com.googlecode.jpattern.rest.command.BuildQueryMapCommand Maven / Gradle / Ivy

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package com.googlecode.jpattern.rest.command;

import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import com.googlecode.jpattern.core.command.ACommand;
import com.googlecode.jpattern.core.command.ICommand;
import com.googlecode.jpattern.core.command.ICommandResult;
import com.googlecode.jpattern.core.command.NullCommand;
import com.googlecode.jpattern.rest.domain.URLPath;
import com.googlecode.jpattern.shared.result.ErrorMessage;

/**
 * 
 * @author Francesco Cina'
 *
 * 12/mag/2011
 */
public class BuildQueryMapCommand extends ACommand {

	private static final long serialVersionUID = 1L;
	private final URLPath urlPath;
	private final Map> resultQueryMap;

	public BuildQueryMapCommand(URLPath urlPath, Map> resultQueryMap) {
		this(urlPath, resultQueryMap, new NullCommand());
	}
	
	public BuildQueryMapCommand(URLPath urlPath, Map> resultQueryMap, ICommand previousCommand) {
		super(previousCommand);
		this.urlPath = urlPath;
		this.resultQueryMap = resultQueryMap;
	}

	@Override
	protected void result(ICommandResult result) {
		if (urlPath.getQueryString().length() > 0) {
			try {
				String query = urlPath.getQueryString();
				for (String param : query.split("&")) {
					String[] pair = param.split("=");
					String key = URLDecoder.decode(pair[0], "UTF-8");
					String value = URLDecoder.decode(pair[1], "UTF-8");
					List values = resultQueryMap.get(key);
					if (values == null) {
						values = new ArrayList();
						resultQueryMap.put(key, values);
					}
					values.add(value);
					resultQueryMap.put(key, values);
				}
			} catch (Exception e) {
				result.addErrorMessage(new ErrorMessage(getClass().getName(), e.getMessage()));
				getLogger().error("result", "", e);
			}
		}
	}

	@Override
	protected void internalRollBack(ICommandResult result) {
	}

}