org.apache.sshd.common.util.io.resource.ClassLoaderResource 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.sshd.common.util.io.resource;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.StreamCorruptedException;
import org.apache.sshd.common.util.ValidateUtils;
import org.apache.sshd.common.util.threads.ThreadUtils;
/**
* TODO Add javadoc
*
* @author Apache MINA SSHD Project
*/
public class ClassLoaderResource extends AbstractIoResource {
private final String resourceName;
public ClassLoaderResource(ClassLoader loader, String resourceName) {
super(ClassLoader.class, (loader == null) ? ThreadUtils.resolveDefaultClassLoader(ClassLoaderResource.class) : loader);
this.resourceName = ValidateUtils.checkNotNullAndNotEmpty(resourceName, "No resource name provided");
}
public ClassLoader getResourceLoader() {
return getResourceValue();
}
@Override
public String getName() {
return resourceName;
}
@Override
public InputStream openInputStream() throws IOException {
String name = getName();
ClassLoader cl = getResourceLoader();
if (cl == null) {
throw new StreamCorruptedException("No resource loader for " + name);
}
InputStream input = cl.getResourceAsStream(name);
if (input == null) {
throw new FileNotFoundException("Cannot find resource " + name);
}
return input;
}
}