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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.nashorn.internal.runtime.options;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.StringTokenizer;
/**
* Key Value option such as logger. It comes on the format
* such as:
*
* {@code --log=module1:level1,module2:level2... }
*/
public class KeyValueOption extends Option<String> {
/**
* Map of keys given
*/
protected Map<String, String> map;
KeyValueOption(final String value) {
super(value);
initialize();
}
Map<String, String> getValues() {
return Collections.unmodifiableMap(map);
}
/**
* Check if the key value option has a value or if it has not
* been initialized
* @param key the key
* @return value, or null if not initialized
*/
public boolean hasValue(final String key) {
return map != null && map.get(key) != null;
}
String getValue(final String key) {
if (map == null) {
return null;
}
final String val = map.get(key);
return "".equals(val) ? null : val;
}
private void initialize() {
if (getValue() == null) {
return;
}
map = new LinkedHashMap<>();
final StringTokenizer st = new StringTokenizer(getValue(), ",");
while (st.hasMoreElements()) {
final String token = st.nextToken();
final String[] keyValue = token.split(":");
if (keyValue.length == 1) {
map.put(keyValue[0], "");
} else if (keyValue.length == 2) {
map.put(keyValue[0], keyValue[1]);
} else {
throw new IllegalArgumentException(token);
}
}
}
}
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