Groovy example source code file (GenericsGenTest.groovy)

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Java - Groovy tags/keywords

compilerconfiguration, file, file, filesystemcompiler, filesystemcompiler, groovyinterface, groovytestcase, javaclass, javaclass, javainterface, javainterface, string, x, y

The Groovy GenericsGenTest.groovy source code

/*
 * Copyright 2003-2010 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.codehaus.groovy.classgen

import org.codehaus.groovy.tools.*
import org.codehaus.groovy.control.*

class GenericsGenTest extends GroovyTestCase {

    void testCompile() {
        try {
            Class.forName("java.lang.annotation.Annotation");
        }
        catch (Exception ex) {
            return
        }


        File dir = createTempDir("groovy-src-", "-src")
        assertNotNull dir

        def fileList = [
                "JavaClass.java": """
         import java.util.*;

         public abstract class JavaClass<T> implements GroovyInterface {
         }
    """,

                "JavaInterface.java": """
         public interface JavaInterface<X,Y> {
             public X getKey ();
             public Y getValue ();
         }
    """,

                "GroovyInterface.groovy": """
         interface GroovyInterface<X> {
             X method ();
         }
    """,

                "GroovyClass.groovy": """
           class GroovyClass extends JavaClass<String> implements JavaInterface {
               String method() {}
               Long getKey(){}
               Boolean getValue() {}
           }
      """
        ].collect {
            name, text ->
            File file = new File(dir, name)
            file.write text
            file
        }

        CompilerConfiguration config = new CompilerConfiguration()
        config.targetDirectory = createTempDir("groovy-target-", "-target")
        config.jointCompilationOptions = [
                "stubDir": createTempDir("groovy-stub-", "-stub"),
                "namedValues": ["target", "1.5", "source", "1.5"] as String[]
        ]
        config.classpath = "target/classes"
        FileSystemCompiler compiler = new FileSystemCompiler(config)
        compiler.compile(fileList.toArray(new File[fileList.size()]))
    }

    private filesToDelete = []

    void tearDown() {
        filesToDelete.each {file ->
            if (file instanceof File) {
                // remember: null instanceof anything is false
                FileSystemCompiler.deleteRecursive file
            }
        }
    }

    private File createTempDir(prefix, suffix) {
        File tempFile = File.createTempFile(prefix, suffix);
        tempFile.delete();
        tempFile.mkdirs();
        tempFile.deleteOnExit()
        filesToDelete.add(tempFile)
        return tempFile;
    }
}