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products/sources/formale Sprachen/Java/Tomcat/java/org/apache/catalina/ (Apache Software Stiftung Version 2.4.65^©) Datei vom 10.10.2023 mit Größe 4 kB

Quelle WebResource.java Sprache: 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.catalina;

import java.io.InputStream;
import java.net.URL;
import java.security.cert.Certificate;
import java.util.jar.Manifest;

/**
* Represents a file or directory within a web application. It borrows heavily
* from {@link java.io.File}.
*/
public interface WebResource {
    /**
     * @return {@link java.io.File#lastModified()}.
     */
    long getLastModified();

    /**
     * @return the last modified time of this resource in the correct format for
     * the HTTP Last-Modified header as specified by RFC 2616.
     */
    String getLastModifiedHttp();

    /**
     * @return {@link java.io.File#exists()}.
     */
    boolean exists();

    /**
     * Indicates if this resource is required for applications to correctly scan
     * the file structure but that does not exist in either the main or any
     * additional {@link WebResourceSet}. For example, if an external
     * directory is mapped to /WEB-INF/lib in an otherwise empty web
     * application, /WEB-INF will be represented as a virtual resource.
     *
     * @return <code>true</code> for a virtual resource
     */
    boolean isVirtual();

    /**
     * @return {@link java.io.File#isDirectory()}.
     */
    boolean isDirectory();

    /**
     * @return {@link java.io.File#isFile()}.
     */
    boolean isFile();

    /**
     * @return {@link java.io.File#delete()}.
     */
    boolean delete();

    /**
     * @return {@link java.io.File#getName()}.
     */
    String getName();

    /**
     * @return {@link java.io.File#length()}.
     */
    long getContentLength();

    /**
     * @return {@link java.io.File#getCanonicalPath()}.
     */
    String getCanonicalPath();

    /**
     * @return {@link java.io.File#canRead()}.
     */
    boolean canRead();

    /**
     * @return The path of this resource relative to the web application root. If the
     * resource is a directory, the return value will end in '/'.
     */
    String getWebappPath();

    /**
     * Return the strong ETag if available (currently not supported) else return
     * the weak ETag calculated from the content length and last modified.
     *
     * @return  The ETag for this resource
     */
    String getETag();

    /**
     * Set the MIME type for this Resource.
     *
     * @param mimeType The mime type that will be associated with the resource
     */
    void setMimeType(String mimeType);

    /**
     * @return the MIME type for this Resource.
     */
    String getMimeType();

    /**
     * Obtain an InputStream based on the contents of this resource.
     *
     * @return  An InputStream based on the contents of this resource or
     *          <code>null</code> if the resource does not exist or does not
     *          represent a file
     */
    InputStream getInputStream();

    /**
     * @return the binary content of this resource or {@code null} if it is not
     *         available in a byte[] because, for example, it is too big.
     */
    byte[] getContent();

    /**
     * @return The time the file was created. If not available, the result of
     * {@link #getLastModified()} will be returned.
     */
    long getCreation();

    /**
     * @return a URL to access the resource or <code>null</code> if no such URL
     * is available or if the resource does not exist.
     */
    URL getURL();

    /**
     * @return the code base for this resource that will be used when looking up the
     * assigned permissions for the code base in the security policy file when
     * running under a security manager.
     */
    URL getCodeBase();

    /**
     * @return a reference to the WebResourceRoot of which this WebResource is a
     * part.
     */
    WebResourceRoot getWebResourceRoot();

    /**
     * @return the certificates that were used to sign this resource to verify
     * it or @null if none.
     *
     * @see java.util.jar.JarEntry#getCertificates()
     */
    Certificate[] getCertificates();

    /**
     * @return the manifest associated with this resource or @null if none.
     *
     * @see java.util.jar.JarFile#getManifest()
     */
    Manifest getManifest();
}

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