org.apache.jackrabbit.oak.plugins.index.importer.PropUtils Maven / Gradle / Ivy
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* 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.jackrabbit.oak.plugins.index.importer;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;
import static com.google.common.base.Preconditions.checkNotNull;
final class PropUtils {
static Properties loadFromFile(File file) throws IOException {
try (InputStream is = new BufferedInputStream(new FileInputStream(file))) {
Properties p = new Properties();
p.load(is);
return p;
}
}
static String getProp(Properties p, String key) {
return checkNotNull(p.getProperty(key), "No property named [%s] found", key);
}
static void writeTo(Properties p, File file, String comment) throws IOException {
try (OutputStream os = new BufferedOutputStream(new FileOutputStream(file))) {
p.store(os, comment);
}
}
}