PackageNameHolder.java
/*
* 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.basepom.mojo.duplicatefinder.classpath;
import java.util.List;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Manages the package in which resources and classes reside. Keeps track of the current package when
* traversing local folders for classes and resources.
*/
class PackageNameHolder {
private final ImmutableList<String> packages;
private final String packageName;
private final String path;
PackageNameHolder(final List<String> packages) {
this.packages = ImmutableList.copyOf(checkNotNull(packages, "packages is null"));
this.packageName = Joiner.on('.').join(packages);
this.path = Joiner.on('/').join(packages);
}
PackageNameHolder() {
this.packages = ImmutableList.of();
this.packageName = "";
this.path = "";
}
PackageNameHolder getChildPackage(final String packageName) {
checkNotNull(packageName, "packageName is null");
checkArgument(packageName.length() > 0, "package name must have at least one character");
return new PackageNameHolder(ImmutableList.<String>builder().addAll(packages).add(packageName).build());
}
String getQualifiedName(final String className) {
checkNotNull(className, "className is null");
return packages.isEmpty() ? className : packageName + "." + className;
}
String getQualifiedPath(final String className) {
checkNotNull(className, "className is null");
return packages.isEmpty() ? className : path + "/" + className;
}
@Override
public String toString() {
return getClass().getSimpleName() + "(" + packageName + ")";
}
}