Spring Framework example source code file (PathMatchingResourcePatternResolverTests.java)

This example Spring Framework source code file (PathMatchingResourcePatternResolverTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

classes_in_aopalliance, classes_in_aopalliance, classes_in_core_io_support, filenotfoundexception, io, ioexception, ioexception, list, pathmatchingresourcepatternresolver, resource, resource, string, string, test_classes_in_core_io_support, testcase, util

The Spring Framework PathMatchingResourcePatternResolverTests.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * Licensed under 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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.core.io.support;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import junit.framework.TestCase;

import org.springframework.core.io.Resource;

/**
 * If this test case fails, uncomment diagnostics in
 * <code>assertProtocolAndFilenames method.
 *
 * @author Oliver Hutchison
 * @author Juergen Hoeller
 * @since 17.11.2004
 */
public class PathMatchingResourcePatternResolverTests extends TestCase {

	private static final String[] CLASSES_IN_CORE_IO_SUPPORT =
			new String[] {"EncodedResource.class", "LocalizedResourceHelper.class",
										"PathMatchingResourcePatternResolver.class",
										"PropertiesLoaderSupport.class", "PropertiesLoaderUtils.class",
										"ResourceArrayPropertyEditor.class",
										"ResourcePatternResolver.class", "ResourcePatternUtils.class"};

	private static final String[] TEST_CLASSES_IN_CORE_IO_SUPPORT =
			new String[] {"PathMatchingResourcePatternResolverTests.class"};

	private static final String[] CLASSES_IN_AOPALLIANCE =
			new String[] {"Advice.class", "AspectException.class", "ConstructorInterceptor.class",
										"ConstructorInvocation.class", "Interceptor.class", "Invocation.class",
										"Joinpoint.class", "MethodInterceptor.class", "MethodInvocation.class"};

	private PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();


	public void testInvalidPrefixWithPatternElementInIt() throws IOException {
		try {
			resolver.getResources("xx**:**/*.xy");
			fail("Should have thrown FileNotFoundException");
		}
		catch (FileNotFoundException ex) {
			// expected
		}
	}

	public void testSingleResourceOnFileSystem() throws IOException {
		Resource[] resources =
				resolver.getResources("org/springframework/core/io/support/PathMatchingResourcePatternResolverTests.class");
		assertEquals(1, resources.length);
		assertProtocolAndFilename(resources[0], "file", "PathMatchingResourcePatternResolverTests.class");
	}

	public void testSingleResourceInJar() throws IOException {
		Resource[] resources = resolver.getResources("java/net/URL.class");
		assertEquals(1, resources.length);
		assertProtocolAndFilename(resources[0], "jar", "URL.class");
	}

	public void testClasspathStarWithPatternOnFileSystem() throws IOException {
		Resource[] resources = resolver.getResources("classpath*:org/springframework/core/io/sup*/*.class");
		// Have to exclude Clover-generated class files here,
		// as we might be running as part of a Clover test run.
		List noCloverResources = new ArrayList();
		for (int i = 0; i < resources.length; i++) {
			if (resources[i].getFilename().indexOf("$__CLOVER_") == -1) {
				noCloverResources.add(resources[i]);
			}
		}
		resources = (Resource[]) noCloverResources.toArray(new Resource[noCloverResources.size()]);
		assertProtocolAndFilenames(resources, "file", CLASSES_IN_CORE_IO_SUPPORT, TEST_CLASSES_IN_CORE_IO_SUPPORT);
	}

	public void testClasspathWithPatternInJar() throws IOException {
		Resource[] resources = resolver.getResources("classpath:org/aopalliance/**/*.class");
		assertProtocolAndFilenames(resources, "jar", CLASSES_IN_AOPALLIANCE);
	}

	public void testClasspathStartWithPatternInJar() throws IOException {
		Resource[] resources = resolver.getResources("classpath*:org/aopalliance/**/*.class");
		assertProtocolAndFilenames(resources, "jar", CLASSES_IN_AOPALLIANCE);
	}

	private void assertProtocolAndFilename(Resource resource, String urlProtocol, String fileName) throws IOException {
		assertProtocolAndFilenames(new Resource[] {resource}, urlProtocol, new String[] {fileName});
	}

	private void assertProtocolAndFilenames(
			Resource[] resources, String urlProtocol, String[] fileNames1, String[] fileNames2) throws IOException {
		List fileNames = new ArrayList(Arrays.asList(fileNames1));
		fileNames.addAll(Arrays.asList(fileNames2));
		assertProtocolAndFilenames(resources, urlProtocol, (String[]) fileNames.toArray(new String[fileNames.size()]));
	}

	private void assertProtocolAndFilenames(Resource[] resources, String urlProtocol, String[] fileNames)
			throws IOException {

		// Uncomment the following if you encounter problems with matching against the file system
		// It shows file locations.
//		String[] actualNames = new String[resources.length];
//		for (int i = 0; i < resources.length; i++) {
//			actualNames[i] = resources[i].getFilename();
//		}
//		List sortedActualNames = new LinkedList(Arrays.asList(actualNames));
//		List expectedNames = new LinkedList(Arrays.asList(fileNames));
//		Collections.sort(sortedActualNames);
//		Collections.sort(expectedNames);
//		
//		System.out.println("-----------");
//		System.out.println("Expected: " + StringUtils.collectionToCommaDelimitedString(expectedNames));
//		System.out.println("Actual: " + StringUtils.collectionToCommaDelimitedString(sortedActualNames));
//		for (int i = 0; i < resources.length; i++) {
//			System.out.println(resources[i]);
//		}
			
		assertEquals("Correct number of files found", fileNames.length, resources.length);
		for (int i = 0; i < resources.length; i++) {
			Resource resource = resources[i];
			assertEquals(urlProtocol, resource.getURL().getProtocol());
			assertFilenameIn(resource, fileNames);
		}
	}

	private void assertFilenameIn(Resource resource, String[] fileNames) {
		for (int i = 0; i < fileNames.length; i++) {
			if (resource.getFilename().endsWith(fileNames[i])) {
				return;
			}
		}
		fail("resource [" + resource + "] does not have a filename that matches and of the names in 'fileNames'");
	}

}