Subversion Repositories XServices

package net.brutex.xservices.util;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

/**

 * A struct containing the various bits of information in a CVS root string,

 * allowing easy retrieval of individual items of information

 */

public class CVSRoot {

	public String connectionType;

	public String user;

	public String host;

	public String repository;

	public CVSRoot(String root) throws IllegalArgumentException {

		if (!root.startsWith(":"))

			throw new IllegalArgumentException();

		int oldColonPosition = 0;

		int colonPosition = root.indexOf(':', 1);

		if (colonPosition == -1)

			throw new IllegalArgumentException();

		connectionType = root.substring(oldColonPosition + 1, colonPosition);

		oldColonPosition = colonPosition;

		colonPosition = root.indexOf('@', colonPosition + 1);

		if (colonPosition == -1)

			throw new IllegalArgumentException();

		user = root.substring(oldColonPosition + 1, colonPosition);

		oldColonPosition = colonPosition;

		colonPosition = root.indexOf(':', colonPosition + 1);

		if (colonPosition == -1)

			throw new IllegalArgumentException();

		host = root.substring(oldColonPosition + 1, colonPosition);

		repository = root.substring(colonPosition + 1);

		if (connectionType == null || user == null || host == null

				|| repository == null)

			throw new IllegalArgumentException();

	}

	public String getCVSRoot(File directory) {

		String root = null;

		BufferedReader r = null;

		try {

			File rootFile = new File(directory, "CVS/Root");

			if (rootFile.exists()) {

				r = new BufferedReader(new FileReader(rootFile));

				root = r.readLine();

			}

		} catch (IOException e) {

			// ignore

		} finally {

			try {

				if (r != null)

					r.close();

			} catch (IOException e) {

				System.err.println("Warning: could not close CVS/Root file!");

			}

		}

		if (root == null) {

			root = System.getProperty("cvs.root");

		}

		return root;

	}

}