java.fedora.utilities.policyEditor.Utility Maven / Gradle / Ivy

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The Fedora Client is a Java Library that allows API access to a Fedora Repository. The client is typically one part of a full Fedora installation.
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/*
 * -----------------------------------------------------------------------------
 *
 * License and Copyright: The contents of this file are subject to 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.fedora-commons.org/licenses.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 *
 * The entire file consists of original code.
 * Copyright © 2008 Fedora Commons, Inc.

 * 
Copyright © 2002-2007 The Rector and Visitors of the University of 
 * Virginia and Cornell University
 
 * All rights reserved.
 *
 * -----------------------------------------------------------------------------
 */
package fedora.utilities.policyEditor;

import java.awt.BorderLayout;
import java.awt.Component;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

import org.kxml2.io.KXmlParser;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

/*
 * Created on May 20, 2005
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */

/**
 * @author diglib
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class Utility {
	static XmlPullParser xr = null;

	static Object semaphore = null;

	/**
	 * 
	 */
	private Utility() {
		// TODO Auto-generated constructor stub
	}

	public static String camelCasify(String input) {
		Matcher m = Pattern.compile("[- ][a-z]").matcher(input);
		String output = "";
		int start = 0;
		while (m.find()) {
			output = output + input.substring(start, m.start())
					+ input.substring(m.start(), m.end()).toUpperCase();
			start = m.end();
		}
		output = output + input.substring(start);

		output = output.replaceAll(" ", "");
		return (output);
	}

	public static Component makeLabeledTextField(String label) {
		JPanel panel = new JPanel() {
			private static final long serialVersionUID = 1L;
			public String toString() {
				return (this.getComponent(1).toString());
			}
		};
		panel.setLayout(new BorderLayout());
		panel.add(new JLabel(label), BorderLayout.WEST);
		panel.add(new JTextField(), BorderLayout.CENTER);
		return (panel);
	}

	public static FedoraNode findNodeByShortName(FedoraNode node,
			String shortname) {
		if (node.getShortname().equals(shortname)) {
			return (node);
		} else {
			for (int i = 0; i < node.getChildren().length; i++) {
				FedoraNode match = findNodeByShortName((FedoraNode) (node
						.getChildren()[i]), shortname);
				if (match != null)
					return (match);
			}
		}
		return (null);
	}

	public static String getParamFromConfig(String fedoraHome,
			String configDir, String role, String paramName) {
		File dir = new File(fedoraHome, configDir);
		File config = new File(dir, "fedora.fcfg");
		return (readParamFromFile(role, paramName, config));
	}

	private static String readParamFromInputStream(String role,
			String paramName, InputStream stream, String name) {
		if (xr == null) {
			xr = new KXmlParser();
			semaphore = new Object();
		}
		System.out.println("Opening metadata url " + name);
		try {
			synchronized (semaphore) {
				xr.setInput(new InputStreamReader(stream));
				return parseConfig(xr, role, paramName);
			}
		} catch (FileNotFoundException e) {
			System.out.println("Unable to open URL: " + name);
		} catch (IOException ioe) {
			System.out.println("Problems reading file: " + name);
		} catch (XmlPullParserException ioe) {
			System.out.println("Error parsing file: " + name);
		}
		return (null);
	}

	static String readParamFromFile(String role, String paramName, File file) {
		try {
			return (readParamFromInputStream(role, paramName,
					new FileInputStream(file), file.toString()));
		} catch (FileNotFoundException e) {
			System.out.println("Problems Opening File: " + file.toString());
			return (null);
		}
	}

	protected static String parseConfig(XmlPullParser xr, String role,
			String paramName) throws XmlPullParserException, IOException {
		int eventType = xr.getEventType();
		boolean insideCorrectRole = false;
		String returnVal = null;
		while (eventType != XmlPullParser.END_DOCUMENT) {
			if (eventType == XmlPullParser.START_DOCUMENT) {
			} else if (eventType == XmlPullParser.END_DOCUMENT) {
			} else if (eventType == XmlPullParser.START_TAG) {
				if (xr.getName().equals("module")) {
					String moduleRole = xr.getAttributeValue(null, "role");
					if (role.equals(moduleRole)) {
						insideCorrectRole = true;
					}
				}
				if (insideCorrectRole && xr.getName().equals("param")) {
					String moduleParamName = xr.getAttributeValue(null, "name");
					if (paramName.equals(moduleParamName)) {
						returnVal = xr.getAttributeValue(null, "value");
					}
				}
			} else if (eventType == XmlPullParser.END_TAG) {
				if (xr.getName().equals("module")) {
					String moduleRole = xr.getAttributeValue(null, "role");
					if (role.equals(moduleRole)) {
						insideCorrectRole = false;
					}
				}
			} else if (eventType == XmlPullParser.TEXT) {
			}
			eventType = xr.next();
		}
		return (returnVal);
	}

}