org.teamapps.ux.servlet.resourceprovider.ClassPathResourceProvider Maven / Gradle / Ivy
/*-
* ========================LICENSE_START=================================
* TeamApps
* ---
* Copyright (C) 2014 - 2023 TeamApps.org
* ---
* 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.
* =========================LICENSE_END==================================
*/
package org.teamapps.ux.servlet.resourceprovider;
import com.google.common.annotations.VisibleForTesting;
import org.teamapps.ux.resource.ClassPathResource;
import org.teamapps.ux.resource.Resource;
import java.util.function.Function;
public class ClassPathResourceProvider implements ResourceProvider {
private final String basePackage;
private final Function javaResourceNameToMimeTypeFunction;
public ClassPathResourceProvider(String basePackage) {
this(basePackage, s -> null);
}
public ClassPathResourceProvider(String basePackage, Function javaResourceNameToMimeTypeFunction) {
this.basePackage = normalizeClassPathResourcePath(basePackage);
this.javaResourceNameToMimeTypeFunction = javaResourceNameToMimeTypeFunction;
}
@Override
public Resource getResource(String servletPath, String relativeResourcePath, String httpSessionId) {
return new ClassPathResource(getJavaResourceName(relativeResourcePath),
javaResourceNameToMimeTypeFunction.apply(relativeResourcePath));
}
private String getJavaResourceName(String resource) {
return basePackage + resource;
}
@VisibleForTesting
static String normalizeClassPathResourcePath(String basePackage) {
if (!basePackage.contains("/") && basePackage.contains(".")) {
basePackage = basePackage.replaceAll("\\.", "/");
}
if (!basePackage.startsWith("/")) {
basePackage = "/" + basePackage;
}
if (basePackage.endsWith("/")) {
basePackage = basePackage.substring(0, basePackage.length() - 1);
}
return basePackage;
}
}