/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.jasper.compiler;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import org.apache.commons.jci.compilers.CompilationResult;
import org.apache.commons.jci.compilers.JavaCompiler;
import org.apache.commons.jci.compilers.JavaCompilerFactory;
import org.apache.commons.jci.compilers.JavaCompilerSettings;
import org.apache.commons.jci.problems.CompilationProblem;
import org.apache.commons.jci.readers.FileResourceReader;
import org.apache.commons.jci.stores.FileResourceStore;
import org.apache.jasper.JasperException;
/**
* JDT class compiler. This compiler will load source dependencies from the
* context classloader, reducing dramatically disk access during
* the compilation process.
*
* @author Cocoon2
* @author Remy Maucherat
*/
public class JCICompiler extends org.apache.jasper.compiler.Compiler {
/**
* Compile the servlet from .java file to .class file
*/
protected void generateClass(String[] smap)
throws FileNotFoundException, JasperException, Exception {
long t1 = 0;
if (log.isDebugEnabled()) {
t1 = System.currentTimeMillis();
}
String packageName = ctxt.getServletPackageName();
ClassLoader classLoader = ctxt.getJspLoader();
String targetResource = (((packageName.length() != 0) ? (packageName + ".") : "")
+ ctxt.getServletClassName()).replace('.', '/') + ".java";
String[] resources = new String[] {targetResource};
JavaCompiler javaCompiler = (new JavaCompilerFactory()).createCompiler(options.getCompiler().substring(4));
FileResourceReader reader = new FileResourceReader(ctxt.getOptions().getScratchDir());
FileResourceStore store = new FileResourceStore(ctxt.getOptions().getScratchDir());
JavaCompilerSettings settings = javaCompiler.createDefaultSettings();
if (settings == null) {
settings = new JavaCompilerSettings();
}
settings.setDeprecations(false);
if (ctxt.getOptions().getJavaEncoding() != null) {
settings.setSourceEncoding(ctxt.getOptions().getJavaEncoding());
}
if (ctxt.getOptions().getClassDebugInfo()) {
// No support
}
// Source JVM
if (ctxt.getOptions().getCompilerSourceVM() != null) {
settings.setSourceVersion(ctxt.getOptions().getCompilerSourceVM());
} else {
// Default to 1.5
settings.setSourceVersion("1.5");
}
// Target JVM
if (ctxt.getOptions().getCompilerTargetVM() != null) {
settings.setTargetVersion(ctxt.getOptions().getCompilerTargetVM());
} else {
// Default to 1.5
settings.setTargetVersion("1.5");
}
CompilationResult result = javaCompiler.compile(resources, reader, store, classLoader, settings);
ArrayList<JavacErrorDetail> problemList = new ArrayList<JavacErrorDetail>();
CompilationProblem[] problems = result.getErrors();
if (problems != null) {
try {
for (int i = 0; i < problems.length; i++) {
CompilationProblem problem = problems[i];
problemList.add(ErrorDispatcher.createJavacError
(problem.getFileName(), pageNodes, new StringBuilder(problem.getMessage()),
problem.getStartLine(), ctxt));
}
} catch (JasperException e) {
log.error("Error visiting node", e);
}
}
if (!ctxt.keepGenerated()) {
File javaFile = new File(ctxt.getServletJavaFileName());
javaFile.delete();
}
if (!problemList.isEmpty()) {
JavacErrorDetail[] jeds =
(JavacErrorDetail[]) problemList.toArray(new JavacErrorDetail[0]);
errDispatcher.javacError(jeds);
}
if( log.isDebugEnabled() ) {
long t2=System.currentTimeMillis();
log.debug("Compiled " + ctxt.getServletJavaFileName() + " "
+ (t2-t1) + "ms");
}
if (ctxt.isPrototypeMode()) {
return;
}
// JSR45 Support
if (! options.isSmapSuppressed()) {
SmapUtil.installSmap(smap);
}
}
}