org.teamapps.ux.servlet.resourceprovider.IconResourceProvider 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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.teamapps.icons.IconResource;
import org.teamapps.icons.IconProvider;
import org.teamapps.ux.resource.Resource;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.lang.invoke.MethodHandles;
import java.util.Date;
public class IconResourceProvider implements ResourceProvider {
private static final Logger LOGGER = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private static final Date lastModifiedDate = new Date();
private final IconProvider iconResolver;
public IconResourceProvider(IconProvider iconProviderDispatcher) {
this.iconResolver = iconProviderDispatcher;
}
@Override
public Resource getResource(String servletPath, String relativeResourcePath, String httpSessionId) {
if (relativeResourcePath == null) {
return null;
}
if (relativeResourcePath.startsWith("/")) {
relativeResourcePath = relativeResourcePath.substring(1);
}
if (relativeResourcePath.endsWith("/")) {
relativeResourcePath = relativeResourcePath.substring(0, relativeResourcePath.length() - 1);
}
String[] parts = relativeResourcePath.split("@");
String qualifiedEncodedIcon = parts[0];
int size = parts.length > 1 ? getInt(parts[parts.length - 1]) : -1;
IconResource iconResource = iconResolver.loadIcon(qualifiedEncodedIcon, size);
if (iconResource != null) {
return new Resource() {
@Override
public InputStream getInputStream() {
return new ByteArrayInputStream(iconResource.getBytes());
}
@Override
public long getLength() {
return iconResource.getLength();
}
@Override
public Date getLastModified() {
return lastModifiedDate;
}
@Override
public Date getExpires() {
return new Date(System.currentTimeMillis() + 86_400_000L * 60);
}
@Override
public String getMimeType() {
return iconResource.getMimeType();
}
};
} else {
return null;
}
}
private int getInt(String s) {
if (s == null) {
return -1;
}
try {
return Integer.parseInt(s);
} catch (Throwable ignore) {
}
return -1;
}
}