/*
* Copyright 2012 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.gradle.api.internal.tasks.compile;
import org.gradle.api.internal.tasks.SimpleWorkResult;
import org.gradle.api.tasks.WorkResult;
import org.gradle.language.base.internal.compile.Compiler;
import org.gradle.process.ExecResult;
import org.gradle.process.internal.ExecHandle;
import org.gradle.process.internal.ExecHandleBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Serializable;
/**
* Executes the Java command line compiler specified in {@code JavaCompileSpec.forkOptions.getExecutable()}.
*/
public class CommandLineJavaCompiler implements Compiler<JavaCompileSpec>, Serializable {
private static final Logger LOGGER = LoggerFactory.getLogger(CommandLineJavaCompiler.class);
private final CompileSpecToArguments<JavaCompileSpec> argumentsGenerator = new CommandLineJavaCompilerArgumentsGenerator();
public WorkResult execute(JavaCompileSpec spec) {
String executable = spec.getCompileOptions().getForkOptions().getExecutable();
LOGGER.info("Compiling with Java command line compiler '{}'.", executable);
ExecHandle handle = createCompilerHandle(executable, spec);
executeCompiler(handle);
return new SimpleWorkResult(true);
}
private ExecHandle createCompilerHandle(String executable, JavaCompileSpec spec) {
ExecHandleBuilder builder = new ExecHandleBuilder();
builder.setWorkingDir(spec.getWorkingDir());
builder.setExecutable(executable);
argumentsGenerator.collectArguments(spec, new ExecSpecBackedArgCollector(builder));
builder.setIgnoreExitValue(true);
return builder.build();
}
private void executeCompiler(ExecHandle handle) {
handle.start();
ExecResult result = handle.waitForFinish();
if (result.getExitValue() != 0) {
throw new CompilationFailedException(result.getExitValue());
}
}
}