StoryLocation.java

package org.jbehave.core.io;

import static org.apache.commons.lang3.StringUtils.removeStart;

import java.net.MalformedURLException;
import java.net.URL;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

/**
 * <p>
 * Abstraction of a story location, handling cases in which story path is defined
 * as a resource in classpath or as a URL.
 * </p>
 * <p>Given a code location URL and a story path, it provides the methods:
 * <ul>
 * <li>{@link #getURL()}: the story location URL, prefixing the code location external form if story path is not a URL</li>
 * <li>{@link #getPath()}: the story location path, removing the code location external form if story path is a URL</li>
 * </ul>
 * </p>
 */
public class StoryLocation {

	private final URL codeLocation;
	private final String storyPath;
	private final boolean storyPathIsURL;

	public StoryLocation(URL codeLocation, String storyPath) {
		this.codeLocation = codeLocation;
		this.storyPath = storyPath;
		this.storyPathIsURL = isURL(storyPath);
	}

    public URL getCodeLocation() {
		return codeLocation;
	}

	public String getStoryPath() {
		return storyPath;
	}

	public String getURL() {
		if (storyPathIsURL) {
			return storyPath;
		} else {
			return codeLocation.toExternalForm() + storyPath;
		}
	}

	public String getPath() {
		if (storyPathIsURL) {
			return removeStart(storyPath, codeLocation.toExternalForm());
		} else {
			return storyPath;
		}
	}

	private boolean isURL(String path) {
		try {
			new URL(path);
			return true;
		} catch (MalformedURLException e) {
			return false;
		}
	}

	@Override
	public String toString() {
		return ToStringBuilder.reflectionToString(this, 
				ToStringStyle.SHORT_PREFIX_STYLE);
	}
}