/*
* 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.catalina;
import java.io.InputStream;
import java.net.URL;
import java.util.Set;
/**
* Represents a set of resources that are part of a web application . Examples
* include a directory structure , a resources JAR and a WAR file .
*/
public interface WebResourceSet extends Lifecycle {
/**
* Obtain the object that represents the resource at the given path . Note
* the resource at that path may not exist .
*
* @ param path The path for the resource of interest relative to the root
* of the web application . It must start with ' / ' .
*
* @ return The object that represents the resource at the given path
*/
WebResource getResource(String path);
/**
* Obtain the list of the names of all of the files and directories located
* in the specified directory .
*
* @ param path The path for the resource of interest relative to the root
* of the web application . It must start with ' / ' .
*
* @ return The list of resources . If path does not refer to a directory
* then a zero length array will be returned .
*/
String[] list(String path);
/**
* Obtain the Set of the web applications pathnames of all of the files and
* directories located in the specified directory . Paths representing
* directories will end with a " / " character .
*
* @ param path The path for the resource of interest relative to the root
* of the web application . It must start with ' / ' .
*
* @ return The Set of resources . If path does not refer to a directory
* then an empty set will be returned .
*/
Set<String> listWebAppPaths(String path);
/**
* Create a new directory at the given path .
*
* @ param path The path for the new resource to create relative to the root
* of the web application . It must start with ' / ' .
*
* @ return < code > true < / code > if the directory was created , otherwise
* < code > false < / code >
*/
boolean mkdir(String path);
/**
* Create a new resource at the requested path using the provided
* InputStream .
*
* @ param path The path to be used for the new Resource . It is relative
* to the root of the web application and must start with
* ' / ' .
* @ param is The InputStream that will provide the content for the
* new Resource .
* @ param overwrite If < code > true < / code > and the resource already exists it
* will be overwritten . If < code > false < / code > and the
* resource already exists the write will fail .
*
* @ return < code > true < / code > if and only if the new Resource is written
*/
boolean write(String path, InputStream is, boolean overwrite);
void setRoot(WebResourceRoot root);
/**
* Should resources returned by this resource set only be included in any
* results when the lookup is explicitly looking for class loader resources .
* i . e . should these resources be excluded from look ups that are explicitly
* looking for static ( non - class loader ) resources .
*
* @ return < code > true < / code > if these resources should only be used for
* class loader resource lookups , otherwise < code > false < / code >
*/
boolean getClassLoaderOnly();
void setClassLoaderOnly(boolean classLoaderOnly);
/**
* Should resources returned by this resource set only be included in any
* results when the lookup is explicitly looking for static ( non - class
* loader ) resources . i . e . should these resources be excluded from look ups
* that are explicitly looking for class loader resources .
*
* @ return < code > true < / code > if these resources should only be used for
* static ( non - class loader ) resource lookups , otherwise
* < code > false < / code >
*/
boolean getStaticOnly();
void setStaticOnly(boolean staticOnly);
/**
* Obtain the base URL for this set of resources . One of the uses of this is
* to grant read permissions to the resources when running under a security
* manager .
*
* @ return The base URL for this set of resources
*/
URL getBaseUrl();
/**
* Configures whether or not this set of resources is read - only .
*
* @ param readOnly < code > true < / code > if this set of resources should be
* configured to be read - only
*
* @ throws IllegalArgumentException if an attempt is made to configure a
* { @ link WebResourceSet } that is hard - coded to be read - only as
* writable
*/
void setReadOnly(boolean readOnly);
/**
* Obtains the current value of the read - only setting for this set of
* resources .
*
* @ return < code > true < / code > if this set of resources is configured to be
* read - only , otherwise < code > false < / code >
*/
boolean isReadOnly();
/**
* Implementations may cache some information to improve performance . This
* method triggers the clean - up of those resources .
*/
void gc();
}
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(vorverarbeitet am 2026-06-10)
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