org.eclipse.jgit/src/org/eclipse/jgit/lib/DefaultTypedConfigGetter.java - jgit - Git at Google

 /*
  * Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch> and others
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Distribution License v. 1.0 which is available at
  * https://www.eclipse.org/org/documents/edl-v10.php.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */

 package org.eclipse.jgit.lib;

 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 import org.eclipse.jgit.annotations.NonNull;
 import org.eclipse.jgit.internal.JGitText;
 import org.eclipse.jgit.lib.Config.ConfigEnum;
 import org.eclipse.jgit.transport.RefSpec;
 import org.eclipse.jgit.util.StringUtils;

 /**
  * An {@link org.eclipse.jgit.lib.TypedConfigGetter} that throws
  * {@link java.lang.IllegalArgumentException} on invalid values.
  *
  * @since 4.9
  */
 public class DefaultTypedConfigGetter implements TypedConfigGetter {

 	@Override
 	public boolean getBoolean(Config config, String section, String subsection,
 			String name, boolean defaultValue) {
 		String n = config.getString(section, subsection, name);
 		if (n == null) {
 			return defaultValue;
 		}
 		if (Config.isMissing(n)) {
 			return true;
 		}
 		try {
 			return StringUtils.toBoolean(n);
 		} catch (IllegalArgumentException err) {
 			throw new IllegalArgumentException(MessageFormat.format(
 					JGitText.get().invalidBooleanValue, section, name, n), err);
 		}
 	}

 	@Override
 	public <T extends Enum<?>> T getEnum(Config config, T[] all, String section,
 			String subsection, String name, T defaultValue) {
 		String value = config.getString(section, subsection, name);
 		if (value == null) {
 			return defaultValue;
 		}
 		if (all[0] instanceof ConfigEnum) {
 			for (T t : all) {
 				if (((ConfigEnum) t).matchConfigValue(value)) {
 					return t;
 				}
 			}
 		}

 		String n = value.replace(' ', '_');

 		// Because of c98abc9c0586c73ef7df4172644b7dd21c979e9d being used in
 		// the real world before its breakage was fully understood, we must
 		// also accept '-' as though it were ' '.
 		n = n.replace('-', '_');

 		T trueState = null;
 		T falseState = null;
 		for (T e : all) {
 			if (StringUtils.equalsIgnoreCase(e.name(), n)) {
 				return e;
 			} else if (StringUtils.equalsIgnoreCase(e.name(), "TRUE")) { //$NON-NLS-1$
 				trueState = e;
 			} else if (StringUtils.equalsIgnoreCase(e.name(), "FALSE")) { //$NON-NLS-1$
 				falseState = e;
 			}
 		}

 		// This is an odd little fallback. C Git sometimes allows boolean
 		// values in a tri-state with other things. If we have both a true
 		// and a false value in our enumeration, assume its one of those.
 		//
 		if (trueState != null && falseState != null) {
 			try {
 				return StringUtils.toBoolean(n) ? trueState : falseState;
 			} catch (IllegalArgumentException err) {
 				// Fall through and use our custom error below.
 			}
 		}

 		if (subsection != null) {
 			throw new IllegalArgumentException(
 					MessageFormat.format(JGitText.get().enumValueNotSupported3,
 							section, subsection, name, value));
 		}
 		throw new IllegalArgumentException(MessageFormat.format(
 				JGitText.get().enumValueNotSupported2, section, name, value));
 	}

 	@Override
 	public int getInt(Config config, String section, String subsection,
 			String name, int defaultValue) {
 		long val = config.getLong(section, subsection, name, defaultValue);
 		if (Integer.MIN_VALUE <= val && val <= Integer.MAX_VALUE) {
 			return (int) val;
 		}
 		throw new IllegalArgumentException(MessageFormat
 				.format(JGitText.get().integerValueOutOfRange, section, name));
 	}

 	@Override
 	public int getIntInRange(Config config, String section, String subsection,
 			String name, int minValue, int maxValue, int defaultValue) {
 		int val = getInt(config, section, subsection, name, defaultValue);
 		if ((val >= minValue && val <= maxValue) || val == UNSET_INT) {
 			return val;
 		}
 		if (subsection == null) {
 			throw new IllegalArgumentException(MessageFormat.format(
 					JGitText.get().integerValueNotInRange, section, name,
 					Integer.valueOf(val), Integer.valueOf(minValue),
 					Integer.valueOf(maxValue)));
 		}
 		throw new IllegalArgumentException(MessageFormat.format(
 				JGitText.get().integerValueNotInRangeSubSection, section,
 				subsection, name, Integer.valueOf(val),
 				Integer.valueOf(minValue), Integer.valueOf(maxValue)));
 	}

 	@Override
 	public long getLong(Config config, String section, String subsection,
 			String name, long defaultValue) {
 		final String str = config.getString(section, subsection, name);
 		if (str == null) {
 			return defaultValue;
 		}
 		try {
 			return StringUtils.parseLongWithSuffix(str, false);
 		} catch (StringIndexOutOfBoundsException e) {
 			// Empty
 			return defaultValue;
 		} catch (NumberFormatException nfe) {
 			throw new IllegalArgumentException(MessageFormat.format(
 					JGitText.get().invalidIntegerValue, section, name, str),
 					nfe);
 		}
 	}

 	@Override
 	public long getTimeUnit(Config config, String section, String subsection,
 			String name, long defaultValue, TimeUnit wantUnit) {
 		String valueString = config.getString(section, subsection, name);

 		if (valueString == null) {
 			return defaultValue;
 		}

 		String s = valueString.trim();
 		if (s.length() == 0) {
 			return defaultValue;
 		}

 		if (s.startsWith("-")/* negative */) { //$NON-NLS-1$
 			throw notTimeUnit(section, subsection, name, valueString);
 		}

 		Matcher m = Pattern.compile("^(0|[1-9][0-9]*)\\s*(.*)$") //$NON-NLS-1$
 				.matcher(valueString);
 		if (!m.matches()) {
 			return defaultValue;
 		}

 		String digits = m.group(1);
 		String unitName = m.group(2).trim();

 		TimeUnit inputUnit;
 		int inputMul;

 		if (unitName.isEmpty()) {
 			inputUnit = wantUnit;
 			inputMul = 1;

 		} else if (match(unitName, "ns", "nanoseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
 			inputUnit = TimeUnit.NANOSECONDS;
 			inputMul = 1;

 		} else if (match(unitName, "us", "microseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
 			inputUnit = TimeUnit.MICROSECONDS;
 			inputMul = 1;

 		} else if (match(unitName, "ms", "milliseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
 			inputUnit = TimeUnit.MILLISECONDS;
 			inputMul = 1;

 		} else if (match(unitName, "s", "sec", "second", "seconds")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 			inputUnit = TimeUnit.SECONDS;
 			inputMul = 1;

 		} else if (match(unitName, "m", "min", "minute", "minutes")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 			inputUnit = TimeUnit.MINUTES;
 			inputMul = 1;

 		} else if (match(unitName, "h", "hr", "hour", "hours")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 			inputUnit = TimeUnit.HOURS;
 			inputMul = 1;

 		} else if (match(unitName, "d", "day", "days")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			inputUnit = TimeUnit.DAYS;
 			inputMul = 1;

 		} else if (match(unitName, "w", "week", "weeks")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			inputUnit = TimeUnit.DAYS;
 			inputMul = 7;

 		} else if (match(unitName, "mon", "month", "months")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			inputUnit = TimeUnit.DAYS;
 			inputMul = 30;

 		} else if (match(unitName, "y", "year", "years")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 			inputUnit = TimeUnit.DAYS;
 			inputMul = 365;

 		} else {
 			throw notTimeUnit(section, subsection, name, valueString);
 		}

 		try {
 			return wantUnit.convert(Long.parseLong(digits) * inputMul,
 					inputUnit);
 		} catch (NumberFormatException nfe) {
 			IllegalArgumentException iae = notTimeUnit(section, subsection,
 					unitName, valueString);
 			iae.initCause(nfe);
 			throw iae;
 		}
 	}

 	private static boolean match(String a, String... cases) {
 		for (String b : cases) {
 			if (b != null && b.equalsIgnoreCase(a)) {
 				return true;
 			}
 		}
 		return false;
 	}

 	private static IllegalArgumentException notTimeUnit(String section,
 			String subsection, String name, String valueString) {
 		if (subsection != null) {
 			return new IllegalArgumentException(
 					MessageFormat.format(JGitText.get().invalidTimeUnitValue3,
 							section, subsection, name, valueString));
 		}
 		return new IllegalArgumentException(
 				MessageFormat.format(JGitText.get().invalidTimeUnitValue2,
 						section, name, valueString));
 	}

 	@Override
 	@NonNull
 	public List<RefSpec> getRefSpecs(Config config, String section,
 			String subsection, String name) {
 		String[] values = config.getStringList(section, subsection, name);
 		List<RefSpec> result = new ArrayList<>(values.length);
 		for (String spec : values) {
 			result.add(new RefSpec(spec));
 		}
 		return result;
 	}
 }
	/*
	* Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch> and others
	*
	* This program and the accompanying materials are made available under the
	* terms of the Eclipse Distribution License v. 1.0 which is available at
	* https://www.eclipse.org/org/documents/edl-v10.php.
	*
	* SPDX-License-Identifier: BSD-3-Clause
	*/

	package org.eclipse.jgit.lib;

	import java.text.MessageFormat;
	import java.util.ArrayList;
	import java.util.List;
	import java.util.concurrent.TimeUnit;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import org.eclipse.jgit.annotations.NonNull;
	import org.eclipse.jgit.internal.JGitText;
	import org.eclipse.jgit.lib.Config.ConfigEnum;
	import org.eclipse.jgit.transport.RefSpec;
	import org.eclipse.jgit.util.StringUtils;

	/**
	* An {@link org.eclipse.jgit.lib.TypedConfigGetter} that throws
	* {@link java.lang.IllegalArgumentException} on invalid values.
	*
	* @since 4.9
	*/
	public class DefaultTypedConfigGetter implements TypedConfigGetter {

	@Override
	public boolean getBoolean(Config config, String section, String subsection,
	String name, boolean defaultValue) {
	String n = config.getString(section, subsection, name);
	if (n == null) {
	return defaultValue;
	}
	if (Config.isMissing(n)) {
	return true;
	}
	try {
	return StringUtils.toBoolean(n);
	} catch (IllegalArgumentException err) {
	throw new IllegalArgumentException(MessageFormat.format(
	JGitText.get().invalidBooleanValue, section, name, n), err);
	}
	}

	@Override
	public <T extends Enum<?>> T getEnum(Config config, T[] all, String section,
	String subsection, String name, T defaultValue) {
	String value = config.getString(section, subsection, name);
	if (value == null) {
	return defaultValue;
	}
	if (all[0] instanceof ConfigEnum) {
	for (T t : all) {
	if (((ConfigEnum) t).matchConfigValue(value)) {
	return t;
	}
	}
	}

	String n = value.replace(' ', '_');

	// Because of c98abc9c0586c73ef7df4172644b7dd21c979e9d being used in
	// the real world before its breakage was fully understood, we must
	// also accept '-' as though it were ' '.
	n = n.replace('-', '_');

	T trueState = null;
	T falseState = null;
	for (T e : all) {
	if (StringUtils.equalsIgnoreCase(e.name(), n)) {
	return e;
	} else if (StringUtils.equalsIgnoreCase(e.name(), "TRUE")) { //$NON-NLS-1$
	trueState = e;
	} else if (StringUtils.equalsIgnoreCase(e.name(), "FALSE")) { //$NON-NLS-1$
	falseState = e;
	}
	}

	// This is an odd little fallback. C Git sometimes allows boolean
	// values in a tri-state with other things. If we have both a true
	// and a false value in our enumeration, assume its one of those.
	//
	if (trueState != null && falseState != null) {
	try {
	return StringUtils.toBoolean(n) ? trueState : falseState;
	} catch (IllegalArgumentException err) {
	// Fall through and use our custom error below.
	}
	}

	if (subsection != null) {
	throw new IllegalArgumentException(
	MessageFormat.format(JGitText.get().enumValueNotSupported3,
	section, subsection, name, value));
	}
	throw new IllegalArgumentException(MessageFormat.format(
	JGitText.get().enumValueNotSupported2, section, name, value));
	}

	@Override
	public int getInt(Config config, String section, String subsection,
	String name, int defaultValue) {
	long val = config.getLong(section, subsection, name, defaultValue);
	if (Integer.MIN_VALUE <= val && val <= Integer.MAX_VALUE) {
	return (int) val;
	}
	throw new IllegalArgumentException(MessageFormat
	.format(JGitText.get().integerValueOutOfRange, section, name));
	}

	@Override
	public int getIntInRange(Config config, String section, String subsection,
	String name, int minValue, int maxValue, int defaultValue) {
	int val = getInt(config, section, subsection, name, defaultValue);
	if ((val >= minValue && val <= maxValue) \|\| val == UNSET_INT) {
	return val;
	}
	if (subsection == null) {
	throw new IllegalArgumentException(MessageFormat.format(
	JGitText.get().integerValueNotInRange, section, name,
	Integer.valueOf(val), Integer.valueOf(minValue),
	Integer.valueOf(maxValue)));
	}
	throw new IllegalArgumentException(MessageFormat.format(
	JGitText.get().integerValueNotInRangeSubSection, section,
	subsection, name, Integer.valueOf(val),
	Integer.valueOf(minValue), Integer.valueOf(maxValue)));
	}

	@Override
	public long getLong(Config config, String section, String subsection,
	String name, long defaultValue) {
	final String str = config.getString(section, subsection, name);
	if (str == null) {
	return defaultValue;
	}
	try {
	return StringUtils.parseLongWithSuffix(str, false);
	} catch (StringIndexOutOfBoundsException e) {
	// Empty
	return defaultValue;
	} catch (NumberFormatException nfe) {
	throw new IllegalArgumentException(MessageFormat.format(
	JGitText.get().invalidIntegerValue, section, name, str),
	nfe);
	}
	}

	@Override
	public long getTimeUnit(Config config, String section, String subsection,
	String name, long defaultValue, TimeUnit wantUnit) {
	String valueString = config.getString(section, subsection, name);

	if (valueString == null) {
	return defaultValue;
	}

	String s = valueString.trim();
	if (s.length() == 0) {
	return defaultValue;
	}

	if (s.startsWith("-")/* negative */) { //$NON-NLS-1$
	throw notTimeUnit(section, subsection, name, valueString);
	}

	Matcher m = Pattern.compile("^(0\|[1-9][0-9])\\s(.*)$") //$NON-NLS-1$
	.matcher(valueString);
	if (!m.matches()) {
	return defaultValue;
	}

	String digits = m.group(1);
	String unitName = m.group(2).trim();

	TimeUnit inputUnit;
	int inputMul;

	if (unitName.isEmpty()) {
	inputUnit = wantUnit;
	inputMul = 1;

	} else if (match(unitName, "ns", "nanoseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
	inputUnit = TimeUnit.NANOSECONDS;
	inputMul = 1;

	} else if (match(unitName, "us", "microseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
	inputUnit = TimeUnit.MICROSECONDS;
	inputMul = 1;

	} else if (match(unitName, "ms", "milliseconds")) { //$NON-NLS-1$ //$NON-NLS-2$
	inputUnit = TimeUnit.MILLISECONDS;
	inputMul = 1;

	} else if (match(unitName, "s", "sec", "second", "seconds")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	inputUnit = TimeUnit.SECONDS;
	inputMul = 1;

	} else if (match(unitName, "m", "min", "minute", "minutes")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	inputUnit = TimeUnit.MINUTES;
	inputMul = 1;

	} else if (match(unitName, "h", "hr", "hour", "hours")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	inputUnit = TimeUnit.HOURS;
	inputMul = 1;

	} else if (match(unitName, "d", "day", "days")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	inputUnit = TimeUnit.DAYS;
	inputMul = 1;

	} else if (match(unitName, "w", "week", "weeks")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	inputUnit = TimeUnit.DAYS;
	inputMul = 7;

	} else if (match(unitName, "mon", "month", "months")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	inputUnit = TimeUnit.DAYS;
	inputMul = 30;

	} else if (match(unitName, "y", "year", "years")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	inputUnit = TimeUnit.DAYS;
	inputMul = 365;

	} else {
	throw notTimeUnit(section, subsection, name, valueString);
	}

	try {
	return wantUnit.convert(Long.parseLong(digits) * inputMul,
	inputUnit);
	} catch (NumberFormatException nfe) {
	IllegalArgumentException iae = notTimeUnit(section, subsection,
	unitName, valueString);
	iae.initCause(nfe);
	throw iae;
	}
	}

	private static boolean match(String a, String... cases) {
	for (String b : cases) {
	if (b != null && b.equalsIgnoreCase(a)) {
	return true;
	}
	}
	return false;
	}

	private static IllegalArgumentException notTimeUnit(String section,
	String subsection, String name, String valueString) {
	if (subsection != null) {
	return new IllegalArgumentException(
	MessageFormat.format(JGitText.get().invalidTimeUnitValue3,
	section, subsection, name, valueString));
	}
	return new IllegalArgumentException(
	MessageFormat.format(JGitText.get().invalidTimeUnitValue2,
	section, name, valueString));
	}

	@Override
	@NonNull
	public List<RefSpec> getRefSpecs(Config config, String section,
	String subsection, String name) {
	String[] values = config.getStringList(section, subsection, name);
	List<RefSpec> result = new ArrayList<>(values.length);
	for (String spec : values) {
	result.add(new RefSpec(spec));
	}
	return result;
	}
	}