com.thoughtworks.selenium.DefaultRemoteCommand.java Source code

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Here is the source code for com.thoughtworks.selenium.DefaultRemoteCommand.java

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/*
 * Copyright 2011 Software Freedom Conservancy.
 *
 *  Licensed 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.thoughtworks.selenium;

import org.openqa.selenium.net.Urls;

/**
 * The default implementation of the RemoteCommand interface
 * 
 * @see com.thoughtworks.selenium.RemoteCommand
 * @author Paul Hammant
 * @version $Revision$
 */
public class DefaultRemoteCommand implements RemoteCommand {
    // as we have beginning and ending pipes, we will have 1 more entry than we need
    private static final int NUMARGSINCLUDINGBOUNDARIES = 4;
    private static final int FIRSTINDEX = 1;
    private static final int SECONDINDEX = 2;
    private static final int THIRDINDEX = 3;
    private final String command;
    private final String[] args;

    public DefaultRemoteCommand(String command, String[] args) {
        this.command = command;
        this.args = args;
        if ("selectWindow".equals(command) && args[0] == null) {
            // hackylicious I know, but what a dorky interface! Users naturally give us too much credit,
            // and submit a null argument
            // instead of a string "null". Our code elsewhere assumes that all arguments are non-null, so
            // I fix this up here in order to avoid trouble later:
            args[0] = "null";
        }
    }

    public String getCommandURLString() {
        StringBuffer sb = new StringBuffer("cmd=");
        sb.append(Urls.urlEncode(command));
        if (args == null)
            return sb.toString();
        for (int i = 0; i < args.length; i++) {
            sb.append('&');
            sb.append(Integer.toString(i + 1));
            sb.append('=');
            sb.append(Urls.urlEncode(args[i]));
        }
        return sb.toString();
    }

    @Override
    public String toString() {
        return getCommandURLString();
    }

    /** Factory method to create a RemoteCommand from a wiki-style input string */
    public static RemoteCommand parse(String inputLine) {
        if (null == inputLine)
            throw new NullPointerException("inputLine can't be null");
        String[] values = inputLine.split("\\|");
        if (values.length != NUMARGSINCLUDINGBOUNDARIES) {
            throw new IllegalStateException("Cannot parse invalid line: " + inputLine + values.length);
        }
        return new DefaultRemoteCommand(values[FIRSTINDEX],
                new String[] { values[SECONDINDEX], values[THIRDINDEX] });
    }

}