org.openstack4j.model.compute.actions.BaseActionOptions Maven / Gradle / Ivy

package org.openstack4j.model.compute.actions;

import java.util.Iterator;
import java.util.Map;

import com.google.common.collect.Maps;

public class BaseActionOptions {

    private static final String OPT_FMT = "\"%s\": \"%s\"";
    
    public interface OptionEnum {
        String getParam();
    }
    
    private Map options = Maps.newHashMap();

    protected BaseActionOptions() { }
    
    protected void add(OptionEnum option, Object value) {
        options.put(option, value);
    }
    
    @SuppressWarnings("unchecked")
    protected  T get(OptionEnum option) {
        return (T) options.get(option);
    }
    
    /**
     * @return A JSON String representing this object
     */
    public String toJsonString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{\n");
        Iterator it = options.keySet().iterator();
        while (it.hasNext()) {
            OptionEnum opt = it.next();
            sb.append(String.format(OPT_FMT, opt.getParam(), options.get(opt)));
            if (it.hasNext())
                sb.append(",\n");
        }
        sb.append("\n}");
        return sb.toString();
    }
    
}