org.apache.cxf.transport.servlet.ServletContextResourceResolver Maven / Gradle / Ivy
/**
* 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.cxf.transport.servlet;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.naming.InitialContext;
import javax.servlet.ServletContext;
import org.apache.cxf.resource.ResourceResolver;
public class ServletContextResourceResolver implements ResourceResolver {
ServletContext servletContext;
Map urlMap = new ConcurrentHashMap();
public ServletContextResourceResolver(ServletContext sc) {
servletContext = sc;
}
public final InputStream getAsStream(final String string) {
if (urlMap.containsKey(string)) {
try {
return urlMap.get(string).openStream();
} catch (IOException e) {
//ignore
}
}
return servletContext.getResourceAsStream(string);
}
public final T resolve(final String entryName, final Class clz) {
Object obj = null;
try {
if (entryName != null) {
InitialContext ic = new InitialContext();
try {
obj = ic.lookup(entryName);
} finally {
ic.close();
}
}
} catch (Throwable e) {
//do nothing
}
if (obj != null && clz.isInstance(obj)) {
return clz.cast(obj);
}
if (clz.isAssignableFrom(URL.class)) {
if (urlMap.containsKey(entryName)) {
return clz.cast(urlMap.get(entryName));
}
try {
URL url = servletContext.getResource(entryName);
if (url != null
&& "file".equals(url.getProtocol())
&& !(new File(url.toURI()).exists())) {
url = null;
}
if (url != null) {
urlMap.put(url.toString(), url);
return clz.cast(url);
}
} catch (MalformedURLException e) {
//fallthrough
} catch (URISyntaxException e) {
//ignore
}
try {
URL url = servletContext.getResource("/" + entryName);
if (url != null
&& "file".equals(url.getProtocol())
&& !(new File(url.toURI()).exists())) {
url = null;
}
if (url != null) {
urlMap.put(url.toString(), url);
return clz.cast(url);
}
} catch (MalformedURLException e1) {
//ignore
} catch (URISyntaxException e) {
//ignore
}
} else if (clz.isAssignableFrom(InputStream.class)) {
return clz.cast(getAsStream(entryName));
}
return null;
}
}