eaglercraft-1.8/sources/main/java/org/apache/commons/lang3/ClassPathUtils.java
2022-12-25 01:12:28 -08:00

159 lines
5.8 KiB
Java

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.lang3;
/**
* Operations regarding the classpath.
*
* <p>
* The methods of this class do not allow {@code null} inputs.
* </p>
*
* @since 3.3
*/
//@Immutable
public class ClassPathUtils {
/**
* <p>
* {@code ClassPathUtils} instances should NOT be constructed in standard
* programming. Instead, the class should be used as
* {@code ClassPathUtils.toFullyQualifiedName(MyClass.class, "MyClass.properties");}.
* </p>
*
* <p>
* This constructor is public to permit tools that require a JavaBean instance
* to operate.
* </p>
*/
public ClassPathUtils() {
}
/**
* Returns the fully qualified name for the resource with name
* {@code resourceName} relative to the given context.
*
* <p>
* Note that this method does not check whether the resource actually exists. It
* only constructs the name. Null inputs are not allowed.
* </p>
*
* <pre>
* ClassPathUtils.toFullyQualifiedName(StringUtils.class,
* "StringUtils.properties") = "org.apache.commons.lang3.StringUtils.properties"
* </pre>
*
* @param context The context for constructing the name.
* @param resourceName the resource name to construct the fully qualified name
* for.
* @return the fully qualified name of the resource with name
* {@code resourceName}.
* @throws java.lang.NullPointerException if either {@code context} or
* {@code resourceName} is null.
*/
public static String toFullyQualifiedName(final Class<?> context, final String resourceName) {
Validate.notNull(context, "context");
Validate.notNull(resourceName, "resourceName");
return toFullyQualifiedName(context.getPackage(), resourceName);
}
/**
* Returns the fully qualified name for the resource with name
* {@code resourceName} relative to the given context.
*
* <p>
* Note that this method does not check whether the resource actually exists. It
* only constructs the name. Null inputs are not allowed.
* </p>
*
* <pre>
* ClassPathUtils.toFullyQualifiedName(StringUtils.class.getPackage(),
* "StringUtils.properties") = "org.apache.commons.lang3.StringUtils.properties"
* </pre>
*
* @param context The context for constructing the name.
* @param resourceName the resource name to construct the fully qualified name
* for.
* @return the fully qualified name of the resource with name
* {@code resourceName}.
* @throws java.lang.NullPointerException if either {@code context} or
* {@code resourceName} is null.
*/
public static String toFullyQualifiedName(final Package context, final String resourceName) {
Validate.notNull(context, "context");
Validate.notNull(resourceName, "resourceName");
return context.getName() + "." + resourceName;
}
/**
* Returns the fully qualified path for the resource with name
* {@code resourceName} relative to the given context.
*
* <p>
* Note that this method does not check whether the resource actually exists. It
* only constructs the path. Null inputs are not allowed.
* </p>
*
* <pre>
* ClassPathUtils.toFullyQualifiedPath(StringUtils.class,
* "StringUtils.properties") = "org/apache/commons/lang3/StringUtils.properties"
* </pre>
*
* @param context The context for constructing the path.
* @param resourceName the resource name to construct the fully qualified path
* for.
* @return the fully qualified path of the resource with name
* {@code resourceName}.
* @throws java.lang.NullPointerException if either {@code context} or
* {@code resourceName} is null.
*/
public static String toFullyQualifiedPath(final Class<?> context, final String resourceName) {
Validate.notNull(context, "context");
Validate.notNull(resourceName, "resourceName");
return toFullyQualifiedPath(context.getPackage(), resourceName);
}
/**
* Returns the fully qualified path for the resource with name
* {@code resourceName} relative to the given context.
*
* <p>
* Note that this method does not check whether the resource actually exists. It
* only constructs the path. Null inputs are not allowed.
* </p>
*
* <pre>
* ClassPathUtils.toFullyQualifiedPath(StringUtils.class.getPackage(),
* "StringUtils.properties") = "org/apache/commons/lang3/StringUtils.properties"
* </pre>
*
* @param context The context for constructing the path.
* @param resourceName the resource name to construct the fully qualified path
* for.
* @return the fully qualified path of the resource with name
* {@code resourceName}.
* @throws java.lang.NullPointerException if either {@code context} or
* {@code resourceName} is null.
*/
public static String toFullyQualifiedPath(final Package context, final String resourceName) {
Validate.notNull(context, "context");
Validate.notNull(resourceName, "resourceName");
return context.getName().replace('.', '/') + "/" + resourceName;
}
}