassName() {
if (!isInnerClass()) {
throw new Error("This is not an inner class!");
}
return this.name.substring(this.name.lastIndexOf('$') + 1);
}
public boolean isInDefaultPackage() {
return this.name.indexOf('/') < 0;
}
public String getPackageName() {
return getPackageName(this.name);
}
public String getSimpleName() {
int pos = this.name.lastIndexOf('/');
if (pos > 0) {
return this.name.substring(pos + 1);
}
return this.name;
}
public static String getPackageName(String name) {
int pos = name.lastIndexOf('/');
if (pos > 0) {
return name.substring(0, pos);
}
return null;
}
public ClassEntry buildClassEntry(List<ClassEntry> classChain) {
assert (classChain.contains(this));
StringBuilder buf = new StringBuilder();
for (ClassEntry chainEntry : classChain) {
if (buf.length() == 0) {
buf.append(chainEntry.getName());
} else {
buf.append("$");
buf.append(chainEntry.isInnerClass() ? chainEntry.getInnermostClassName() : chainEntry.getSimpleName());
}
if (chainEntry == this) {
break;
}
}
return new ClassEntry(buf.toString());
}
}
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