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Utility classes and methods developed for Brooklyn but not dependendent on Brooklyn or much else

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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
 * "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.brooklyn.util.internal;

public class StringSystemProperty {

    // TODO replace usages of this and related items with ConfigKeys
    
    public StringSystemProperty(String name) {
        this.propertyName = name;
    }

    private final String propertyName;

    public String getPropertyName() {
        return propertyName;
    }

    public boolean isAvailable() {
        String property = System.getProperty(getPropertyName());
        return property!=null;
    }
    public boolean isNonEmpty() {
        String property = System.getProperty(getPropertyName());
        return property!=null && !property.equals("");
    }
    public String getValue() {
        return System.getProperty(getPropertyName());
    }
    @Override
    public String toString() {
        return getPropertyName()+(isAvailable()?"="+getValue():"(unset)");
    }
}