plugins/hypervisors/ucs/src/com/cloud/ucs/manager/StringTemplate.java

// 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 com.cloud.ucs.manager;

import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StringTemplate {
    public static String replaceTokens(String text, Map<String, String> replacements) {
        Pattern pattern = Pattern.compile("\\[(.+?)\\]");
        Matcher matcher = pattern.matcher(text);
        StringBuffer buffer = new StringBuffer();
        while (matcher.find()) {
            String replacement = replacements.get(matcher.group(1));
            if (replacement != null) {
                matcher.appendReplacement(buffer, "");
                buffer.append(replacement);
            }
        }
        matcher.appendTail(buffer);
        return buffer.toString();
    }
}