/*
* 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.karaf.tools.utils;
import org.apache.commons.io.FileUtils;
import org.apache.karaf.tools.utils.model.KarafPropertyEdit;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;
public class KarafPropertiesFile {
private final Properties properties;
private final File propertyFile;
public KarafPropertiesFile(File karafHome, String location) {
this(homedPropFile(karafHome, location));
}
public KarafPropertiesFile(File propertyFile) {
this.propertyFile = propertyFile;
properties = new Properties();
}
private static File homedPropFile(File karafHome, String location) {
File propFile;
if (location.startsWith("/")) {
propFile = new File(karafHome + location);
} else {
propFile = new File(karafHome + "/" + location);
}
return propFile;
}
public void load() throws IOException {
if (!propertyFile.exists()) {
return;
}
properties.load(new FileInputStream(propertyFile));
}
public void put(String key, String value) {
properties.put(key, value);
}
public void extend(String key, String value, boolean prepend) {
if (properties.get(key) == null) {
properties.put(key, value);
return;
} else if (prepend) {
properties.put(key, JoinUtil.join(value, (String) properties.get(key)));
} else {
properties.put(key, JoinUtil.join((String) properties.get(key), value));
}
}
public void apply(KarafPropertyEdit editSpec) {
if ("extend".equals(editSpec.getOperation().getOperation())) {
extend(editSpec.getKey(), editSpec.getValue(), editSpec.getOperation().isPrepend());
} else if ("put".equals(editSpec.getOperation().getOperation())) {
put(editSpec.getKey(), editSpec.getValue());
} else {
throw new IllegalArgumentException("Operation must be 'extend' or 'put', not " + editSpec.getOperation());
}
}
public String get(String key) {
return properties.getProperty(key);
}
public void store() throws IOException {
store(propertyFile);
}
public void store(File destinationFile) throws IOException {
try (FileOutputStream outputStream = new FileOutputStream(destinationFile)) {
properties.store(outputStream, String.format("Modified by %s", getClass().getName()));
}
}
public void replace(File source) {
try {
FileUtils.copyFile(source, propertyFile);
}
catch (IOException e) {
throw new IllegalStateException(String.format("Failed to replace %s", propertyFile.getAbsolutePath()), e);
}
}
}