/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.
*/
package org.jboss.arquillian.config.impl.extension;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
/**
* FileUtils
*
* @author <a href="mailto:aslak@redhat.com">Aslak Knutsen</a>
* @version $Revision: $
*/
class FileUtils {
static Properties loadArquillianProperties(String propertyName, String defaultName) {
Properties props = new Properties();
FileName resourceName = getConfigFileName(propertyName, defaultName);
final InputStream input = loadResource(resourceName);
if (input != null) {
try {
props.load(input);
} catch (IOException e) {
throw new RuntimeException("Could not load Arquillian properties file, " + resourceName.getName(), e);
}
}
props.putAll(System.getProperties());
return props;
}
static InputStream loadArquillianXml(String propertyName, String defaultName) {
FileName resourceName = getConfigFileName(propertyName, defaultName);
return loadResource(resourceName);
}
static InputStream loadResource(FileName resourceName) {
InputStream stream = loadClassPathResource(resourceName.getName());
if (stream == null) {
stream = loadFileResource(resourceName.getName());
}
// only throw Exception if configured (non default) could not be found
if (stream == null && !resourceName.isDefault()) {
throw new IllegalArgumentException(
"Could not find configured filename as either classpath resource nor file resource: "
+ resourceName.getName());
}
return stream;
}
static InputStream loadFileResource(String resourceName) {
File file = new File(resourceName);
if (file.exists()) {
try {
return new FileInputStream(file);
} catch (FileNotFoundException e) {
// should not happen unless file has been deleted since we did file.exists call
throw new IllegalArgumentException("Configuration file could not be found, " + resourceName);
}
}
return null;
}
static InputStream loadClassPathResource(String resourceName) {
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
return classLoader.getResourceAsStream(resourceName);
}
static FileName getConfigFileName(String propertyName, String defaultName) {
String name = System.getProperty(propertyName);
if (name == null) {
return new FileName(defaultName, true);
}
return new FileName(name, false);
}
static class FileName {
private String name;
private boolean isDefault;
public FileName(String name, boolean isDefault) {
this.name = name;
this.isDefault = isDefault;
}
public String getName() {
return name;
}
public boolean isDefault() {
return isDefault;
}
}
}