SimpleClasspathHelper.java

package fr.sii.ogham.core.util.classpath;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Helper for classpath management.
 * 
 * @author Aurélien Baudet
 *
 */
public class SimpleClasspathHelper implements ClasspathHelper {
	private static final Logger LOG = LoggerFactory.getLogger(SimpleClasspathHelper.class);
	
	private ClassLoader classLoader;
	
	public SimpleClasspathHelper() {
		super();
		classLoader = null;
	}

	/**
	 * Test if the class name is defined in the classpath.
	 * 
	 * @param className
	 *            the class name
	 * @return true if the class exists in the classpath, false otherwise
	 */
	public boolean exists(String className) {
		if(this.classLoader!=null) {
			if(exists(className, this.classLoader)) {
				LOG.debug("class {} found using class specific class loader", className);
				return true;
			}
			return false;
		}
		if(existsWithDefaultClassLoader(className)) {
			LOG.debug("class {} found using default class loader", className);
			return true;
		}
		if(exists(className, Thread.currentThread().getContextClassLoader())) {
			LOG.debug("class {} found using class loader of current thread", className);
			return true;
		}
		if(exists(className, getClass().getClassLoader())) {
			LOG.debug("class {} found using class loader of current class", className);
			return true;
		}
		return false;
	}

	private static boolean existsWithDefaultClassLoader(String className) {
		try {
			Class.forName(className);
			return true;
		} catch (ClassNotFoundException e) {
			LOG.debug("Class {} not found", className);
			LOG.trace("Cause:", e);
			return false;
		} catch (NoClassDefFoundError e) {
			LOG.debug("Class {} can't be loaded", className);
			LOG.trace("Cause:", e);
			return isForSameClass(className, e);
		}
	}

	private static boolean exists(String className, ClassLoader classLoader) {
		try {
			Class.forName(className, false, classLoader);
			return true;
		} catch (ClassNotFoundException e) {
			LOG.debug("Class {} not found", className);
			LOG.trace("Cause:", e);
			return false;
		} catch (NoClassDefFoundError e) {
			LOG.debug("Class {} can't be loaded", className);
			LOG.trace("Cause:", e);
			return !isForSameClass(className, e);
		}
	}

	private static boolean isForSameClass(String className, NoClassDefFoundError e) {
		return className.equals(e.getMessage().replace("/", "."));
	}

	public void setClassLoader(ClassLoader classLoader) {
		this.classLoader = classLoader;
	}

	public void resetClassLoader() {
		this.classLoader = null;
	}
}




















Active mutators

Tests examined

Report generated by PIT 1.13.1

1		package fr.sii.ogham.core.util.classpath;
2
3		import org.slf4j.Logger;
4		import org.slf4j.LoggerFactory;
5
6
7		/**
8		* Helper for classpath management.
9		*
10		* @author Aurélien Baudet
11		*
12		*/
13		public class SimpleClasspathHelper implements ClasspathHelper {
14		private static final Logger LOG = LoggerFactory.getLogger(SimpleClasspathHelper.class);
15
16		private ClassLoader classLoader;
17
18		public SimpleClasspathHelper() {
19		super();
20		classLoader = null;
21		}
22
23		/**
24		* Test if the class name is defined in the classpath.
25		*
26		* @param className
27		* the class name
28		* @return true if the class exists in the classpath, false otherwise
29		*/
30		public boolean exists(String className) {
31	1 1. exists : negated conditional → NO_COVERAGE	if(this.classLoader!=null) {
32	1 1. exists : negated conditional → NO_COVERAGE	if(exists(className, this.classLoader)) {
33		LOG.debug("class {} found using class specific class loader", className);
34	1 1. exists : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return true;
35		}
36	1 1. exists : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return false;
37		}
38	1 1. exists : negated conditional → NO_COVERAGE	if(existsWithDefaultClassLoader(className)) {
39		LOG.debug("class {} found using default class loader", className);
40	1 1. exists : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return true;
41		}
42	1 1. exists : negated conditional → NO_COVERAGE	if(exists(className, Thread.currentThread().getContextClassLoader())) {
43		LOG.debug("class {} found using class loader of current thread", className);
44	1 1. exists : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return true;
45		}
46	1 1. exists : negated conditional → NO_COVERAGE	if(exists(className, getClass().getClassLoader())) {
47		LOG.debug("class {} found using class loader of current class", className);
48	1 1. exists : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return true;
49		}
50	1 1. exists : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return false;
51		}
52
53		private static boolean existsWithDefaultClassLoader(String className) {
54		try {
55		Class.forName(className);
56	1 1. existsWithDefaultClassLoader : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE	return true;
57		} catch (ClassNotFoundException e) {
58		LOG.debug("Class {} not found", className);
59		LOG.trace("Cause:", e);
60	1 1. existsWithDefaultClassLoader : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE	return false;
61		} catch (NoClassDefFoundError e) {
62		LOG.debug("Class {} can't be loaded", className);
63		LOG.trace("Cause:", e);
64	2 1. existsWithDefaultClassLoader : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE 2. existsWithDefaultClassLoader : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE	return isForSameClass(className, e);
65		}
66		}
67
68		private static boolean exists(String className, ClassLoader classLoader) {
69		try {
70		Class.forName(className, false, classLoader);
71	1 1. exists : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return true;
72		} catch (ClassNotFoundException e) {
73		LOG.debug("Class {} not found", className);
74		LOG.trace("Cause:", e);
75	1 1. exists : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return false;
76		} catch (NoClassDefFoundError e) {
77		LOG.debug("Class {} can't be loaded", className);
78		LOG.trace("Cause:", e);
79	2 1. exists : negated conditional → NO_COVERAGE 2. exists : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE	return !isForSameClass(className, e);
80		}
81		}
82
83		private static boolean isForSameClass(String className, NoClassDefFoundError e) {
84	2 1. isForSameClass : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::isForSameClass → NO_COVERAGE 2. isForSameClass : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::isForSameClass → NO_COVERAGE	return className.equals(e.getMessage().replace("/", "."));
85		}
86
87		public void setClassLoader(ClassLoader classLoader) {
88		this.classLoader = classLoader;
89		}
90
91		public void resetClassLoader() {
92		this.classLoader = null;
93		}
94		}
		Mutations
31		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE
32		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE
34		1.1 Location : exists Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
36		1.1 Location : exists Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
38		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE
40		1.1 Location : exists Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
42		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE
44		1.1 Location : exists Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
46		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE
48		1.1 Location : exists Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
50		1.1 Location : exists Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
56		1.1 Location : existsWithDefaultClassLoader Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE
60		1.1 Location : existsWithDefaultClassLoader Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE
64		1.1 Location : existsWithDefaultClassLoader Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE 2.2 Location : existsWithDefaultClassLoader Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::existsWithDefaultClassLoader → NO_COVERAGE
71		1.1 Location : exists Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
75		1.1 Location : exists Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
79		1.1 Location : exists Killed by : negated conditional → NO_COVERAGE 2.2 Location : exists Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::exists → NO_COVERAGE
84		1.1 Location : isForSameClass Killed by : replaced boolean return with false for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::isForSameClass → NO_COVERAGE 2.2 Location : isForSameClass Killed by : replaced boolean return with true for fr/sii/ogham/core/util/classpath/SimpleClasspathHelper::isForSameClass → NO_COVERAGE

SimpleClasspathHelper.java

Mutations

Active mutators

Tests examined