Spring Framework example source code file (CommonsAttributeCompilerUtils.java)

This example Spring Framework source code file (CommonsAttributeCompilerUtils.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

attributecompiler, attributecompiler, commonsattributecompilerutils, file, file, fileset, io, javac, marker_file, path, project, project, string, string

The Spring Framework CommonsAttributeCompilerUtils.java source code

/*
 * Copyright 2002-2005 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.metadata.commons;

import java.io.File;

import org.apache.commons.attributes.compiler.AttributeCompiler;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Javac;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.Path;

import org.springframework.core.ControlFlowFactory;

/**
 * <p>Programmatic support classes for compiling with Commons Attributes
 * so that tests can run within Eclipse.</p>
 * 
 * <p>tools.jar needs to be on the Eclipse classpath (just add it explicitly when setting up
 * the JDK. This class also has a dependency on the target test tree beeing '/target/test-classes'</p>
 * 
 * @author Rod Johnson
 */
public class CommonsAttributeCompilerUtils {

	public static final String MARKER_FILE = "/org/springframework/beans/BeanFactory.class";
	
	public static void compileAttributesIfNecessary(String testWildcards) {
		if (inIde()) {
			ideAttributeCompile(testWildcards);
		}
	}

	public static boolean inIde() {
		return inEclipse() || inIdea();
	}

	private static boolean inIdea() {
		return ControlFlowFactory.createControlFlow().underToken("com.intellij");
	}

	public static boolean inEclipse() {
		// Use our AOP control flow functionality
		return ControlFlowFactory.createControlFlow().underToken("eclipse.jdt");
	}

	public static void ideAttributeCompile(String testWildcards) {
		System.out.println("Compiling attributes under IDE");
		Project project = new Project();
		
		//URL markerUrl = CommonsAttributeCompilerUtils.class.getResource(MARKER_FILE);
		//File markerFile = new File(markerUrl.getFile());
		// we know marker is in /target/test-classes
		File root = new File("./");
		
		project.setBaseDir(root);
		project.init();

		AttributeCompiler commonsAttributesCompiler = new AttributeCompiler();
		commonsAttributesCompiler.setProject(project);

		//commonsAttributesCompiler.setSourcepathref("test");
		String tempPath = "target/generated-commons-attributes-src";
		commonsAttributesCompiler.setDestdir(new File(tempPath));
		FileSet fileset = new FileSet();
		fileset.setDir(new File(root.getPath() + File.separator + "test"));
		String attributeClasses = testWildcards;
		fileset.setIncludes(attributeClasses);
		commonsAttributesCompiler.addFileset(fileset);

		commonsAttributesCompiler.execute();

		System.out.println("Compiling Java sources generated by Commons Attributes using Javac: requires tools.jar on Eclipse project classpath");
		// We now have the generated Java source: compile it.
		// This requires Javac on the source path
		Javac javac = new Javac();
		javac.setProject(project);
		//project.setCoreLoader(Thread.currentThread().getContextClassLoader());
		Path path = new Path(project, tempPath);
		javac.setSrcdir(path);

		// Couldn't get this to work: trying to use Eclipse
		//javac.setCompiler("org.eclipse.jdt.core.JDTCompilerAdapter");
		File destDir = new File(root.getPath() + File.separator + "target/test-classes");
		if(!destDir.exists()) {
			destDir.mkdir();
		}

		javac.setDestdir(destDir);
		javac.setIncludes(attributeClasses);
		javac.execute();
	}

}